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					                                                                                                              16 April 2010
                                                                                                    Americas/United States
                                                                                                          Equity Research
                                                                            Oil & Gas Equipment & Services / OVERWEIGHT




                                            Insight Onshore
                        Research Analysts
                                             SECTOR REVIEW
                       Arun Jayaram, CFA


                                            U.S. Land Rigcount: Accelerating Activity
                             Brad Handler
                                              ■   Land rigcount surges 23% sequentially. The U.S. onshore rigcount rose
                                                  23% sequentially to average 1,181 rigs in Q1 versus 961 in Q409 (+220
                          Yvonne Fletcher
                                                  rigs) according to data tracked by The Land Rig Newsletter. While our mid-
                                                  quarter update was characterized by particular strength in the gas rigcount,
                           Eduardo Royes          the oil rigcount played catch-up in the second half of Q1, with oil-directed
                                                  activity up 80 rigs in the quarter, or 27% sequentially, to 373, while gas-
                                                  focused activity increased 140 rigs, or 21%, to 809. From the May 2009
                                                  trough of 717, the onshore rigcount has surged 561 rigs, or +78%, to 1,278,
                                                  with oil and gas each accounting for 50% of the total rigcount increase. The
                                                  rigcount growth rate once again accelerated in Q1, as the 23% sequential
                                                  improvement topped the Q4/Q3 uptick of 16%. (Note: analysis includes
                                                  traditional U.S. land rigcount for rigs drilling wells greater than 5,000 ft).
                                              ■   Permits data through March again suggests rigcount is ahead of itself.
                                                  The three-month moving average for permits, which is highly correlated with
                                                  the rigcount (see Exhibit 1), increased 7.8% sequentially in March on top of
                                                  an 8.3% increase in February. However, our permits to rigcount regression
                                                  (96% R-Squared) continues to suggest the U.S. rigcount is ahead of itself
                                                  as recent permit trends support a rigcount 11%, or 154 rigs, below March
                                                  levels (1,265 rigs vs. 1,419 BHI rigcount in March).
                                              ■   Oklahoma and North Dakota drive Q1 strength. On a geographic basis,
                                                  the most significant sequential Q1 rigcount gain was registered in Oklahoma
                                                  (+30 rigs, or +38%, to 108), North Dakota (+19 rigs, or +33%, to 75), Texas
                                                  (+114 rigs, or +27%, to 527), Alaska (+2 rigs, or +26%, to 11), and
                                                  California (+2 rigs, or +24%, to 12). The Rockies rigcount continues to lag,
                                                  with the Wyoming rigcount falling by 5% in Q110 versus Q409 levels (-2 rigs
                                                  to 36).
                                              ■   Bakken, Woodford, and Uinta account for strongest sequential gains,
                                                  while Haynesville and Marcellus lag. The unconventional shale rigcount
                                                  rose 70 rigs, or +16%, to 506 in Q1, which trailed the 29% increase in
                                                  conventional plays given strong oil prices. The Bakken, Woodford, and
                                                  Uinta shale plays registered the strongest quarterly gains in activity, with the
                                                  Bakken rigcount climbing by +19 rigs, or +33%, to 75, the Woodford
                                                  rigcount rising +7 rigs, or +32%, to 27, and the rigcount in the Uinta Basin
                                                  up +4 rigs, or +31%, to 18. The rigcount in two of the largest unconventional
                                                  plays (on a rigcount basis) – the Haynesville (largest) and Marcellus (3rd
                                                  largest) rose at a below average pace, with the Haynesville rigcount up +13,
                                                  or +13%, to 112, while the rigcount in the Marcellus increased by 6 rigs, or
                                                  +9%, to 77. For more details on activity trends for unconventional plays,
                                                  please see Exhibit 123 through Exhibit 137.
                                               (bullets continued on page 2)
DISCLOSURE APPENDIX CONTAINS IMPORTANT DISCLOSURES, ANALYST CERTIFICATIONS, INFORMATION ON
TRADE ALERTS, ANALYST MODEL PORTFOLIOS AND THE STATUS OF NON-U.S ANALYSTS. FOR OTHER
IMPORTANT DISCLOSURES, visit www.credit-suisse.com/ researchdisclosures or call +1 (877) 291-2683. U.S.
Disclosure: Credit Suisse does and seeks to do business with companies covered in its research reports. As a result,
investors should be aware that the Firm may have a conflict of interest that could affect the objectivity of this report. Investors
should consider this report as only a single factor in making their investment decision.
■   Strength in horizontal drilling continues, boding well for OFS
    profitability. Horizontal drilling continues to be much stronger than vertical
    drilling, likely boding well for U.S. onshore levered service companies given
    the higher service intensity related to horizontal wells. On a sequential
    quarterly basis, the horizontal rigcount was up an average of 145 units, or
    30%, to 630, while the implied vertical rigcount climbed by a much smaller
    75 rigs, or +16%, to 551. Since the May 8 trough, horizontal rigs have
    accounted for 68% of the rebound, more than doubling (+382 rigs, or
    +123%, to 693), while the implied vertical rigcount has increased by 44%
    (+179 rigs, to 585 rigs). Please see Exhibit 17 for more detail on horizontal
    rigcount trends.
■   Contractor trends. On a quarterly basis, the biggest sequential jumps in
    activity were registered by Oil States’ Capstar segment (+9 rigs, or +73%, to
    22), Ensign USA (+12 rigs, or +44%, to 38), Patterson-UTI (+36 rigs, or
    +43%, to 121), Unit (+11 rigs, or +34%, to 42) and Bronco Drilling (+2 rigs,
    or +25%, to 12). The rigcounts for the two largest operators –HP and
    NBR—lagged the peer group, reflecting more modest increases in
    unconventional activity relative to conventional activity. HP’s rigcount
    increased by +24 rigs, or +22%, to 130, while Nabors’ rigcount was up by
    13% (+16 rigs to 139) as their rigcount stabilized in the low-to-mid 140 rig
    range beginning mid-quarter.
■   Independents, Large Caps, and Utilities drove rigcount surge.
    Small/Mid Cap Independents and Super Independents drove the biggest
    sequential gains in terms of customer group activity, rising 55 rigs, or +36%,
    to 211, and +23 rigs, or +33%, to 91 in Q1, respectively. The Large Cap
    rigcount rose 103 rigs, or +30%, to 449 sequentially, while the Utility
    Company rigcount increased 6 rigs, or +26%, to 27. Activity at the Privates
    and Major Oils lagged. The quarterly rigcount for the Privates was up just 31
    rigs, or +7%, to 468, while the average rigcount for the Majors actually fell
    by 4 rigs, or -5%, to 69 in Q1 as XOM, BP and COP all lowered their
    rigcounts in the March quarter.
■   E&P trends. As illustrated in Exhibit 5, 30 E&P’s are running 10 or more
    rigs, which is up 2 companies from our mid-quarter update. The biggest
    percentage increases on a quarterly basis were registered by Forest Oil (+7
    rigs, or +128%, to 13), SandRidge (+10 rigs, or +112%, to 20), Chevron (+3
    rigs, or +112%, to 5), Pioneer Natural (+8 rigs, or +104%, to 15) and
    Continental (+6 rigs, or +80%, to 13). Notable on the downside were
    ConocoPhillips (-6 rigs, or -28%, to 16), BP (-1 rig, or -7%, to 16) and
    Newfield (-1 rig, or -7%, to 18) Exhibit 4.
                                                                                                                                                                                                                       16 April 2010




Permits vs. Rigcount
Exhibit 1: U.S. Drilling Permits vs. Rigcount
                                                                                                                                                                                2,400
                                                                                         6,000
                                                                                                                                                                                2,200
                                                                                         5,500
                                                                                                                                                                                2,000
                                                                                         5,000
     3 Mo. Avg. Adjusted Drilling Permits




                                                                                                                                             Rigcount                           1,800
                                                                                         4,500
                                                                                                                                                                                1,600




                                                                                                                                                                                        U.S. Rigcount
                                                                                         4,000
                                                                                                                                                                                1,400
                                                                                         3,500
                                                                                                                                                                                1,200
                                                                                         3,000

                                                                                         2,500                                                                                  1,000

                                                                                                                                                                                800
                                                                                         2,000
                                                                                                                                                            Permits
                                                                                         1,500                                                                                  600

                                                                                         1,000                                                                                  400
                                                                                                               1996    1998   2000    2002   2004       2006      2008   2010

Source: Baker Hughes, IHS, Credit Suisse estimates



Exhibit 2: U.S. Natural Gas Permits vs. Natural Gas Rigcount

                                                                                                                                                                                 1,600
                                                                                                            2,400

                                                                                                                                     Gas Rigcount
                                            U.S. Gas Drilling Permits ex undesignated (3 mo. moving avg.)




                                                                                                                                                                                 1,400

                                                                                                            2,000
                                                                                                                                                                                 1,200
                                                                                                                                                                                                   U.S. Gas Rigcount




                                                                                                            1,600                                                                1,000


                                                                                                                                                                                 800
                                                                                                            1,200

                                                                                                                                                                                 600

                                                                                                             800
                                                                                                                                                    Gas Permits
                                                                                                                                                                                 400


                                                                                                             400                                                                 200
                                                                                                                1996   1998   2000    2002    2004       2006     2008   2010

Source: Baker Hughes, IHS, Credit Suisse estimates




Insight Onshore                                                                                                                                                                                                                   3
                                                                                                                                                                    16 April 2010



Exhibit 3: U.S. Oil Permits vs. Oil Rigcount
         U.S. Oil Drilling Permits ex undesignated (3 mo. moving avg.)   1,800


                                                                                                                                          450

                                                                                             Oil Rigcount
                                                                         1,400

                                                                                                                                          350




                                                                                                                                                U.S. Oil Rigcount
                                                                         1,000
                                                                                                                                          250




                                                                          600
                                                                                                                                          150

                                                                                    Oil Permits

                                                                          200                                                             50
                                                                             1996     1998     2000    2002   2004   2006   2008   2010

Source: Baker Hughes, IHS, Credit Suisse estimates




Insight Onshore                                                                                                                                                                4
                                                                                     16 April 2010




E&P Company Detail
Exhibit 4: Q110 vs. Q409 average E&P rigcount
                                                           Change in #   % change
Operator                          Q110          Q409          rigs       in # rigs
Forest                              13            6            7           128%
SandRidge                           20            9            10         112%
Chevron                             5             2            3          112%
Pioneer Natural                     15            7            8          104%
Continental                         13            7            6           80%
El Paso                             13            8            5           65%
Endeavor                            11            7            4           64%
Cimarex                             14            9            5           59%
Devon                               47           31            16          51%
EOG                                 53           36            17          46%
Apache                              12            9            3           37%
XTO                                 57           43            14          33%
EnCana                              44           33            11          32%
OXY                                 15           12            3           30%
Range                               15           12            3           29%
Southwestern                        21           17            4           26%
Anadarko                            30           24            6           24%
Petrohawk                           19           16            3           22%
Questar                             16           14            2           17%
Williams                            17           15            2           16%
Chesapeake                         108           94            15          16%
Noble                               11            9            1           15%
Samson                              9             8            0           2%
Marathon                            10            9            0           2%
Quicksilver                         5             5            0           0%
Shell                               11           11            0           0%
Ultra                               8             8            (0)         -5%
ExxonMobil                          8             8            (0)         -5%
Newfield                            18           20            (1)         -7%
BP                                  16           17            (1)         -7%
ConocoPhillips                      16           22            (6)        -28%
Weighted Average                                                           27%
Source: The Land Rig Newsletter, Credit Suisse estimates




Insight Onshore                                                                                 5
                                                                             16 April 2010



Exhibit 5: E&P firms operating 10 rigs or more
                            Current     10/10/2008    Change in
    Operator               Rigcount        Peak        rigcount   % Change
    Chesapeake                120          134             (14)     -10%
    EOG                       62            62              0       0%
    XTO                       57            82             (25)     -30%
    Devon                     50            87             (37)     -43%
    EnCana                    47            44              3       7%
    Anadarko                  30            46             (16)     -35%
    SandRidge                 23            33             (10)     -30%
    Newfield                  22            31             (9)      -29%
    Petrohawk                 22            23             (1)      -4%
    Southwestern              22            22              0       0%
    Concho                    20            n/a            n/a      n/a
    Cimarex                   20            32             (12)     -38%
    ConocoPhillips            19            47             (28)     -60%
    Questar                   18            26             (8)      -31%
    OXY                       17            25             (8)      -32%
    Range                     17            17              0       0%
    BP                        16            24             (8)      -33%
    EXCO                      16            n/a            n/a      n/a
    Continental               16            24             (8)      -33%
    Pioneer Natural           15            24             (9)      -38%
    Williams                  14            43             (29)     -67%
    El Paso                   13            23             (10)     -43%
    Endeavor                  13            13              0       0%
    Forest                    11            25             (14)     -56%
    Whiting                   11            n/a            n/a      n/a
    Apache                    11            23             (12)     -52%
    Shell                     11            13             (2)      -15%
    Mewbourne Oil Co.         11            n/a            n/a      n/a
    Samson                    10            26             (16)     -62%
    Talisman                  10            n/a            n/a      n/a
    Average                                                         -30%
Source: The Land Rig Newsletter, Credit Suisse estimates




Insight Onshore                                                                         6
                                                                                                                                                                                                                                         16 April 2010



Contractor Detail
Exhibit 6: Contractor rigcount Q110 vs. Q409 Average
                                                                                                                                                                            Quarterly Change in                           Quarterly %
Contractor                                      Contractor                         Today                             Q110                           Q409                         rigcount                                  Change
Capstar                                         Capstar                              19                                  22                                 13                       9                                       73%
Ensign USA                                      ESI                                  43                                  38                                 26                                 12                              44%
Patterson                                       PTEN                                136                              121                                    84                                 36                              43%
Unit                                            UNT                                  45                                  42                                 31                                 11                              34%
Pioneer                                         PDC                                  31                                  25                                 20                                 5                               26%
Bronco                                          BRNC                                 11                                  12                                 9                                  2                               25%
Precision/GW                                    PDS                                  79                                  71                                 58                                 13                              23%
Helmerich & Payne                               HP                                  135                              130                               107                                     24                              22%
Nabors                                          NBR                                 146                              139                               123                                     16                              13%
Union                                           UDRL                                 21                                  22                                 21                                 1                               3%
Weighted Average                                                                                                                                                                                                               26%

Source: The Land Rig Newsletter, Credit Suisse estimates

Exhibit 7: Historical Contractor Rigcount
               300

               250

               200                                                                                                                                                               PTEN
 Active Rigs




                                                                                                                                                                                                      NBR
               150                                                                                                                                                         HP


               100
                                                                                                                                                                                                                                         GW
                                                                                                                                                                                           UNT
               50
                                                                                                  ESI
                                                                                                                                                                                                                                   PDC
                0
                     Jun-05




                                       Dec-05


                                                      Mar-06


                                                                Jun-06




                                                                                    Dec-06


                                                                                                  Mar-07


                                                                                                           Jun-07




                                                                                                                                        Dec-07


                                                                                                                                                   Mar-08


                                                                                                                                                                  Jun-08




                                                                                                                                                                                      Dec-08


                                                                                                                                                                                                    Mar-09


                                                                                                                                                                                                             Jun-09




                                                                                                                                                                                                                                Dec-09


                                                                                                                                                                                                                                            Mar-10
                              Sep-05




                                                                          Sep-06




                                                                                                                          Sep-07




                                                                                                                                                                            Sep-08




                                                                                                                                                                                                                      Sep-09
                                                                  PTEN              NBR                    HP                      GW                       UNT                 PDC                 ESI


Source: The Land Rig Newsletter, Credit Suisse estimates

State Detail
Exhibit 8: State rigcount declines Q110 vs. Q409
                                                                                                  Cha nge in # % cha nge in
Rigc ount by St ate
                                                               Q1 10               Q4 09                  rigs       # rigs
Okla hom a                                                      1 08                 79                    30         38 %
North Dako ta                                                        75                      57                     19                      33 %
Texas                                                           5 27                  4 13                   11 4                           27 %
Ala ska                                                              11                      9                       2                      26 %
Califor nia                                                          12                      10                      2                      24 %
New Me xi co                                                         43                      36                      7                      21 %
Lou siana                                                       1 43                  1 21                          22                      19 %
Wyom ing                                                             36                      38                     (2)                     -5 %
Weighte d Avera ge                                                                                                                          26 %

Source: The Land Rig Newsletter, Credit Suisse estimates




Insight Onshore                                                                                                                                                                                                                                      7
                                                                                                                                                                                                                                                                                              16 April 2010



Classification Detail
Exhibit 9: Rigcount trends by type


                 2,000




                 1,500                                                                                                          Privates
   Active Rigs




                 1,000
                                                                                                              Mid-Cap Independents

                                                                                                                          Utilities
                                                                                                                                     Superindependents
                  500
                                                                                                                                                  Majors

                                                                                                                                                      Large Caps
                    0
                                                    Mar-08




                                                                      May-08




                                                                                                                                        Nov-08




                                                                                                                                                                              Mar-09




                                                                                                                                                                                                  May-09




                                                                                                                                                                                                                                                         Nov-09




                                                                                                                                                                                                                                                                                                Mar-10
                         Dec-07


                                  Jan-08


                                           Feb-08




                                                             Apr-08




                                                                               Jun-08


                                                                                        Jul-08


                                                                                                     Aug-08


                                                                                                                 Sep-08


                                                                                                                            Oct-08




                                                                                                                                                   Dec-08


                                                                                                                                                            Jan-09


                                                                                                                                                                     Feb-09




                                                                                                                                                                                         Apr-09




                                                                                                                                                                                                           Jun-09


                                                                                                                                                                                                                    Jul-09


                                                                                                                                                                                                                              Aug-09


                                                                                                                                                                                                                                       Sep-09


                                                                                                                                                                                                                                                Oct-09




                                                                                                                                                                                                                                                                  Dec-09


                                                                                                                                                                                                                                                                            Jan-10


                                                                                                                                                                                                                                                                                     Feb-10
                                                               Large Cap       Majors            Superindependents              Utilities        Mid-Cap Independents         Privates


Source: The Land Rig Newsletter, Credit Suisse estimates



Exhibit 10: Rigcount trends by type - % of overall
                                    Q108         Q208                                                                                            Q308                    Q408                     Q109                       Q209               Q309                       Q409                     Q110
Large Cap                            22%          22%                                                                                             21%                     21%                      26%                        28%                25%                        31%                      34%
Majors                                 7%          6%                                                                                              6%                      7%                       9%                         9%                 7%                         7%                       5%
Super-Independents                     8%          8%                                                                                              8%                      9%                       8%                         6%                 6%                         6%                       7%
Mid-Cap Independents                 17%          18%                                                                                             18%                     17%                      16%                        17%                15%                        14%                      16%
Utilities                              5%          5%                                                                                              6%                      6%                       6%                         5%                 5%                         2%                       2%
Privates                             41%          42%                                                                                             41%                     40%                      35%                        34%                42%                        40%                      36%
Source: The Land Rig Newsletter, Credit Suisse estimates




Insight Onshore                                                                                                                                                                                                                                                                                            8
                                                                                                                           Rigcount                                                                                                                                                                                           Rigcount                                                                                                                                                                                       Rigcount                                                                                                                                                                                Rigcount




                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         100
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     150
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 200
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             250
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          300
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      350
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  400
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              450




                                                                                      150
                                                                                                      250
                                                                                                                          350
                                                                                                                                        450
                                                                                                                                                      550
                                                                                                                                                                       650
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             600
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         800
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     1,000
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   1,200
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 1,400
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               1,600
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              1,800
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             2,000
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            2,200




                                                                                                                                                                                                                                                                                           500
                                                                                                                                                                                                                                                                                                          700
                                                                                                                                                                                                                                                                                                                         900
                                                                                                                                                                                                                                                                                                                                            1,100
                                                                                                                                                                                                                                                                                                                                                             1,300
                                                                                                                                                                                                                                                                                                                                                                            1,500
                                                                                                                                                                                                                                                                                                                                                                                          1,700
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  US Land
                                                                             Jun-05                                                                                                                                                                                                                                                                                                                                                                                             Jun-05                                                                                                                                                                              Jun-05
                                                                                                                                                                                                                                                                                 Jun-05
                                                                             Sep-05




Insight Onshore
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                Sep-05                                                                                                                                                                              Sep-05
                                                                                                                                                                                                                                                                                 Sep-05
                                                                             Dec-05                                                                                                                                                                                                                                                                                                                                                                                             Dec-05                                                                                                                                                                              Dec-05
                                                                                                                                                                                                                                                                                 Dec-05
                                                                             Mar-06                                                                                                                                                                                                                                                                                                                                                                                             Mar-06                                                                                                                                                                              Mar-06
                                                                                                                                                                                                                                                                                 Mar-06
                                                                             Jun-06                                                                                                                                                                                                                                                                                                                                                                                             Jun-06                                                                                                                                                                              Jun-06
                                                                                                                                                                                                                                                                                 Jun-06
                                                                             Sep-06                                                                                                                                                                                                                                                                                                                                                                                             Sep-06                                                                                                                                                                              Sep-06
                                                                                                                                                                                                                                                                                 Sep-06
                                                                             Dec-06                                                                                                                                                                                              Dec-06                                                                                                                                                                                         Dec-06                                                                                                                                                                              Dec-06
                                                                             Mar-07                                                                                                                                                                                                                                                                                                                                                                                             Mar-07




                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          Exhibit 13: US Oil Rigcount
                                                                                                                                                                                                                                                                                 Mar-07                                                                                                                                                                                                                                                                                                                                                                             Mar-07
                                                                             Jun-07                                                                                                                                                                                                                                                                                                                                                                                             Jun-07
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            Exhibit 11: US Land Rigcount




                                                                                                                                                                                                                                                                                 Jun-07                                                                                                                                                                                                                                                                                                                                                                             Jun-07
                                                                             Sep-07                                                                                                                                                                                              Sep-07                                                                                                                                                                                         Sep-07                                                                                                                                                                              Sep-07




                                                                                                                                                                                                                                                                                                                                                                                                                                      Exhibit 15: US Land Gas Rigcount
                                                                             Dec-07                                                                                                                                                                                              Dec-07                                                                                                                                                                                         Dec-07                                                                                                                                                                              Dec-07
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                U.S. Land Rigcount




                                                                             Mar-08                                                                                                                                                                                                                                                                                                                                                                                             Mar-08                                                                                                                                                                              Mar-08




                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           U.S. Land Oil Rigcount
                                                                                                                                                                                                                                                                                 Mar-08




                                                                                                                                                                                                                                                                                                                                                                                                         U.S. Land Gas Rigcount
                                                                             Jun-08                                                                                                                                                                                              Jun-08                                                                                                                                                                                         Jun-08                                                                                                                                                                              Jun-08




                                                                                                                                                                                         U.S. Land Horizontal Rigcount
                                                                                                                                                                                                                                Exhibit 17: US Land Horizontal Rigcount
                                                                             Sep-08                                                                                                                                                                                              Sep-08                                                                                                                                                                                         Sep-08                                                                                                                                                                              Sep-08
                                                                             Dec-08                                                                                                                                                                                              Dec-08                                                                                                                                                                                         Dec-08                                                                                                                                                                              Dec-08
                                                                             Mar-09                                                                                                                                                                                              Mar-09                                                                                                                                                                                         Mar-09                                                                                                                                                                              Mar-09




                  Source: The Land Rig Newsletter, Credit Suisse estimates
                                                                             Jun-09                                                                                                                                                                                              Jun-09                                                                                                                                                                                         Jun-09                                                                                                                                                                              Jun-09
                                                                             Sep-09                                                                                                                                                                                              Sep-09                                                                                                                                                                                         Sep-09                                                                                                                                                                              Sep-09
                                                                             Dec-09                                                                                                                                                                                              Dec-09                                                                                                                                                                                         Dec-09                                                                                                                                                                              Dec-09
                                                                             Mar-10                                                                                                                                                                                              Mar-10                                                                                                                                                                                         Mar-10                                                                                                                                                                              Mar-10




                                                                                                                            Footage                                                                                                                                                                                           Footage                                                                                                                                                                                        Footage                                                                                                                                                                                Footage




                                                                                      1,000,000
                                                                                                  2,000,000
                                                                                                              3,000,000
                                                                                                                            4,000,000
                                                                                                                                         5,000,000
                                                                                                                                                     6,000,000
                                                                                                                                                                 7,000,000
                                                                                                                                                                             8,000,000
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         1,000,000
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     1,500,000
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 2,000,000
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              2,500,000
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          3,000,000
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      3,500,000
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  4,000,000
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              4,500,000




                                                                                                                                                                                                                                                                                          5,000,000
                                                                                                                                                                                                                                                                                                      7,000,000
                                                                                                                                                                                                                                                                                                                  9,000,000
                                                                                                                                                                                                                                                                                                                               11,000,000
                                                                                                                                                                                                                                                                                                                                                13,000,000
                                                                                                                                                                                                                                                                                                                                                               15,000,000
                                                                                                                                                                                                                                                                                                                                                                            17,000,000
                                                                                                                                                                                                                                                                                                                                                                                         19,000,000
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      10,000,000
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    12,000,000
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  14,000,000
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 16,000,000
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                18,000,000
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               20,000,000




                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             6,000,000
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         8,000,000




                                                                             Jun-05                                                                                                                                                                                                                                                                                                                                                                                             Jun-05
                                                                                                                                                                                                                                                                                 Jun-05                                                                                                                                                                                                                                                                                                                                                                             Jun-05
                                                                             Sep-05                                                                                                                                                                                                                                                                                                                                                                                             Sep-05
                                                                                                                                                                                                                                                                                 Sep-05                                                                                                                                                                                                                                                                                                                                                                             Sep-05
                                                                             Dec-05                                                                                                                                                                                                                                                                                                                                                                                             Dec-05
                                                                                                                                                                                                                                                                                 Dec-05                                                                                                                                                                                                                                                                                                                                                                             Dec-05
                                                                             Mar-06                                                                                                                                                                                                                                                                                                                                                                                             Mar-06
                                                                                                                                                                                                                                                                                 Mar-06                                                                                                                                                                                                                                                                                                                                                                             Mar-06
                                                                             Jun-06                                                                                                                                                                                                                                                                                                                                                                                             Jun-06
                                                                                                                                                                                                                                                                                 Jun-06                                                                                                                                                                                                                                                                                                                                                                             Jun-06
                                                                             Sep-06                                                                                                                                                                                                                                                                                                                                                                                             Sep-06
                                                                                                                                                                                                                                                                                 Sep-06                                                                                                                                                                                                                                                                                                                                                                             Sep-06
                                                                             Dec-06                                                                                                                                                                                                                                                                                                                                                                                             Dec-06                                                                                                                                                                              Dec-06
                                                                                                                                                                                                                                                                                 Dec-06
                                                                             Mar-07                                                                                                                                                                                                                                                                                                                                                                                             Mar-07                                                                                                                                                                              Mar-07
                                                                                                                                                                                                                                                                                 Mar-07
                                                                             Jun-07                                                                                                                                                                                                                                                                                                                                                                                             Jun-07                                                                                                                                                                              Jun-07
                                                                                                                                                                                                                                                                                 Jun-07
                                                                             Sep-07                                                                                                                                                                                              Sep-07                                                                                                                                                                                         Sep-07                                                                                                                                                                              Sep-07
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            Exhibit 12: US Land Footage Drilled




                                                                             Dec-07                                                                                                                                                                                              Dec-07                                                                                                                                                                                         Dec-07                                                                                                                                                                              Dec-07
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                U.S. Land Footage Drilled




                                                                             Mar-08                                                                                                                                                                                              Mar-08                                                                                                                                                                                         Mar-08                                                                                                                                                                              Mar-08
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          Exhibit 14: US Land Oil Footage Drilled
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          U.S. Land Oil Footage Drilled




                                                                                                                                                                                                                                                                                                                                                                                                      U.S. Land Gas Footage Drilled
                                                                                                                                                                                                                                                                                                                                                                                                                                      Exhibit 16: US Land Gas Footage Drilled




                                                                             Jun-08                                                                                                                                                                                              Jun-08                                                                                                                                                                                         Jun-08                                                                                                                                                                              Jun-08




                                                                                                                                                                                         U.S. Land Horizontal Footage Drilled
                                                                             Sep-08                                                                                                                                                                                              Sep-08                                                                                                                                                                                         Sep-08                                                                                                                                                                              Sep-08
                                                                             Dec-08                                                                                                                                                                                              Dec-08                                                                                                                                                                                         Dec-08                                                                                                                                                                              Dec-08




                                                                                                                                                                                                                                Exhibit 18: US Land Horizontal Footage Drilled
                                                                             Mar-09                                                                                                                                                                                              Mar-09                                                                                                                                                                                         Mar-09                                                                                                                                                                              Mar-09
                                                                             Jun-09                                                                                                                                                                                              Jun-09                                                                                                                                                                                         Jun-09                                                                                                                                                                              Jun-09
                                                                             Sep-09                                                                                                                                                                                              Sep-09                                                                                                                                                                                         Sep-09                                                                                                                                                                              Sep-09
                                                                             Dec-09                                                                                                                                                                                              Dec-09                                                                                                                                                                                         Dec-09                                                                                                                                                                              Dec-09
                                                                             Mar-10                                                                                                                                                                                              Mar-10                                                                                                                                                                                         Mar-10                                                                                                                                                                              Mar-10




9
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            16 April 2010
                                                                                                                      Rigcount                                                                                                                                                                                    Rigcount                                                                                                                                                                Rigcount                                                                                                                                                      Rigcount
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       Texas




                                                                                                                                                                                                                                                                              150
                                                                                                                                                                                                                                                                                           250
                                                                                                                                                                                                                                                                                                          350
                                                                                                                                                                                                                                                                                                                          450
                                                                                                                                                                                                                                                                                                                                            550
                                                                                                                                                                                                                                                                                                                                                          650
                                                                                                                                                                                                                                                                                                                                                                       750
                                                                                                                                                                                                                                                                                                                                                                                                                                                                0
                                                                                                                                                                                                                                                                                                                                                                                                                                                                          50
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          100
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      150
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 200
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               250




                                                                                      75
                                                                                                   125
                                                                                                                 175
                                                                                                                                 225
                                                                                                                                               275
                                                                                                                                                                 325
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  250
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               350
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             450
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            550
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          650
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          750
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       850
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    950
                                                                                                                                                                                                                                                                     Jun-05                                                                                                                                                                            Jun-05
                                                                             Jun-05                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      Jun-05
                                                                                                                                                                                                                                                                     Sep-05                                                                                                                                                                            Sep-05
                                                                             Sep-05




Insight Onshore
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         Sep-05
                                                                             Dec-05                                                                                                                                                                                  Dec-05                                                                                                                                                                            Dec-05
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         Dec-05
                                                                             Mar-06                                                                                                                                                                                  Mar-06                                                                                                                                                                            Mar-06                                                                                                                                            Mar-06
                                                                             Jun-06                                                                                                                                                                                  Jun-06                                                                                                                                                                            Jun-06                                                                                                                                            Jun-06
                                                                             Sep-06                                                                                                                                                                                  Sep-06                                                                                                                                                                            Sep-06                                                                                                                                            Sep-06
                                                                             Dec-06                                                                                                                                                                                  Dec-06                                                                                                                                                                            Dec-06                                                                                                                                            Dec-06
                                                                             Mar-07                                                                                                                                                                                  Mar-07                                                                                                                                                                            Mar-07                                                                                                                                            Mar-07
                                                                             Jun-07                                                                                                                                                                                  Jun-07                                                                                                                                                                            Jun-07                                                                                                                                            Jun-07
                                                                                                                                                                                                                                                                     Sep-07                                                                                                                                                                            Sep-07




                                                                                                                                                                                                                                                                                                                                                                                                               Exhibit 23: Texas Gas Rigcount
                                                                             Sep-07                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      Sep-07
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              Exhibit 19: Texas Land Rigcount




                                                                             Dec-07                                                                                                                                                                                  Dec-07                                                                                                                                                                            Dec-07                                                                                                                                            Dec-07




                                                                                                                                                                                                                                                                                                                                                                                   Texas Gas Rigcount
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 Exhibit 21: Texas Land Oil Rigcount
                                                                                                                                                                                                                                                                     Mar-08                                                                                                                                                                            Mar-08
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 Texas Land Rigcount




                                                                             Mar-08                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      Mar-08




                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     Texas Land Oil Rigcount




                                                                                                                                                                                                                      Exhibit 25: Texas Horizontal Rigcount
                                                                                                                                                                                    Texas Horizontal Rigcount
                                                                             Jun-08                                                                                                                                                                                  Jun-08                                                                                                                                                                            Jun-08                                                                                                                                            Jun-08
                                                                             Sep-08                                                                                                                                                                                  Sep-08                                                                                                                                                                            Sep-08                                                                                                                                            Sep-08
                                                                             Dec-08                                                                                                                                                                                  Dec-08                                                                                                                                                                            Dec-08                                                                                                                                            Dec-08
                                                                             Mar-09                                                                                                                                                                                  Mar-09                                                                                                                                                                            Mar-09                                                                                                                                            Mar-09
                                                                                                                                                                                                                                                                     Jun-09




                  Source: The Land Rig Newsletter, Credit Suisse estimates
                                                                             Jun-09                                                                                                                                                                                                                                                                                                                                                                    Jun-09                                                                                                                                            Jun-09
                                                                             Sep-09                                                                                                                                                                                  Sep-09                                                                                                                                                                            Sep-09                                                                                                                                            Sep-09
                                                                             Dec-09                                                                                                                                                                                  Dec-09                                                                                                                                                                            Dec-09                                                                                                                                            Dec-09
                                                                             Mar-10                                                                                                                                                                                  Mar-10                                                                                                                                                                            Mar-10                                                                                                                                            Mar-10




                                                                                                                          Footage                                                                                                                                                                                 Footage                                                                                                                                                                   Footage                                                                                                                                                        Footage




                                                                                      1,000,000
                                                                                                  1,500,000
                                                                                                              2,000,000
                                                                                                                            2,500,000
                                                                                                                                        3,000,000
                                                                                                                                                     3,500,000
                                                                                                                                                                       4,000,000
                                                                                                                                                                                                                                                                                                                                                                                                                                                                400,000
                                                                                                                                                                                                                                                                                                                                                                                                                                                                600,000
                                                                                                                                                                                                                                                                                                                                                                                                                                                                           800,000
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     1,000,000
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 1,200,000
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 1,400,000
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             1,600,000
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             1,800,000
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         2,000,000




                                                                                                                                                                                                                                                                              2,500,000
                                                                                                                                                                                                                                                                                          3,500,000
                                                                                                                                                                                                                                                                                                      4,500,000
                                                                                                                                                                                                                                                                                                                   5,500,000
                                                                                                                                                                                                                                                                                                                                6,500,000
                                                                                                                                                                                                                                                                                                                                              7,500,000
                                                                                                                                                                                                                                                                                                                                                           8,500,000
                                                                                                                                                                                                                                                                                                                                                                       9,500,000
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  3,000,000
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              4,000,000
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          5,000,000
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      6,000,000
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  7,000,000
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              8,000,000
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           9,000,000
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       10,000,000
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    11,000,000




                                                                             Jun-05                                                                                                                                                                                  Jun-05                                                                                                                                                                            Jun-05                                                                                                                                            Jun-05
                                                                             Sep-05                                                                                                                                                                                  Sep-05                                                                                                                                                                            Sep-05                                                                                                                                            Sep-05
                                                                             Dec-05                                                                                                                                                                                  Dec-05                                                                                                                                                                            Dec-05                                                                                                                                            Dec-05
                                                                             Mar-06                                                                                                                                                                                  Mar-06                                                                                                                                                                            Mar-06                                                                                                                                            Mar-06
                                                                             Jun-06                                                                                                                                                                                  Jun-06                                                                                                                                                                            Jun-06                                                                                                                                            Jun-06
                                                                             Sep-06                                                                                                                                                                                  Sep-06                                                                                                                                                                            Sep-06                                                                                                                                            Sep-06
                                                                             Dec-06                                                                                                                                                                                  Dec-06                                                                                                                                                                            Dec-06                                                                                                                                            Dec-06
                                                                             Mar-07                                                                                                                                                                                  Mar-07                                                                                                                                                                            Mar-07                                                                                                                                            Mar-07
                                                                             Jun-07                                                                                                                                                                                  Jun-07                                                                                                                                                                            Jun-07                                                                                                                                            Jun-07
                                                                             Sep-07                                                                                                                                                                                  Sep-07                                                                                                                                                                            Sep-07                                                                                                                                            Sep-07
                                                                             Dec-07                                                                                                                                                                                  Dec-07                                                                                                                                                                            Dec-07                                                                                                                                            Dec-07
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 Exhibit 22: Texas Oil Footage Drilled




                                                                                                                                                                                                                                                                                                                                                                                                               Exhibit 24: Texas Gas Footage Drilled
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     Texas Oil Footage Drilled




                                                                                                                                                                                                                                                                     Mar-08                                                                                                                                                                            Mar-08
                                                                                                                                                                                                                                                                                                                                                                                   Texas Gas Footage Drilled




                                                                             Mar-08
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 Texas Land Footage Drilled




                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         Mar-08
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              Exhibit 20: Texas Land Footage Drilled




                                                                                                                                                                                                                                                                     Jun-08                                                                                                                                                                            Jun-08




                                                                                                                                                                                   Texas Horizontal Footage Drilled
                                                                             Jun-08                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      Jun-08
                                                                             Sep-08                                                                                                                                                                                  Sep-08                                                                                                                                                                            Sep-08                                                                                                                                            Sep-08




                                                                                                                                                                                                                      Exhibit 26: Texas Horizontal Footage Drilled
                                                                             Dec-08                                                                                                                                                                                  Dec-08                                                                                                                                                                            Dec-08                                                                                                                                            Dec-08
                                                                             Mar-09                                                                                                                                                                                  Mar-09                                                                                                                                                                            Mar-09                                                                                                                                            Mar-09
                                                                             Jun-09                                                                                                                                                                                  Jun-09                                                                                                                                                                            Jun-09                                                                                                                                            Jun-09
                                                                             Sep-09                                                                                                                                                                                  Sep-09                                                                                                                                                                            Sep-09                                                                                                                                            Sep-09
                                                                             Dec-09                                                                                                                                                                                  Dec-09                                                                                                                                                                            Dec-09                                                                                                                                            Dec-09
                                                                             Mar-10                                                                                                                                                                                  Mar-10                                                                                                                                                                            Mar-10                                                                                                                                            Mar-10




10
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               16 April 2010
                                                                                                    Rigcount                                                                                                                                                                              Rigcount                                                                                                                                                            Rigcount                                                                                                                                                       Rigcount




                                                                                                                                                                                                                                                                                                                                                                                                                                                 0
                                                                                                                                                                                                                                                                                                                                                                                                                                                     4
                                                                                                                                                                                                                                                                                                                                                                                                                                                          8
                                                                                                                                                                                                                                                                                                                                                                                                                                                              12
                                                                                                                                                                                                                                                                                                                                                                                                                                                                        16
                                                                                                                                                                                                                                                                                                                                                                                                                                                                               20
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    24
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              28




                                                                                                                                                                                                                                                        0
                                                                                                                                                                                                                                                       20
                                                                                                                                                                                                                                                       40
                                                                                                                                                                                                                                                       60
                                                                                                                                                                                                                                                       80
                                                                                                                                                                                                                                                      100
                                                                                                                                                                                                                                                      120
                                                                                                                                                                                                                                                      140
                                                                                                                                                                                                                                                      160
                                                                                                                                                                                                                                                      180
                                                                                                                                                                                                                                                      200




                                                                                      0
                                                                                               25
                                                                                                              50
                                                                                                                             75
                                                                                                                                        100
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            50
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      70
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                90
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            110
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        130
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     150
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  170
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               190
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            210
                                                                             Jun-05                                                                                                                                                          Jun-05                                                                                                                                                                                     Jun-05
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   Jun-05
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              Oklahoma

                                                                             Sep-05                                                                                                                                                          Sep-05                                                                                                                                                                                     Sep-05
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   Sep-05




Insight Onshore
                                                                             Dec-05                                                                                                                                                          Dec-05                                                                                                                                                                                     Dec-05
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   Dec-05
                                                                             Mar-06                                                                                                                                                          Mar-06                                                                                                                                                                                     Mar-06
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   Mar-06
                                                                             Jun-06                                                                                                                                                          Jun-06                                                                                                                                                                                     Jun-06
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   Jun-06
                                                                             Sep-06                                                                                                                                                          Sep-06                                                                                                                                                                                     Sep-06
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   Sep-06
                                                                             Dec-06                                                                                                                                                          Dec-06                                                                                                                                                                                     Dec-06
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   Dec-06
                                                                             Mar-07                                                                                                                                                          Mar-07                                                                                                                                                                                     Mar-07
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   Mar-07
                                                                             Jun-07                                                                                                                                                          Jun-07                                                                                                                                                                                     Jun-07
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   Jun-07
                                                                             Sep-07                                                                                                                                                          Sep-07                                                                                                                                                                                     Sep-07                                                                                                                                     Sep-07
                                                                             Dec-07                                                                                                                                                          Dec-07                                                                                                                                                                                     Dec-07                                                                                                                                     Dec-07




                                                                                                                                                                                                                                                                                                                                                                                             Exhibit 31: Oklahoma Gas Rigcount
                                                                             Mar-08                                                                                                                                                          Mar-08                                                                                                                                                                                     Mar-08                                                                                                                                     Mar-08
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  Exhibit 27: Oklahoma Land Rigcount




                                                                                                                                                                                                                                                                                                                                                              Oklahoma Gas Rigcount
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   Oklahoma Land Rigcount




                                                                             Jun-08                                                                                                                                                          Jun-08                                                                                                                                                                                     Jun-08                                                                                                                                     Jun-08




                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         Oklahoma Land Oil Rigcount




                                                                                                                                                    Oklahoma Horizontal Rigcount
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        Exhibit 29: Oklahoma Land Oil Rigcount
                                                                             Sep-08                                                                                                                                                          Sep-08                                                                                                                                                                                     Sep-08                                                                                                                                     Sep-08




                                                                                                                                                                                           Exhibit 33: Oklahoma Horizontal Rigcount
                                                                             Dec-08                                                                                                                                                          Dec-08                                                                                                                                                                                     Dec-08                                                                                                                                     Dec-08
                                                                             Mar-09                                                                                                                                                          Mar-09                                                                                                                                                                                     Mar-09                                                                                                                                     Mar-09
                                                                                                                                                                                                                                             Jun-09




                  Source: The Land Rig Newsletter, Credit Suisse estimates
                                                                             Jun-09                                                                                                                                                                                                                                                                                                                                                     Jun-09                                                                                                                                     Jun-09
                                                                             Sep-09                                                                                                                                                          Sep-09                                                                                                                                                                                     Sep-09                                                                                                                                     Sep-09
                                                                             Dec-09                                                                                                                                                          Dec-09                                                                                                                                                                                     Dec-09                                                                                                                                     Dec-09
                                                                             Mar-10                                                                                                                                                          Mar-10                                                                                                                                                                                     Mar-10                                                                                                                                     Mar-10




                                                                                                     Footage                                                                                                                                                                                  Footage                                                                                                                                                          Footage                                                                                                                                                         Footage


                                                                                                                                                                                                                                                                                                                                                                                                                                                 0
                                                                                                                                                                                                                                                                                                                                                                                                                                                     50,000
                                                                                                                                                                                                                                                                                                                                                                                                                                                              100,000
                                                                                                                                                                                                                                                                                                                                                                                                                                                                         150,000
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    200,000
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               250,000




                                                                                      0
                                                                                          200,000
                                                                                                    400,000
                                                                                                                   600,000
                                                                                                                              800,000
                                                                                                                                        1,000,000
                                                                                                                                                                                                                                                      600,000
                                                                                                                                                                                                                                                                800,000
                                                                                                                                                                                                                                                                          1,000,000
                                                                                                                                                                                                                                                                                      1,200,000
                                                                                                                                                                                                                                                                                                  1,400,000
                                                                                                                                                                                                                                                                                                              1,600,000
                                                                                                                                                                                                                                                                                                                          1,800,000
                                                                                                                                                                                                                                                                                                                                      2,000,000
                                                                                                                                                                                                                                                                                                                                                  2,200,000
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            600,000
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      850,000
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                1,100,000
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            1,350,000
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         1,600,000
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      1,850,000
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   2,100,000
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                2,350,000




                                                                                                                                                                                                                                                                                                                                                                                                                                        Jun-05
                                                                             Jun-05                                                                                                                                                          Jun-05                                                                                                                                                                                     Sep-05                                                                                                                                     Jun-05
                                                                             Sep-05                                                                                                                                                          Sep-05                                                                                                                                                                                     Dec-05                                                                                                                                     Sep-05
                                                                             Dec-05                                                                                                                                                          Dec-05                                                                                                                                                                                                                                                                                                                                Dec-05
                                                                                                                                                                                                                                                                                                                                                                                                                                        Mar-06
                                                                             Mar-06                                                                                                                                                          Mar-06                                                                                                                                                                                                                                                                                                                                Mar-06
                                                                                                                                                                                                                                                                                                                                                                                                                                        Jun-06
                                                                             Jun-06                                                                                                                                                          Jun-06                                                                                                                                                                                                                                                                                                                                Jun-06
                                                                                                                                                                                                                                                                                                                                                                                                                                        Sep-06
                                                                             Sep-06                                                                                                                                                          Sep-06                                                                                                                                                                                                                                                                                                                                Sep-06
                                                                             Dec-06                                                                                                                                                                                                                                                                                                                                                     Dec-06
                                                                                                                                                                                                                                             Dec-06                                                                                                                                                                                                                                                                                                                                Dec-06
                                                                             Mar-07                                                                                                                                                                                                                                                                                                                                                     Mar-07
                                                                                                                                                                                                                                             Mar-07                                                                                                                                                                                                                                                                                                                                Mar-07
                                                                             Jun-07                                                                                                                                                                                                                                                                                                                                                     Jun-07
                                                                                                                                                                                                                                             Jun-07                                                                                                                                                                                                                                                                                                                                Jun-07
                                                                             Sep-07                                                                                                                                                                                                                                                                                                                                                     Sep-07
                                                                                                                                                                                                                                             Sep-07                                                                                                                                                                                                                                                                                                                                Sep-07
                                                                             Dec-07                                                                                                                                                                                                                                                                                                                                                     Dec-07
                                                                                                                                                                                                                                             Dec-07                                                                                                                                                                                                                                                                                                                                Dec-07
                                                                             Mar-08                                                                                                                                                                                                                                                                                                                                                     Mar-08                                                                                                                                     Mar-08
                                                                                                                                                                                                                                             Mar-08
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         Oklahoma Oil Footage Drilled




                                                                                                                                                                                                                                                                                                                                                              Oklahoma Gas Footage Drilled




                                                                                                                                                                                                                                                                                                                                                                                                                                        Jun-08
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  Oklahoma Land Footage Drilled




                                                                             Jun-08                                                                                                                                                          Jun-08                                                                                                                                                                                                                                                                                                                                Jun-08
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        Exhibit 30: Oklahoma Oil Footage Drilled




                                                                                                                                                     Oklahoma Horizontal Footage Drilled
                                                                                                                                                                                                                                                                                                                                                                                                                                        Sep-08
                                                                                                                                                                                                                                                                                                                                                                                             Exhibit 32: Oklahoma Gas Footage Drilled




                                                                             Sep-08                                                                                                                                                          Sep-08                                                                                                                                                                                                                                                                                                                                Sep-08
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  Exhibit 28: Oklahoma Land Footage Drilled




                                                                             Dec-08                                                                                                                                                                                                                                                                                                                                                     Dec-08                                                                                                                                     Dec-08
                                                                                                                                                                                                                                             Dec-08
                                                                             Mar-09                                                                                                                                                                                                                                                                                                                                                     Mar-09                                                                                                                                     Mar-09
                                                                                                                                                                                                                                             Mar-09



                                                                                                                                                                                           Exhibit 34: Oklahoma Horizontal Footage Drilled
                                                                             Jun-09                                                                                                                                                                                                                                                                                                                                                     Jun-09                                                                                                                                     Jun-09
                                                                                                                                                                                                                                             Jun-09
                                                                             Sep-09                                                                                                                                                                                                                                                                                                                                                     Sep-09                                                                                                                                     Sep-09
                                                                                                                                                                                                                                             Sep-09
                                                                             Dec-09                                                                                                                                                                                                                                                                                                                                                     Dec-09                                                                                                                                     Dec-09
                                                                                                                                                                                                                                             Dec-09
                                                                             Mar-10                                                                                                                                                                                                                                                                                                                                                     Mar-10                                                                                                                                     Mar-10
                                                                                                                                                                                                                                             Mar-10




11
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         16 April 2010
                                                                                                                 Rigcount                                                                                                                                                                                            Rigcount                                                                                                                                           Rigcount                                                                                                                                      Rigcount




                                                                                                                                                                                                                                                                                                                                                                                                                                                           0
                                                                                                                                                                                                                                                                                                                                                                                                                                                               4
                                                                                                                                                                                                                                                                                                                                                                                                                                                                         8
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   12
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             16
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           60
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        80
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       100
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         120
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       140
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    160




                                                                                                                                                                                                                                                                                       60
                                                                                                                                                                                                                                                                                       70
                                                                                                                                                                                                                                                                                       80
                                                                                                                                                                                                                                                                                       90
                                                                                                                                                                                                                                                                                      100
                                                                                                                                                                                                                                                                                      110
                                                                                                                                                                                                                                                                                      120
                                                                                                                                                                                                                                                                                      130
                                                                                                                                                                                                                                                                                      140
                                                                                                                                                                                                                                                                                      150
                                                                                                                                                                                                                                                                                      160




                                                                                        0
                                                                                       10
                                                                                       20
                                                                                       30
                                                                                       40
                                                                                       50
                                                                                       60
                                                                                       70
                                                                                       80
                                                                                       90
                                                                                      100
                                                                                      110
                                                                                      120
                                                                                      130
                                                                             Jun-05                                                                                                                                                                                                                                                                                                                                                               Jun-05                                                                                                                          Jun-05
                                                                                                                                                                                                                                                                            Jun-05
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              Louisiana

                                                                                                                                                                                                                                                                                                                                                                                                                                                  Sep-05                                                                                                                          Sep-05
                                                                             Sep-05                                                                                                                                                                                         Sep-05




Insight Onshore
                                                                             Dec-05                                                                                                                                                                                                                                                                                                                                                               Dec-05                                                                                                                          Dec-05
                                                                                                                                                                                                                                                                            Dec-05
                                                                             Mar-06                                                                                                                                                                                                                                                                                                                                                               Mar-06                                                                                                                          Mar-06
                                                                                                                                                                                                                                                                            Mar-06
                                                                             Jun-06                                                                                                                                                                                         Jun-06                                                                                                                                                                Jun-06                                                                                                                          Jun-06
                                                                             Sep-06                                                                                                                                                                                         Sep-06                                                                                                                                                                Sep-06                                                                                                                          Sep-06
                                                                             Dec-06                                                                                                                                                                                         Dec-06                                                                                                                                                                Dec-06                                                                                                                          Dec-06
                                                                             Mar-07                                                                                                                                                                                         Mar-07                                                                                                                                                                Mar-07                                                                                                                          Mar-07
                                                                             Jun-07                                                                                                                                                                                         Jun-07                                                                                                                                                                Jun-07                                                                                                                          Jun-07
                                                                             Sep-07                                                                                                                                                                                         Sep-07                                                                                                                                                                Sep-07                                                                                                                          Sep-07
                                                                             Dec-07                                                                                                                                                                                         Dec-07                                                                                                                                                                Dec-07                                                                                                                          Dec-07




                                                                                                                                                                                                                                                                                                                                                                                                      Exhibit 39: Louisiana Gas Rigcount
                                                                             Mar-08                                                                                                                                                                                         Mar-08                                                                                                                                                                Mar-08
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 Exhibit 35: Louisiana Land Rigcount




                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  Mar-08




                                                                                                                                                                                                                                                                                                                                                                       Louisiana Gas Rigcount
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 Louisiana Land Rigcount




                                                                             Jun-08                                                                                                                                                                                         Jun-08                                                                                                                                                                Jun-08                                                                                                                          Jun-08




                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       Louisiana Land Oil Rigcount
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      Exhibit 37: Louisiana Land Oil Rigcount




                                                                                                                                                                                  Louisiana Horizontal Rigcount
                                                                             Sep-08                                                                                                                                                                                         Sep-08                                                                                                                                                                Sep-08                                                                                                                          Sep-08




                                                                                                                                                                                                                         Exhibit 41: Louisiana Horizontal Rigcount
                                                                             Dec-08                                                                                                                                                                                         Dec-08                                                                                                                                                                Dec-08                                                                                                                          Dec-08
                                                                             Mar-09                                                                                                                                                                                         Mar-09                                                                                                                                                                Mar-09                                                                                                                          Mar-09
                                                                                                                                                                                                                                                                            Jun-09




                  Source: The Land Rig Newsletter, Credit Suisse estimates
                                                                             Jun-09                                                                                                                                                                                                                                                                                                                                                               Jun-09                                                                                                                          Jun-09
                                                                             Sep-09                                                                                                                                                                                         Sep-09                                                                                                                                                                Sep-09                                                                                                                          Sep-09
                                                                             Dec-09                                                                                                                                                                                         Dec-09                                                                                                                                                                Dec-09                                                                                                                          Dec-09
                                                                             Mar-10                                                                                                                                                                                         Mar-10                                                                                                                                                                Mar-10                                                                                                                          Mar-10




                                                                                                                 Footage                                                                                                                                                                                             Footage                                                                                                                                            Footage                                                                                                                                         Footage



                                                                                                                                                                                                                                                                                                                                                                                                                                                           0
                                                                                                                                                                                                                                                                                                                                                                                                                                                               50,000
                                                                                                                                                                                                                                                                                                                                                                                                                                                                         100,000
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   150,000
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             200,000




                                                                                      0
                                                                                          200,000
                                                                                                    400,000
                                                                                                              600,000
                                                                                                                        800,000
                                                                                                                                  1,000,000
                                                                                                                                              1,200,000
                                                                                                                                                          1,400,000
                                                                                                                                                                      1,600,000
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           800,000
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     1,000,000
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 1,200,000
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             1,400,000
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           1,600,000
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        1,800,000
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    2,000,000




                                                                                                                                                                                                                                                                                     700,000
                                                                                                                                                                                                                                                                                               900,000
                                                                                                                                                                                                                                                                                                         1,100,000
                                                                                                                                                                                                                                                                                                                      1,300,000
                                                                                                                                                                                                                                                                                                                                  1,500,000
                                                                                                                                                                                                                                                                                                                                              1,700,000
                                                                                                                                                                                                                                                                                                                                                          1,900,000
                                                                                                                                                                                                                                                                                                                                                                                                                                                  Jun-05
                                                                             Jun-05                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               Jun-05
                                                                                                                                                                                                                                                                            Jun-05                                                                                                                                                                Sep-05
                                                                             Sep-05                                                                                                                                                                                         Sep-05                                                                                                                                                                                                                                                                                                Sep-05
                                                                                                                                                                                                                                                                                                                                                                                                                                                  Dec-05
                                                                             Dec-05                                                                                                                                                                                         Dec-05                                                                                                                                                                                                                                                                                                Dec-05
                                                                                                                                                                                                                                                                                                                                                                                                                                                  Mar-06
                                                                             Mar-06                                                                                                                                                                                         Mar-06                                                                                                                                                                                                                                                                                                Mar-06
                                                                                                                                                                                                                                                                                                                                                                                                                                                  Jun-06
                                                                             Jun-06                                                                                                                                                                                         Jun-06                                                                                                                                                                                                                                                                                                Jun-06
                                                                                                                                                                                                                                                                                                                                                                                                                                                  Sep-06
                                                                             Sep-06                                                                                                                                                                                         Sep-06                                                                                                                                                                                                                                                                                                Sep-06
                                                                                                                                                                                                                                                                                                                                                                                                                                                  Dec-06
                                                                             Dec-06                                                                                                                                                                                         Dec-06                                                                                                                                                                                                                                                                                                Dec-06
                                                                             Mar-07                                                                                                                                                                                                                                                                                                                                                               Mar-07
                                                                                                                                                                                                                                                                            Mar-07                                                                                                                                                                                                                                                                                                Mar-07
                                                                             Jun-07                                                                                                                                                                                                                                                                                                                                                               Jun-07
                                                                                                                                                                                                                                                                            Jun-07                                                                                                                                                                                                                                                                                                Jun-07
                                                                             Sep-07                                                                                                                                                                                                                                                                                                                                                               Sep-07
                                                                                                                                                                                                                                                                            Sep-07                                                                                                                                                                                                                                                                                                Sep-07
                                                                             Dec-07                                                                                                                                                                                                                                                                                                                                                               Dec-07
                                                                                                                                                                                                                                                                            Dec-07                                                                                                                                                                                                                                                                                                Dec-07
                                                                             Mar-08                                                                                                                                                                                                                                                                                                                                                               Mar-08
                                                                                                                                                                                                                                                                            Mar-08                                                                                                                                                                                                                                                                                                Mar-08
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       Louisana Oil Footage Drilled




                                                                                                                                                                                                                                                                                                                                                                      Louisiana Gas Footage Drilled




                                                                             Jun-08                                                                                                                                                                                                                                                                                                                                                               Jun-08
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      Exhibit 38: Louisiana Oil Footage Drilled
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                Louisiana Land Footage Drilled




                                                                                                                                                                                                                                                                            Jun-08                                                                                                                                                                                                                                                                                                Jun-08
                                                                                                                                                                                                                                                                                                                                                                                                      Exhibit 40: Louisiana Gas Footage Drilled




                                                                                                                                                                                  Louisiana Horizontal Footage Drilled
                                                                             Sep-08                                                                                                                                                                                                                                                                                                                                                               Sep-08
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 Exhibit 36: Louisiana Land Footage Drilled




                                                                                                                                                                                                                                                                            Sep-08                                                                                                                                                                                                                                                                                                Sep-08
                                                                             Dec-08                                                                                                                                                                                         Dec-08                                                                                                                                                                Dec-08
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  Dec-08
                                                                             Mar-09                                                                                                                                                                                         Mar-09                                                                                                                                                                Mar-09
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  Mar-09



                                                                                                                                                                                                                         Exhibit 42: Louisiana Horizontal Footage Drilled
                                                                             Jun-09                                                                                                                                                                                         Jun-09                                                                                                                                                                Jun-09                                                                                                                          Jun-09
                                                                             Sep-09                                                                                                                                                                                         Sep-09                                                                                                                                                                Sep-09                                                                                                                          Sep-09
                                                                             Dec-09                                                                                                                                                                                         Dec-09                                                                                                                                                                Dec-09                                                                                                                          Dec-09
                                                                             Mar-10                                                                                                                                                                                         Mar-10                                                                                                                                                                Mar-10                                                                                                                          Mar-10




12
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          16 April 2010
                                                                                                  Rigcount                                                                                                                              Rigcount                                                                                                               Rigcount                                                                                                                              Rigcount




                                                                                      0
                                                                                          2
                                                                                                     4
                                                                                                               6
                                                                                                                           8
                                                                                                                                                                                                                                                                                                                                                0
                                                                                                                                                                                                                                                                                                                                                    3
                                                                                                                                                                                                                                                                                                                                                            6
                                                                                                                                                                                                                                                                                                                                                                       9
                                                                                                                                                                                                                                                                                                                                                                               12
                                                                                                                                                                                                                                                                                                                                                                                         15




                                                                                                                                                                                                                              25
                                                                                                                                                                                                                                   45
                                                                                                                                                                                                                                        65
                                                                                                                                                                                                                                             85
                                                                                                                                                                                                                                                   105
                                                                                                                                                                                                                                                         125
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          25
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               45
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    65
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         85
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                105
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      125
                                                                             Jun-05                                                                                                                                                                                                                                                    Jun-05
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      Wyoming

                                                                             Sep-05                                                                                                                                  Jun-05                                                                                                            Sep-05                                                                                                                                    Jun-05




Insight Onshore
                                                                             Dec-05                                                                                                                                  Sep-05                                                                                                            Dec-05                                                                                                                                    Sep-05
                                                                             Mar-06                                                                                                                                  Dec-05                                                                                                            Mar-06                                                                                                                                    Dec-05
                                                                             Jun-06                                                                                                                                  Mar-06                                                                                                                                                                                                                                                      Mar-06
                                                                                                                                                                                                                                                                                                                                       Jun-06
                                                                             Sep-06                                                                                                                                  Jun-06                                                                                                                                                                                                                                                      Jun-06
                                                                                                                                                                                                                                                                                                                                       Sep-06
                                                                             Dec-06                                                                                                                                  Sep-06                                                                                                                                                                                                                                                      Sep-06
                                                                                                                                                                                                                                                                                                                                       Dec-06
                                                                             Mar-07                                                                                                                                  Dec-06                                                                                                                                                                                                                                                      Dec-06
                                                                                                                                                                                                                                                                                                                                       Mar-07
                                                                                                                                                                                                                     Mar-07                                                                                                                                                                                                                                                      Mar-07
                                                                             Jun-07                                                                                                                                                                                                                                                    Jun-07
                                                                                                                                                                                                                     Jun-07                                                                                                                                                                                                                                                      Jun-07
                                                                             Sep-07                                                                                                                                                                                                                                                    Sep-07
                                                                                                                                                                                                                     Sep-07                                                                                                                                                                                                                                                      Sep-07
                                                                             Dec-07                                                                                                                                                                                                                                                    Dec-07
                                                                                                                                                                                                                     Dec-07                                                                                                                                                                                                                                                      Dec-07




                                                                                                                                                                                                                                                                                             Exhibit 47: Wyoming Gas Rigcount
                                                                             Mar-08                                                                                                                                                                                                                                                    Mar-08
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           Exhibit 43: Wyoming Land Rigcount




                                                                                                                                                                                                                     Mar-08                                                                                                                                                                                                                                                      Mar-08




                                                                                                                                                                                                                                                               Wyoming Gas Rigcount
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            Wyoming Land Rigcount




                                                                             Jun-08                                                                                                                                                                                                                                                    Jun-08




                                                                                                                                                                                                                                                                                                                                                                                                        Wyoming Land Oil Rigcount
                                                                                                                                                                                                                     Jun-08                                                                                                                                                                                                                                                      Jun-08



                                                                                                                                                                                                                                                                                                                                                                                                                                       Exhibit 45: Wyoming Land Oil Rigcount




                                                                                                                               Wyoming Horizontal Rigcount
                                                                             Sep-08                                                                                                                                                                                                                                                    Sep-08




                                                                                                                                                                    Exhibit 49: Wyoming Horizontal Rigcount
                                                                                                                                                                                                                     Sep-08                                                                                                                                                                                                                                                      Sep-08
                                                                             Dec-08                                                                                                                                  Dec-08                                                                                                            Dec-08                                                                                                                                    Dec-08
                                                                             Mar-09                                                                                                                                  Mar-09                                                                                                            Mar-09                                                                                                                                    Mar-09
                                                                             Jun-09




                  Source: The Land Rig Newsletter, Credit Suisse estimates
                                                                                                                                                                                                                     Jun-09                                                                                                            Jun-09                                                                                                                                    Jun-09
                                                                             Sep-09                                                                                                                                  Sep-09                                                                                                            Sep-09                                                                                                                                    Sep-09
                                                                             Dec-09                                                                                                                                  Dec-09                                                                                                            Dec-09                                                                                                                                    Dec-09
                                                                             Mar-10                                                                                                                                  Mar-10                                                                                                            Mar-10                                                                                                                                    Mar-10




                                                                                                  Footage                                                                                                                               Footage                                                                                                                     Footage                                                                                                                          Footage




                                                                                      0
                                                                                          20000
                                                                                                   40000
                                                                                                           60000
                                                                                                                   80000
                                                                                                                                                                                                                                                                                                                                                0
                                                                                                                                                                                                                                                                                                                                                    20000
                                                                                                                                                                                                                                                                                                                                                            40000
                                                                                                                                                                                                                                                                                                                                                                      60000
                                                                                                                                                                                                                                                                                                                                                                              80000
                                                                                                                                                                                                                                                                                                                                                                                      100000
                                                                                                                                                                                                                                                                                                                                                                                               120000




                                                                             Jun-05
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            305,000
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            405,000
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            505,000
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            605,000
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            705,000
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            805,000
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            905,000
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          1,005,000
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          1,105,000




                                                                                                                                                                                                                                300,000
                                                                                                                                                                                                                                400,000
                                                                                                                                                                                                                                500,000
                                                                                                                                                                                                                                600,000
                                                                                                                                                                                                                                700,000
                                                                                                                                                                                                                                800,000
                                                                                                                                                                                                                                900,000
                                                                                                                                                                                                                              1,000,000
                                                                                                                                                                                                                              1,100,000
                                                                                                                                                                                                                                                                                                                                       Jun-05
                                                                             Sep-05
                                                                                                                                                                                                                     Jun-05                                                                                                            Sep-05                                                                                                                                    Jun-05
                                                                             Dec-05                                                                                                                                                                                                                                                    Dec-05
                                                                                                                                                                                                                     Sep-05                                                                                                                                                                                                                                                      Sep-05
                                                                             Mar-06                                                                                                                                  Dec-05                                                                                                            Mar-06                                                                                                                                    Dec-05
                                                                             Jun-06                                                                                                                                  Mar-06                                                                                                            Jun-06                                                                                                                                    Mar-06
                                                                             Sep-06                                                                                                                                  Jun-06                                                                                                            Sep-06                                                                                                                                    Jun-06
                                                                             Dec-06                                                                                                                                  Sep-06                                                                                                            Dec-06                                                                                                                                    Sep-06
                                                                             Mar-07                                                                                                                                  Dec-06                                                                                                            Mar-07                                                                                                                                    Dec-06
                                                                             Jun-07                                                                                                                                  Mar-07                                                                                                            Jun-07                                                                                                                                    Mar-07
                                                                             Sep-07                                                                                                                                  Jun-07                                                                                                            Sep-07                                                                                                                                    Jun-07
                                                                             Dec-07                                                                                                                                  Sep-07                                                                                                                                                                                                                                                      Sep-07
                                                                                                                                                                                                                                                                                                                                       Dec-07
                                                                             Mar-08                                                                                                                                  Dec-07                                                                                                                                                                                                                                                      Dec-07
                                                                                                                                                                                                                                                                                                                                       Mar-08
                                                                                                                                                                                                                     Mar-08                                                                                                                                                                                                                                                      Mar-08
                                                                                                                                                                                                                                                                                                                                                                                                         Wyoming Oil Footage Drilled




                                                                             Jun-08
                                                                                                                                                                                                                                                               Wyoming Gas Footage Drilled




                                                                                                                                                                                                                                                                                                                                       Jun-08
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            Wyoming Land Footage Drilled




                                                                                                                                                                                                                                                                                                                                                                                                                                       Exhibit 46: Wyoming Oil Footage Drilled




                                                                                                                                                                                                                     Jun-08                                                                                                                                                                                                                                                      Jun-08
                                                                                                                                                                                                                                                                                             Exhibit 48: Wyoming Gas Footage Drilled




                                                                                                                               Wyoming Horizontal Footage Drilled
                                                                             Sep-08                                                                                                                                                                                                                                                    Sep-08
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           Exhibit 44: Wyoming Land Footage Drilled




                                                                                                                                                                                                                     Sep-08                                                                                                                                                                                                                                                      Sep-08
                                                                             Dec-08                                                                                                                                  Dec-08                                                                                                            Dec-08
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 Dec-08
                                                                             Mar-09                                                                                                                                  Mar-09                                                                                                            Mar-09
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 Mar-09




                                                                                                                                                                    Exhibit 50: Wyoming Horizontal Footage Drilled
                                                                             Jun-09                                                                                                                                  Jun-09                                                                                                            Jun-09                                                                                                                                    Jun-09
                                                                             Sep-09                                                                                                                                  Sep-09                                                                                                            Sep-09                                                                                                                                    Sep-09
                                                                             Dec-09                                                                                                                                  Dec-09                                                                                                            Dec-09                                                                                                                                    Dec-09
                                                                             Mar-10                                                                                                                                  Mar-10                                                                                                            Mar-10                                                                                                                                    Mar-10




13
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                16 April 2010
                                                                                                       Rigcount                                                                                                                                                 Rigcount                                                                                                                     Rigcount                                                                                                                                                 Rigcount




                                                                                                                                                                                                                                                       0
                                                                                                                                                                                                                                                           20
                                                                                                                                                                                                                                                                  40
                                                                                                                                                                                                                                                                           60
                                                                                                                                                                                                                                                                                80




                                                                                      0
                                                                                          3
                                                                                                   6
                                                                                                         9
                                                                                                                12
                                                                                                                         15
                                                                                                                                   18
                                                                                                                                        21
                                                                                                                                                                                                                                                                                                                                                                             5
                                                                                                                                                                                                                                                                                                                                                                            10
                                                                                                                                                                                                                                                                                                                                                                            15
                                                                                                                                                                                                                                                                                                                                                                            20
                                                                                                                                                                                                                                                                                                                                                                            25
                                                                                                                                                                                                                                                                                                                                                                            30
                                                                                                                                                                                                                                                                                                                                                                            35
                                                                                                                                                                                                                                                                                                                                                                            40
                                                                                                                                                                                                                                                                                                                                                                            45
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  20
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               40
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             60
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            80
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           100
                                                                             Jun-05                                                                                                                                                           Jun-05
                                                                                                                                                                                                                                                                                                                                                                   Jun-05
                                                                             Sep-05                                                                                                                                                           Sep-05                                                                                                                                                                                                                                                                     Jun-05
                                                                                                                                                                                                                                                                                                                                                                   Sep-05




Insight Onshore
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 New Mexico


                                                                             Dec-05                                                                                                                                                           Dec-05                                                                                                                                                                                                                                                                     Sep-05
                                                                                                                                                                                                                                                                                                                                                                   Dec-05                                                                                                                                                Dec-05
                                                                             Mar-06                                                                                                                                                           Mar-06
                                                                                                                                                                                                                                                                                                                                                                   Mar-06                                                                                                                                                Mar-06
                                                                             Jun-06                                                                                                                                                           Jun-06
                                                                                                                                                                                                                                                                                                                                                                   Jun-06                                                                                                                                                Jun-06
                                                                             Sep-06                                                                                                                                                           Sep-06                                                                                                               Sep-06
                                                                                                                                                                                                                                              Dec-06                                                                                                                                                                                                                                                                     Sep-06
                                                                             Dec-06                                                                                                                                                                                                                                                                                Dec-06                                                                                                                                                Dec-06
                                                                             Mar-07                                                                                                                                                           Mar-07                                                                                                               Mar-07                                                                                                                                                Mar-07
                                                                             Jun-07                                                                                                                                                           Jun-07                                                                                                               Jun-07                                                                                                                                                Jun-07
                                                                             Sep-07                                                                                                                                                           Sep-07                                                                                                               Sep-07                                                                                                                                                Sep-07
                                                                             Dec-07                                                                                                                                                           Dec-07                                                                                                               Dec-07                                                                                                                                                Dec-07
                                                                             Mar-08                                                                                                                                                           Mar-08                                                                                                               Mar-08                                                                                                                                                Mar-08




                                                                                                                                                                                                                                                                                                                      Exhibit 55: New Mexico Gas Rigcount
                                                                             Jun-08                                                                                                                                                           Jun-08
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   Exhibit 51: New Mexico Land Rigcount




                                                                                                                                                                                                                                                                                     New Mexico Gas Rigcount
                                                                                                                                                                                                                                                                                                                                                                   Jun-08                                                                                                                                                Jun-08
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 New Mexico Land Rigcount




                                                                                                                                                                                                                                                                                                                                                                                                                                           New Mexico Land Oil Rigcount
                                                                             Sep-08                                                                                                                                                           Sep-08                                                                                                               Sep-08




                                                                                                                                                  New Mexico Horizontal Rigcount
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         Sep-08

                                                                                                                                                                                                                                                                                                                                                                                                                                                                            Exhibit 53: New Mexico Land Oil Rigcount
                                                                             Dec-08                                                                                                                                                           Dec-08                                                                                                               Dec-08                                                                                                                                                Dec-08




                                                                                                                                                                                          Exhibit 57: New Mexico Horizontal Rigcount
                                                                             Mar-09                                                                                                                                                           Mar-09                                                                                                               Mar-09                                                                                                                                                Mar-09
                                                                                                                                                                                                                                              Jun-09




                  Source: The Land Rig Newsletter, Credit Suisse estimates
                                                                             Jun-09                                                                                                                                                                                                                                                                                Jun-09                                                                                                                                                Jun-09
                                                                             Sep-09                                                                                                                                                           Sep-09                                                                                                               Sep-09                                                                                                                                                Sep-09
                                                                             Dec-09                                                                                                                                                           Dec-09                                                                                                               Dec-09                                                                                                                                                Dec-09
                                                                             Mar-10                                                                                                                                                           Mar-10                                                                                                               Mar-10                                                                                                                                                Mar-10




                                                                                                       Footage                                                                                                                                                  Footage                                                                                                                        Footage                                                                                                                                                Footage




                                                                                                                                                                                                                                                           -
                                                                                                                                                                                                                                                                                                                                                                            0
                                                                                                                                                                                                                                                                                                                                                                                75,000
                                                                                                                                                                                                                                                                                                                                                                                         150,000
                                                                                                                                                                                                                                                                                                                                                                                                   225,000
                                                                                                                                                                                                                                                                                                                                                                                                             300,000
                                                                                                                                                                                                                                                                                                                                                                                                                       375,000
                                                                                                                                                                                                                                                                                                                                                                                                                                 450,000




                                                                                      0
                                                                                          30,000
                                                                                                       60,000
                                                                                                                90,000
                                                                                                                              120,000
                                                                                                                                        150,000
                                                                                                                                                                                                                                                       100,000
                                                                                                                                                                                                                                                       200,000
                                                                                                                                                                                                                                                       300,000
                                                                                                                                                                                                                                                       400,000
                                                                                                                                                                                                                                                       500,000
                                                                                                                                                                                                                                                       600,000
                                                                                                                                                                                                                                                       700,000
                                                                                                                                                                                                                                                       800,000
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  200,000
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            350,000
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       500,000
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  650,000
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 800,000




                                                                             Jun-05                                                                                                                                                                                                                                                                                Jun-05
                                                                                                                                                                                                                                              Jun-05                                                                                                                                                                                                                                                                     Jun-05
                                                                             Sep-05                                                                                                                                                                                                                                                                                Sep-05
                                                                                                                                                                                                                                              Sep-05                                                                                                                                                                                                                                                                     Sep-05
                                                                             Dec-05                                                                                                                                                                                                                                                                                Dec-05
                                                                                                                                                                                                                                              Dec-05                                                                                                                                                                                                                                                                     Dec-05
                                                                             Mar-06                                                                                                                                                           Mar-06                                                                                                               Mar-06                                                                                                                                                Mar-06
                                                                             Jun-06                                                                                                                                                           Jun-06                                                                                                               Jun-06                                                                                                                                                Jun-06
                                                                             Sep-06                                                                                                                                                           Sep-06                                                                                                               Sep-06                                                                                                                                                Sep-06
                                                                             Dec-06                                                                                                                                                           Dec-06                                                                                                               Dec-06                                                                                                                                                Dec-06
                                                                             Mar-07                                                                                                                                                           Mar-07                                                                                                               Mar-07                                                                                                                                                Mar-07
                                                                             Jun-07                                                                                                                                                           Jun-07                                                                                                               Jun-07                                                                                                                                                Jun-07
                                                                             Sep-07                                                                                                                                                           Sep-07                                                                                                               Sep-07                                                                                                                                                Sep-07
                                                                             Dec-07                                                                                                                                                           Dec-07                                                                                                               Dec-07                                                                                                                                                Dec-07
                                                                             Mar-08                                                                                                                                                           Mar-08                                                                                                               Mar-08                                                                                                                                                Mar-08
                                                                             Jun-08                                                                                                                                                           Jun-08                                                                                                               Jun-08                                                                                                                                                Jun-08
                                                                                                                                                                                                                                                                                                                                                                                                                                           New Mexico Oil Footage Drilled




                                                                                                                                                                                                                                                                                     New Mexico Gas Footage Drilled
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 New Mexico Land Footage Drilled




                                                                             Sep-08                                                                                                                                                                                                                                                                                Sep-08                                                                                                                                                Sep-08
                                                                                                                                                                                                                                                                                                                                                                                                                                                                            Exhibit 54: New Mexico Oil Footage Drilled




                                                                                                                                                                                                                                              Sep-08




                                                                                                                                                  New Mexico Horizontal Footage Drilled
                                                                                                                                                                                                                                                                                                                      Exhibit 56: New Mexico Gas Footage Drilled




                                                                             Dec-08                                                                                                                                                                                                                                                                                Dec-08                                                                                                                                                Dec-08
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   Exhibit 52: New Mexico Land Footage Drilled




                                                                                                                                                                                                                                              Dec-08
                                                                             Mar-09                                                                                                                                                           Mar-09                                                                                                               Mar-09                                                                                                                                                Mar-09
                                                                             Jun-09                                                                                                                                                           Jun-09                                                                                                               Jun-09                                                                                                                                                Jun-09



                                                                                                                                                                                          Exhibit 58: New Mexico Horizontal Footage Drilled
                                                                             Sep-09                                                                                                                                                           Sep-09                                                                                                               Sep-09                                                                                                                                                Sep-09
                                                                             Dec-09                                                                                                                                                           Dec-09                                                                                                               Dec-09                                                                                                                                                Dec-09
                                                                             Mar-10                                                                                                                                                           Mar-10                                                                                                               Mar-10                                                                                                                                                Mar-10




14
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              16 April 2010
                                                                                                      Rigcount                                                                                                                                               Rigcount                                                                                                                            Rigcount                                                                                                                                             Rigcount




                                                                                                                                                                                                                                                     0
                                                                                                                                                                                                                                                         2
                                                                                                                                                                                                                                                               4
                                                                                                                                                                                                                                                                        6
                                                                                                                                                                                                                                                                            8




                                                                                      0
                                                                                          15
                                                                                                     30
                                                                                                                45
                                                                                                                           60
                                                                                                                                      75
                                                                                                                                                                                                                                                                                                                                                                             15
                                                                                                                                                                                                                                                                                                                                                                             25
                                                                                                                                                                                                                                                                                                                                                                             35
                                                                                                                                                                                                                                                                                                                                                                             45
                                                                                                                                                                                                                                                                                                                                                                             55
                                                                                                                                                                                                                                                                                                                                                                             65
                                                                                                                                                                                                                                                                                                                                                                             75
                                                                                                                                                                                                                                                                                                                                                                             85
                                                                                                                                                                                                                                            Jun-05




                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   20
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   30
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   40
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   50
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   60
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   70
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   80
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   90
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  100
                                                                             Jun-05                                                                                                                                                                                                                                                                               Jun-05
                                                                                                                                                                                                                                            Sep-05                                                                                                                                                                                                                                                                       Jun-05
                                                                             Sep-05                                                                                                                                                                                                                                                                               Sep-05




Insight Onshore
                                                                                                                                                                                                                                            Dec-05                                                                                                                                                                                                                                                                       Sep-05
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  North Dakota


                                                                             Dec-05                                                                                                                                                                                                                                                                               Dec-05
                                                                                                                                                                                                                                            Mar-06                                                                                                                                                                                                                                                                       Dec-05
                                                                             Mar-06                                                                                                                                                                                                                                                                               Mar-06
                                                                                                                                                                                                                                            Jun-06                                                                                                                                                                                                                                                                       Mar-06
                                                                             Jun-06                                                                                                                                                                                                                                                                               Jun-06
                                                                                                                                                                                                                                            Sep-06                                                                                                                                                                                                                                                                       Jun-06
                                                                             Sep-06                                                                                                                                                                                                                                                                               Sep-06
                                                                                                                                                                                                                                            Dec-06                                                                                                                                                                                                                                                                       Sep-06
                                                                             Dec-06                                                                                                                                                                                                                                                                               Dec-06
                                                                                                                                                                                                                                            Mar-07                                                                                                                                                                                                                                                                       Dec-06
                                                                             Mar-07                                                                                                                                                                                                                                                                               Mar-07
                                                                                                                                                                                                                                            Jun-07                                                                                                                                                                                                                                                                       Mar-07
                                                                             Jun-07                                                                                                                                                                                                                                                                               Jun-07
                                                                                                                                                                                                                                            Sep-07                                                                                                                                                                                                                                                                       Jun-07
                                                                             Sep-07                                                                                                                                                                                                                                                                               Sep-07                                                                                                                                                 Sep-07
                                                                             Dec-07                                                                                                                                                         Dec-07
                                                                                                                                                                                                                                                                                                                                                                  Dec-07                                                                                                                                                 Dec-07
                                                                             Mar-08                                                                                                                                                         Mar-08                                                                                                                Mar-08                                                                                                                                                 Mar-08
                                                                             Jun-08                                                                                                                                                         Jun-08




                                                                                                                                                                                                                                                                                                                   Exhibit 63: North Dakota Gas Rigcount
                                                                                                                                                                                                                                                                                                                                                                  Jun-08




                                                                                                                                                                                                                                                                                North Dakota Gas Rigcount
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         Jun-08
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              North Dakota Land Rigcount
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  Exhibit 59: North Dakota Land Rigcount




                                                                                                                                                                                                                                                                                                                                                                                                                                        North Dakota Land Oil Rigcount
                                                                             Sep-08                                                                                                                                                         Sep-08                                                                                                                Sep-08




                                                                                                                                            North Dakota Horizontal Rigcount
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         Sep-08

                                                                                                                                                                                                                                                                                                                                                                                                                                                                          Exhibit 61: North Dakota Land Oil Rigcount
                                                                             Dec-08                                                                                                                                                         Dec-08                                                                                                                Dec-08                                                                                                                                                 Dec-08




                                                                                                                                                                                      Exhibit 65: North Dakota Horizontal Rigcount
                                                                             Mar-09                                                                                                                                                         Mar-09                                                                                                                Mar-09                                                                                                                                                 Mar-09




                  Source: The Land Rig Newsletter, Credit Suisse estimates
                                                                             Jun-09                                                                                                                                                         Jun-09                                                                                                                Jun-09                                                                                                                                                 Jun-09
                                                                             Sep-09                                                                                                                                                         Sep-09                                                                                                                Sep-09                                                                                                                                                 Sep-09
                                                                             Dec-09                                                                                                                                                         Dec-09                                                                                                                Dec-09                                                                                                                                                 Dec-09
                                                                             Mar-10                                                                                                                                                         Mar-10                                                                                                                Mar-10                                                                                                                                                 Mar-10




                                                                                                        Footage                                                                                                                                              Footage                                                                                                                             Footage                                                                                                                                                Footage




                                                                                                                                                                                                                                                         0
                                                                                                                                                                                                                                                     10000
                                                                                                                                                                                                                                                     20000
                                                                                                                                                                                                                                                     30000
                                                                                                                                                                                                                                                     40000
                                                                                                                                                                                                                                                     50000
                                                                                                                                                                                                                                                     60000
                                                                                                                                                                                                                                                     70000
                                                                                                                                                                                                                                                     80000
                                                                                                                                                                                                                                            Jun-05




                                                                                      0
                                                                                          175,000
                                                                                                    350,000
                                                                                                              525,000
                                                                                                                        700,000
                                                                                                                                  875,000
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  200,000
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            350,000
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      500,000
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                650,000
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          800,000
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    950,000




                                                                                                                                                                                                                                                                                                                                                                           200,000
                                                                                                                                                                                                                                                                                                                                                                                     350,000
                                                                                                                                                                                                                                                                                                                                                                                               500,000
                                                                                                                                                                                                                                                                                                                                                                                                         650,000
                                                                                                                                                                                                                                                                                                                                                                                                                   800,000
                                                                                                                                                                                                                                                                                                                                                                                                                             950,000




                                                                             Jun-05                                                                                                                                                         Sep-05
                                                                                                                                                                                                                                                                                                                                                                  Jun-05                                                                                                                                                 Jun-05
                                                                             Sep-05                                                                                                                                                         Dec-05
                                                                                                                                                                                                                                                                                                                                                                  Sep-05                                                                                                                                                 Sep-05
                                                                             Dec-05                                                                                                                                                         Mar-06
                                                                                                                                                                                                                                                                                                                                                                  Dec-05                                                                                                                                                 Dec-05
                                                                             Mar-06                                                                                                                                                         Jun-06                                                                                                                                                                                                                                                                       Mar-06
                                                                                                                                                                                                                                                                                                                                                                  Mar-06
                                                                             Jun-06                                                                                                                                                         Sep-06                                                                                                                Jun-06                                                                                                                                                 Jun-06
                                                                             Sep-06                                                                                                                                                         Dec-06                                                                                                                Sep-06                                                                                                                                                 Sep-06
                                                                             Dec-06                                                                                                                                                         Mar-07                                                                                                                Dec-06                                                                                                                                                 Dec-06
                                                                             Mar-07                                                                                                                                                         Jun-07                                                                                                                Mar-07                                                                                                                                                 Mar-07
                                                                             Jun-07                                                                                                                                                         Sep-07                                                                                                                Jun-07                                                                                                                                                 Jun-07
                                                                             Sep-07                                                                                                                                                                                                                                                                               Sep-07                                                                                                                                                 Sep-07
                                                                                                                                                                                                                                            Dec-07
                                                                             Dec-07                                                                                                                                                                                                                                                                               Dec-07                                                                                                                                                 Dec-07
                                                                                                                                                                                                                                            Mar-08
                                                                             Mar-08                                                                                                                                                                                                                                                                               Mar-08                                                                                                                                                 Mar-08
                                                                                                                                                                                                                                            Jun-08
                                                                             Jun-08                                                                                                                                                                                                                                                                               Jun-08                                                                                                                                                 Jun-08
                                                                                                                                                                                                                                                                                                                                                                                                                                       North Dakota Oil Footage Drilled




                                                                                                                                                                                                                                                                                North Dakota Gas Footage Drilled
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              North Dakota Land Footage Drilled




                                                                             Sep-08                                                                                                                                                         Sep-08
                                                                                                                                                                                                                                                                                                                                                                  Sep-08                                                                                                                                                 Sep-08




                                                                                                                                            North Dakota Horizontal Footage Drilled
                                                                                                                                                                                                                                                                                                                                                                                                                                                                          Exhibit 62: North Dakota Oil Footage Drilled




                                                                             Dec-08                                                                                                                                                         Dec-08                                                                                                                                                                                                                                                                       Dec-08
                                                                                                                                                                                                                                                                                                                   Exhibit 64: North Dakota Gas Footage Drilled




                                                                                                                                                                                                                                                                                                                                                                  Dec-08
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  Exhibit 60: North Dakota Land Footage Drilled




                                                                             Mar-09                                                                                                                                                         Mar-09                                                                                                                Mar-09                                                                                                                                                 Mar-09
                                                                             Jun-09                                                                                                                                                         Jun-09                                                                                                                Jun-09                                                                                                                                                 Jun-09
                                                                                                                                                                                                                                            Sep-09


                                                                                                                                                                                      Exhibit 66: North Dakota Horizontal Footage Drilled
                                                                             Sep-09                                                                                                                                                                                                                                                                               Sep-09                                                                                                                                                 Sep-09
                                                                             Dec-09                                                                                                                                                         Dec-09                                                                                                                Dec-09                                                                                                                                                 Dec-09
                                                                             Mar-10                                                                                                                                                         Mar-10                                                                                                                Mar-10                                                                                                                                                 Mar-10




15
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 16 April 2010
                                                                                                                                                                                                                                                                                                                                                                                                     16 April 2010



Bronco

Exhibit 67: BRNC Land Rigcount                                                                                                                                                                                 Exhibit 68: BRNC US Land Footage: Oil vs. Gas
                                                                               BRNC U.S. Land Rigcount                                                                                                                                                                 BRNC U.S. Land Footage: Oil vs. Gas

                            60                                                                                                                                                                      100%
                                                                                                                                                                                                                           500,000
                                                                                                                                                                                                    90%                    450,000
                            50                                                                                                                                                                      80%                    400,000
                            40                                                                                                                                                                      70%                    350,000
             Rigcount




                                                                                                                                                                                                    60%




                                                                                                                                                                                                                Footage
                                                                                                                                                                                                                           300,000
                            30                                                                                                                                                                      50%                    250,000
                                                                                                                                                                                                    40%                    200,000
                            20                                                                                                                                                                      30%                    150,000
                            10                                                                                                                                                                      20%                    100,000
                                                                                                                                                                                                    10%                     50,000
                                 0                                                                                                                                                                  0%                         -




                                                                                                                                                                                                                                          Sep-05
                                                                                                                                                                                                                                                    Dec-05
                                                                                                                                                                                                                                                             Mar-06
                                                                                                                                                                                                                                                                      Jun-06
                                                                                                                                                                                                                                                                               Sep-06
                                                                                                                                                                                                                                                                                         Dec-06
                                                                                                                                                                                                                                                                                                   Mar-07
                                                                                                                                                                                                                                                                                                              Jun-07
                                                                                                                                                                                                                                                                                                                          Sep-07
                                                                                                                                                                                                                                                                                                                                   Dec-07
                                                                                                                                                                                                                                                                                                                                            Mar-08
                                                                                                                                                                                                                                                                                                                                                     Jun-08
                                                                                                                                                                                                                                                                                                                                                                 Sep-08
                                                                                                                                                                                                                                                                                                                                                                             Dec-08
                                                                                                                                                                                                                                                                                                                                                                                        Mar-09
                                                                                                                                                                                                                                                                                                                                                                                                  Jun-09
                                                                                                                                                                                                                                                                                                                                                                                                           Sep-09
                                                                                                                                                                                                                                                                                                                                                                                                                    Dec-09
                                                                                                                                                                                                                                                                                                                                                                                                                             Mar-10
                                      Dec-05

                                      Jun-06

                                      Dec-06

                                      Jun-07

                                      Dec-07

                                      Jun-08

                                                                                                                                       Dec-08

                                                                                                                                                              Jun-09

                                                                                                                                                              Dec-09
                                      Sep-05

                                      Mar-06

                                      Sep-06

                                      Mar-07

                                      Sep-07

                                      Mar-08

                                                                                                                                       Sep-08

                                                                                                                                       Mar-09

                                                                                                                                                              Sep-09

                                                                                                                                                              Mar-10
                                     Marketed Rigcount                                                Active Rigcount                                                  Marketed Utilization
                                                                                                                                                                                                                                                                                         Gas Footage                                                 Oil Footage


Exhibit 69: BRNC US Land Rigcount: Vert. vs. Horiz.                                                                                                                                                            Exhibit 70: BRNC Mid-Continent Rigcount
                                                         BRNC U.S. Land Rigcount: Vertical vs. Horizontal                                                                                                                                                                      BRNC Mid-Continent Rigcount
               45                                                                                                                                                                                                          40
               40                                                                                                                                                                                                          35
               35
                                                                                                                                                                                                                           30
               30
  Rigcount




                                                                                                                                                                                                                Rigcount   25
               25
                                                                                                                                                                                                                           20
               20
               15                                                                                                                                                                                                          15
               10                                                                                                                                                                                                          10
                   5                                                                                                                                                                                                        5
                   0                                                                                                                                                                                                        0
                                     Dec-05


                                                        Jun-06


                                                                          Dec-06


                                                                                             Jun-07


                                                                                                               Dec-07


                                                                                                                                  Jun-08


                                                                                                                                                    Dec-08


                                                                                                                                                                         Jun-09


                                                                                                                                                                                           Dec-09
                        Sep-05


                                              M ar-06


                                                                 Sep-06


                                                                                   M ar-07


                                                                                                      Sep-07


                                                                                                                        M ar-08


                                                                                                                                           Sep-08


                                                                                                                                                             M ar-09


                                                                                                                                                                                  Sep-09


                                                                                                                                                                                                     M ar-10




                                                                                                                                                                                                                                         Dec-05


                                                                                                                                                                                                                                                             Jun-06


                                                                                                                                                                                                                                                                                Dec-06


                                                                                                                                                                                                                                                                                                     Jun-07


                                                                                                                                                                                                                                                                                                                              Dec-07


                                                                                                                                                                                                                                                                                                                                                 Jun-08


                                                                                                                                                                                                                                                                                                                                                                          Dec-08


                                                                                                                                                                                                                                                                                                                                                                                                 Jun-09


                                                                                                                                                                                                                                                                                                                                                                                                                    Dec-09
                                                                                                                                                                                                                                Sep-05


                                                                                                                                                                                                                                                   Mar-06


                                                                                                                                                                                                                                                                      Sep-06


                                                                                                                                                                                                                                                                                          Mar-07


                                                                                                                                                                                                                                                                                                                 Sep-07


                                                                                                                                                                                                                                                                                                                                       Mar-08


                                                                                                                                                                                                                                                                                                                                                              Sep-08


                                                                                                                                                                                                                                                                                                                                                                                      Mar-09


                                                                                                                                                                                                                                                                                                                                                                                                           Sep-09


                                                                                                                                                                                                                                                                                                                                                                                                                             Mar-10
                                                            Vertical Rigcount                                                 Horizontal Rigcount
                                                                                                                                                                                                                                                                       Marketed Rigcount                                                             Active Rigcount

Source: The Land Rig Newsletter, Credit Suisse estimates




Insight Onshore                                                                                                                                                                                                                                                                                                                                                                                                                 16
                                                                                                                                                                                                                                                                                                                                                                                                                                                               16 April 2010



Capstar (Oil States)

Exhibit 71: Capstar US Land Rigcount                                                                                                                                                                                                          Exhibit 72: Capstar Land Footage: Oil vs. Gas
                                                                             Capstar (OIS) U.S. Land Rigcount                                                                                                                                                                                             Capstar (OIS) U.S. Land Footage: Oil vs. Gas
             40                                                                                                                                                                                                                     100%                   200,000

             35                                                                                                                                                                                                                     90%                    180,000
                                                                                                                                                                                                                                    80%                    160,000
             30
                                                                                                                                                                                                                                    70%                    140,000
             25
  Rigcount




                                                                                                                                                                                                                                    60%                    120,000




                                                                                                                                                                                                                                                Footage
             20                                                                                                                                                                                                                     50%                    100,000

             15                                                                                                                                                                                                                     40%                     80,000
                                                                                                                                                                                                                                    30%                     60,000
             10
                                                                                                                                                                                                                                    20%                     40,000
              5                                                                                                                                                                                                                     10%                     20,000
              0                                                                                                                                                                                                                     0%                                   0
                  Jun-05


                                    Dec-05


                                                         Jun-06


                                                                                Dec-06


                                                                                                       Jun-07


                                                                                                                              Dec-07


                                                                                                                                                      Jun-08


                                                                                                                                                                           Dec-08


                                                                                                                                                                                             Jun-09


                                                                                                                                                                                                               Dec-09
                           Sep-05


                                              Mar-06


                                                                    Sep-06


                                                                                             Mar-07


                                                                                                                 Sep-07


                                                                                                                                          Mar-08


                                                                                                                                                                 Sep-08


                                                                                                                                                                                    Mar-09


                                                                                                                                                                                                      Sep-09


                                                                                                                                                                                                                         Mar-10




                                                                                                                                                                                                                                                                              Jun-05


                                                                                                                                                                                                                                                                                                 Dec-05


                                                                                                                                                                                                                                                                                                                   Jun-06


                                                                                                                                                                                                                                                                                                                                       Dec-06


                                                                                                                                                                                                                                                                                                                                                              Jun-07


                                                                                                                                                                                                                                                                                                                                                                                       Dec-07


                                                                                                                                                                                                                                                                                                                                                                                                              Jun-08


                                                                                                                                                                                                                                                                                                                                                                                                                                       Dec-08


                                                                                                                                                                                                                                                                                                                                                                                                                                                              Jun-09


                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  Dec-09
                                                                                                                                                                                                                                                                                        Sep-05


                                                                                                                                                                                                                                                                                                          Mar-06


                                                                                                                                                                                                                                                                                                                             Sep-06


                                                                                                                                                                                                                                                                                                                                                  Mar-07


                                                                                                                                                                                                                                                                                                                                                                          Sep-07


                                                                                                                                                                                                                                                                                                                                                                                                    Mar-08


                                                                                                                                                                                                                                                                                                                                                                                                                           Sep-08


                                                                                                                                                                                                                                                                                                                                                                                                                                                   Mar-09


                                                                                                                                                                                                                                                                                                                                                                                                                                                                        Sep-09


                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           Mar-10
                                             Marketed Rigcount                                                  Active Rigcount                                            Marketed Utilization                                                                                                                                 Gas Footage                               Oil Footage


Exhibit 73: Capstar US Land Rigcount: Vert. vs. Horiz.                                                                                                                                                                                        Exhibit 74: Capstar Permian Rigcount
                                              Capstar (OIS) U.S. Land Rigcount: Vertical vs. Horizontal                                                                                                                                                                                                                     Capstar (OIS) Permian Rigcount
             35                                                                                                                                                                                                                                            25

             30
                                                                                                                                                                                                                                                           20
             25
  Rigcount




                                                                                                                                                                                                                                                Rigcount
                                                                                                                                                                                                                                                           15
             20

             15                                                                                                                                                                                                                                            10

             10
                                                                                                                                                                                                                                                            5
              5

              0                                                                                                                                                                                                                                             0
                                                                                                                                                                                                                                                                Jun-05


                                                                                                                                                                                                                                                                                       Dec-05


                                                                                                                                                                                                                                                                                                          Jun-06


                                                                                                                                                                                                                                                                                                                              Dec-06


                                                                                                                                                                                                                                                                                                                                                     Jun-07


                                                                                                                                                                                                                                                                                                                                                                              Dec-07


                                                                                                                                                                                                                                                                                                                                                                                                         Jun-08


                                                                                                                                                                                                                                                                                                                                                                                                                                    Dec-08


                                                                                                                                                                                                                                                                                                                                                                                                                                                            Jun-09


                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 Dec-09
                                                                                                                                                                                                                                                                             Sep-05


                                                                                                                                                                                                                                                                                                 Mar-06


                                                                                                                                                                                                                                                                                                                    Sep-06


                                                                                                                                                                                                                                                                                                                                         Mar-07


                                                                                                                                                                                                                                                                                                                                                                 Sep-07


                                                                                                                                                                                                                                                                                                                                                                                           Mar-08


                                                                                                                                                                                                                                                                                                                                                                                                                       Sep-08


                                                                                                                                                                                                                                                                                                                                                                                                                                                Mar-09


                                                                                                                                                                                                                                                                                                                                                                                                                                                                       Sep-09


                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           Mar-10
                  Jun-05


                                     Dec-05


                                                           Jun-06


                                                                                    Dec-06


                                                                                                            Jun-07


                                                                                                                                       Dec-07


                                                                                                                                                               Jun-08


                                                                                                                                                                                    Dec-08


                                                                                                                                                                                                      Jun-09


                                                                                                                                                                                                                           Dec-09
                           Sep-05


                                                Mar-06


                                                                       Sep-06


                                                                                                  Mar-07


                                                                                                                          Sep-07


                                                                                                                                                   Mar-08


                                                                                                                                                                          Sep-08


                                                                                                                                                                                             Mar-09


                                                                                                                                                                                                                Sep-09


                                                                                                                                                                                                                                     Mar-10




                                                                     Vertical Rigcount                                        Horizontal Rigcount                                                                                                                                                                             Marketed Rigcount                                           Active Rigcount

Source: The Land Rig Newsletter, Credit Suisse estimates




Insight Onshore                                                                                                                                                                                                                                                                                                                                                                                                                                                                              17
                                                                                                                                                                                                                                                                                                                                                                                                                                                                     16 April 2010



Ensign USA

Exhibit 75: ESI US Land Rigcount                                                                                                                                                                                                                            Exhibit 76: ESI Land Footage: Oil vs. Gas
                                                                                               ESI U.S. Land Rigcount                                                                                                                                                                                                             ESI U.S. Land Footage: Oil vs. Gas
               80                                                                                                                                                                                                                                100%                    600,000

               70                                                                                                                                                                                                                                90%
                                                                                                                                                                                                                                                                         500,000
                                                                                                                                                                                                                                                 80%
               60
                                                                                                                                                                                                                                                 70%
                                                                                                                                                                                                                                                                         400,000
               50




                                                                                                                                                                                                                                                              Rigcount
   Rigcount




                                                                                                                                                                                                                                                 60%
               40                                                                                                                                                                                                                                50%                     300,000

               30                                                                                                                                                                                                                                40%
                                                                                                                                                                                                                                                                         200,000
                                                                                                                                                                                                                                                 30%
               20
                                                                                                                                                                                                                                                 20%                     100,000
               10                                                                                                                                                                                                                                10%
                0                                                                                                                                                                                                                                0%                                    0




                                                                                                                                                                                                                                                                                            Jun-05
                                                                                                                                                                                                                                                                                                     Sep-05


                                                                                                                                                                                                                                                                                                                       Mar-06
                                                                                                                                                                                                                                                                                                                                Jun-06
                                                                                                                                                                                                                                                                                                                                          Sep-06


                                                                                                                                                                                                                                                                                                                                                                 Mar-07
                                                                                                                                                                                                                                                                                                                                                                              Jun-07
                                                                                                                                                                                                                                                                                                                                                                                        Sep-07


                                                                                                                                                                                                                                                                                                                                                                                                               Mar-08
                                                                                                                                                                                                                                                                                                                                                                                                                           Jun-08
                                                                                                                                                                                                                                                                                                                                                                                                                                      Sep-08


                                                                                                                                                                                                                                                                                                                                                                                                                                                          Mar-09
                                                                                                                                                                                                                                                                                                                                                                                                                                                                   Jun-09
                                                                                                                                                                                                                                                                                                                                                                                                                                                                            Sep-09


                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               Mar-10
                                                                                                                                                                                                                                                                                                              Dec-05




                                                                                                                                                                                                                                                                                                                                                     Dec-06




                                                                                                                                                                                                                                                                                                                                                                                                  Dec-07




                                                                                                                                                                                                                                                                                                                                                                                                                                                Dec-08




                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     Dec-09
                      Jun-05


                                          Dec-05


                                                               Jun-06


                                                                                      Dec-06


                                                                                                                 Jun-07


                                                                                                                                        Dec-07


                                                                                                                                                                Jun-08


                                                                                                                                                                                     Dec-08


                                                                                                                                                                                                        Jun-09


                                                                                                                                                                                                                           Dec-09
                                Sep-05


                                                    Mar-06


                                                                          Sep-06


                                                                                                   Mar-07


                                                                                                                           Sep-07


                                                                                                                                                    Mar-08


                                                                                                                                                                           Sep-08


                                                                                                                                                                                               Mar-09


                                                                                                                                                                                                                 Sep-09


                                                                                                                                                                                                                                      Mar-10
                                         Marketed Rigcount                                                            Active Rigcount                                                         Marketed Utilization                                                                                                                                 Gas Footage                                   Oil Footage

Exhibit 77: ESI US Land Rigcount: Vert. vs. Horiz.                                                                                                                                                                                                          Exhibit 78: ESI California Rigcount
                                                               ESI U.S. Land Rigcount: Vertical vs. Horizontal                                                                                                                                                                                                                                     ESI California Rigcount
               60                                                                                                                                                                                                                                                        20
                                                                                                                                                                                                                                                                         18
               50
                                                                                                                                                                                                                                                                         16
                                                                                                                                                                                                                                                                         14
               40
                                                                                                                                                                                                                                                              Rigcount
                                                                                                                                                                                                                                                                         12
    Rigcount




               30                                                                                                                                                                                                                                                        10
                                                                                                                                                                                                                                                                          8
               20                                                                                                                                                                                                                                                         6
                                                                                                                                                                                                                                                                          4
               10
                                                                                                                                                                                                                                                                          2
                0                                                                                                                                                                                                                                                         0
                                                                                                                                                                                                                                                                              Jun-05


                                                                                                                                                                                                                                                                                                     Dec-05


                                                                                                                                                                                                                                                                                                                       Jun-06


                                                                                                                                                                                                                                                                                                                                            Dec-06


                                                                                                                                                                                                                                                                                                                                                                     Jun-07


                                                                                                                                                                                                                                                                                                                                                                                             Dec-07


                                                                                                                                                                                                                                                                                                                                                                                                                        Jun-08


                                                                                                                                                                                                                                                                                                                                                                                                                                               Dec-08


                                                                                                                                                                                                                                                                                                                                                                                                                                                                   Jun-09


                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      Dec-09
                                                                                                                                                                                                                                                                                           Sep-05


                                                                                                                                                                                                                                                                                                              Mar-06


                                                                                                                                                                                                                                                                                                                                 Sep-06


                                                                                                                                                                                                                                                                                                                                                        Mar-07


                                                                                                                                                                                                                                                                                                                                                                                   Sep-07


                                                                                                                                                                                                                                                                                                                                                                                                           Mar-08


                                                                                                                                                                                                                                                                                                                                                                                                                                    Sep-08


                                                                                                                                                                                                                                                                                                                                                                                                                                                         Mar-09


                                                                                                                                                                                                                                                                                                                                                                                                                                                                            Sep-09


                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 Mar-10
                      Jun-05




                                                                 Jun-06




                                                                                                                      Jun-07




                                                                                                                                                                         Jun-08




                                                                                                                                                                                                                 Jun-09
                                           Dec-05




                                                                                          Dec-06




                                                                                                                                                 Dec-07




                                                                                                                                                                                               Dec-08




                                                                                                                                                                                                                                        Dec-09
                                Sep-05


                                                      Mar-06


                                                                             Sep-06


                                                                                                        Mar-07


                                                                                                                                    Sep-07


                                                                                                                                                             Mar-08


                                                                                                                                                                                    Sep-08


                                                                                                                                                                                                        Mar-09


                                                                                                                                                                                                                            Sep-09


                                                                                                                                                                                                                                                  Mar-10




                                                                        Vertical Rigcount                                      Horizontal Rigcount                                                                                                                                                                                        Marketed Rigcount                                      Active Rigcount


Exhibit 79: ESI Rockies Rigcount
                                                                                               ESI Rockies Rigcount
               60


               50


               40
 Rigcount




               30


               20


               10


                0
                    Jun-05


                                          Dec-05
                                                    Mar-06
                                                                Jun-06


                                                                                         Dec-06
                                                                                                       Mar-07
                                                                                                                      Jun-07


                                                                                                                                                 Dec-07
                                                                                                                                                             Mar-08
                                                                                                                                                                         Jun-08


                                                                                                                                                                                               Dec-08
                                                                                                                                                                                                        Mar-09
                                                                                                                                                                                                                  Jun-09


                                                                                                                                                                                                                                         Dec-09
                                                                                                                                                                                                                                                   Mar-10
                               Sep-05




                                                                            Sep-06




                                                                                                                                    Sep-07




                                                                                                                                                                                    Sep-08




                                                                                                                                                                                                                             Sep-09




                                                                                     Marketed Rigcount                                                    Active Rigcount

Source: The Land Rig Newsletter, Credit Suisse estimates




Insight Onshore                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    18
                                                                                                                                                                    16 April 2010



Grey Wolf Inc.

Exhibit 80: GW US Land Rigcount                                                                    Exhibit 81: GW US Land Footage: Oil vs. Gas
                                            GW U.S. Land Rigcount                                                          GW U.S. Land Footage: Oil vs. Gas
               160                                                                          100%          2,500,000
               140
                                                                                            80%           2,000,000
               120
    Rigcount




               100                                                                          60%




                                                                                                        Footage
                                                                                                          1,500,000
                80
                60                                                                          40%           1,000,000
                40                                                                          20%
                20                                                                                             500,000
                 0                                                                          0%
                                                                                                                       0
                        Jun-05

                        Dec-05

                        Jun-06

                        Dec-06

                        Jun-07

                        Dec-07

                        Jun-08

                        Dec-08

                        Jun-09

                        Dec-09
                        Sep-05

                        Mar-06

                        Sep-06

                        Mar-07

                        Sep-07

                        Mar-08

                        Sep-08

                        Mar-09

                        Sep-09

                        Mar-10




                                                                                                                           Jun-05

                                                                                                                           Dec-05

                                                                                                                           Jun-06

                                                                                                                           Dec-06

                                                                                                                           Jun-07

                                                                                                                           Dec-07

                                                                                                                           Jun-08

                                                                                                                           Dec-08

                                                                                                                           Jun-09

                                                                                                                           Dec-09
                                                                                                                           Sep-05

                                                                                                                           Mar-06

                                                                                                                           Sep-06

                                                                                                                           Mar-07

                                                                                                                           Sep-07

                                                                                                                           Mar-08

                                                                                                                           Sep-08

                                                                                                                           Mar-09

                                                                                                                           Sep-09

                                                                                                                           Mar-10
                        Marketed Rigcount         Active Rigcount           Marketed Utilization                                  Gas Footage      Oil Footage

Exhibit 82: GW US Land Rigcount: Vert. vs. Horiz.                                                  Exhibit 83: GW ArkLaTex Rigcount
                              GW U.S. Land Rigcount: Vertical vs. Horizontal                                                    GW ArkLaTex Rigcount
               120                                                                                                50
                                                                                                                  45
               100                                                                                                40
                80                                                                                                35
    Rigcount




                                                                                                    Rigcount
                                                                                                                  30
                60                                                                                                25
                                                                                                                  20
                40
                                                                                                                  15
                20                                                                                                10
                                                                                                                   5
                    0                                                                                              0
                        Jun-05

                        Dec-05

                        Jun-06

                        Dec-06

                        Jun-07

                        Dec-07

                        Jun-08

                        Dec-08

                        Jun-09

                        Dec-09
                        Sep-05

                        Mar-06

                        Sep-06

                        Mar-07

                        Sep-07

                        Mar-08

                        Sep-08

                        Mar-09

                        Sep-09

                        Mar-10




                                                                                                                       Jun-05

                                                                                                                       Dec-05

                                                                                                                       Jun-06

                                                                                                                       Dec-06

                                                                                                                       Jun-07

                                                                                                                       Dec-07

                                                                                                                       Jun-08

                                                                                                                       Dec-08

                                                                                                                       Jun-09

                                                                                                                       Dec-09
                                                                                                                       Sep-05

                                                                                                                       Mar-06

                                                                                                                       Sep-06

                                                                                                                       Mar-07

                                                                                                                       Sep-07

                                                                                                                       Mar-08

                                                                                                                       Sep-08

                                                                                                                       Mar-09

                                                                                                                       Sep-09

                                                                                                                       Mar-10
                                  Vertical Rigcount   Horizontal Rigcount
                                                                                                                            Marketed Rigcount     Active Rigcount

Exhibit 84: GW Gulf Coast Rigcount                                                                 Exhibit 85: GW Rockies Rigcount
                                        GW Gulf Coast Rigcount                                                                  GW Rockies Rigcount
               30                                                                                                 30
               25                                                                                                 25
               20                                                                                                 20
  Rigcount




                                                                                                    Rigcount




               15                                                                                                 15
               10                                                                                                 10
                5                                                                                                  5
                0                                                                                                  0
                    Jun-05

                    Dec-05

                    Jun-06

                    Dec-06

                    Jun-07

                    Dec-07

                    Jun-08

                    Dec-08

                    Jun-09

                    Dec-09
                    Sep-05

                    Mar-06

                    Sep-06

                    Mar-07

                    Sep-07

                    Mar-08

                    Sep-08

                    Mar-09

                    Sep-09

                    Mar-10




                                                                                                                       Jun-05

                                                                                                                       Dec-05

                                                                                                                       Jun-06

                                                                                                                       Dec-06

                                                                                                                       Jun-07

                                                                                                                       Dec-07

                                                                                                                       Jun-08

                                                                                                                       Dec-08

                                                                                                                       Jun-09

                                                                                                                       Dec-09
                                                                                                                       Sep-05

                                                                                                                       Mar-06

                                                                                                                       Sep-06

                                                                                                                       Mar-07

                                                                                                                       Sep-07

                                                                                                                       Mar-08

                                                                                                                       Sep-08

                                                                                                                       Mar-09

                                                                                                                       Sep-09

                                                                                                                       Mar-10


                                     Marketed Rigcount    Active Rigcount                                                  Marketed Rigcount    Active Rigcount

Source: The Land Rig Newsletter, Credit Suisse estimates




Insight Onshore                                                                                                                                                              19
                                                                                                                                                                                                                                                                                                                                       16 April 2010



Helmerich & Payne

Exhibit 86: HP US Land Rigcount                                                                                                               Exhibit 87: HP US Land Footage: Oil vs. Gas
                                                            HP U.S. Land Rigcount                                                                                                                              HP U.S. Land Footage: Oil vs. Gas
              200                                                                                                                      100%                 2,500,000
              180                                                                                                                      90%
              160                                                                                                                      80%                  2,000,000
              140                                                                                                                      70%




                                                                                                                                                Rigcount
   Rigcount




              120                                                                                                                      60%                  1,500,000
              100                                                                                                                      50%
               80                                                                                                                      40%                  1,000,000
               60                                                                                                                      30%
               40                                                                                                                      20%                   500,000
               20                                                                                                                      10%
                0                                                                                                                      0%                                      0




                                                                                                                                                                                     Jun-05

                                                                                                                                                                                     Dec-05

                                                                                                                                                                                     Jun-06

                                                                                                                                                                                     Dec-06

                                                                                                                                                                                     Jun-07

                                                                                                                                                                                     Dec-07

                                                                                                                                                                                     Jun-08

                                                                                                                                                                                     Dec-08

                                                                                                                                                                                     Jun-09

                                                                                                                                                                                     Dec-09
                       Jun-05




                       Jun-06




                       Jun-07




                       Jun-08




                       Jun-09
                       Dec-05




                       Dec-06




                       Dec-07




                       Dec-08




                       Dec-09




                                                                                                                                                                                     Sep-05

                                                                                                                                                                                     Mar-06

                                                                                                                                                                                     Sep-06

                                                                                                                                                                                     Mar-07

                                                                                                                                                                                     Sep-07

                                                                                                                                                                                     Mar-08

                                                                                                                                                                                     Sep-08

                                                                                                                                                                                     Mar-09

                                                                                                                                                                                     Sep-09

                                                                                                                                                                                     Mar-10
                       Sep-05

                       Mar-06

                       Sep-06

                       Mar-07

                       Sep-07

                       Mar-08

                       Sep-08

                       Mar-09

                       Sep-09

                       Mar-10
                            Marketed Rigcount                          Active Rigcount                      Marketed Utilization                                                                                                  Gas Footage                                  Oil Footage

Exhibit 88: HP Land Rigcount: Vert. vs. Horiz.                                                                                                Exhibit 89: HP ArkLaTex Rigcount
                                       HP U.S. Land Rigcount: Vertical vs. Horizontal                                                                                                                                       HP ArkLaTex Rigcount
              120                                                                                                                                           50
              100                                                                                                                                           40




                                                                                                                                                 Rigcount
               80
   Footage




                                                                                                                                                            30
               60
                                                                                                                                                            20
               40
               20                                                                                                                                           10

                   0                                                                                                                                         0
                                                                                                                                                                   Jan-06



                                                                                                                                                                                                      Oct-06
                                                                                                                                                                                                                   Jan-07



                                                                                                                                                                                                                                                    Oct-07
                                                                                                                                                                                                                                                             Jan-08



                                                                                                                                                                                                                                                                                              Oct-08
                                                                                                                                                                                                                                                                                                           Jan-09



                                                                                                                                                                                                                                                                                                                                              Oct-09
                                                                                                                                                                                                                                                                                                                                                         Jan-10
                                                                                                                                                                               Apr-06
                                                                                                                                                                                            Jul-06



                                                                                                                                                                                                                               Apr-07
                                                                                                                                                                                                                                          Jul-07



                                                                                                                                                                                                                                                                       Apr-08
                                                                                                                                                                                                                                                                                  Jul-08



                                                                                                                                                                                                                                                                                                                     Apr-09
                                                                                                                                                                                                                                                                                                                                  Jul-09



                                                                                                                                                                                                                                                                                                                                                                   Apr-10
                       Jun-05




                       Jun-06




                       Jun-07




                       Jun-08




                       Jun-09
                       Dec-05




                       Dec-06




                       Dec-07




                       Dec-08




                       Dec-09
                       Sep-05

                       Mar-06

                       Sep-06

                       Mar-07

                       Sep-07

                       Mar-08

                       Sep-08

                       Mar-09

                       Sep-09

                       Mar-10




                                                 Vertical Rigcount                Horizontal Rigcount                                                                                                      Marketed Rigcount                                                       Active Rigcount

Exhibit 90: HP Gulf Coast Rigcount                                                                                                            Exhibit 91: HP Mid-Continent Rigcount
                                                           HP Gulf Coast Rigcount                                                                                                                                     HP Mid-Continent Rigcount
              25                                                                                                                                            50

              20                                                                                                                                            40
                                                                                                                                               Rigcount
  Rigcount




              15                                                                                                                                            30

              10                                                                                                                                            20

               5                                                                                                                                            10

               0                                                                                                                                             0
                                                                                                                                                                 Jun-05

                                                                                                                                                                 Dec-05

                                                                                                                                                                 Jun-06

                                                                                                                                                                 Dec-06

                                                                                                                                                                 Jun-07

                                                                                                                                                                 Dec-07

                                                                                                                                                                 Jun-08

                                                                                                                                                                 Dec-08

                                                                                                                                                                 Jun-09

                                                                                                                                                                 Dec-09
                                                                                                                                                                 Sep-05

                                                                                                                                                                 Mar-06

                                                                                                                                                                 Sep-06

                                                                                                                                                                 Mar-07

                                                                                                                                                                 Sep-07

                                                                                                                                                                 Mar-08

                                                                                                                                                                 Sep-08

                                                                                                                                                                 Mar-09

                                                                                                                                                                 Sep-09

                                                                                                                                                                 Mar-10
                    Jun-05

                    Dec-05

                    Jun-06

                    Dec-06

                    Jun-07

                    Dec-07

                    Jun-08

                    Dec-08

                    Jun-09

                    Dec-09
                    Sep-05

                    Mar-06

                    Sep-06

                    Mar-07

                    Sep-07

                    Mar-08

                    Sep-08

                    Mar-09

                    Sep-09

                    Mar-10




                                                 Marketed Rigcount                       Active Rigcount                                                                                                       Marketed Rigcount                                                Active Rigcount

Exhibit 92: HP Rockies Rigcount                                                                                                               Exhibit 93: HP South Texas Rigcount
                                                            HP Rockies Rigcount                                                                                                                                         HP South Texas Rigcount
              60                                                                                                                                            40
              50                                                                                                                                            35
                                                                                                                                                            30
              40
                                                                                                                                               Rigcount
  Rigcount




                                                                                                                                                            25
              30                                                                                                                                            20
                                                                                                                                                            15
              20
                                                                                                                                                            10
              10                                                                                                                                             5
               0                                                                                                                                             0
                                                                                                                                                                 Jun-05


                                                                                                                                                                                        Dec-05


                                                                                                                                                                                                          Jun-06


                                                                                                                                                                                                                                 Dec-06


                                                                                                                                                                                                                                                    Jun-07


                                                                                                                                                                                                                                                                      Dec-07


                                                                                                                                                                                                                                                                                           Jun-08


                                                                                                                                                                                                                                                                                                                Dec-08


                                                                                                                                                                                                                                                                                                                                     Jun-09


                                                                                                                                                                                                                                                                                                                                                          Dec-09
                                                                                                                                                                            Sep-05


                                                                                                                                                                                                 Mar-06


                                                                                                                                                                                                                      Sep-06


                                                                                                                                                                                                                                           Mar-07


                                                                                                                                                                                                                                                             Sep-07


                                                                                                                                                                                                                                                                                Mar-08


                                                                                                                                                                                                                                                                                                       Sep-08


                                                                                                                                                                                                                                                                                                                         Mar-09


                                                                                                                                                                                                                                                                                                                                                Sep-09


                                                                                                                                                                                                                                                                                                                                                                   Mar-10
                              Jul-07

                                        Oct-07

                                                  Jan-08




                                                                       Jul-08

                                                                                Oct-08

                                                                                          Jan-09




                                                                                                            Jul-09

                                                                                                                     Oct-09

                                                                                                                              Jan-10
                   Apr-07




                                                              Apr-08




                                                                                                   Apr-09




                                                  Marketed Rigcount                      Active Rigcount                                                                                                       Marketed Rigcount                                               Active Rigcount

Source: The Land Rig Newsletter, Credit Suisse estimates




Insight Onshore                                                                                                                                                                                                                                                                                                                                                       20
                                                                                                                                                                                                                                                                                                                                                                                                                                                       16 April 2010



Nabors

Exhibit 94: NBR US Land Rigcount                                                                                                                                                                                                                    Exhibit 95: NBR US Land Footage: Oil vs. Gas
                                                                                        NBR U.S. Land Rigcount                                                                                                                                                                                                           NBR U.S. Land Footage: Oil vs. Gas
            350                                                                                                                                                                                                                           100%                   3,500,000
                                                                                                                                                                                                                                          90%                    3,000,000
            300
                                                                                                                                                                                                                                          80%
            250                                                                                                                                                                                                                           70%                    2,500,000
 Rigcount




                                                                                                                                                                                                                                                      Footage
            200                                                                                                                                                                                                                           60%                    2,000,000
                                                                                                                                                                                                                                          50%
            150                                                                                                                                                                                                                           40%                    1,500,000
            100                                                                                                                                                                                                                           30%                    1,000,000
                                                                                                                                                                                                                                          20%
             50                                                                                                                                                                                                                                                   500,000
                                                                                                                                                                                                                                          10%
                 0                                                                                                                                                                                                                        0%                                        0




                                                                                                                                                                                                                                                                                           Jun-05


                                                                                                                                                                                                                                                                                                       Dec-05

                                                                                                                                                                                                                                                                                                                                  Jun-06


                                                                                                                                                                                                                                                                                                                                                        Dec-06

                                                                                                                                                                                                                                                                                                                                                                          Jun-07


                                                                                                                                                                                                                                                                                                                                                                                               Dec-07


                                                                                                                                                                                                                                                                                                                                                                                                                  Jun-08


                                                                                                                                                                                                                                                                                                                                                                                                                                       Dec-08

                                                                                                                                                                                                                                                                                                                                                                                                                                                        Jun-09


                                                                                                                                                                                                                                                                                                                                                                                                                                                                  Dec-09
                                                                                                                                                                                                                                                                                                       Sep-05

                                                                                                                                                                                                                                                                                                       Mar-06


                                                                                                                                                                                                                                                                                                                                             Sep-06

                                                                                                                                                                                                                                                                                                                                                        Mar-07


                                                                                                                                                                                                                                                                                                                                                                                    Sep-07

                                                                                                                                                                                                                                                                                                                                                                                               Mar-08


                                                                                                                                                                                                                                                                                                                                                                                                                           Sep-08

                                                                                                                                                                                                                                                                                                                                                                                                                                       Mar-09


                                                                                                                                                                                                                                                                                                                                                                                                                                                                  Sep-09

                                                                                                                                                                                                                                                                                                                                                                                                                                                                  Mar-10
                     Jun-05


                                           Dec-05


                                                                Jun-06


                                                                                      Dec-06


                                                                                                            Jun-07


                                                                                                                                   Dec-07


                                                                                                                                                           Jun-08


                                                                                                                                                                                Dec-08


                                                                                                                                                                                                   Jun-09


                                                                                                                                                                                                                       Dec-09
                                Sep-05


                                           Mar-06


                                                                            Sep-06


                                                                                      Mar-07


                                                                                                                        Sep-07


                                                                                                                                               Mar-08


                                                                                                                                                                      Sep-08


                                                                                                                                                                                Mar-09


                                                                                                                                                                                                             Sep-09


                                                                                                                                                                                                                       Mar-10
                                   Marketed Rigcount                                                          Active Rigcount                                                     Marketed Utilization                                                                                                                                                Gas Footage                              Oil Footage

Exhibit 96: NBR US Land Rigcount: Vert. vs. Horiz.                                                                                                                                                                                                  Exhibit 97: NBR ArkLaTex Rigcount
                                                     NBR U.S. Land Rigcount: Vertical vs. Horizontal                                                                                                                                                                                                                                      NBR ArkLaTex Rigcount
            300                                                                                                                                                                                                                                                  100
                                                                                                                                                                                                                                                                  90
            250                                                                                                                                                                                                                                                   80
            200                                                                                                                                                                                                                                                   70




                                                                                                                                                                                                                                                      Rigcount
 Rigcount




                                                                                                                                                                                                                                                                  60
            150                                                                                                                                                                                                                                                   50
                                                                                                                                                                                                                                                                  40
            100                                                                                                                                                                                                                                                   30
                                                                                                                                                                                                                                                                  20
             50
                                                                                                                                                                                                                                                                  10
                 0                                                                                                                                                                                                                                                 0     Jun-05


                                                                                                                                                                                                                                                                                                Dec-05


                                                                                                                                                                                                                                                                                                                      Jun-06


                                                                                                                                                                                                                                                                                                                                             Dec-06


                                                                                                                                                                                                                                                                                                                                                                 Jun-07


                                                                                                                                                                                                                                                                                                                                                                                      Dec-07


                                                                                                                                                                                                                                                                                                                                                                                                          Jun-08


                                                                                                                                                                                                                                                                                                                                                                                                                                Dec-08


                                                                                                                                                                                                                                                                                                                                                                                                                                                      Jun-09


                                                                                                                                                                                                                                                                                                                                                                                                                                                                          Dec-09
                                                                                                                                                                                                                                                                                     Sep-05


                                                                                                                                                                                                                                                                                                           Mar-06


                                                                                                                                                                                                                                                                                                                                 Sep-06


                                                                                                                                                                                                                                                                                                                                                       Mar-07


                                                                                                                                                                                                                                                                                                                                                                           Sep-07


                                                                                                                                                                                                                                                                                                                                                                                                Mar-08


                                                                                                                                                                                                                                                                                                                                                                                                                       Sep-08


                                                                                                                                                                                                                                                                                                                                                                                                                                             Mar-09


                                                                                                                                                                                                                                                                                                                                                                                                                                                                 Sep-09


                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   Mar-10
                     Jun-05


                                            Dec-05


                                                                   Jun-06


                                                                                          Dec-06


                                                                                                                     Jun-07


                                                                                                                                             Dec-07


                                                                                                                                                                     Jun-08


                                                                                                                                                                                          Dec-08


                                                                                                                                                                                                              Jun-09


                                                                                                                                                                                                                                 Dec-09
                                 Sep-05


                                                       Mar-06


                                                                               Sep-06


                                                                                                     Mar-07


                                                                                                                                 Sep-07


                                                                                                                                                         Mar-08


                                                                                                                                                                                Sep-08


                                                                                                                                                                                                    Mar-09


                                                                                                                                                                                                                        Sep-09


                                                                                                                                                                                                                                           Mar-10




                                                                  Vertical Rigcount                                               Horizontal Rigcount                                                                                                                                                                              Marketed Rigcount                                           Active Rigcount



Exhibit 98: NBR Gulf Coast Rigcount                                                                                                                                                                                                                 Exhibit 99: NBR South Texas Rigcount
                                                                                      NBR Gulf Coast Rigcount                                                                                                                                                                                                                       NBR South Texas Rigcount
            35                                                                                                                                                                                                                                                   40
            30                                                                                                                                                                                                                                                   35
            25                                                                                                                                                                                                                                                   30
 Rigcount




                                                                                                                                                                                                                                                     Rigcount




                                                                                                                                                                                                                                                                 25
            20
                                                                                                                                                                                                                                                                 20
            15
                                                                                                                                                                                                                                                                 15
            10
                                                                                                                                                                                                                                                                 10
             5
                                                                                                                                                                                                                                                                  5
             0                                                                                                                                                                                                                                                    0
                 Jun-05


                                          Dec-05


                                                                Jun-06


                                                                                        Dec-06


                                                                                                               Jun-07


                                                                                                                                          Dec-07


                                                                                                                                                                    Jun-08


                                                                                                                                                                                         Dec-08


                                                                                                                                                                                                             Jun-09


                                                                                                                                                                                                                                 Dec-09
                              Sep-05


                                                     Mar-06


                                                                             Sep-06


                                                                                                   Mar-07


                                                                                                                              Sep-07


                                                                                                                                                        Mar-08


                                                                                                                                                                               Sep-08


                                                                                                                                                                                                   Mar-09


                                                                                                                                                                                                                       Sep-09


                                                                                                                                                                                                                                           Mar-10




                                                                                                                                                                                                                                                                      Jun-05


                                                                                                                                                                                                                                                                                              Dec-05


                                                                                                                                                                                                                                                                                                                    Jun-06


                                                                                                                                                                                                                                                                                                                                           Dec-06


                                                                                                                                                                                                                                                                                                                                                                Jun-07


                                                                                                                                                                                                                                                                                                                                                                                     Dec-07


                                                                                                                                                                                                                                                                                                                                                                                                         Jun-08


                                                                                                                                                                                                                                                                                                                                                                                                                                Dec-08


                                                                                                                                                                                                                                                                                                                                                                                                                                                      Jun-09


                                                                                                                                                                                                                                                                                                                                                                                                                                                                          Dec-09
                                                                                                                                                                                                                                                                                  Sep-05


                                                                                                                                                                                                                                                                                                         Mar-06


                                                                                                                                                                                                                                                                                                                               Sep-06


                                                                                                                                                                                                                                                                                                                                                      Mar-07


                                                                                                                                                                                                                                                                                                                                                                          Sep-07


                                                                                                                                                                                                                                                                                                                                                                                               Mar-08


                                                                                                                                                                                                                                                                                                                                                                                                                      Sep-08


                                                                                                                                                                                                                                                                                                                                                                                                                                             Mar-09


                                                                                                                                                                                                                                                                                                                                                                                                                                                                 Sep-09


                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   Mar-10
                                                                             Marketed Rigcount                                                       Active Rigcount                                                                                                                                                             Marketed Rigcount                                             Active Rigcount

Exhibit 100: NBR Permian Basin Rigcount                                                                                                                                                                                                             Exhibit 101: NBR Rockies Rigcount
                                                                               NBR Permian Basin Rigcount                                                                                                                                                                                                                                  NBR Rockies Rigcount
            30                                                                                                                                                                                                                                                   100
                                                                                                                                                                                                                                                                  90
            25                                                                                                                                                                                                                                                    80
            20                                                                                                                                                                                                                                                    70
                                                                                                                                                                                                                                                     Rigcount
 Rigcount




                                                                                                                                                                                                                                                                  60
            15                                                                                                                                                                                                                                                    50
                                                                                                                                                                                                                                                                  40
            10                                                                                                                                                                                                                                                    30
             5                                                                                                                                                                                                                                                    20
                                                                                                                                                                                                                                                                  10
             0                                                                                                                                                                                                                                                     0
                                                                                                                                                                                                                                                                        Jun-05


                                                                                                                                                                                                                                                                                                Dec-05


                                                                                                                                                                                                                                                                                                                      Jun-06


                                                                                                                                                                                                                                                                                                                                            Dec-06


                                                                                                                                                                                                                                                                                                                                                                 Jun-07


                                                                                                                                                                                                                                                                                                                                                                                      Dec-07


                                                                                                                                                                                                                                                                                                                                                                                                          Jun-08


                                                                                                                                                                                                                                                                                                                                                                                                                                    Dec-08


                                                                                                                                                                                                                                                                                                                                                                                                                                                      Jun-09


                                                                                                                                                                                                                                                                                                                                                                                                                                                                          Dec-09
                                                                                                                                                                                                                                                                                    Sep-05


                                                                                                                                                                                                                                                                                                           Mar-06


                                                                                                                                                                                                                                                                                                                                 Sep-06


                                                                                                                                                                                                                                                                                                                                                       Mar-07


                                                                                                                                                                                                                                                                                                                                                                           Sep-07


                                                                                                                                                                                                                                                                                                                                                                                                Mar-08


                                                                                                                                                                                                                                                                                                                                                                                                                       Sep-08


                                                                                                                                                                                                                                                                                                                                                                                                                                             Mar-09


                                                                                                                                                                                                                                                                                                                                                                                                                                                                 Sep-09


                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   Mar-10
                 Jun-05


                                          Dec-05


                                                                Jun-06


                                                                                        Dec-06


                                                                                                                Jun-07


                                                                                                                                            Dec-07


                                                                                                                                                                    Jun-08


                                                                                                                                                                                         Dec-08


                                                                                                                                                                                                              Jun-09


                                                                                                                                                                                                                                 Dec-09
                              Sep-05


                                                     Mar-06


                                                                             Sep-06


                                                                                                   Mar-07


                                                                                                                              Sep-07


                                                                                                                                                        Mar-08


                                                                                                                                                                               Sep-08


                                                                                                                                                                                                   Mar-09


                                                                                                                                                                                                                       Sep-09


                                                                                                                                                                                                                                           Mar-10




                                                                            Marketed Rigcount                                                        Active Rigcount                                                                                                                                                                Marketed Rigcount                                           Active Rigcount



Source: The Land Rig Newsletter, Credit Suisse estimates




Insight Onshore                                                                                                                                                                                                                                                                                                                                                                                                                                                                     21
                                                                                                                                                                                                                                                                                                                                                                      16 April 2010



Patterson-UTI Energy

Exhibit 102: PTEN US Land Rigcount                                                                                                                                                                  Exhibit 103: PTEN US Land Footage: Oil vs. Gas
                                                                           PTEN U.S. Land Rigcount                                                                                                                                                  PTEN U.S. Land Footage: Oil vs. Gas
             350                                                                                                                                                                             100%                  3,500,000
                                                                                                                                                                                             90%                   3,000,000
             300
                                                                                                                                                                                             80%
             250                                                                                                                                                                             70%                   2,500,000
  Rigcount




                                                                                                                                                                                                     Footage
             200                                                                                                                                                                             60%                   2,000,000
                                                                                                                                                                                             50%
             150                                                                                                                                                                                                   1,500,000
                                                                                                                                                                                             40%
             100                                                                                                                                                                             30%                   1,000,000
                                                                                                                                                                                             20%                    500,000
              50
                                                                                                                                                                                             10%
                  0                                                                                                                                                                          0%                                    0




                                                                                                                                                                                                                                           Jun-05

                                                                                                                                                                                                                                           Dec-05

                                                                                                                                                                                                                                           Jun-06

                                                                                                                                                                                                                                           Dec-06

                                                                                                                                                                                                                                           Jun-07

                                                                                                                                                                                                                                           Dec-07

                                                                                                                                                                                                                                           Jun-08

                                                                                                                                                                                                                                           Dec-08

                                                                                                                                                                                                                                           Jun-09

                                                                                                                                                                                                                                           Dec-09
                                                                                                                                                                                                                                           Sep-05

                                                                                                                                                                                                                                           Mar-06

                                                                                                                                                                                                                                           Sep-06

                                                                                                                                                                                                                                           Mar-07

                                                                                                                                                                                                                                           Sep-07

                                                                                                                                                                                                                                           Mar-08

                                                                                                                                                                                                                                           Sep-08

                                                                                                                                                                                                                                           Mar-09

                                                                                                                                                                                                                                           Sep-09

                                                                                                                                                                                                                                           Mar-10
                      Jun-05

                      Dec-05

                      Jun-06

                      Dec-06

                      Jun-07

                      Dec-07

                      Jun-08

                      Dec-08

                      Jun-09

                      Dec-09
                      Sep-05

                      Mar-06

                      Sep-06

                      Mar-07

                      Sep-07

                      Mar-08

                      Sep-08

                      Mar-09

                      Sep-09

                      Mar-10
                           Marketed Rigcount                                                   Active Rigcount                                           Marketed Utilization                                                                                                     Gas Footage                                 Oil Footage

Exhibit 104: PTEN US Land Rigcount: Vert. vs. Horiz.                                                                                                                                                Exhibit 105: PTEN ArkLaTex Rigcount
                                              PTEN U.S. Land Rigcount: Vertical vs. Horizontal                                                                                                                                                                    PTEN ArkLaTex Rigcount
             250                                                                                                                                                                                                   80
                                                                                                                                                                                                                   70
             200
                                                                                                                                                                                                                   60
  Rigcount




                                                                                                                                                                                                       Rigcount
             150                                                                                                                                                                                                   50
                                                                                                                                                                                                                   40
             100                                                                                                                                                                                                   30
              50                                                                                                                                                                                                   20
                                                                                                                                                                                                                   10
                  0                                                                                                                                                                                                 0
                      Jun-05


                                            Dec-05

                                                              Jun-06


                                                                                    Dec-06

                                                                                                     Jun-07


                                                                                                                         Dec-07


                                                                                                                                             Jun-08


                                                                                                                                                                Dec-08

                                                                                                                                                                         Jun-09


                                                                                                                                                                                           Dec-09
                                 Sep-05

                                            Mar-06


                                                                         Sep-06

                                                                                    Mar-07


                                                                                                               Sep-07


                                                                                                                                   Mar-08


                                                                                                                                                       Sep-08

                                                                                                                                                                Mar-09


                                                                                                                                                                                  Sep-09

                                                                                                                                                                                           Mar-10




                                                                                                                                                                                                                         Jun-05


                                                                                                                                                                                                                                           Dec-05


                                                                                                                                                                                                                                                    Jun-06


                                                                                                                                                                                                                                                                        Dec-06


                                                                                                                                                                                                                                                                                          Jun-07


                                                                                                                                                                                                                                                                                                            Dec-07


                                                                                                                                                                                                                                                                                                                               Jun-08


                                                                                                                                                                                                                                                                                                                                                 Dec-08


                                                                                                                                                                                                                                                                                                                                                                   Jun-09


                                                                                                                                                                                                                                                                                                                                                                                     Dec-09
                                                                                                                                                                                                                                  Sep-05


                                                                                                                                                                                                                                           Mar-06


                                                                                                                                                                                                                                                              Sep-06


                                                                                                                                                                                                                                                                                 Mar-07


                                                                                                                                                                                                                                                                                                   Sep-07


                                                                                                                                                                                                                                                                                                                     Mar-08


                                                                                                                                                                                                                                                                                                                                        Sep-08


                                                                                                                                                                                                                                                                                                                                                          Mar-09


                                                                                                                                                                                                                                                                                                                                                                            Sep-09


                                                                                                                                                                                                                                                                                                                                                                                              Mar-10
                                                            Vertical Rigcount                                    Horizontal Rigcount                                                                                                                   Marketed Rigcount                                    Active Rigcount


Exhibit 106: PTEN Gulf Coast Rigcount                                                                                                                                                               Exhibit 107: PTEN Mid-Continent Rigcount
                                                                          PTEN Gulf Coast Rigcount                                                                                                                                                           PTEN Mid-Continent Rigcount
             30                                                                                                                                                                                                    45
                                                                                                                                                                                                                   40
             25
                                                                                                                                                                                                                   35
             20                                                                                                                                                                                                    30
                                                                                                                                                                                                        Rigcount
  Rigcount




                                                                                                                                                                                                                   25
             15
                                                                                                                                                                                                                   20
             10                                                                                                                                                                                                    15
                                                                                                                                                                                                                   10
              5                                                                                                                                                                                                     5
              0                                                                                                                                                                                                     0
                                                                                                                                                                                                                         Jun-05
                                                                                                                                                                                                                                  Sep-05
                                                                                                                                                                                                                                           Dec-05
                                                                                                                                                                                                                                           Mar-06
                                                                                                                                                                                                                                                    Jun-06
                                                                                                                                                                                                                                                              Sep-06
                                                                                                                                                                                                                                                                        Dec-06
                                                                                                                                                                                                                                                                        Mar-07
                                                                                                                                                                                                                                                                                          Jun-07
                                                                                                                                                                                                                                                                                                   Sep-07
                                                                                                                                                                                                                                                                                                            Dec-07
                                                                                                                                                                                                                                                                                                                     Mar-08
                                                                                                                                                                                                                                                                                                                               Jun-08
                                                                                                                                                                                                                                                                                                                                        Sep-08
                                                                                                                                                                                                                                                                                                                                                 Dec-08
                                                                                                                                                                                                                                                                                                                                                 Mar-09
                                                                                                                                                                                                                                                                                                                                                                   Jun-09
                                                                                                                                                                                                                                                                                                                                                                            Sep-09
                                                                                                                                                                                                                                                                                                                                                                                     Dec-09
                                                                                                                                                                                                                                                                                                                                                                                     Mar-10
                  Jun-05


                                          Dec-05


                                                            Jun-06


                                                                                  Dec-06


                                                                                                    Jun-07


                                                                                                                        Dec-07


                                                                                                                                            Jun-08


                                                                                                                                                                Dec-08


                                                                                                                                                                         Jun-09


                                                                                                                                                                                           Dec-09
                               Sep-05


                                                   Mar-06


                                                                       Sep-06


                                                                                           Mar-07


                                                                                                              Sep-07


                                                                                                                                  Mar-08


                                                                                                                                                      Sep-08


                                                                                                                                                                Mar-09


                                                                                                                                                                                  Sep-09


                                                                                                                                                                                           Mar-10




                                                                     Marketed Rigcount                                  Active Rigcount                                                                                                                  Marketed Rigcount                                  Active Rigcount


Exhibit 108: PTEN Permian Basin Rigcount                                                                                                                                                            Exhibit 109: PTEN Rockies Rigcount
                                                                     PTEN Permian Basin Rigcount                                                                                                                                                                       PTEN Rockies Rigcount
             140                                                                                                                                                                                                   60
             120                                                                                                                                                                                                   50
             100
                                                                                                                                                                                                                   40
  Rigcount




                                                                                                                                                                                                        Rigcount




              80
                                                                                                                                                                                                                   30
              60
              40                                                                                                                                                                                                   20
              20                                                                                                                                                                                                   10
               0                                                                                                                                                                                                     0
                      Jun-05


                                 Dec-05


                                                              Jun-06


                                                                         Dec-06


                                                                                                     Jun-07


                                                                                                                         Dec-07


                                                                                                                                             Jun-08


                                                                                                                                                                Dec-08

                                                                                                                                                                         Jun-09


                                                                                                                                                                                           Dec-09
                                 Sep-05

                                 Mar-06


                                                                         Sep-06

                                                                         Mar-07


                                                                                                               Sep-07

                                                                                                                         Mar-08


                                                                                                                                                       Sep-08

                                                                                                                                                                Mar-09


                                                                                                                                                                                  Sep-09

                                                                                                                                                                                           Mar-10




                                                                                                                                                                                                                         Jun-05

                                                                                                                                                                                                                         Dec-05

                                                                                                                                                                                                                         Jun-06

                                                                                                                                                                                                                         Dec-06

                                                                                                                                                                                                                         Jun-07

                                                                                                                                                                                                                         Dec-07

                                                                                                                                                                                                                         Jun-08

                                                                                                                                                                                                                         Dec-08

                                                                                                                                                                                                                         Jun-09

                                                                                                                                                                                                                         Dec-09
                                                                                                                                                                                                                         Sep-05

                                                                                                                                                                                                                         Mar-06

                                                                                                                                                                                                                         Sep-06

                                                                                                                                                                                                                         Mar-07

                                                                                                                                                                                                                         Sep-07

                                                                                                                                                                                                                         Mar-08

                                                                                                                                                                                                                         Sep-08

                                                                                                                                                                                                                         Mar-09

                                                                                                                                                                                                                         Sep-09

                                                                                                                                                                                                                         Mar-10




                                                                 Marketed Rigcount                                      Active Rigcount                                                                                                                      Marketed Rigcount                               Active Rigcount

Source: The Land Rig Newsletter, Credit Suisse estimates




Insight Onshore                                                                                                                                                                                                                                                                                                                                                                                  22
                                                                                                                                                                                                                                                                                                                                                                                16 April 2010



Pioneer

Exhibit 110: PDC US Land Rigcount                                                                                                                                                                          Exhibit 111: PDC US Land Rigcount: Oil vs. Gas
                                                                          PDC U.S. Land Rigcount
                                                                                                                                                                                                                         700,000                                    PDC U.S. Land Footage: Oil vs. Gas
               80                                                                                                                                                                           100%
               70                                                                                                                                                                           90%                          600,000
                                                                                                                                                                                            80%
               60                                                                                                                                                                                                        500,000
                                                                                                                                                                                            70%
    Rigcount




               50




                                                                                                                                                                                                               Footage
                                                                                                                                                                                            60%                          400,000
               40                                                                                                                                                                           50%
               30                                                                                                                                                                           40%                          300,000
                                                                                                                                                                                            30%                          200,000
               20
                                                                                                                                                                                            20%
               10                                                                                                                                                                           10%                          100,000
                0                                                                                                                                                                           0%                                         0
                      Jun-05




                      Jun-06




                      Jun-07




                      Jun-08




                      Jun-09
                      Sep-05
                      Dec-05
                      Mar-06

                      Sep-06
                      Dec-06
                      Mar-07

                      Sep-07
                      Dec-07
                      Mar-08

                      Sep-08
                      Dec-08
                      Mar-09

                      Sep-09
                      Dec-09
                      Mar-10




                                                                                                                                                                                                                                            Jun-05

                                                                                                                                                                                                                                            Dec-05

                                                                                                                                                                                                                                            Jun-06

                                                                                                                                                                                                                                            Dec-06

                                                                                                                                                                                                                                            Jun-07

                                                                                                                                                                                                                                            Dec-07

                                                                                                                                                                                                                                            Jun-08

                                                                                                                                                                                                                                            Dec-08

                                                                                                                                                                                                                                            Jun-09

                                                                                                                                                                                                                                            Dec-09
                                                                                                                                                                                                                                            Sep-05

                                                                                                                                                                                                                                            Mar-06

                                                                                                                                                                                                                                            Sep-06

                                                                                                                                                                                                                                            Mar-07

                                                                                                                                                                                                                                            Sep-07

                                                                                                                                                                                                                                            Mar-08

                                                                                                                                                                                                                                            Sep-08

                                                                                                                                                                                                                                            Mar-09

                                                                                                                                                                                                                                            Sep-09

                                                                                                                                                                                                                                            Mar-10
                             Marketed Rigcount                                              Active Rigcount                                         Marketed Utilization                                                                                                                Gas Footage                          Oil Footage

Exhibit 112: PDC US Land Rigcount: Vert. vs. Horiz.                                                                                                                                                        Exhibit 113: PDC ArkLaTex Rigcount
                                               PDC U.S. Land Rigcount: Vertical vs. Horizontal                                                                                                                                                                                       PDC ArkLaTex Rigcount
               60                                                                                                                                                                                                        30

               50                                                                                                                                                                                                        25

               40                                                                                                                                                                                                        20
  Rigcount




                                                                                                                                                                                                            Rigcount
               30                                                                                                                                                                                                        15
               20                                                                                                                                                                                                        10
               10                                                                                                                                                                                                         5
                0                                                                                                                                                                                                         0
                    Jun-05


                             Dec-05

                                                        Jun-06


                                                                 Dec-06

                                                                                             Jun-07


                                                                                                      Dec-07


                                                                                                                                  Jun-08


                                                                                                                                                     Dec-08

                                                                                                                                                     Jun-09


                                                                                                                                                                                Dec-09
                             Sep-05

                             Mar-06


                                                                 Sep-06

                                                                 Mar-07


                                                                                                      Sep-07

                                                                                                      Mar-08


                                                                                                                                  Sep-08

                                                                                                                                                     Mar-09


                                                                                                                                                                                Sep-09

                                                                                                                                                                                Mar-10




                                                                                                                                                                                                                              Jun-05


                                                                                                                                                                                                                                                Dec-05


                                                                                                                                                                                                                                                                  Jun-06


                                                                                                                                                                                                                                                                                      Dec-06


                                                                                                                                                                                                                                                                                                        Jun-07


                                                                                                                                                                                                                                                                                                                          Dec-07


                                                                                                                                                                                                                                                                                                                                            Jun-08


                                                                                                                                                                                                                                                                                                                                                              Dec-08


                                                                                                                                                                                                                                                                                                                                                                                Jun-09


                                                                                                                                                                                                                                                                                                                                                                                                  Dec-09
                                                                                                                                                                                                                                       Sep-05


                                                                                                                                                                                                                                                         Mar-06


                                                                                                                                                                                                                                                                            Sep-06


                                                                                                                                                                                                                                                                                               Mar-07


                                                                                                                                                                                                                                                                                                                 Sep-07


                                                                                                                                                                                                                                                                                                                                   Mar-08


                                                                                                                                                                                                                                                                                                                                                     Sep-08


                                                                                                                                                                                                                                                                                                                                                                       Mar-09


                                                                                                                                                                                                                                                                                                                                                                                         Sep-09


                                                                                                                                                                                                                                                                                                                                                                                                           Mar-10
                                                            Vertical Rigcount                                  Horizontal Rigcount                                                                                                                                         Marketed Rigcount                                  Active Rigcount



Exhibit 114: PDC South Texas Rigcount
                                                                     PDC South Texas Rigcount
               18
               16
               14
               12
 Rigcount




               10
                8
                6
                4
                2
                0
                    Jun-05
                             Sep-05
                                      Dec-05
                                               Mar-06
                                                        Jun-06
                                                                 Sep-06
                                                                          Dec-06
                                                                                   Mar-07
                                                                                            Jun-07
                                                                                                      Sep-07
                                                                                                                Dec-07
                                                                                                                         Mar-08
                                                                                                                                  Jun-08
                                                                                                                                           Sep-08
                                                                                                                                                     Dec-08
                                                                                                                                                              Mar-09
                                                                                                                                                                       Jun-09
                                                                                                                                                                                Sep-09
                                                                                                                                                                                         Dec-09
                                                                                                                                                                                                  Mar-10




                                                                   Marketed Rigcount                                     Active Rigcount

Source: The Land Rig Newsletter, Credit Suisse estimates




Insight Onshore                                                                                                                                                                                                                                                                                                                                                                                            23
                                                                                                                                                                                                                                                                                                                                                                                                          16 April 2010



Union

Exhibit 115: UDRL US Land Rigcount                                                                                                                                                                                                                Exhibit 116: UDRL US Land Footage: Oil vs. Gas
                                                                                     UDRL U.S. Land Rigcount                                                                                                                                                                                                UDRL U.S. Land Footage: Oil vs. Gas
              70                                                                                                                                                                                                                        100%                  400,000
                                                                                                                                                                                                                                        90%                   350,000
              60
                                                                                                                                                                                                                                        80%
                                                                                                                                                                                                                                                              300,000
              50                                                                                                                                                                                                                        70%
                                                                                                                                                                                                                                                              250,000
 Rigcount




                                                                                                                                                                                                                                        60%




                                                                                                                                                                                                                                                   Rigcount
              40
                                                                                                                                                                                                                                        50%                   200,000
              30                                                                                                                                                                                                                        40%
                                                                                                                                                                                                                                                              150,000
              20                                                                                                                                                                                                                        30%
                                                                                                                                                                                                                                                              100,000
                                                                                                                                                                                                                                        20%
              10
                                                                                                                                                                                                                                        10%                    50,000
               0                                                                                                                                                                                                                        0%                         0
                   Jan-06


                                         Jul-06
                                                    Oct-06
                                                                Jan-07


                                                                                         Jul-07
                                                                                                       Oct-07
                                                                                                                     Jan-08


                                                                                                                                                 Jul-08
                                                                                                                                                              Oct-08
                                                                                                                                                                          Jan-09


                                                                                                                                                                                                 Jul-09
                                                                                                                                                                                                            Oct-09
                                                                                                                                                                                                                      Jan-10
                             Apr-06




                                                                            Apr-07




                                                                                                                                   Apr-08




                                                                                                                                                                                      Apr-09




                                                                                                                                                                                                                               Apr-10




                                                                                                                                                                                                                                                                        Jan-06
                                                                                                                                                                                                                                                                                 Apr-06
                                                                                                                                                                                                                                                                                          Jul-06
                                                                                                                                                                                                                                                                                                   Oct-06
                                                                                                                                                                                                                                                                                                              Jan-07
                                                                                                                                                                                                                                                                                                                       Apr-07
                                                                                                                                                                                                                                                                                                                                Jul-07
                                                                                                                                                                                                                                                                                                                                         Oct-07
                                                                                                                                                                                                                                                                                                                                                  Jan-08
                                                                                                                                                                                                                                                                                                                                                           Apr-08
                                                                                                                                                                                                                                                                                                                                                                    Jul-08
                                                                                                                                                                                                                                                                                                                                                                             Oct-08
                                                                                                                                                                                                                                                                                                                                                                                      Jan-09
                                                                                                                                                                                                                                                                                                                                                                                               Apr-09
                                                                                                                                                                                                                                                                                                                                                                                                        Jul-09
                                                                                                                                                                                                                                                                                                                                                                                                                 Oct-09
                                                                                                                                                                                                                                                                                                                                                                                                                          Jan-10
                                                                                                                                                                                                                                                                                                                                                                                                                                   Apr-10
                                        Marketed Rigcount                                                  Active Rigcount                                                      Marketed Utilization                                                                                                                   Gas Footage                    Oil Footage

Exhibit 117: UDRL Land Rigcount: Vert. vs. Horiz.
                                                         UDRL U.S. Land Rigcount: Vertical vs. Horizontal
              40

              35

              30

              25
   Rigcount




              20

              15

              10

               5

               0
                    Jan-06


                                           Jul-06
                                                       Oct-06
                                                                   Jan-07


                                                                                              Jul-07
                                                                                                            Oct-07

                                                                                                                              Jan-08


                                                                                                                                                          Jul-08
                                                                                                                                                                       Oct-08
                                                                                                                                                                                   Jan-09


                                                                                                                                                                                                          Jul-09
                                                                                                                                                                                                                     Oct-09
                                                                                                                                                                                                                               Jan-10
                               Apr-06




                                                                                Apr-07




                                                                                                                                            Apr-08




                                                                                                                                                                                               Apr-09




                                                                                                                                                                                                                                         Apr-10




                                                                         Vertical Rigcount                                       Horizontal Rigcount

Source: The Land Rig Newsletter, Credit Suisse estimates




Insight Onshore                                                                                                                                                                                                                                                                                                                                                                                                                    24
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            16 April 2010



Unit

Exhibit 118: UNT US Land Rigcount                                                                                                                                                                                                                                          Exhibit 119: UNT US Land Footage: Oil vs. Gas
                                                                                                      UNT U.S. Land Rigcount                                                                                                                                                                                                                              UNT U.S. Land Footage: Oil vs. Gas
               140                                                                                                                                                                                                                                           100%                      1,600,000
                                                                                                                                                                                                                                                             90%
               120                                                                                                                                                                                                                                                                     1,400,000
                                                                                                                                                                                                                                                             80%
               100                                                                                                                                                                                                                                                                     1,200,000
                                                                                                                                                                                                                                                             70%
                                                                                                                                                                                                                                                                                       1,000,000
  Rigcount




                                                                                                                                                                                                                                                             60%




                                                                                                                                                                                                                                                                            Footage
                80
                                                                                                                                                                                                                                                             50%                        800,000
                60                                                                                                                                                                                                                                           40%
                                                                                                                                                                                                                                                                                        600,000
                40                                                                                                                                                                                                                                           30%
                                                                                                                                                                                                                                                             20%                        400,000
                20
                                                                                                                                                                                                                                                             10%                        200,000
                    0                                                                                                                                                                                                                                        0%
                                                                                                                                                                                                                                                                                                     0
                        Jun-05


                                                 Dec-05


                                                                        Jun-06


                                                                                                 Dec-06


                                                                                                                        Jun-07


                                                                                                                                                 Dec-07


                                                                                                                                                                          Jun-08


                                                                                                                                                                                               Dec-08


                                                                                                                                                                                                                 Jun-09


                                                                                                                                                                                                                                      Dec-09
                                     Sep-05


                                                             Mar-06


                                                                                    Sep-06


                                                                                                            Mar-07


                                                                                                                                     Sep-07


                                                                                                                                                              Mar-08


                                                                                                                                                                                     Sep-08


                                                                                                                                                                                                        Mar-09


                                                                                                                                                                                                                           Sep-09


                                                                                                                                                                                                                                                  Mar-10




                                                                                                                                                                                                                                                                                                              Jun-05


                                                                                                                                                                                                                                                                                                                                     Dec-05


                                                                                                                                                                                                                                                                                                                                                            Jun-06


                                                                                                                                                                                                                                                                                                                                                                               Dec-06


                                                                                                                                                                                                                                                                                                                                                                                                 Jun-07


                                                                                                                                                                                                                                                                                                                                                                                                                      Dec-07


                                                                                                                                                                                                                                                                                                                                                                                                                                               Jun-08


                                                                                                                                                                                                                                                                                                                                                                                                                                                                      Dec-08


                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             Jun-09


                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                Dec-09
                                                                                                                                                                                                                                                                                                                        Sep-05


                                                                                                                                                                                                                                                                                                                                                 Mar-06


                                                                                                                                                                                                                                                                                                                                                                      Sep-06


                                                                                                                                                                                                                                                                                                                                                                                        Mar-07


                                                                                                                                                                                                                                                                                                                                                                                                           Sep-07


                                                                                                                                                                                                                                                                                                                                                                                                                                  Mar-08


                                                                                                                                                                                                                                                                                                                                                                                                                                                         Sep-08


                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  Mar-09


                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       Sep-09


                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         Mar-10
                                                   Marketed Rigcount                                                        Active Rigcount                                                   Marketed Utilization                                                                                                                                                        Gas Footage                          Oil Footage


Exhibit 120: UNT Land Rigcount: Vert. vs. Horiz.                                                                                                                                                                                                                           Exhibit 121: UNT Mid-Continent Rigcount
                                                                      UNT U.S. Land Rigcount: Vertical vs. Horizontal                                                                                                                                                                                                                                              UNT Mid-Continent Rigcount
               120                                                                                                                                                                                                                                                                     90
                                                                                                                                                                                                                                                                                       80
               100
                                                                                                                                                                                                                                                                                       70

                80                                                                                                                                                                                                                                                                     60
                                                                                                                                                                                                                                                                            Rigcount
    Rigcount




                                                                                                                                                                                                                                                                                       50
                60
                                                                                                                                                                                                                                                                                       40

                40                                                                                                                                                                                                                                                                     30
                                                                                                                                                                                                                                                                                       20
                20
                                                                                                                                                                                                                                                                                       10

                    0                                                                                                                                                                                                                                                                   0
                                                                                                                                                                                                                                                                                            Jun-05


                                                                                                                                                                                                                                                                                                                   Dec-05


                                                                                                                                                                                                                                                                                                                                              Jun-06


                                                                                                                                                                                                                                                                                                                                                                     Dec-06


                                                                                                                                                                                                                                                                                                                                                                                        Jun-07


                                                                                                                                                                                                                                                                                                                                                                                                             Dec-07


                                                                                                                                                                                                                                                                                                                                                                                                                                      Jun-08


                                                                                                                                                                                                                                                                                                                                                                                                                                                                  Dec-08


                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           Jun-09


                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                Dec-09
                                                                                                                                                                                                                                                                                                     Sep-05


                                                                                                                                                                                                                                                                                                                                 Mar-06


                                                                                                                                                                                                                                                                                                                                                          Sep-06


                                                                                                                                                                                                                                                                                                                                                                               Mar-07


                                                                                                                                                                                                                                                                                                                                                                                                  Sep-07


                                                                                                                                                                                                                                                                                                                                                                                                                         Mar-08


                                                                                                                                                                                                                                                                                                                                                                                                                                                    Sep-08


                                                                                                                                                                                                                                                                                                                                                                                                                                                                               Mar-09


                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      Sep-09


                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         Mar-10
                         Jun-05


                                                   Dec-05


                                                                           Jun-06


                                                                                                     Dec-06


                                                                                                                                 Jun-07


                                                                                                                                                          Dec-07


                                                                                                                                                                                   Jun-08


                                                                                                                                                                                                        Dec-08


                                                                                                                                                                                                                           Jun-09


                                                                                                                                                                                                                                                    Dec-09
                                      Sep-05


                                                               Mar-06


                                                                                        Sep-06


                                                                                                                 Mar-07


                                                                                                                                              Sep-07


                                                                                                                                                                       Mar-08


                                                                                                                                                                                              Sep-08


                                                                                                                                                                                                                 Mar-09


                                                                                                                                                                                                                                       Sep-09


                                                                                                                                                                                                                                                               Mar-10




                                                                                 Vertical Rigcount                                        Horizontal Rigcount                                                                                                                                                                                                  Marketed Rigcount                              Active Rigcount


Exhibit 122: UNT Rockies Rigcount
                                                                                                          UNT Rockies Rigcount
               35

               30

               25
 Rigcount




               20

               15

               10

                5

                0
                    Jun-05
                                  Sep-05
                                               Dec-05
                                                            Mar-06
                                                                        Jun-06
                                                                                     Sep-06
                                                                                                   Dec-06
                                                                                                               Mar-07
                                                                                                                            Jun-07
                                                                                                                                           Sep-07
                                                                                                                                                          Dec-07
                                                                                                                                                                       Mar-08
                                                                                                                                                                                   Jun-08
                                                                                                                                                                                              Sep-08
                                                                                                                                                                                                        Dec-08
                                                                                                                                                                                                                  Mar-09
                                                                                                                                                                                                                             Jun-09
                                                                                                                                                                                                                                         Sep-09
                                                                                                                                                                                                                                                      Dec-09
                                                                                                                                                                                                                                                                  Mar-10




                                                                                         Marketed Rigcount                                                Active Rigcount


Source: The Land Rig Newsletter, Credit Suisse estimates




Insight Onshore                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           25
                                                                                                       Rigcount                                                                                                     Rigcount                                                                                                                   Rigcount




                                                                                                                                                                                                  40
                                                                                                                                                                                                       60
                                                                                                                                                                                                             80
                                                                                                                                                                                                                  100
                                                                                                                                                                                                                        120
                                                                                                                                                                                                                               140
                                                                                                                                                                                                                                     160
                                                                                                                                                                                                                                            180
                                                                                                                                                                                                                                                  200
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                Rigcount




                                                                                                                                                                                                                                                                                                                      60
                                                                                                                                                                                                                                                                                                                             85
                                                                                                                                                                                                                                                                                                                                    110
                                                                                                                                                                                                                                                                                                                                              135
                                                                                                                                                                                                                                                                                                                                                     160
                                                                                                                                                                                                                                                                                                                                                             185
                                                                                                                                                                                                                                                                                                                                                                       210
                                                                                                                                                                                                                                                                                                                                                                              235




                                                                                       10
                                                                                            18
                                                                                                 26
                                                                                                        34
                                                                                                              42
                                                                                                                       50
                                                                                                                                 58
                                                                                                                                                                                        Apr-08                                                                                                              Apr-08
                                                                             Apr-08
                                                                                                                                                                                        May-08




                                                                                                                                                                                                                                                                                                                                                                                                                                                                        200
                                                                                                                                                                                                                                                                                                                                                                                                                                                                              250
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    300
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          350
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 400
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       450
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             500
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   550
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         600
                                                                             May-08                                                                                                                                                                                                                         May-08
                                                                                                                                                                                        Jun-08                                                                                                              Jun-08                                                                                                                                            Apr-08
                                                                             Jun-08




Insight Onshore
                                                                                                                                                                                         Jul-08                                                                                                              Jul-08                                                                                                                                           May-08
                                                                              Jul-08
                                                                                                                                                                                        Aug-08                                                                                                                                                                                                                                                                Jun-08
                                                                             Aug-08                                                                                                                                                                                                                         Aug-08
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   Unconventional




                                                                                                                                                                                        Sep-08                                                                                                                                                                                                                                                                 Jul-08
                                                                             Sep-08                                                                                                                                                                                                                         Sep-08
                                                                                                                                                                                                                                                                                                                                                                                                                                                              Aug-08
                                                                             Oct-08
                                                                                                                                                                                        Oct-08                                                                                                              Oct-08                                                                                                                                            Sep-08
                                                                             Nov-08                                                                                                     Nov-08                                                                                                              Nov-08                                                                                                                                            Oct-08
                                                                             Dec-08                                                                                                     Dec-08                                                                                                              Dec-08                                                                                                                                            Nov-08
                                                                             Jan-09                                                                                                     Jan-09                                                                                                              Jan-09                                                                                                                                            Dec-08
                                                                             Feb-09                                                                                                     Feb-09                                                                                                              Feb-09                                                                                                                                            Jan-09




                                                                                                                                                                                                                                                                       Exhibit 127: Barnett Rigcount
                                                                             Mar-09                                                                                                     Mar-09                                                                                                              Mar-09                                                                                                                                            Feb-09
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    Total




                                                                                                                                                                                                                                                         Barnett
                                                                                                                                                                                        Apr-09                                                                                                                                                                                                                                                                Mar-09




                                                                                                                                                      Exhibit 129: Woodford Rigcount
                                                                             Apr-09




                                                                                                                                           Woodford
                                                                                                                                                                                                                                                                                                            Apr-09
                                                                             May-09                                                                                                     May-09                                                                                                              May-09                                                                                                                                            Apr-09




                                                                                                                                                                                                                                                                                                                                                                                          Total Tight Sands
                                                                                                                                                                                        Jun-09                                                                                                                                                                                                                                                                May-09
                                                                             Jun-09                                                                                                                                                                                                                         Jun-09
                                                                                                                                                                                         Jul-09                                                                                                                                                                                                                                                               Jun-09
                                                                              Jul-09                                                                                                                                                                                                                         Jul-09
                                                                                                                                                                                        Aug-09                                                                                                                                                                                                                                                                 Jul-09
                                                                             Aug-09                                                                                                                                                                                                                         Aug-09                                                                                                                                            Aug-09
                                                                             Sep-09                                                                                                     Sep-09
                                                                                                                                                                                                                                                                                                            Sep-09                                                                                                                                            Sep-09
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      Exhibit 123: Total Unconventional Rigcount




                                                                             Oct-09                                                                                                     Oct-09
                                                                                                                                                                                                                                                                                                            Oct-09                                                                                                                                            Oct-09
                                                                                                                                                                                        Nov-09
                                                                             Nov-09
                                                                                                                                                                                        Dec-09
                                                                                                                                                                                                                                                                                                            Nov-09                                                                                            Exhibit 125: Total Major Tight Sands Rigcount   Nov-09




                  Source: The Land Rig Newsletter, Credit Suisse estimates
                                                                             Dec-09                                                                                                                                                                                                                         Dec-09                                                                                                                                            Dec-09
                                                                             Jan-10                                                                                                     Jan-10                                                                                                                                                                                                                                                                Jan-10
                                                                                                                                                                                                                                                                                                            Jan-10
                                                                             Feb-10                                                                                                     Feb-10                                                                                                                                                                                                                                                                Feb-10
                                                                                                                                                                                                                                                                                                            Feb-10
                                                                             Mar-10                                                                                                     Mar-10                                                                                                                                                                                                                                                                Mar-10
                                                                                                                                                                                                                                                                                                            Mar-10




                                                                                                                                                                                                                   Rigcount                                                                                                                     Rigcount                                                                                                                                         Rigcount
                                                                                                       Rigcount




                                                                                                                                                                                                 25
                                                                                                                                                                                                        33
                                                                                                                                                                                                                  41
                                                                                                                                                                                                                              49
                                                                                                                                                                                                                                       57
                                                                                                                                                                                                                                                  65
                                                                                                                                                                                                                                                                                                                      125
                                                                                                                                                                                                                                                                                                                            150
                                                                                                                                                                                                                                                                                                                                  175
                                                                                                                                                                                                                                                                                                                                        200
                                                                                                                                                                                                                                                                                                                                              225
                                                                                                                                                                                                                                                                                                                                                    250
                                                                                                                                                                                                                                                                                                                                                           275
                                                                                                                                                                                                                                                                                                                                                                 300
                                                                                                                                                                                                                                                                                                                                                                       325
                                                                                                                                                                                                                                                                                                                                                                             350
                                                                                                                                                                                                                                                                                                                                                                                    375
                                                                                                                                                                                                                                                                                                                                                                                                                                                                         0
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          10
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             20
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               30




                                                                                                                                                                                       Apr-08




                                                                                       0
                                                                                            5
                                                                                                  10
                                                                                                         15
                                                                                                                  20
                                                                                                                            25
                                                                                                                                      30
                                                                                                                                                                                                                                                                                                            Apr-08                                                                                                                                            Apr-08
                                                                             Apr-08                                                                                                    May-08
                                                                                                                                                                                                                                                                                                            May-08                                                                                                                                            May-08
                                                                             May-08                                                                                                    Jun-08                                                                                                               Jun-08                                                                                                                                            Jun-08
                                                                             Jun-08                                                                                                     Jul-08                                                                                                               Jul-08                                                                                                                                            Jul-08
                                                                              Jul-08                                                                                                   Aug-08                                                                                                               Aug-08                                                                                                                                            Aug-08
                                                                             Aug-08                                                                                                    Sep-08                                                                                                               Sep-08                                                                                                                                            Sep-08
                                                                             Sep-08                                                                                                    Oct-08                                                                                                               Oct-08                                                                                                                                            Oct-08
                                                                             Oct-08                                                                                                    Nov-08                                                                                                               Nov-08                                                                                                                                            Nov-08
                                                                             Nov-08                                                                                                    Dec-08                                                                                                               Dec-08                                                                                                                                            Dec-08
                                                                             Dec-08
                                                                                                                                                                                       Jan-09                                                                                                               Jan-09                                                                                                                                            Jan-09
                                                                             Jan-09
                                                                                                                                                                                       Feb-09                                                                                                               Feb-09                                                                                                                                            Feb-09
                                                                             Feb-09
                                                                                                                                                                                       Mar-09                                                                                                               Mar-09                                                                                                                                            Mar-09
                                                                             Mar-09




                                                                                                                                                      Exhibit 130: DJ Basin Rigcount
                                                                                                                                                                                       Apr-09




                                                                                                                                           DJ Basin
                                                                                                                                                                                                                                                                                                            Apr-09                                                                                                                                            Apr-09
                                                                                                                                                                                                                                                        Fayetteville

                                                                             Apr-09
                                                                                                                                                                                                                                                                                                                                                                                          Total Shales




                                                                                                                                                                                                                                                                       Exhibit 128: Fayetteville Rigcount


                                                                                                                                                                                       May-09
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    Total Major CBM




                                                                             May-09                                                                                                                                                                                                                         May-09                                                                                                                                            May-09
                                                                             Jun-09                                                                                                    Jun-09                                                                                                               Jun-09                                                                                                                                            Jun-09
                                                                                                                                                                                        Jul-09                                                                                                               Jul-09                                                                                                                                            Jul-09
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      Exhibit 124: Total Major CBM Rigcount




                                                                              Jul-09
                                                                                                                                                                                       Aug-09                                                                                                               Aug-09                                                                                                                                            Aug-09
                                                                                                                                                                                                                                                                                                                                                                                                              Exhibit 126: Total Major Shales Rigcount




                                                                             Aug-09
                                                                             Sep-09                                                                                                    Sep-09                                                                                                               Sep-09                                                                                                                                            Sep-09
                                                                             Oct-09                                                                                                    Oct-09                                                                                                               Oct-09                                                                                                                                            Oct-09
                                                                             Nov-09                                                                                                    Nov-09                                                                                                               Nov-09                                                                                                                                            Nov-09
                                                                             Dec-09                                                                                                    Dec-09                                                                                                               Dec-09                                                                                                                                            Dec-09
                                                                             Jan-10                                                                                                    Jan-10                                                                                                               Jan-10                                                                                                                                            Jan-10
                                                                             Feb-10                                                                                                    Feb-10                                                                                                               Feb-10                                                                                                                                            Feb-10
                                                                             Mar-10                                                                                                                                                                                                                                                                                                                                                                           Mar-10
                                                                                                                                                                                       Mar-10                                                                                                               Mar-10




26
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    16 April 2010
                                                                                                          Rigcount                                                                                                  Rigcount
                                                                                                                                                                                                                                                                                                                                     Rigcount
                                                                                                                                                                                                                                                                                                                                                                                                                                                   Rigcount




                                                                                       0
                                                                                           10
                                                                                                20
                                                                                                     30
                                                                                                          40
                                                                                                               50
                                                                                                                     60
                                                                                                                          70
                                                                                                                               80
                                                                                                                                    90
                                                                                                                                                                                                 0
                                                                                                                                                                                                     10
                                                                                                                                                                                                          20
                                                                                                                                                                                                               30
                                                                                                                                                                                                                    40
                                                                                                                                                                                                                           50
                                                                                                                                                                                                                                60
                                                                                                                                                                                                                                     70
                                                                                                                                                                                                                                            80
                                                                                                                                                                                                                                                 90
                                                                                                                                                                                                                                                                                                                   0
                                                                                                                                                                                                                                                                                                                           5
                                                                                                                                                                                                                                                                                                                                10
                                                                                                                                                                                                                                                                                                                                          15
                                                                                                                                                                                                                                                                                                                                                20
                                                                                                                                                                                                                                                                                                                                                         25
                                                                                                                                                                                                                                                                                                                                                                   30
                                                                             Oct-08
                                                                                                                                                                                       Apr-08




                                                                                                                                                                                                                                                                                                                                                                                                                              0
                                                                                                                                                                                                                                                                                                                                                                                                                                  10
                                                                                                                                                                                                                                                                                                                                                                                                                                        20
                                                                                                                                                                                                                                                                                                                                                                                                                                                  30
                                                                                                                                                                                                                                                                                                                                                                                                                                                        40
                                                                                                                                                                                                                                                                                                                                                                                                                                                             50
                                                                                                                                                                                                                                                                                                                                                                                                                                                                  60
                                                                                                                                                                                                                                                                                                                                                                                                                                                                        70
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 80
                                                                                                                                                                                                                                                                                                         Apr-08
                                                                             Nov-08                                                                                                    May-08                                                                                                                                                                                                                       Apr-08
                                                                                                                                                                                                                                                                                                         May-08
                                                                                                                                                                                       Jun-08                                                                                                                                                                                                                       May-08
                                                                             Dec-08                                                                                                                                                                                                                      Jun-08




Insight Onshore
                                                                                                                                                                                        Jul-08                                                                                                                                                                                                                      Jun-08
                                                                                                                                                                                                                                                                                                          Jul-08
                                                                             Jan-09                                                                                                                                                                                                                                                                                                                                  Jul-08
                                                                                                                                                                                       Aug-08                                                                                                            Aug-08
                                                                                                                                                                                       Sep-08                                                                                                                                                                                                                       Aug-08
                                                                             Feb-09                                                                                                                                                                                                                      Sep-08
                                                                                                                                                                                       Oct-08                                                                                                                                                                                                                       Sep-08
                                                                             Mar-09                                                                                                                                                                                                                      Oct-08
                                                                                                                                                                                       Nov-08                                                                                                                                                                                                                       Oct-08
                                                                                                                                                                                                                                                                                                         Nov-08
                                                                             Apr-09                                                                                                    Dec-08                                                                                                                                                                                                                       Nov-08
                                                                                                                                                                                                                                                                                                         Dec-08                                                                                                     Dec-08
                                                                             May-09                                                                                                    Jan-09                                                                                                            Jan-09                                                                                                     Jan-09
                                                                                                                                                                                       Feb-09                                                                                                            Feb-09
                                                                             Jun-09                                                                                                                                                                                                                                                                                                                                 Feb-09
                                                                                                                                                                                       Mar-09




                                                                                                                                                                                                                                                                     Exhibit 135: Bakken Rigcount
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          Unconventional (Continued)




                                                                                                                                                                                                                                                                                                         Mar-09                                                                                                     Mar-09




                                                                                                                                                                                                                                                       Bakken
                                                                                                                                                                                                                                                                                                                                                                                   Exhibit 133: San Juan Rigcount
                                                                              Jul-09                                                                                                   Apr-09




                                                                                                                                                     Exhibit 137: Marcellus Rigcount
                                                                                                                                         Marcellus
                                                                                                                                                                                                                                                                                                                                                                        San Juan
                                                                                                                                                                                                                                                                                                         Apr-09                                                                                                     Apr-09
                                                                                                                                                                                       May-09                                                                                                            May-09
                                                                             Aug-09                                                                                                                                                                                                                                                                                                                                 May-09
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        Greater Green River




                                                                                                                                                                                       Jun-09                                                                                                            Jun-09
                                                                             Sep-09                                                                                                                                                                                                                                                                                                                                 Jun-09
                                                                                                                                                                                        Jul-09                                                                                                            Jul-09                                                                                                     Jul-09
                                                                             Oct-09                                                                                                    Aug-09                                                                                                            Aug-09                                                                                                     Aug-09
                                                                                                                                                                                       Sep-09
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              Exhibit 131: Greater Green River Rigcount




                                                                             Nov-09                                                                                                                                                                                                                      Sep-09                                                                                                     Sep-09
                                                                                                                                                                                       Oct-09                                                                                                            Oct-09                                                                                                     Oct-09
                                                                             Dec-09                                                                                                    Nov-09                                                                                                            Nov-09                                                                                                     Nov-09
                                                                                                                                                                                       Dec-09




                  Source: The Land Rig Newsletter, Credit Suisse estimates
                                                                             Jan-10                                                                                                                                                                                                                      Dec-09                                                                                                     Dec-09
                                                                                                                                                                                       Jan-10                                                                                                            Jan-10                                                                                                     Jan-10
                                                                             Feb-10
                                                                                                                                                                                       Feb-10                                                                                                            Feb-10                                                                                                     Feb-10
                                                                             Mar-10                                                                                                    Mar-10                                                                                                                                                                                                                       Mar-10
                                                                                                                                                                                                                                                                                                         Mar-10




                                                                                                                                                                                                                    Rigcount                                                                                                         Rigcount                                                                                                      Rigcount




                                                                                                                                                                                                                                                                                                                   0
                                                                                                                                                                                                                                                                                                                       5
                                                                                                                                                                                                                                                                                                                           10
                                                                                                                                                                                                                                                                                                                                15
                                                                                                                                                                                                                                                                                                                                     20
                                                                                                                                                                                                                                                                                                                                          25
                                                                                                                                                                                                                                                                                                                                               30
                                                                                                                                                                                                                                                                                                                                                    35
                                                                                                                                                                                                                                                                                                                                                         40
                                                                                                                                                                                                                                                                                                                                                              45
                                                                                                                                                                                                                                                                                                                                                                   50
                                                                                                                                                                                                                                                                                                                                                                                                                              0
                                                                                                                                                                                                                                                                                                                                                                                                                                  10
                                                                                                                                                                                                                                                                                                                                                                                                                                       20
                                                                                                                                                                                                                                                                                                                                                                                                                                             30
                                                                                                                                                                                                                                                                                                                                                                                                                                                   40
                                                                                                                                                                                                                                                                                                                                                                                                                                                        50
                                                                                                                                                                                                                                                                                                                                                                                                                                                             60
                                                                                                                                                                                                                                                                                                                                                                                                                                                                  70
                                                                                                                                                                                                                                                                                                                                                                                                                                                                       80
                                                                                                                                                                                                                                                                                                                                                                                                                                                                            90
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  100




                                                                                                                                                                                                 0
                                                                                                                                                                                                      20
                                                                                                                                                                                                               40
                                                                                                                                                                                                                      60
                                                                                                                                                                                                                                80
                                                                                                                                                                                                                                      100
                                                                                                                                                                                                                                                 120
                                                                                                                                                                                                                                                                                                         Apr-08
                                                                                                                                                                                       Oct-08                                                                                                            May-08                                                                                                     Apr-08
                                                                                                                                                                                                                                                                                                                                                                                                                    May-08
                                                                                                                                                                                       Nov-08                                                                                                            Jun-08
                                                                                                                                                                                                                                                                                                                                                                                                                    Jun-08
                                                                                                                                                                                                                                                                                                          Jul-08
                                                                                                                                                                                       Dec-08                                                                                                                                                                                                                        Jul-08
                                                                                                                                                                                                                                                                                                         Aug-08
                                                                                                                                                                                       Jan-09                                                                                                                                                                                                                       Aug-08
                                                                                                                                                                                                                                                                                                         Sep-08
                                                                                                                                                                                                                                                                                                                                                                                                                    Sep-08
                                                                                                                                                                                       Feb-09                                                                                                            Oct-08
                                                                                                                                                                                                                                                                                                                                                                                                                    Oct-08
                                                                                                                                                                                       Mar-09                                                                                                            Nov-08
                                                                                                                                                                                                                                                                                                                                                                                                                    Nov-08
                                                                                                                                                                                                                                                                                                         Dec-08
                                                                                                                                                                                       Apr-09                                                                                                                                                                                                                       Dec-08
                                                                                                                                                                                                                                                                                                         Jan-09
                                                                                                                                                                                       May-09                                                                                                                                                                                                                       Jan-09
                                                                                                                                                                                                                                                                                                                                                                                   Exhibit 134: Uinta Rigcount




                                                                                                                                                                                                                                                                                                         Feb-09
                                                                                                                                                                                                                                                                                                                                                                                                                    Feb-09
                                                                                                                                                                                       Jun-09                                                                                                            Mar-09
                                                                                                                                                                                                                                                                                                                                                                                                                    Mar-09
                                                                                                                                                                                                                                                                                                                                                                        Uinta
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              Exhibit 132: Piceance Rigcount




                                                                                                                                                                                                                                                                                                         Apr-09
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        Piceance




                                                                                                                                                                                        Jul-09                                                                                                                                                                                                                      Apr-09
                                                                                                                                                                                                                                                       Haynesville
                                                                                                                                                                                                                                                                     Exhibit 136: Haynesville Rigcount




                                                                                                                                                                                                                                                                                                         May-09                                                                                                     May-09
                                                                                                                                                                                       Aug-09
                                                                                                                                                                                                                                                                                                         Jun-09                                                                                                     Jun-09
                                                                                                                                                                                       Sep-09                                                                                                             Jul-09                                                                                                     Jul-09
                                                                                                                                                                                       Oct-09                                                                                                            Aug-09                                                                                                     Aug-09
                                                                                                                                                                                                                                                                                                         Sep-09                                                                                                     Sep-09
                                                                                                                                                                                       Nov-09
                                                                                                                                                                                                                                                                                                         Oct-09                                                                                                     Oct-09
                                                                                                                                                                                       Dec-09
                                                                                                                                                                                                                                                                                                         Nov-09                                                                                                     Nov-09
                                                                                                                                                                                       Jan-10                                                                                                            Dec-09                                                                                                     Dec-09
                                                                                                                                                                                       Feb-10                                                                                                            Jan-10                                                                                                     Jan-10
                                                                                                                                                                                                                                                                                                         Feb-10                                                                                                     Feb-10
                                                                                                                                                                                       Mar-10
                                                                                                                                                                                                                                                                                                         Mar-10                                                                                                     Mar-10




27
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       16 April 2010
                                                                                                                                              16 April 2010



Companies Mentioned (Price as of 15 Apr 10)
Anadarko Petroleum Corp. (APC, $74.74, OUTPERFORM [V], TP $70.00)
Apache Corp. (APA, $106.67, RESTRICTED [V])
BP (BP.L, 653.00 p, OUTPERFORM, TP 685.00 p, MARKET WEIGHT)
Chesapeake Energy Corp. (CHK, $24.37, UNDERPERFORM [V], TP $26.00)
Chevron Corp. (CVX, $81.59, OUTPERFORM, TP $93.00)
Cimarex Energy (XEC, $64.53)
ConocoPhillips (COP, $57.06, OUTPERFORM, TP $68.00)
Devon Energy Corp (DVN, $66.59, NEUTRAL [V], TP $70.00)
EnCana Corp. (ECA, $31.82, OUTPERFORM [V], TP $39.00)
EOG Resources (EOG, $110.50, UNDERPERFORM [V], TP $88.00)
ExxonMobil Corporation (XOM, $68.26, NEUTRAL, TP $75.00)
Forest Oil (FST, $26.99, OUTPERFORM [V], TP $30.00)
Helmerich & Payne, Inc. (HP, $40.74, NEUTRAL [V], TP $41.00)
Nabors Industries, Ltd. (NBR, $20.06, OUTPERFORM [V], TP $30.00)
Occidental Petroleum (OXY, $86.47, OUTPERFORM [V], TP $83.00)
Oil States International (OIS, $46.82, NEUTRAL [V], TP $45.00)
Patterson-UTI Energy, Inc. (PTEN, $14.66, UNDERPERFORM [V], TP $17.00)
PetroHawk Energy Corp. (HK, $22.94, OUTPERFORM [V], TP $32.00)
Pioneer Drilling Co. (PDC, $7.38)
Pioneer Natural Resources (PXD, $62.39, NEUTRAL [V], TP $47.00)
Precision Drilling Corp (PDS.WI, $7.69)
Quicksilver Resources, Inc. (KWK, $14.72, NEUTRAL [V], TP $17.00)
Range Resources (RRC, $51.04, OUTPERFORM [V], TP $58.00)
SandRidge Energy, Inc. (SD, $7.30, NEUTRAL [V], TP $12.00)
Southwestern Energy Co. (SWN, $41.63)
Ultra Petroleum Corp. (UPL, $47.74, NEUTRAL [V], TP $53.00)
XTO Energy Inc. (XTO, $48.01, NEUTRAL [V], TP $51.00)


                                                        Disclosure Appendix
Important Global Disclosures
I, Arun Jayaram, CFA, certify that (1) the views expressed in this report accurately reflect my personal views about all of the subject companies and
securities and (2) no part of my compensation was, is or will be directly or indirectly related to the specific recommendations or views expressed in
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The analyst(s) responsible for preparing this research report received compensation that is based upon various factors including Credit Suisse's total
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Outperform (O): The stock’s total return is expected to outperform the relevant benchmark* by at least 10-15% (or more, depending on perceived
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Neutral (N): The stock’s total return is expected to be in line with the relevant benchmark* (range of ±10-15%) over the next 12 months.
Underperform (U): The stock’s total return is expected to underperform the relevant benchmark* by 10-15% or more over the next 12 months.
*Relevant benchmark by region: As of 29th May 2009, Australia, New Zealand, U.S. and Canadian ratings are based on (1) a stock’s absolute total
return potential to its current share price and (2) the relative attractiveness of a stock’s total return potential within an analyst’s coverage universe**,
with Outperforms representing the most attractive, Neutrals the less attractive, and Underperforms the least attractive investment opportunities.
Some U.S. and Canadian ratings may fall outside the absolute total return ranges defined above, depending on market conditions and industry
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Analysts’ coverage universe weightings are distinct from analysts’ stock ratings and are based on the expected
performance of an analyst’s coverage universe* versus the relevant broad market benchmark**:
Overweight: Industry expected to outperform the relevant broad market benchmark over the next 12 months.
Market Weight: Industry expected to perform in-line with the relevant broad market benchmark over the next 12 months.



Insight Onshore                                                                                                                                         28
                                                                                                                                                                  16 April 2010


Underweight: Industry expected to underperform the relevant broad market benchmark over the next 12 months.
*An analyst’s coverage universe consists of all companies covered by the analyst within the relevant sector.
**The broad market benchmark is based on the expected return of the local market index (e.g., the S&P 500 in the U.S.) over the next 12 months.

Credit Suisse’s distribution of stock ratings (and banking clients) is:
                                                 Global Ratings Distribution
                        Outperform/Buy*        44%      (60% banking clients)
                        Neutral/Hold*          41%      (61% banking clients)
                        Underperform/Sell*     13%      (56% banking clients)
                        Restricted              2%
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Insight Onshore                                                                                                                                                              29
                                                                                                                                                                     16 April 2010
                                                                                                                                                            Americas/United States
                                                                                                                                                                 Equity Research




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