CONFIDENTIALITY AND NONDISCLOSURE AGREEMENT

CONFIDENTIALITY AND NONDISCLOSURE AGREEMENT This Confidentiality and Nondisclosure Agreement (this “Agreement”) dated as of ____________ is between EnCana Oil & Gas (USA) Inc. (“Disclosing Party”) and _________________________ (“Recipient”). In connection with Recipient’s desire to evaluate the possibility of acquiring the Properties described on the Attached Exhibit A (the “Purposes”), Disclosing Party will furnish certain information to Recipient upon the terms and conditions set forth herein. In consideration of the mutual promises set forth herein, and other good and valuable consideration, the receipt and sufficiency of which are hereby acknowledged, Disclosing Party and Recipient agree as follows: 1. Confidential Information. Disclosing Party will disclose and make available to Recipient certain Confidential Information for Recipient’s use in connection with the Purposes. The term “Confidential Information” as used in this Agreement shall mean all information that Disclosing Party furnishes to Recipient, whether tangible or intangible and in whatever form or medium provided, as well as all information generated by the Recipient or by its Representatives (as defined below) that contains, reflects or is derived from the furnished information. The term “Confidential Information” shall not include information that (a) is in Recipient’s possession prior to disclosure to Recipient, (b) is or becomes known to the public other than as a result of a breach of this Agreement, or (c) becomes available to Recipient on a non-confidential basis from a source other than Disclosing Party, provided that such source is not known to Recipient to be bound by a confidentiality agreement with, or other fiduciary obligations of confidentiality to, Disclosing Party. 2. Use of Confidential Information. Recipient agrees to keep the Confidential Information confidential and to use the Confidential Information solely for the Purposes and for no other purpose. Recipient may disclose the Confidential Information to such of Recipient’s officers, directors, employees, agents, advisors, consultants and representatives of Recipient or of any parent of, subsidiary of, or other entity controlled by or under common control with, Recipient (collectively, “Representatives”) who have a need to have access to such Confidential Information in order for Recipient to carry out the Purposes and who have agreed to be bound by the provisions of this Agreement. Recipient shall be responsible and liable for any use or disclosure of the Confidential Information by such parties in violation of this Agreement. Nothing herein shall be deemed to prevent disclosure of any of the Confidential Information if, in the opinion of Recipient’s legal counsel, such disclosure is required to be made in a judicial, administrative or governmental proceeding pursuant to a subpoena or other applicable order; provided however, Recipient shall give Disclosing Party prompt notice (unless notice is prohibited by order, subpoena or law) before disclosing any of the Confidential Information and, in making such disclosure, Recipient shall disclose only that portion of the Confidential Information required to be disclosed and will use reasonable efforts to obtain assurance that confidential treatment will be accorded the information; provided however, that Recipient shall be under no obligation to seek a protective order. 3. Nondisclosure of this Agreement. Without the prior written consent of Disclosing Party, neither Recipient nor its Representatives shall, directly or indirectly, disclose to any third party the terms and conditions of this Agreement or of the transactions that are the subject of this Agreement. 4. Return of Documents. Recipient agrees to return to Disclosing Party, within 5 business days after a written request by Disclosing Party, all Confidential Information (including copies thereof) which has been delivered or disclosed to Recipient, or which Recipient has obtained, and to destroy all other related Confidential Information, including, without limitation, all information prepared by Recipient or its Representatives utilizing or relating to any portion of the Confidential Information. Upon written request by Disclosing Party, Recipient shall provide a certificate of destruction of the Confidential Information by one of Recipient’s Representatives who has supervised such destruction. 5. No Representation of Accuracy or Completeness. Recipient understands and acknowledges that the Confidential Information is provided by the Disclosing Party without any representation or warranty, express or implied, as to the accuracy or completeness of the information so provided. The Confidential Information is furnished by Disclosing Party as a convenience only and any reliance on or use of the Confidential Information is at Recipient’s sole risk. 6. Legal Remedies. Recipient acknowledges and agrees that, in the event of any breach of this Agreement, Disclosing Party would be irreparably harmed and could not be made whole by monetary damages. Accordingly, it is agreed that, in addition to any other remedy to which it may be entitled at law or in equity, Disclosing Party shall be entitled to seek an injunction, restraining order, specific performance and other forms of equitable relief. 7. Term. The rights and obligations of the parties hereunder shall terminate two years from the effective date hereof. 8. Assignment. A party may not assign, pledge or otherwise transfer its rights or delegate its duties or obligations under this Agreement without the prior written consent of the other party. A party may, however, assign, pledge or otherwise transfer its rights and delegate its duties or obligations under this Agreement without the consent of the other party to a whollyowned affiliate. 9. Governing Law. This Agreement shall be governed by and construed in accordance with the laws of the State of Colorado without giving effect to the conflict of laws provisions thereof. The parties agree that any action or proceeding arising out of or related in any way to this Agreement shall be brought solely in a court of competent jurisdiction sitting in the City and County of Denver, Colorado. The parties hereby irrevocably and unconditionally consent to the jurisdiction of any such court and hereby irrevocably and unconditionally waive any defense of an inconvenient forum to the maintenance of any action or proceeding in any such court, any objection to venue with respect to any such action or proceeding and any right of jurisdiction on account of the place of residence or domicile of any party thereto. The parties hereby irrevocably and unconditionally waive the right to a jury trial in connection with any claim arising out of or related to this Agreement or to the Confidential Information. 10. Entire Agreement. This Agreement constitutes the entire understanding between the parties with respect to the subject matter hereof and supersedes all negotiations, prior discussions or prior agreements and understandings relating to such subject matter. Neither Disclosing Party nor Recipient shall have any obligation or duty to pursue any further agreement or understanding, or to proceed with respect to any additional transaction relating to the Purposes, 2 until a definitive agreement relating thereto has been duly authorized, executed and delivered by the parties. 11. Notices. All notices and other communications required under this Agreement to be in writing shall be addressed to the parties at the addresses or facsimile numbers set forth below each party’s signature, or to such other address or facsimile number of which a party may notify the other party. 12. Validity. In the event that any part of this Agreement is held to be invalid or unenforceable, such part shall be stricken from this Agreement and the remainder of this Agreement shall remain in full force and effect. 13. Miscellaneous. This Agreement may not be altered or amended, nor may any rights hereunder be waived, except by an instrument in writing and executed by the party to be charged with such amendment or waiver. No failure or delay by Disclosing Party in exercising any right, power or privilege hereunder shall operate as a waiver thereof, nor shall any single or partial exercise of any such right, power or privilege preclude any other or further exercise thereof. This Agreement shall be binding upon the parties hereto and their respective permitted successors and assigns. Except for the parties hereto and their permitted successors and assigns, nothing in this Agreement, express or implied, is intended to confer upon any other entity or person any benefits, rights or remedies. This Agreement may be executed in counterparts and shall become operative when each party has executed and delivered at least one counterpart. This Agreement may be delivered by facsimile or similar transmission, and a facsimile or similar transmission evidencing execution shall be effective as a valid and binding agreement between the parties for all purposes. This Agreement has been executed on the dates set forth below to be effective as of the date first set forth above. DISCLOSING PARTY: EnCana Oil & Gas (USA) Inc. RECIPIENT: By_______________________ Name_____________________ Title______________________ Address: 370 17th Street, Suite 1700 Denver, CO 80202 By_________________________ Name_______________________ Title________________________ Address_____________________ ____________________________ Telephone: 303.623.2300 Facsimile: 303.623.9178 Date_______________________ Telephone____________________ Facsimile_____________________ Date_________________________ 3 32N 114W 32N 113W 32N 112W Exhibit A:Green River & Moxa 2009 Divestiture 32N 110W 32N 109W 32N 108W 32N 107W 32N 106W 32N 105W 32N 104W 32N 103W 32N 103W 32N 102W 32N 101W 32N 100W 32N 99W 32N 98W 32N 97W 32N 96W 32N 95W 31N 111W 31N 110W 31N 109W 31N 108W 31N 107W 31N 106W 31N 105W 31N 104W 31N 103W 31N 102W 31N 101W 31N 100W 31N 99W 31N 98W 31N 97W 31N 96W 31N 95W Legend Units EnCana Overrides 32N EnCana Leases Partial Working Interest Prospect 32N 32N 92W 94W 93W EnCana Leases 100% Working Interest Prospect BIRD CANYON BLUE FOREST 32N BRAVO 91W CG ROAD 32N 90W DESOLATION FLATS FIREMAN GOLCONDA 31N 115W 31N 114W 31N 113W 31N 112W 31N 94W 31N 93W MONUMENT BUTTE MESA SAVANNAH WHISKEY BUTTES 31N 92W 31N 31N HAY RESERVOIR 90W 91W LOOKOUT WASH MUD SPRINGS RIVA SIBERIA Big Piney 30N 115W 30N 114W 30N 113W 30N 112W 30N 111W BRAVO 30N 110W 30N 109W 30N 108W 30N 107W 30N 106W 30N 105W 30N 104W 30N 103W 30N 102W 30N 101W 30N 100W 30N 99W 30N 98W 30N 97W 30N 96W 30N 95W 30N 94W CG ROAD 30N 93W FIREMAN GOLCONDA HAY RESERVOIR 30N 92W 30NWAMSUTTER 30N 90W 91W BIRD CANYON BLUE FOREST EAKIN RANCH 29N 115W 29N 114W 29N 113W 29N 112W 29N 111W 29N 110W SUBLETTE 29N 109W 29N 108W 29N 107W 29N 106W 29N 105W 29N 104W 29N 103W 29N 102W 29N 101W 29N 100W 29N 99W 29N 98W 29N 97W FREMONT 29N 96W 29N 95W 29N 94W LOOKOUT WASH MUD SPRINGS 29N RIVA RUBY WAMSUTTER 93W 29N 92W 29N 29N LITTLE MONUMENT BUTTE 90W 91W MESA MONUMENT BUTTE OPAL BENCH LITTLE MESA 28N 115W 28N 114W 28N 113W 28N 112W 28N 111W 28N 110W 28N 109W 28N 108W 28N 107W 28N 106W 28N 105W 28N 104W 28N 103W 28N 102W 28N 101W 28N 100W 28N 99W 28N 98W 28N 97W 28N 96W 28N 95W 28N 94W 28N 93W 28N 92W 28N REYNARD 91W OUTER BLACKS FORK 28N 90W SAVANNAH VERNE VALLEY 27N 115W 27N 114W 27N 113W WAGON SPOKE 27N Bird Canyon 112W 27N 111W 27N 110W 27N 109W 27N 108W 27N 107W 27N 106W 27N 105W 27N 104W 27N 103W 27N 102W 27N 101W 27N 100W HAY RESERVOIR 27N AREA 27N 58,650 Gross acs 98W 99W 38,604 Net acs 36,554 Undeveloped Gross acs 26,829 Undeveloped Net acs WHISKEY BUTTES 27N 97W 27N 96W 27N 95W 27N 94W 27N 93W 27N 92W 27N 91W 27N 90W 26N 115W 25.5N 115W 25N 115W 25.5N 114W 26N 114W 26N 113W 26N 112W 26N 111W 26N 111W 26N 110W 26N Monument Butte 109W 26N 108W 26N 107W 26N 106W 26N 105W 26N 104W 26N 103W 26N 102W 26N 101W 26N 100W 25N 114W 25N 113W 25N 112W 25N 111W 25N 111W 25N 110W 25N 109W MOXA AREA LINCOLN 24N 115W 24N 114W Little Monument Butte 24N 24N 113W 112W Blue Forest 24N 24N 111W 111W 25N 108W 25N 107W 25N 106W 25N 105W 25N 104W 25N 103W 25N 102W 25N 101W 25N 100W Areas Included: 26N --HAY RESERVOIR 99W --BRAVO --MUD SPRINGS --FIREMAN --GOLCONDA --RIVA 25N 99W 26N 98W 26N 97W 26N 96W 26N 95W 26N 94W 26N 93W 26N 92W 26N 91W 26N 90W Golconda 25N 98W Riva 25N 97W 25N 96W 25N 95W 25N 94W 25N 93W 25N 92W 25N 91W 25N 90W 24N 110W 24N Mesa 109W 23N 115W 23N Savannah 23N 114W 113W 23N 112W 23N 111W 23N 111W 23N 110W 23N 109W 22N 115W 22N 114W Little 22N Mesa 113W 22N 112W 22N 22N 111W 111W Whiskey Butte 22N 110W 22N 109W Opal Bench 21N 115W 21N 114W 21N 113W 21N 112W 21N 111W 21N 111W 21N 110W 21N 109W Areas Included: --BIG PINEY --BIRD CANYON --MONUMENT BUTTE 23N 23N --MESA 108W --BLUE FOREST107W --LITTLE MONUMNET BUTTE --SAVANNAH --LITTLE MESA --WHISKEY BUTTES 22N --OPAL BENCH 22N 108W 107W --WAGON SPOKE --REYNARD --VERNE VALLEY --OUTER BLACKS FORK --EAKIN RANCH 21N 108W 21N 107W 141,822 Gross acs 71,836 Net acs 83,220 Undeveloped Gross acs 43,672 Undeveloped Net acs 24N 24N 108W 107W Fireman Mud Springs 24N 106W 24N 105W 24N 104W 24N 103W 24N 102W 24N 101W 24N 100W 24N 99W 24N 98W 24N 97W 24N 96W 24N 95W 24N 94W 24N 93W 24N 92W 24N 91W 24N 90W 23N 106W 23N 105W 23N 104W 23N 103W 23N 102W 23N 101W 23N 100W 23N Bravo 99W 23N 98W 23N 97W 23N 96W 23N 95W 23N 94W 23N 93W 23N 92W 23N 91W 23N 90W Hay Reservoir 22N 106W 22N 105W 22N 104W 22N 103W 22N 102W 22N 101W 22N 100W 22N 99W 22N 98W 22N 97W 22N 96W 22N 95W 22N 94W Siberia 22N 93W 22N Ruby 92W 22N 91W 22N 90W 21N 106W 21N 105W 21N 104W 21N 103W 21N 102W 21N 101W 21N 100W 21N 99W 21N 98W 21N 97W 21N 96W 21N 95W 21N 94W 21N 93W 21N 92W 21N 91W 21N 90W Wagon Spoke 20N 116W 20N 115W Reynard 20N 114W 20N 113W 20N 112W 20N 112W 20N 111W 20N 110W 20N 109W 20N 108W 20N 107W 20N 106W 20N 105W 20N 104W 20N 103W 20N 102W 20N 101W 20N 100W 20N 99W 20N 98W 20N 97W 20N 96W 20N 95W 20NCG Road 94W 20N 93W 20N 92W 20N 91W 19N 116W 19N 115W Verne Valley 19N 114W 19N 113W 19N 112W 19N 112W 19N 111W 19N 110W 19N 109W 19N 108W 19N 107W 19N 106W 19N 105W 19N 104W 19N 103W 19N 102W 19N 101W 19N 100W 19N 99W 19N 98W 19N 97W 19N 96W 19N 95W 19N 94W 19N 93W 19N 92W 19N 91W 18N 116W 18N 115W 18N 114W 18N Outer Blacks Fork 18N 18N 113W 112W 112W 18N 111W 18N 110W 18N 109W 18N 108W 18N 107W 18N 106W 18N 105W 18N 104W 18N 103W 18N 102W 18N 101W 18N 100W 18N 99W 18N 98W 18N 97W 18N 96W 18N 95W 18N 94W Wamsutter 18N 93W 18N 92W 18N 91W 17N 116W 17N 115W 17N 114W 17N 113W Eakin Ranch 17N 112W 17N 112W 17N 111W 17N 110W 17N 109W 17N 108W 17N 107W 17N 106W 17N 105W 17N 104W 17N 103W 17N 102W 17N 101W 16N 116W 16N 16N UINTA 114W 115W SWEETWATER 16N 113W 16N 16N 112W 112W 16N 111W 16N 110W 16N 109W 16N 108W 16N 107W 16N 106W 16N 105W 16N 104W 16N 103W 16N 102W 17N 17N WAMSUTTER AREA 98W 99W 57,586 Gross acs 32,849 Net acs 34,640 Undeveloped Gross acs 21,978 Undeveloped Net acs 16N 16N 16N 16N 16N Areas Included: 101W 99W 100.5W 100W 98W --WAMSUTTER 17N 100W 17N 97W 17N 96W 17N 95W 17N 94W 17N 93W 17N 92W 17N 91W 16N 97W 16N 96W 16N 95W 16N 94W 16N 93W 16N CARBON 92W 16N 91W 15N 116W 15N 115W 15N 114W 15N 113W 15N 15N 112W 112W 15N 111W 15N 110W 15N 109W 15N 108W 15N 107W 15N 107W 0 0 15N 106W 15N 105W 15N 104W 15N 103W 15N 102W --CG ROAD --SIBERIA --RUBY 15N 15N --LOOKOUT WASH 15N 15N 15N 101W 15N 99W 98W 100.5W 100W --MULLIGAN DRAW (Desolation Flats) 97W Mulligan Draw 15N 96W 15N 95W 15N 94W 15N 93W 15N 92W 15N 91W 14N 116W 14N 115W 14N 114W 14N 113W 14N 14N 112W 112W 14N 111W 14N 110W 14N 109W 14N 108W 14N 107W 0 0 14N 106W 14N 105W 14N 105W 14N 104W 14N 103W 14N 102W 14N 101W 14N 100W 14N 99W 14N 98W 14N 97W 14N 96W 14N 95W 14N 94W 14N 93W Lookout Wash 14N 92W 14N 91W 13N 116W 13N 115W 13N 114W 13N 113W 13N 13N 112W 112W 13N 111W 13N 110W 13N 109W 13N 108W 13N 107W 13N 106W 13N 105W 13N 13N 105W105W 13N 104W 13N 103W 13N 102W 13N 101W 13N 100W 13N 99W 13N 98W 13N 97W 13N 96W 13N 95W 13N 94W 13N 93W 13N 92W 13N 91W S:\NR\PF\MB\Projects\Wyoming\GRB\2009_Divest\GreenRiverMoxa_MasterDivestiture2009_REV 09/08/2009