Oil and Gas Drilling and Production

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					                                                       Rules of
         Department of Natural Resources
                 Division 50—Oil and Gas Council
           Chapter 2—Oil and Gas Drilling and Production

    Title                                                                                                             Page
10 CSR 50-2.010          Organization Report ...........................................................................3
10 CSR 50-2.020          Bonds ............................................................................................3
10 CSR 50-2.030          Application for Permit to Drill, Deepen, Plug-Back or Inject .........................3
10 CSR 50-2.040          Drilling and Completion......................................................................5
10 CSR 50-2.050          Samples, Logs and Completion Reports ...................................................6
10 CSR 50-2.060          Plugging and Abandonment..................................................................7
10 CSR 50-2.070          Well Spacing ....................................................................................8
10 CSR 50-2.080          Monthly Reports ...............................................................................9
10 CSR 50-2.090          Disposal of Fluids by Injection ..............................................................9
10 CSR 50-2.100          Fluid Injection Projects .......................................................................9
10 CSR 50-2.110          Special Projects and Research Projects ...................................................10
10 CSR 50-2.120          Gas Storage Operations......................................................................10




    ROBIN CARNAHAN       (3/31/07)                   CODE OF STATE REGULATIONS                                                 1
    Secretary of State
Chapter 2—Oil and Gas Drilling and Production                                                                                     10 CSR 50-2



      Title 10—DEPARTMENT OF                             (1) Prior to commencement of oil or gas             (2) The bond shall be by a corporate surety
        NATURAL RESOURCES                                drilling or operations, the person, firm or         authorized to do business in the state of
     Division 50—Oil and Gas Council                     corporation commencing drilling or opera-           Missouri and shall be submitted on form
     Chapter 2—Oil and Gas Drilling                      tions shall make, or cause to be made, and          OGC-2. In lieu of a bond with a surety, an
              and Production                             file with the state geologist a good and suffi-     applicant may furnish to the council his/her
                                                         cient bond for each well or hole and payable        own personal bond, secured by a certificate
10 CSR 50-2.010 Organization Report                      to the state of Missouri, conditioned for the       of deposit in an amount equal to that of the
                                                         performance of the duty to comply with all          required surety bond. The personal bond
PURPOSE: This rule provides for the filing of            the provisions of the laws of the state of          shall be submitted on form OGC-2A. When
information that identifies those responsible            Missouri and the rules and orders of the Oil
                                                                                                             the bond is filed, the state geologist shall
for oil and gas exploration, producing or                and Gas Council. This bond shall remain in
related industry activities regulated by the                                                                 immediately review the bond and if the bond
                                                         force and effect until plugging of the well or
council. The organization report is required                                                                 is in proper form, the state geologist shall
                                                         hole is approved by the state geologist and is
in order to properly process bonding, well               released by the state geologist, or a new bond      approve the bond with the conditions which
permitting, producing, plugging and other                is filed by a successor in interest and is          may be required by the council or by rule. No
council regulated activities and to make sure            released by the state geologist. Application        drilling or operation shall commence or con-
that the person making application is, in fact,          for release of bond shall be made by letter to      tinue unless there is on file a bond approved
authorized to represent a person, firm or cor-           the state geologist who shall release the bond      by the state geologist.
poration.                                                if the requirements of the law and regulations
                                                         have been met. Bond will be required in the         (3) Personal bonds shall be subjected to the
(1) Prior to start of operations, each person,           following amounts during the entire operation       following conditions:
firm or corporation engaged in oil or gas                of the well:                                           (A) The institution issuing the certificate of
drilling, producing or transporting or engag-                                                                deposit must be insured by the Federal
ing in projects developed for underground                          SINGLE WELL BOND                          Deposit Insurance Corporation (FDIC) or the
storage of hydrocarbons in natural formation                           Depth of Well                         Federal Savings and Loan Insurance
or developed for disposal of water, nonusable            From             To                    Amount       Corporation (FSLIC);
gas or other waste accompanying the produc-                 0'            500'                  $1000           (B) Only automatically renewable certifi-
tion of oil or gas, shall properly execute the            501'           1000'                  $2000        cates of deposit will be accepted; and
prescribed organization report (form OGC-1)              1001'           2000'                  $3000           (C) Any interest on the certificates of
and submit same to the state geologist.                  2001'           5000'                  $4000        deposit shall be made payable to the permit-
Signatures as required on this form must be              5001'          _____                   $5000        tee.
notarized. The report must be filed before                                                     plus $1/
bonding will be approved.                                                                        foot        AUTHORITY: section 259.070, RSMo 1986.*
                                                                                                beyond       Original rule filed Oct. 11, 1966, effective
(2) After any change occurs as to facts stated                                                 5001 feet
in the report as submitted and filed, except                                                                 Oct. 21, 1966. Amended: Filed Sept. 12,
change of ownership, a supplementary report                                                                  1973, effective Sept. 22, 1973. Amended:
                                                         Refer to 10 CSR 50-2.070(1)(G) for non-
shall be filed with the state geologist with                                                                 Filed Sept. 10, 1979, effective Feb. 1, 1980.
                                                         commercial gas well bond amounts.
respect to the change within thirty (30) days                                                                Amended: Filed Sept. 13, 1983, effective
after the effective date of change.                               BLANKET WELL BOND                          Dec. 11, 1983. Amended: Filed May 18,
                                                                       Depth of Well                         1987, effective July 24, 1987. Amended:
(3) Upon change of ownership of any well(s),                                         Number of               Filed Dec. 20, 1988, effective May 25, 1989.
producing or nonproducing, notice shall be                                           Unplugged
given to the state geologist within ten (10)             From       To     Amount    Wells/bond
                                                                                                             *Original authority: 259.070, RSMo 1965, amended 1972,
days after the change of ownership.                                                                          1983, 1987.
                                                          0'        800'   $20,000    50 wells
                                                         801'      1200'   $30,000    15 wells
AUTHORITY: section 259.070, RSMo 1986.*
Original rule filed Oct. 11, 1966, effective                                                                 10 CSR 50-2.030 Application for Permit to
                                                            (A) However, the blanket bond amount
Oct. 21, 1966. Amended: Filed Sept. 12,                                                                      Drill, Deepen, Plug-Back or Inject
                                                         may be increased by the single well bond
1973, effective Sept. 22, 1973. Amended:
                                                         amount (which varies depending on the depth
Filed Sept. 10, 1979, effective Feb. 1, 1980.                                                                PURPOSE: This rule provides for informa-
                                                         of the well—see Single Well Bond table) for
                                                                                                             tion needed for the permitting of drilling of
*Original authority: 259.070, RSMo 1965, amended 1972.   every unplugged well in excess of the maxi-
                                                                                                             new wells or reworking existing wells and
                                                         mum allowable unplugged wells per blanket
                                                         bond as shown in the Blanket Well Bond              establishes procedures for the determination
                                                         table.                                              of their locations (distances from property
10 CSR 50-2.020 Bonds
                                                            (B) All wells permitted prior to the effec-      lines, other producing wells, etc.), according
PURPOSE: Bonding is required of an opera-                tive date of this regulation shall comply with      to classifications of the well(s). It also estab-
tor before commencing oil or gas drilling or             these bonding requirements no later than            lishes procedures to be followed by the state
operations to insure compliance with the pro-            January 1, 1990. All wells permitted on or          geologist in issuing or denying permits and
visions of the rules of the council, specifical-         after the effective date of this regulation shall   legal recourse available to an applicant in
ly with reference to the proper plugging for             comply with the previously mentioned bond-          case of denial. The rule further provides for
abandonment of a well(s).                                ing requirements prior to permit issuance.          the revocation of permits by the council after

         ROBIN CARNAHAN          (3/31/07)                          CODE OF STATE REGULATIONS                                                                    3
         Secretary of State
              10 CSR 50-2—DEPARTMENT OF NATURAL RESOURCES                                                        Division 50—Oil and Gas Council



a hearing in the event that state laws or coun-   sible, to four (4) durable objects to provide a   depth of all injection or disposal intervals and
cil rules have been violated, or if fraud, mis-   permanent location of the well. Durable           their formation names; lithology of all for-
representation, etc., were used to initially      objects include, but are not restricted to,       mations penetrated; depths of the tops and
obtain a permit.                                  house corners (fully describe), marks on con-     bottoms of all casing and tubing; size and
                                                  crete structures or pavement, marks on ledge      grade of all casing and tubing; type and depth
(1) Prior to commencement of operations,          or bedrock, trees and set monuments. The          of packer; depth, location and type of all
application for a permit must be made with        reference sketch shall show the approximate       cement; depth of all perforations and squeeze
the state geologist on form OGC-3 or OGC-         distance of the well from existing streets or     jobs; and geologic name and depth to bottom
3-I (for injection wells) as prescribed by the    perceived boundary lines shown on the loca-       of all underground sources of drinking water
council. An organization report (form OGC-        tion map. It shall also show the house num-       which may be affected by the injection.
1) and bond (form OGC-2) must be on file in       ber of any houses shown on the sketch along
the office of the state geologist or must         with all street names. Both the location map      (5) The applicant for an injection well(s) shall
accompany the application.                        and the reference sketch shall show a north       publish a notice of application in a newspaper
                                                  arrow and a scale. Form OGC-4 or OGC-4-           of general circulation in the county in which
(2) An accurate well location survey must         I, for injection wells, (see section (3)) must    the proposed injection well(s) will be located.
accompany the application. The plat shall         accompany the application.                        The applicant shall submit a copy of the
show the distance from the two (2) nearest           (A) A well location map conforming to the      newspaper notice to the state geologist before
section lines to the well. The plat of survey     scale and distance requirements specified in      the public hearing or administrative approval
shall show the distance of the well from the      10 CSR 50-2.030(2) along with the geo-            is granted. The notice shall include the name
nearest lease line and from the nearest pro-      graphic position of the well may be used in       and address of applicant, location of pro-
ducing, drilling or abandoned well on the         lieu of a well reference sketch. The geo-         posed well(s), geologic name and depth of
same lease. The geographic coordinates of         graphic coordinates shall be latitude and lon-    injection zone, a description of the need for
the well shall be shown along with the            gitude based on the North American Datum          the injection well(s) and the address of the
method used to obtain the coordinates and         of 1983 (NAD 83) and resolved, at a mini-         office of the state geologist, where additional
statement of positional accuracy of the coor-     mum, to the nearest one-tenth (.10) of a sec-     information may be obtained. There shall be
dinates. The plat of survey shall be prepared     ond: i.e., latitude 38° 42' 54.2" North, lon-     a fifteen (15)-day written comment period
by a Missouri professional land surveyor and      gitude 90° 37' 15.8" West. The coordinates        (comments to be sent to the office of the state
shall meet the current “Minimum Standard          shall have a minimum positional tolerance of
Requirements for Property Boundary                                                                  geologist). If within this period the state geol-
                                                  three (3) meters. Any well that a minimum         ogist determines that a significant degree of
Surveys” defined in 10 CSR 30-2.010. Form         standards survey reveals not to meet the min-
OGC-4 or OGC-4-I, for injection wells, (see                                                         public interest is expressed, or other factors
                                                  imum distance requirements shall not be           indicate the need for a public hearing, the
section (3)) must accompany the application.      approved for completion or production.
A confirmation well and/or additional devel-                                                        state geologist may order a hearing. Public
opment wells may be exempted from a mini-                                                           notice will be provided with a hearing date
                                                  (3) Upon application for an injection well, an
mum standards survey at the discretion of the                                                       set for no sooner than thirty (30) days after
                                                  accurate location plat (form OGC-4-I) must
council. A well location map, as here and                                                           the date of notice. If no public hearing is
                                                  accompany the application. The plat shall be
after described, may be substituted in lieu of    drawn neatly and to scale and shall show the      ordered, the application will be processed
the previously mentioned plat of survey. The      distance of the well from the nearest lease       without further delay. A record will be kept
applicant shall provide a well location map       line and from the two (2) nearest section lines   of all written comments received and the
and well reference sketch or the geographic       to the well. If the well is drilled on acreage    responses to these comments.
position of the well prepared according to the    that has been pooled with other land, distance
specifications in 10 CSR 50-2.030(2)(A).                                                            (6) Upon application, the state geologist may
                                                  to nearest boundary of the pooled acreage
The well location map shall be drawn to a                                                           waive the initial requirement for a minimum
                                                  must also be shown. The plat shall also show
scale of one inch (1") equals one hundred feet                                                      standards survey for noncommercial gas
                                                  the area of review for the applicant well and
(100'), one inch (1") equals two hundred feet     all area of review wells of public record that    wells (wells drilled for the sole purpose of
(200') or one inch (1") equals four hundred       penetrate the injection interval. Descriptions,   furnishing gas for private consumption by the
feet (400'). A copy of the current ownership      of the area of review wells, that penetrate the   owner and not for resale or trade). A permit
map maintained by the county tax assessor         injection interval shall be included on the       application (OGC-3) shall include form
shall be acceptable. The quarter-quarter sec-     back of the form OGC-4-I. These descrip-          which enables the state geologist to deter-
tion, governmental lot, or United States          tions shall include lease name, well number,      mine if minimum distance requirements to
Survey, along with the governmental section,      location, owner, depth, type (oil, gas, etc.),    property or lease boundaries can be met
township and range shall be stated on the well    date spudded, date completed and construc-        before issuing a permit for drilling. If gas
location map. The location map shall show         tion of the wells. Each area of review well       supplies are found to be present in sufficient
the approximate location of the well within       shall be uniquely marked or numbered.             quantities to be utilized, a minimum stan-
the section or quarter section, the approxi-                                                        dards survey and plat of survey or a location
mate distance to the nearest perceived lease      (4) A neat, accurate schematic diagram of the     map showing the geographic coordinates as
line or perceived boundary line and the           applicant injection well(s) and relevant sur-     described in 10 CSR 50-2.030(2)(A) and
names of the owners of the property on which      face equipment shall be submitted on form         conforming to the scale, distance and format
the well is located and all adjoining property    OGC-11 before application will be pro-            requirements specified in 10 CSR 50-
owners. The well reference sketch shall show      cessed. This schematic diagram shall include      2.030(2) of this rule will then be required to
the location of the well and its relationship     the following: configuration of well head;        ensure compliance with distance require-
(bearing and distance preferred), where pos-      total depth and/or plug-back total depth;         ments before any production can be

4                                                            CODE OF STATE REGULATIONS                           (3/31/07)     ROBIN CARNAHAN
                                                                                                                               Secretary of State
Chapter 2—Oil and Gas Drilling and Production                                                                             10 CSR 50-2


initiated. Any well, that a minimum stan-           by the operator have been abandoned and           The term “substantial change or modifica-
dards survey reveals not to meet minimum            have not been plugged in an approved man-         tion” shall mean any change in operation
distance requirements shall not be approved         ner, s/he shall deny the permit.                  which may affect an underground source of
for completion or production of gas.                   (A) Upon denial of a permit, the applicant     drinking water, or otherwise alter the opera-
                                                    may appeal within thirty (30) days of the         tion of the well so that its operation is not
(7) An owner engaged in drilling develop-           notice of the denial to the state council and a   consistent with the existing permit.
ment wells to depths no greater than eight          hearing shall be held as provided by law.
hundred feet (800') may request that the state         (B) After the hearing the council shall        AUTHORITY: sections 259.060, 259.070,
geologist approve prospective well locations        either issue the permit or deny the permit. If    259.080 and 259.140, RSMo 2000.* Original
on a blanket basis on a single lease. The           the council denies the permit an appeal may       rule filed Oct. 11, 1966, effective Oct. 21,
request shall be accompanied by a plat of the       be taken to the circuit court as provided by      1966. Amended: Filed Sept. 12, 1973, effec-
entire lease, indicating the location of and        law.                                              tive Sept. 22, 1973. Amended: Filed Dec. 12,
identifying by number all wells which have                                                            1975, effective Dec. 22, 1975. Amended:
been drilled or are proposed, using appropri-       (10) Permits may be revoked by the council        Filed Sept. 12, 1978, effective Feb. 1, 1979.
ate symbols to distinguish between them; the        upon a finding after a hearing as provided by     Amended: Filed Oct. 14, 1981, effective Feb.
plat shall conform to the scale and distance        law that any provision of the law, rules or       11, 1982. Amended: Filed Dec. 15, 1986,
requirements specified in section (2) of this       conditions of the permit have been violated or    effective April 11, 1987. Amended: Filed
rule. In the event the state geologist approves     that any fraud, deceit or misrepresentation       Sept. 15, 2006, effective April 30, 2007.
the blanket requests, the approved locations        was made to obtain the approval of the per-
                                                    mit. Appeals of any decision of the council       *Original authority: 259.060, RSMo 1965, amended
may be drilled in the owner’s order of prefer-                                                        1972; 259.070, RSMo 1965, amended 1972, 1983, 1987,
ence, provided that a permit application            may be taken as provided by law.                  1993, 1995; 259.080, RSMo 1965, amended 1972; and
(OGC-3) for each well commenced shall be                                                              259.140, RSMo 1965.
sent to the state geologist within twenty-four      (11) Permits are not transferable to any other
(24) hours after the commencement of                person, firm or corporation or to any other
drilling of each well.                              location.                                         10 CSR 50-2.040 Drilling and Completion
                                                    (12) Unless operations to drill a single well     PURPOSE: One of the important functions of
(8) An owner, company, firm or corporation
                                                    are commenced within one hundred eighty           the council is to prevent produced salt water
engaged in drilling small diameter (less than
                                                    (180) days after date of approval, the approval   from contaminating either surface or under-
five inch (5")) drill holes and core holes for
                                                    to drill will become null and void.               ground fresh water resources. When an oil or
stratigraphic purposes and which will not be
used for the actual recovery of hydrocarbons,                                                         gas well is drilled, the bit usually penetrates
                                                    (13) Before commencing drilling operations,       fresh water strata at relatively shallow
upon written request to the state geologist,        a drilling contractor engaged by an owner or
may be granted permission to file individual                                                          depths. This groundwater is commonly the
                                                    operator for the drilling of a well shall con-    only source of water for irrigation or for ani-
well permit applications (OGC-3) and loca-          firm that an approved drilling permit has been
tion plats (OGC-4) not later than three (3)                                                           mal and human consumption. This rule pro-
                                                    obtained by the owner or operator. The            vides procedures for protecting all fresh
days after the well has been drilled, and fur-      drilling contractor’s confirmation shall con-
ther may obtain a waiver of spacing require-                                                          water and for acceptable safety standards for
                                                    sist of the placement of his/her signature and    wells and surface installations so that the
ments in 10 CSR 50-2.070, provided that—            date of signature, in ink, on the owner’s
   (A) An organization report (OGC-1) has                                                             wild and uncontrolled flow of gusher wells or
                                                    approved permit. A drilling contractor shall      blowouts can be prevented. Plugging of wells
been properly executed and approved accord-         not commence drilling operations unless an
ing to 10 CSR 50-2.010;                                                                               when they are abandoned is consistent with a
                                                    approved permit to drill the well has been        statewide effort to prevent contamination of
   (B) Bonding has been executed and                obtained by the owner or operator and con-        water resources and would also be important
approved according to 10 CSR 50-2.020; and          firmed by the drilling contractor’s signature.    should a given area prove to be productive as
   (C) All other requirements in regard to
                                                                                                      in secondary recovery activity.
drilling, plugging and abandonment are met.         (14) Prior to any substantial change or modi-
                                                                                                         (1) During the drilling of any well, surface
                                                    fication of the physical characteristics or
(9) Upon application for a permit the state                                                           casing will be set at the depth indicated on
                                                    method of operation of any well subject to
geologist shall review the application and,                                                           form OGC-3 or form OGC-3-I which has
                                                    these regulations, or change in the nature of
within fifteen (15) days, determine if the                                                            been approved by the state geologist and will
                                                    wastes disposed of therein, the owner or
application is in proper form and if the                                                              be cemented from the setting depth to the sur-
                                                    operator of the facility shall submit a revised
requirements of the law and the rules are met.                                                        face. Before the bottom plug is drilled or
                                                    application form to the state geologist, iden-
If the state geologist finds that the application                                                     before tests are initiated, the surface casing
                                                    tifying the well name, location, the proposed
is in good form and that the laws are being                                                           will stand cemented for the following periods
                                                    change and a full explanation of the nature of
met s/he shall issue the permit. If s/he deter-                                                       of time: neat cement, for twenty-four (24)
                                                    the change, to the state geologist. No modifi-
                                                                                                      hours; neat cement with one percent (1%)
mines that either the application is not in         cation or change in operation shall be com-
                                                                                                      CaCl2, for twelve (12) hours; neat cement
proper form or that the law of the rules are        menced until the state geologist has reviewed
not being met s/he shall deny the permit. If        and approved the written notification. The        with two percent (2%) CaCl2, for ten (10)
the state geologist finds that the drilling of a    state geologist shall have a minimum of fif-      hours; neat cement with three percent (3%)
well at the proposed site would be an undue         teen (15) days to respond to the notification     CaCl2, for eight (8) hours; and neat cement
risk to the surface or subsurface environ-          and the fifteen (15)-day review period shall      with four percent (4%) CaCl2, for six (6)
ment, s/he shall deny the permit. If the state      be suspended if additional information is nec-    hours. If other additives are to be used in the
geologist determines that prior wells drilled       essary to effectively review the information.     cement, the operator must contact the staff of

        ROBIN CARNAHAN        (3/31/07)                       CODE OF STATE REGULATIONS                                                                5
        Secretary of State
               10 CSR 50-2—DEPARTMENT OF NATURAL RESOURCES                                                           Division 50—Oil and Gas Council



the office of the state geologist for setting      five (5) years and if not returned to active sta-   mechanical integrity within thirty (30) days
times appropriate for that particular cement.      tus within this time the well must be plugged.      after notification, the operator shall again
                                                                                                       notify the state geologist, who may grant an
(2) All wells drilled for oil, gas or injection    (6) All new or newly converted injection            additional thirty (30) days before ordering the
shall be completed with a string(s) of casing      wells shall be required to demonstrate              well to be plugged.
which shall be properly cemented at suffi-         mechanical integrity as defined by 10 CSR
cient depths to protect all water, oil or gas      50-1.030(1)(O) before operation may begin.          (11) The state geologist or an authorized rep-
bearing strata and shall prevent their contents    All wells not permanently plugged and aban-         resentative shall have the authority to sample
from passing into other strata. In the event       doned must demonstrate mechanical integrity
                                                                                                       injected fluids at any time during injection
wells are drilled with cable tools, temporary      at least every five (5) years for the absence of
                                                                                                       operations.
protective casing strings may be left unce-        significant leaks from the outermost casing
mented. The specific casing and cementing          and the absence of significant fluid movement
                                                                                                       (12) The operator is required to provide a
requirements for injection wells shall be          in vertical channels adjacent to the well bore.
based on the depth to the base of the under-                                                           one-fourth inch (1/4") female fitting, with
                                                   Demonstration of the absence of significant
ground source of drinking water, the nature of     leaks shall utilize at least one (1) of the fol-    cut-off valve, to the tubing to all wells drilled
the injected fluids and the hydraulic relation-    lowing procedures: A pressure test with liq-        and completed as injection wells after the
ship between the injection zone and the base       uid or gas, monitoring of annulus pressure in       State Underground Injection Control Pro-
of the underground source of drinking water.       wells injecting at a positive pressure follow-      gram is promulgated, so the injection pres-
                                                   ing an initial pressure test or any other test(s)   sure being used can be monitored by an
(3) In certain instances, 10 CSR 50-2.040(3)       that the state geologist considers effective.       authorized representative(s) of the state geol-
shall modify 10 CSR 50-2.040(1) as follows:        Demonstration of the absence of significant         ogist. For wells that were injecting prior to
In wells drilled to producing formations at a      fluid movement in vertical channels adjacent        promulgation of the State Underground
depth of no greater than eight hundred feet        to the well bore shall utilize at least two (2)     Injection Control Program, the female fitting
(800'), the state geologist may approve            of the following procedures: Cementing              need not be added until the well is tested for
owner’s request to set a single casing string      records (reviewed only once for the life of the     mechanical integrity.
and to cement the string by placing sufficient     well), tracer surveys, noise logs, temperature
cement to fill annular space no less than          surveys or any other test(s) that the state geol-   AUTHORITY: sections 259.060 and 259.070,
approximately forty feet (40') above the top       ogist considers effective.                          RSMo 2000.* Original rule filed Oct. 11,
of the producing horizon.
                                                                                                       1966, effective Oct. 21, 1966. Amended:
                                                   (7) A maximum injection pressure for injec-
(4) During drilling and following completion                                                           Filed Sept. 12, 1973, effective Sept. 22,
                                                   tion wells shall be established by the state
of wells, surface well and producing installa-     geologist so that the pressure in the injection     1973. Amended: Filed Oct. 14, 1981, effec-
tions shall conform to accepted safety stan-       zone during injection does not initiate new         tive Feb. 11, 1982. Amended: Filed Aug. 11,
dards.                                             fractures or propagate existing fractures in        1986, effective Oct. 27, 1986.
                                                   the confining zone. The injection pressure
(5) Whenever operations shall cease for a          also should not cause the injected fluid to         *Original authority: 259.060, RSMo 1965, amended 1972
period of ninety (90) days on any well, the                                                            and 259.070, RSMo 1965, amended 1972, 1983.
                                                   migrate into an underground source of drink-
owner or operator of the well shall give           ing water.
notice to the council and, if the council shall
deem it necessary to prevent the pollution of      (8) All logs and other test data shall be sent
any fresh water strata or supply, shall cause                                                          10 CSR 50-2.050 Samples, Logs and
                                                   to the state geologist before operation may
the well to be temporarily plugged in accor-       begin. The state geologist shall inform the         Completion Reports
dance with the rules of the council and under      operator of a satisfactory or unsatisfactory
its direction. If the operations on any well are                                                       PURPOSE: The objective of exploration is to
                                                   demonstration of mechanical integrity by
not recommenced within a period of six (6)         mail or telephone without delay.                    locate reserves of oil and gas. To obtain this
months after notice has been given, the well                                                           objective, the geologic history and the rela-
shall be deemed a permanently abandoned            (9) In order to insure that all existing injec-     tionships of petroleum generation, migration
well and the owner or operator shall comply        tion wells are properly tested for mechanical       and accumulation must be understood.
with the rules relating to the plugging and        integrity as required by federal regulation, at     Analyses of well cuttings and cores provide
abandonment of wells. Provided, that upon          least one-fifth (1/5) of each operator’s injec-     much information on the composition, age
application to the council prior to the expira-    tion wells drilled in Missouri prior to the         and original environment of deposition of the
tion of the six (6)-month period and for good      State Underground Injection Control Pro-            sediments and on fluid content and charac-
cause shown, the council may extend the            gram must demonstrate mechanical integrity          teristics. Logging tools lowered into bore-
period for an additional six (6) months and in     as defined in 10 CSR 50-2.040(6) each year          holes furnish information concerning the
like manner the council may grant additional       for the first five (5) years of the program. All    electrical, acoustical and radioactive proper-
six (6) month extensions, but the total time of    injection wells, including new wells and
such consecutive extensions shall not exceed                                                           ties of rock-fluid systems throughout drilled
                                                   newly converted wells must demonstrate
two (2) years, unless a mechanical integrity                                                           intervals. This rule provides for filing of these
                                                   mechanical integrity every five (5) years.
test is performed as outlined in 10 CSR 50-                                                            data with the Oil and Gas Council for the
2.040(6) and the well capped at the surface,       (10) If a well cannot demonstrate mechanical        future use of industry and government scien-
before the end of the two (2)-year extension       integrity the operator must cease operation of      tists and is of paramount importance in
period. The council may then permit the well       the well and immediately inform the state           achieving new energy resources and for pro-
to remain inactive status for a maximum of         geologist. If corrective action cannot restore      tection of the environment

6                                                             CODE OF STATE REGULATIONS                              (3/31/07)      ROBIN CARNAHAN
                                                                                                                                    Secretary of State
Chapter 2—Oil and Gas Drilling and Production                                                                                  10 CSR 50-2


(1) Sample cuttings shall be taken at ten foot     AUTHORITY: section 259.070, RSMo 1986.*                  slurry, being no less than sixteen (16) pounds
(10') intervals from the surface to total depth    Original rule filed Oct. 11, 1966, effective             per gallon density. In such event, form OGC-
in all wells drilled for oil or gas, for geolog-   Oct. 21, 1966. Amended: Filed Sept. 12,                  7 shall be forwarded to the state geologist
ical information, for the storage of dry natu-     1973, effective Sept. 22, 1973. Amended:                 within forty-eight (48) hours after comple-
ral gas, or casinghead gas and for the devel-      Filed Oct. 14, 1981, effective Feb. 11, 1982.            tion.
opment of reservoirs for the storage of liquid
                                                   *Original authority: 259.070, RSMo 1965, amended 1972.   (3) Before any well is abandoned, it shall be
petroleum gas. Each sample shall be careful-
ly identified as to well name and depth of                                                                  plugged in a manner which will confine per-
sample and all samples shall be shipped at the                                                              manently all oil, gas and water in the separate
                                                   10 CSR 50-2.060 Plugging and Abandon-                    strata originally containing them. The plug-
owner’s expense to the office of the state         ment
geologist. Samples shall be remitted to the                                                                 ging operation shall be accomplished by the
                                                                                                            proper use of mud-laden fluid, cement and
state geologist at weekly intervals and shall      PURPOSE: This rule provides for the protec-              plugs, used singly or in combination as may
be for his/her study and use and shall be con-     tion of both surface water and groundwater.              be approved by the state geologist.
sidered confidential for a period of one (1)       Drilling muds, oil and water recovered from
year when so requested by the owner in writ-       drilling or testing operations must be dis-              (4) Drill holes in formations which contain
ing.                                               posed of so that pollution of surface soil,              oil or gas or from which oil or gas have been
                                                   ponds and streams is avoided. Fresh water                produced, or that have been used for injec-
(2) During the drilling of, or immediately fol-    strata are protected by casing set below the             tion, shall be plugged by placing cement from
lowing the completion of, any well drilled as      deepest zone that might contain fresh water.             the base of the formation to a point no less
provided in section 10 CSR 50-2.050(1) of          Dry holes must be plugged and abandoned in               than twenty-five feet (25') above the top of
this rule the owner shall advise the state geol-   a manner that subsurface salt water or min-              the formation.
ogist of all intervals that are to be cored, or    eralized water will be confined to the stratum
have been cored, and the cores as are taken        in which it occurs. Similarly, each oil or gas           (5) Appropriate means shall be taken to elim-
shall be preserved, and if requested shall be      stratum penetrated by a well must be perma-              inate movement of surface water into a
forwarded to the state geologist at the owner’s    nently sealed when abandoned to prevent                  plugged well and to prevent pollution of sub-
expense. In the event that it is necessary for     contamination of fresh water supplies and                surface strata.
the owner to utilize all or any portion of the     also to prevent damage by water of any oil or
core to the extent that sufficiently large and     gas stratum capable of producing in paying               (6) Casing shall be cut off below plow depth
representative samples are not available for       quantities. In certain logging procedures, a             except as may be approved by the state geol-
the state, the owner shall furnish the state       radioactive source (in a probe or sonde) is              ogist to allow for the conversion of a well to
geologist with the results of identification or    lowered into the borehole to provide certain             a water supply well for use by a landowner. A
testing procedures. The data shall be consid-      subsurface data useful in exploration for oil            well conversion agreement (form OGC-8) is
ered confidential for a period of one (1) year     and gas. Should this radioactive source con-             available for use by the operator and land-
when so requested by the owner in writing.         tained in a logging tool be lost, certain pro-           owner in these instances.
                                                   cedures are prescribed to prevent the acci-
(3) Within thirty (30) days of the completion      dental or intentional mechanical disintegra-             (7) Within thirty (30) days after the comple-
of a well drilled for oil or gas, for geologic     tion of the radioactive source. Further, there           tion of abandonment, the prescribed plugging
information, for gas storage, for the develop-     are provisions for marking the well site per-            record, form OGC-7, shall be executed and
ment of reservoirs for storage of liquid           manently as a warning that a radioactive                 submitted to the state geologist.
petroleum gas or for any injection purposes        source has been abandoned in the well.
                                                                                                            (8) Before a radioactive source may be aban-
the owner will file with the state geologist                                                                doned, the person, firm or corporation
                                                   (1) Before beginning abandonment work on
properly executed form OGC-5. As an inte-                                                                   proposing the abandonment shall notify the
                                                   any well whether it is a drilling well, or a
gral part of form OGC-5, the owner shall                                                                    state geologist. Wells in which radioactive
                                                   well drilled for oil or gas, for geologic infor-
include complete logs or records of the well,                                                               sources are being abandoned should be
                                                   mation, or for gas storage, or for any other
including drilling time logs, electric logs,                                                                mechanically equipped so as to prevent the
                                                   purpose, notice of intention to abandon the
radioactive logs or other logs that may have       well shall be filed with the state geologist on          accidental or intentional mechanical disinte-
been obtained during mechanical integrity          approved form OGC-6. The notice shall                    gration of the radioactive source.
testing. When more than one (1) type has           include the details of the proposed abandon-                (A) Sources being abandoned in a well
been made, all shall be required. The data         ment procedure and whether any logging tool              should be covered with no less than a fifty
shall be filed with the state geologist for        containing a radioactive source is being aban-           feet (50') standard-color-dyed cement plug
his/her study and use and shall be considered      doned (see section (8) of this rule for radioac-         on top of which a whipstock should be set.
confidential for a period of one (1) year when     tive source abandonment procedure). If nec-              The dye is to alert the re-entry operator prior
so requested by the owner in writing.              essary to avoid rig downtime, oral permission            to encountering the source.
                                                   to abandon dry holes may be obtained by                     (B) In wells where a logging source has
(4) The state geologist may waive the require-     informing the state geologist of proposed                been cemented in place behind a casing string
ments of sampling as set forth in section (1)      abandonment procedures.                                  and above total depth, upon abandonment a
of this rule when a well(s) is/are drilled in an                                                            standard-color-dyed cement plug should be
established field. The state geologist will        (2) In lieu of prior notice and approval by the          placed opposite the abandoned source and to
advise the owners on the returned copy of the      state geologist (form OGC-6) the operator                extend fifty feet (50') above and fifty feet
drilling application when samples will not be      may elect to plug the hole from total depth to           (50’) below with a whipstock placed on top of
required.                                          within plow depth of the surface with cement             the plug.

        ROBIN CARNAHAN       (3/31/07)                         CODE OF STATE REGULATIONS                                                                  7
        Secretary of State
               10 CSR 50-2—DEPARTMENT OF NATURAL RESOURCES                                                          Division 50—Oil and Gas Council



   (C) In the event the operator finds that         resulted in many unnecessary wells being           than a governmental section or, in areas not
after expending a reasonable effort, because        drilled and premature depletion of oil pools.      covered by United States Public Land Surveys
of hole conditions, it is not possible to aban-     As more knowledge of reservoir behavior and        an arbitrarily designated six hundred forty
don the source as prescribed in subsections         the mobility of reservoir fluids increased,        (640)-acre tract. The wells shall not be locat-
(8)(A) or (B) of this rule, s/he shall seek the     spacing of wells on a wider, uniform pattern       ed closer than the approximately two thou-
state geologist’s approval to cease efforts in      became a standard practice. Optimum spac-          sand two hundred feet (2200') to any bound-
this direction and obtain approval for an alter-    ing is considered to be the maximum number         ary line of a governmental section or arbi-
nate abandonment procedure.                         of reservoir acres that can be economically        trarily designated six hundred forty (640)-
                                                    and effectively drained by one well within a       acre tract, nor closer than approximately four
(9) Upon permanent abandonment of any               reasonable time. Stated differently, if one well   thousand five hundred feet (4500') to the
well in which a radioactive source is left in       can be drilled economically on forty acres         nearest well drilling to or capable of produc-
the hole, and after removal of the wellhead, a      and this is the area that can be drained effec-    ing from the same pool on the same lease or
permanent plaque is to be attached to the top       tively, then the spacing or acreage                unit. Should the governmental section or
of the casing left in the hole in a manner that     attributable to the well should not be less        arbitrarily designated tract contain less than
re-entry cannot be accomplished without dis-        than forty acres. The word effective implies       six hundred (600) acres, no well shall be
turbing the plaque. This plaque would serve         that a well so spaced will ultimately recover      drilled thereon except by special order of the
as a visual warning to any person re-entering       as much oil for the forty acres as would be        council; and
the hole that a radioactive source has been         recovered by more than one well. This rule               2. Wells whose gas-producing forma-
abandoned in place in the well. The plaque          provides requirements for, and limitations on,     tions may be reasonably expected to be less
should contain the trefoil radiation symbol         the spacing of wells and for certain excep-        than one thousand five hundred feet (1500')
with a radioactive warning and should be            tions and exemptions thereto.                      in depth may be excepted from the six hun-
constructed of a long-lasting material such as                                                         dred forty (640)-acre spacing requirement at
monel, stainless steel or brass.                    (1) In the absence of an order by the council      the discretion of the council. No well shall be
                                                    setting spacing units for a pool, the following    drilled closer than approximately two hun-
(10) Monies deposited in the Oil and Gas            regulations shall apply:                           dred thirty-four feet (234') from lease,
Remedial Fund may be used by the council to            (A) For the purpose of interpreting dis-        boundary or property line;
plug those oil, gas and injection wells that        tance requirements of this rule, any hole             (D) Spacing and lease-line requirements
have been abandoned and have not been               drilled on a lease shall be considered a well      may be waived, upon application to the state
plugged according to the council’s rules, sub-      until properly abandoned;                          geologist, to protect against offset drainage in
ject to the following guidelines:                      (B) Oil Wells.                                  the event offset wells were drilled prior to the
   (A) Wells covered by a forfeited bond shall            1. Not more than one (1) well drilled for    enactment of chapter 259, RSMo;
receive first priority; and                         oil shall be drilled upon any tract of land           (E) Project Development. Spacing require-
   (B) Other wells shall receive secondary          other than a governmental quarter section or       ments may be waived, at the discretion of the
priority on the basis of their potential for        governmental lot corresponding thereto, or,        council, for all wells required in research or
groundwater contamination or other damage           in areas not covered by United States Public       development projects leading to initiation or
in the order recommended to the council by          Land Surveys, an arbitrarily designated forty      improvement of methods for the economic
the state geologist.                                (40)-acre tract. The well shall not be located     recovery of oil or gas by primary, secondary
                                                    closer than approximately five hundred feet        or tertiary processes (see 10 CSR 50-2.110
AUTHORITY: section 259.060, 259.070 and             (500') to any boundary line of a governmen-        for procedure);
259.190, RSMo 1986.* Original rule filed            tal quarter quarter section, governmental lot         (F) Wells drilled expressly for operation of
Oct. 11, 1966, effective Oct. 21, 1966.             corresponding thereto, or arbitrarily desig-       underground gas storage projects are exempt
Amended: Filed Sept. 12, 1973, effective            nated forty (40)-acre tract, nor closer than       from spacing requirements. No well shall be
Sept. 22, 1973. Amended: Filed Dec. 12,             approximately one thousand feet (1000') to         drilled closer than approximately three hun-
1975, effective Dec. 22, 1975. Amended:             the nearest well drilling to or capable of pro-    dred thirty feet (330') to a lease line without
Filed Sept. 10, 1979, effective Feb. 11, 1980.      ducing from the same pool on the same lease        written authorization of the state geologist;
Amended: Filed Oct. 14, 1981, effective Feb.        or unit. Should the governmental quarter           and
1, 1982. Amended: Filed Sept. 13, 1983,             quarter section, governmental lot, or arbitrar-       (G) Noncommercial gas wells may be
effective Dec. 11, 1983.                            ily designated tract contain less than thirty-     exempted from the spacing requirements of
                                                    six (36) acres, no well shall be drilled there-    paragraph (1)(C)1. of this rule, after approval
*Original authority: 259.060, RSMo 1965, amended
1972; 259.070, RSMo 1965, amended 1972, 1983; and
                                                    on except by special order of the council; and     by the state geologist, where the following
259.190, RSMo 1965, amended 1983.                         2. Wells whose oil-producing formations      procedures and conditions are met:
                                                    may be reasonably expected to be less than               1. In areas where no previous spacing
                                                    one thousand two hundred feet (1200') in           patterns have been established, an owner hav-
10 CSR 50-2.070 Well Spacing                        depth may be excepted from the forty (40)-         ing acquired drilling rights may apply for the
                                                    acre spacing requirement at the discretion of      establishment of a drilling unit containing no
PURPOSE: In the early history of oil drilling       the council. Any well so excepted shall not be     less than three (3) acres, consisting of one (1)
and production, a landowner or lessee could         drilled closer than approximately one hun-         or more contiguous separately owned tracts,
drill as many wells on his/her land as s/he         dred sixty-five feet (165') to lease, boundary     on which a well no deeper than eight hundred
desired and as close to the lease boundaries        or property line;                                  feet (800') in depth may be drilled without
as possible. S/he could also produce oil as            (C) Gas Wells.                                  regard to section lines or property lines; pro-
rapidly as possible from each well to prevent             1. Not more than one (1) well shall be       vided that any well so permitted shall not be
loss of the oil to his/her neighbors. This          drilled for gas upon any tract of land other       drilled closer than one hundred sixty-five feet

8                                                              CODE OF STATE REGULATIONS                            (3/31/07)     ROBIN CARNAHAN
                                                                                                                                  Secretary of State
Chapter 2—Oil and Gas Drilling and Production                                                                                10 CSR 50-2


(165') from the boundary of the drilling unit        (1) Monthly well status and production             *Original authority: 259.060, RSMo 1965, amended 1972
                                                     report, approved form OGC-9, shall be pre-         and 259.070, RSMo 1965, amended 1972.
or a closer distance as is allowed under sub-
section (1)(D) of this rule;                         pared in full and submitted to the state geol-
      2. An applicant for an exemption and           ogist no later than thirty (30) days after the
establishment of a drilling unit under this          end of each calendar month. The status of          10 CSR 50-2.090 Disposal of Fluids by
subsection shall file a plat or well location        each well on a lease is requested on a month-      Injection
map (see 10 CSR 50-2.030(2)) outlining the           ly basis. Production data may be presented by
                                                     each lease unless requested otherwise by the       PURPOSE: In some phases of the producing
area which will be affected by the proposed
                                                     council.                                           life of some reservoirs, large quantities of salt
well, and showing the location of the separate
                                                                                                        water may be produced along with the oil and
tracts along with the names and addresses of
                                                     (2) Monthly report of injected fluids,             gas. Adequate protection of fresh water sup-
the mineral and surface owners of record, as
                                                     approved form OGC-10, shall be prepared in         plies lies in the proper disposal of this salt
well as names and addresses of lessees of any
                                                     full and submitted to the state geologist no       water. Rather than allowing the salt water to
tracts leased for oil and gas. All wells,
                                                     later than thirty (30) days after the end of       flow onto the land surface and into streams
including dry, abandoned, producing or
                                                     each calendar month. The method of dispos-         and rivers, a more satisfactory method of dis-
drilling wells on the proposed unit, and any
                                                     al of all fluids produced from oil wells, gas      posal is the injection of this water into per-
well location for which drilling permits have
                                                     wells, or enhanced recovery operations must        meable subsurface formations that do not
been approved, shall be accurately located
                                                     be clearly stated. Water produced from             contain fresh water. This rule provides that
and designated on the plat. The applicant
                                                     underground gas storage reservoirs that is         details such as quality and quantity of the
shall also file proof that s/he has the right to
                                                     disposed of by injection is included.              water and well construction are to be submit-
take gas from beneath all land in the pro-
                                                                                                        ted to the state geologist for approval to
posed unit; and                                      (3) In the event monthly data requested by         insure that potable water supplies are ade-
      3. Spacing exemptions may be granted           form OGC-9 are available on another format         quately protected.
for good cause upon application to the coun-         as a result of machine printout, the form may
cil; and                                             be accepted in lieu of form OGC-9, provided        Before produced fluid may be disposed of by
      4. A well drilled under the terms of this      a written request, accompanied by a sample         injection into subsurface strata, pertinent data
provision shall be subject to all other applica-     printout, has been submitted to the state geol-    concerning details of the proposed operation,
ble provisions of the rules of the Oil and Gas       ogist for his/her approval.                        forms OGC-3-I, OGC-4-I and OGC-11 and
Council, except that the bonding amount shall                                                           any other information required shall be sub-
be the greater of one dollar and fifty cents         (4) Monthly well status and production             mitted to and approved by the state geologist
($1.50) per well foot or three hundred dollars       reports may be waived by the state geologist       before injection may begin.
($300).                                              upon application in the event that gas pro-
                                                     duction by an owner is for his/her sole and        AUTHORITY: section 259.070, RSMo 1986.*
AUTHORITY: sections 259.060, 259.070 and             private use.                                       Original rule filed Oct. 11, 1966, effective
259.100, RSMo 1986.* Original rule filed
                                                                                                        Oct. 21, 1966. Amended: Filed Sept. 12,
Oct. 11, 1966, effective Oct. 21, 1966.              (5) If mechanical failure of an injection well
                                                                                                        1973, effective Sept. 22, 1973. Amended:
Amended: Filed Sept. 12, 1973, effective             should occur or if other conditions should
                                                                                                        Filed Oct. 14, 1981, effective Feb. 11, 1982.
Sept. 22, 1973. Amended: Filed Sept. 12,             develop that threaten or could threaten to
1978, effective Feb. 1, 1979. Amended: Filed         contaminate an aquifer, the operator or an         *Original authority: 259.070, RSMo 1965, amended 1972.
Dec. 15, 1986, effective April 11, 1987.             authorized representative shall notify the state
Amended: Filed May 18, 1987, effective July          geologist as soon as possible by telephone
24, 1987.                                            and letter. The letter shall be complete and       10 CSR 50-2.100 Fluid Injection Projects
                                                     accurate and shall contain the operator’s esti-
*Original authority: 259.060, RSMo 1965, amended     mate of the nature of the problem(s).              PURPOSE: Water flooding, a type of sec-
1972; 259.070, RSMo 1965 amended 1972, 1983, 1987;
and 259.1000, RSMo 1965, amended 1987.                                                                  ondary recovery, utilizes water, including
                                                     (6) The operator shall be required to monitor      produced salt water by injecting this water
                                                     the injection pressure and injection rate on       into a depleted or nearly depleted oil reser-
                                                     each injection well at least on a monthly          voir to flush out a secondary crop of oil. In
10 CSR 50-2.080 Monthly Reports                      basis, with the results reported annually on       many cases, where the oil is difficult to flush
                                                     form OGC-12, to the state geologist.
PURPOSE: A history of the production of an                                                              with water, certain chemicals are often added
oil or gas well is important in the evaluation       (7) All monitoring reports will be on file at      to increase the efficiency of water as an oil-
of a particular well, lease or pool. Reservoir       the office of the state geologist and will be      recovery agent. This practice helps maintain
characteristics, fluid behavior and produc-          retained and available for at least five (5)       reservoir pressure and increases the ultimate
tion can be used for studies and estimates of        years.                                             amount of oil that can be obtained from a
production on future pools. Use of production                                                           particular reservoir, thereby preventing the
data and reservoir analyses included on              AUTHORITY: sections 259.060 and 259.070,           waste of natural resources. This rule provides
monthly reports can be correlated with recov-        RSMo 1986.* Original rule filed Oct. 11,           for the protection of groundwater by requir-
ery techniques to promote conservation and           1966, effective Oct. 21, 1966. Amended:            ing approval of the state geologist concerning
to prevent waste in the oil industry. This rule      Filed Sept. 12, 1973, effective Sept. 22,          pertinent details of the project and the sub-
provides for the filing of monthly status, pro-      1973. Amended: Filed Dec. 12, 1975, effec-         mittal of monthly reports to the state geolo-
duction and water disposal reports, with cer-        tive Dec. 22, 1975. Amended: Filed Oct. 14,        gist. Also the correlation rights of the owners
tain waivers.                                        1981, effective Feb. 11, 1982.                     are protected by the prior approval of well

        ROBIN CARNAHAN         (3/31/07)                        CODE OF STATE REGULATIONS                                                                   9
        Secretary of State
                10 CSR 50-2—DEPARTMENT OF NATURAL RESOURCES                                                      Division 50—Oil and Gas Council



spacing and lease line requirements by the              pertinent details of the proposed project. It is
state geologist.                                        the stated policy of the council to permit to
                                                        the owner a great measure of latitude in the
(1) Fluid injection projects, not otherwise             spacing of producing wells, injection wells,
classified as research or development projects          observation wells or other wells required for
by the council, may be approved as units                the orderly development and evaluation of the
within themselves. Unit approval may be                 projects. Blanket project approval for drilling
requested by submitting to the state geologist          the wells may be granted at the discretion of
a project report specifying all pertinent               the state geologist, provided the location and
details of the proposed project.                        numbers of the wells are anticipated with a
                                                        reasonable degree of accuracy.
(2) Fluid injection projects shall be governed
by well-spacing and lease-line requirements             (2) No well drilled for the purpose of pro-
under 10 CSR 50-2.070.                                  ducing oil or gas shall be drilled closer than
                                                        approximately one hundred sixty-five feet
(3) Monthly reports shall be submitted in               (165') to a lease line.
accordance with 10 CSR 50-2.080. Addi-
tional monthly operating reports may be                 (3) Reports of the pertinent details of overall
requested in the future by written order of the         project operation shall be submitted quarter-
council.                                                ly to the state geologist for his/her study and
                                                        use and shall be considered as confidential
AUTHORITY: sections 259.060 and 259.070,                for no less than two (2) years, upon written
RSMo 1986.* Original rule filed Oct. 11,                request by the operator.
1966, effective Oct. 21, 1966. Amended:
Filed Sept. 12, 1973, effective Sept. 22,               AUTHORITY: sections 259.060 and 259.070,
1973.                                                   RSMo 1986.* Original rule filed Oct. 11,
                                                        1966, effective Oct. 21, 1966. Amended:
*Original authority: 259.060, RSMo 1965, amended 1972
and 259.070, RSMo 1965, amended 1972.
                                                        Filed Sept. 12, 1973, effective Sept. 22,
                                                        1973.

                                                        *Original authority: 259.060, RSMo 1965, amended 1972
10 CSR 50-2.110 Special Projects and                    and 259.070, RSMo 1965, amended 1972.
Research Projects

PURPOSE: The oil reserves of the state or               10 CSR 50-2.120 Gas Storage Operations
nation at any one time consist of that fraction
of discovered oil that can be economically              PURPOSE: The development of gas storage
recovered using existing technology. Since              operations requires that they be addressed by
optimum recovery is dependent upon engi-                the state. This will ensure protection of the
neering and scientific achievements as well as          state’s underground sources of drinking
economics, any development of new process-              water.
es represents an increase in oil reserves as
well as an improvement in oil conservation              (1) Gas storage operations that inject gas that
practices. By carefully matching recovery               is liquid at standard temperature and pressure
processes to individual reservoirs, it should           shall comply to all rules pertaining to injec-
be possible to greatly extend the potential             tion wells.
that exists in the so-called heavy oil deposits
of western Missouri. This rule permits the              AUTHORITY: Chapter 259, RSMo 1986.*
council to give special consideration to devel-         Original rule filed Oct. 14, 1981, effective
opment of potential resources such as these.            Feb. 11, 1982.

(1) It is the purpose of the council to encour-         *Original authority: Chapter 259, see Missouri Revised
                                                        Statutes.
age development of economic recovery of oil
and gas reserves in the state, in particular the
research and development leading to econom-
ic recovery of so-called heavy oil reserves by
primary, secondary and tertiary recovery
methods. Research or special projects whose
object is to devise and develop methods may
be approved as units complete within them-
selves. Unit approval may be obtained, at the
discretion of the council, by submitting to the
state geologist a project report specifying all


10                                                                  CODE OF STATE REGULATIONS                    (3/31/07)   ROBIN CARNAHAN
                                                                                                                             Secretary of State