BJU Carry and Earning Agreement

THIS BJU CARRY AND EARNING AGREEMENT (this “Agreement”) executed October 31, 2012 but effective as of November 1, 2012 (the “Effective Date”) is between ENCANA OIL & GAS (USA) INC., a Delaware corporation (“Encana”), with an address of 370 17th Street, Suite 1700, Denver, Colorado 80202, and NUCOR ENERGY HOLDINGS INC., a Delaware corporation (“Nucor”), and NUCOR CORPORATION (“Parent”), a Delaware corporation, both with an address of 1915 Rexford Road, Charlotte, North Carolina 28211. Encana and Nucor may be referred to herein, individually, as a “Party” and, collectively, as the “Parties.”

A. Encana owns oil and gas leasehold and mineral interests and may acquire additional interests (collectively, the “Oil and Gas Interests”) in certain lands comprising the Big Jimmy Unit in the Piceance Basin in Garfield and Rio Blanco Counties, Colorado, within the area outlined on Exhibit A attached hereto, from the surface to the base of the Formation (the “Property”).

B. Nucor desires to participate in the development of Encana’s Oil and Gas Interests in the Property by paying a portion of the costs incurred by Encana associated with the drilling, completing, and equipping of Carry Wells in exchange for an undivided fifty percent (50%) of Encana’s interest from the surface to the base of the Formation in and to the wellbores of such Carry Wells, the oil and gas production therefrom, and the tubulars and equipment therein and thereon. Nucor may propose and participate in additional Head’s Up Wells as described below.

C. The Parties desire to enter into this Agreement to govern their rights and obligations with respect to exploration and development of the Property.

IN CONSIDERATION OF ONE HUNDRED DOLLARS ($100) and other good and valuable consideration, the receipt and sufficiency of which are hereby acknowledged, the Parties hereby agree as follows:

For purposes of this Agreement, the following terms and phrases shall have the following meanings:

“AFE” means that Authority for Expenditure to be tendered by Encana to Nucor for each Carry Well or Head’s Up Well reflecting the estimated costs to drill, complete, and equip, or plug and abandon, each Nucor Well.

[***] Certain confidential information contained in this document, marked by bracketed asterisks, has been omitted and filed separately with the Securities and Exchange Commission pursuant to Rule 24b-2 of the Securities Exchange Act of 1934, as amended.

“Affiliate” means, as to the Person specified, any Person controlling, controlled by or under common control with such specified Person. The concept of control, controlling, or controlled as used with respect to any Person means the possession, directly or indirectly, of the power to direct or cause the direction of the management and policies of such Person, whether through the ownership of voting securities, by contract, or otherwise. No Person shall be deemed an Affiliate of any Person solely by reason of the exercise or existence of rights, interests, or remedies created or arising under this Agreement.

“AMI Area” means all of the lands coextensive with the area outlined on Exhibit A attached hereto.

“AMI Interests” means royalty interests, overriding royalty interests, nonparticipating royalty interests, net profits interests, and similar interests in effect during the AMI Term over any of the lands comprising the AMI Area. AMI Interests do not include leasehold or mineral interests.

“Applicable Law” means any applicable statute, law (including common law), regulation, rule, ruling, order, writ, injunction, or decree of or by any Governmental Authority.

“Business Day” means a day, other than Saturday or Sunday, on which commercial banks are open for business with the public in New York, New York.

“Carry Wells” means the oil and gas wells contemplated to be drilled to the Formation on the Property by the Parties under this Agreement pursuant to Section 2.2.

“Change of Control” means (a) with respect to Encana, (i) a sale of all or substantially all of the assets of Encana or (ii) a transaction which results in Encana no longer being an Affiliate of Encana Corporation or any successor to Encana Corporation, and (b) with respect to Nucor, (i) a sale of all or substantially all of the assets of Nucor or (ii) a transaction which results in Nucor no longer being an Affiliate of Nucor Corporation or any successor to Nucor Corporation.

“Commencement of drilling operations” or “commence drilling operations” means, with respect to any Nucor Well, the date that a drilling rig capable of reaching the Formation is rigged up and rotating under power on the Well Location for such well.

“Completed, complete, or completing” with respect to any Nucor Well, means that point in time when a Nucor Well is (i) drilled to a depth sufficient to test the Member; and (ii) either (a) equipped for oil and gas production from the Formation (including, without limitation, setting production casing and installing, if applicable, downhole safety valves, packers, and tubing and an appropriate wellhead / Christmas tree), or (b) plugged and abandoned in accordance with Applicable Law.

“Composite PPI” means Composite Producer Price Index. The Composite PPI is the weighted average of the Producer Price Indices shown on Exhibit B, weighted in the proportions shown on Exhibit B.

“Costs of completing” a Nucor Well means all actual direct costs plus per well drilling well rate overhead charges under the New Operating Agreement incurred in completing such well, including but not limited to, the costs of fracture stimulation, installing lines for frac fluid, and the drilling out of frac plugs with respect to such well, regardless of when such cost is incurred.

“Costs of drilling” a Nucor Well means all actual direct costs plus per well drilling well rate overhead charges under the New Operating Agreement relating to the drilling of such well incurred from and after the date two (2) years prior to the Effective Date hereof (except that the two (2) year requirement shall not apply with respect to the costs of drilling the Pre-Effective Date Carry Wells), including but not limited to, costs of constructing and upgrading access roads, obtaining and preparing the Wellpad, obtaining permits and title opinions, obtaining drilling contractor services and consultants necessary for the drilling of such well, obtaining mud chemicals, pipe and supplies and all other costs and expenses associated with or incurred in moving in, rigging up, drilling, logging and testing so that a decision can be made to either attempt to set pipe and complete such well or to plug and abandon it as a dry hole.

“Costs of equipping” a Nucor Well means all actual direct costs plus per well drilling well rate overhead charges to the extent properly chargeable under the New Operating Agreement incurred in the acquisition and installation of the initial equipment for such well, including but not limited to, the acquisition and installation of wellhead and Wellpad equipment (including but not limited to, associated flowlines, Wellpad separation facilities, Wellpad tanks and storage facilities, measurement/metering equipment, power lines and electrical facilities, and expansions and improvements of such wellhead and Wellpad equipment), regardless of when such cost is incurred.

“Damages” means losses, damages (whether compensatory, punitive, consequential, or special in nature, but excluding a Party’s own exemplary or punitive damages), obligations, liabilities, demands, claims, costs and expenses (including, but not limited to, reasonable attorneys’ fees, expenses, and court costs).

“Environmental Condition” means (a) any release of any Hazardous Materials into the air or into or on the soil, sediments, surface water, or groundwater on, under, or from, or migrating from, the Oil and Gas Interests (or adjoining lands) or any Nucor Well or other well, or (b) any breach, in any material respect, of any Environmental Law.

“Environmental Damages” means Damages arising with respect to any Environmental Condition including, without limitation, those relating to the presence, release, discharge, or threatened discharge of any Hazardous Material in or into the air, surface water, ground water, soil, land surface, or subsurface strata; Damages incurred in investigating and remediating such presence, release, discharge, or threatened discharge; and Damages relating to Hazardous Materials. Environmental Damages include investigatory costs mandated by a Government Authority based upon suspected contamination by Hazardous Materials, and any reasonable consultant and lab fees that arise out of or relate to any actual or suspected Environmental Condition involving the Well Locations or the Nucor Wells or under any Environmental Laws.

“Environmental Laws” means all applicable laws, statutes, regulations, rules, ordinances, codes, licenses, permits, orders, approvals, plans, authorizations, concessions, franchises, and similar items, as amended, of all governmental agencies, departments, commissions, boards, bureaus, or instrumentalities of the United States, and the states and political subdivisions thereof, and all principles of common law, pertaining to the health, safety, or protection of the environment, and/or Damages thereto, including, without limitation, CERCLA, the Clean Air Act, the Federal Water Pollution Control Act, the Resource Conservation and Recovery Act, the Safe Drinking Water Act, the Toxic Substances Control Act, the Hazardous Materials Transportation Act, and the Oil Pollution Act.

“Governmental Authority” means any federal, state, tribal or local government or any court, arbitral tribunal, administrative or regulatory agency or commission or other governmental authority instrumentality or political subdivision thereof.

“Hazardous Materials” means any substance, product, waste, or other material which is, or becomes identified, listed, published, or defined as a hazardous substance, hazardous waste, hazardous material, toxic substance, solid waste or pollutant, or which is otherwise regulated or restricted under any Applicable Law (including any Environmental Law) or permits, licenses, or other Government Authority approvals, including the Comprehensive Environmental Response Compensation and Liability Act (CERCLA), the Superfund Amendments and Reauthorization

[***] This confidential information has been omitted and filed separately with the Securities and Exchange Commission pursuant to a request for confidential treatment.

Act (SARA), the Hazardous Materials Transportation Act, the Resources Conservation and Recovery Act (RCRA), the Toxic Substances Control Act (TSCA), the Clean Water Act and the Oil Pollution Act of 1990 (OPA 90). Without limitation, Hazardous Materials includes hydrocarbons, asbestos, and polychlorinated biphenyls.

“Head’s Up Well” means a well proposed by either Party to be drilled to the Formation on the Oil and Gas Interests in the Property in excess of the number of Carry Wells described in Section 2.2.

“Knowledge,” of a Party shall mean, for purposes of this Agreement, the actual knowledge of the Party at the time the assertion regarding knowledge is made. If the Party is a corporation or other entity other than a natural person, knowledge of such Party shall mean the actual knowledge on the part of the person having authority over the matters to which such knowledge pertains. An individual will be deemed to have actual knowledge of a particular matter if such individual is actually aware of such fact or other matter, or has an awareness or an understanding of such information as would lead a reasonable person to inquire further.

“Nucor Carry,” with respect to any Carry Well, means the difference between fifty percent (50%) of the Individual Nucor Well Cost and the Nucor Cost Share, without consideration of Excess Well Costs.

“Nucor Head’s Up Share” means Nucor’s share of all costs for a Head’s Up Well.

“Nucor Wells” means (i) the Carry Wells to be drilled by the Parties pursuant to this Agreement and (ii) the Head’s Up Wells in which Nucor elects to participate, the number of which shall not exceed the Well Limit, subject to Section 2.4 E.

“NYMEX” means New York Mercantile Exchange, and the NYMEX website is www.cmegroup.com.

[***] This confidential information has been omitted and filed separately with the Securities and Exchange Commission pursuant to a request for confidential treatment.

“Permitted Encumbrances” means (i) lessor’s royalties, overrides and all other burdens of record as of the Effective Date under the Oil and Gas Interests including, without limitation, the Encana overriding royalty interest under Sections 2.1 H (i)(c) and 2.1 H (i)(d) and the Encana royalty interest under Section 2.1 H (iv); (ii) all federal, state, local, and tribal regulatory orders and rules to which the Oil and Gas Interests are presently subject, and the express terms and provisions of the Oil and Gas Interests; (iii) preferential rights to purchase and required Third Party consents to assignments and similar agreements with respect to which (A) waivers or consents have been obtained from the appropriate parties, or (B) notice has been given to the holders of such rights and the appropriate time period for asserting such rights has expired without an exercise of such rights; (iv) liens for taxes or assessments not due or not delinquent as of the Effective Date of this Agreement; (v) all rights to consent by, required notices to, filings with, or other actions by Governmental Authority in connection with the drilling and development of the Oil and Gas Interests that are customarily obtained prior to the commencement of drilling operations; (vi) surface estates, leases, easements, rights-of-way, servitudes, permits, and other rights in respect of surface operations, pipelines, or the like; and easements for pipelines, and other easements and rights-of-way, on, over or in respect of any of the Oil and Gas Interests; (vii) liens of Third Party vendors or service providers over the Oil and Gas Interests relating to obligations not yet due or pursuant to which Encana is not delinquent; (viii) the terms of the royalty payment formula for certain Oil and Gas Interests referred to in the Memorandum of Agreement recorded as Reception Number 767957 in Garfield County, Colorado and as Reception Number 295765 in Rio Blanco County, Colorado; and (ix) title problems commonly encountered in the oil and gas business which would not be considered material by a reasonable and prudent operator in the Colorado Piceance Basin engaged in the business of the ownership, drilling, development, and operation of oil and gas interests with knowledge of all the facts and appreciation of their legal significance.

“Person” means any Governmental Authority or any individual, firm, partnership, limited partnership, corporation, limited liability company, joint venture, trust, unincorporated organization, or other entity or organization.

“Spud Date” means, with respect to any Nucor Well, the date of commencement of setting surface casing with a surface casing rig.

“Third Party” means any Person other than Encana, Nucor, or any of their Affiliates.

“Well Location” means the legal location selected for each Nucor Well on the Oil and Gas Interests in the Property.

“Wellbore Assignment” is defined in Section 2.1 H, and shall cover all depths from the surface to the deepest depth drilled in a Nucor Well.

“Wellpad” means the location of wellheads and associated production facilities for one or more Nucor Wells.

The following Exhibits and Schedules are attached hereto and shall be considered part of this Agreement:

A. Well Locations and Depth. Encana shall act in good faith with regard to the best interests of each of the Parties hereto to determine the optimum Well Locations for all Nucor Wells on the Oil and Gas Interests in the Property based upon its analysis of the anticipated total estimated recovery, Individual Nucor Well Costs, the status of title, and the absence of Environmental Conditions. Prior to commencing drilling operations for any Nucor Well, Encana will present to Nucor its selected Well Location, together with any relevant geological, geophysical, engineering, title and environmental materials, information, and reports, applicable Third Party joint operating agreements and any other Third Party agreements burdening or in effect over the Well Location. All Well Locations shall be at legal locations in accordance with

Applicable Law. Each Carry Well shall be drilled to a depth sufficient to test adequately the Member, or as otherwise agreed by the Parties. Once Encana has commenced drilling operations on any Nucor Well, it shall diligently proceed with the drilling and completing of such well.

B. Periodic Planning Meetings. On or before June 1 of each year, commencing in 2013, the Parties shall meet to discuss drilling plans with respect to the Property, including the number of Carry Wells proposed by Encana and proposed well locations, the number of Head’s Up Wells proposed by each Party (subject to the restrictions in Section 2.4) and proposed well locations, an estimate of Encana’s drilling schedule and Spud Dates, and the estimated costs of the proposed wells. Nucor may not propose a Head’s Up Well on a wellpad from which wells have been drilled for the Existing Drilling Program. Nucor shall not be required to provide the exact bottomhole location of a Head’s Up Well but shall provide at least a proposed section, township and range. The Parties shall consult to determine and approve the Well Locations; provided, however, that if Encana and Nucor are unable to agree on any Well Location, Encana shall determine the Well Location. Encana shall also determine the Spud Dates for Nucor Wells. With respect to Nucor Wells drilled in calendar year 2015 and thereafter, if Encana has proposed fewer than [***] Carry Wells and Nucor has proposed Head’s Up Wells, then at Encana’s election, the first [***] Nucor Wells drilled shall be Carry Wells.

C. AFEs for Nucor Wells. At least thirty (30) days prior to the anticipated Spud Date for a Carry Well and at least ninety (90) days prior to the anticipated Spud Date for a Head’s Up Well, Encana shall issue to Nucor an Authorization for Expenditure (“AFE”) for each Nucor Well (i) identifying each such well as a Carry Well or a Head’s Up Well (together with a specific description of the Well Locations and the survey plat and wellbore diagram for such well), (ii) showing the Nucor Carry (if such well is a Carry Well), (iii) setting forth Encana’s best estimate of the Individual Nucor Well Cost based upon historical costs and current market information and any Third Party bids, (iv) providing the total that Nucor is expected to pay by virtue of each AFE, and (v) setting forth the anticipated Spud Date of the Nucor Well.

D. Proportionate Reduction; Third Party Nonconsent Costs. If Encana owns less than one hundred percent (100%) of the Oil and Gas Interests comprising any Nucor Well, then the interests of Encana and Nucor in such Nucor Well, and in the case of a Carry Well, the Individual Carry Well Cap and Nucor Cost Share, shall be reduced in proportion to the actual Oil and Gas Interest owned by Encana in each such Nucor Well. With respect to a Carry Well or a Head’s Up Well in which both Parties have elected to participate, Nucor and Encana shall bear equally the costs of drilling, completing, and equipping any such well which are attributable to the interest of any Third Party working interest owner who has elected not to participate in the drilling of such well under any applicable Third Party joint operating agreement, or otherwise, and shall be entitled to the corresponding amount of any interest or right to production occurring by reason of the failure of such working interest owner to participate. With respect to a Head’s Up Well in which Encana has elected not to participate, Encana shall not bear any of the costs of drilling, completing, and equipping any such well which are attributable to the interest of a Third Party working interest owner who has elected not to participate in the drilling of such well, but Encana shall be entitled to any interest or right to production with respect to its carried working interest percentage as set forth in Section 4.2. The case of a Force-pooled Owner who does not participate in the drilling of a well is addressed in Section 2.1 H(v).

[***] This confidential information has been omitted and filed separately with the Securities and Exchange Commission pursuant to a request for confidential treatment.

E. Land Costs; Affiliated Services. With respect to each Well Location, during the Term of this Agreement, Nucor shall not bear any acquisition costs or lease bonuses for any Oil and Gas Interests owned by Encana or any of its Affiliates. In addition, Nucor may elect to participate in geologic and geophysical activities and data gathering on or related to the Property, but Nucor shall not be required to participate. If Nucor elects to participate, it shall bear its share of the cost of such activity and shall be provided with any resulting data. If Nucor does not bear its share of the costs of such activity, it shall not be entitled to the data. For the avoidance of doubt, Nucor shall bear its share of the costs of downhole microseismic or other downhole geophysical activity. Furthermore, if Encana (or any of its Affiliates) conducts or provides any of the drilling, completing, or equipping operations, services, equipment, or materials on any Nucor Well, then it shall do so in a prudent and efficient manner, and it shall charge no more than the prevailing market rate for such operations, services, equipment, or materials which would be charged by a Third Party contractor in a bona fide arm’s length transaction. If there are costs related to both Nucor Wells and non-Nucor Wells, such costs shall be pro-rated as applicable. After the Effective Date, if either Party, or any of its Affiliates, acquires any mineral or leasehold interest within the boundaries of the Property, then such interest will be subject to this Agreement. Only Head’s Up Wells shall be proposed and drilled on any mineral or leasehold interest within the boundaries of the Property acquired by Nucor or any of its Affiliates. In any such Head’s Up Well drilled on a Nucor mineral or leasehold interest, Encana will receive from Nucor a wellbore assignment in substantially the form attached hereto as Exhibit C of (i) an undivided fifty percent (50%) interest, (ii) one hundred percent (100%) interest, or (iii) two and one-half percent (2.5%) interest, as applicable, depending upon Encana’s level of participation in any such well.

F. Restriction on Other Drilling Programs. Except for the presently existing drilling program with a Third Party that includes up to one hundred fifty (150) wells to be drilled on the Property (the “Existing Drilling Program”), until the Nucor Wells reach the Well Limit, (i) Encana shall not enter into any other drilling program with any party other than Nucor for the drilling and completion of wells above the base of the Formation on the Property, and (ii) Encana shall not increase the number of wells to be drilled to the Formation on the Property in the Existing Drilling Program to more than one hundred fifty (150) wells. Furthermore, until the Well Limit is reached, Encana shall not drill and complete any well on the Property above the base of the Formation for its own account unless such wells are Head’s Up Wells proposed by Encana in which Nucor elects not to participate.

G. Payment of Nucor Cost Share and Nucor Head’s Up Share. Except as provided in Section 4.2, Nucor shall pay Encana the Nucor Cost Share and Nucor Head’s Up Share by wire transfer to Encana by the fifteenth (15th) day of the month following Nucor’s receipt of a JIB invoice from Encana. If the fifteenth (15th) day of the month falls on a weekend or holiday, then payment shall be made on the preceding Business Day. The proceeds of each payment shall be used by Encana solely and exclusively for Individual Nucor Well Costs. After spudding a Nucor Well, Encana shall drill and complete such Nucor Well with due diligence and in a good and workmanlike manner, in accordance with good oil field practice as a reasonable and prudent Piceance Basin oil and gas operator.

(i) Provided Nucor has paid the Nucor Cost Share and the Nucor Head’s Up Share then due and owing, then on or before the thirtieth (30th) day after the end of each calendar quarter for each Nucor Well drilled and completed as a producer in the prior calendar quarter, Encana shall execute, acknowledge, and deliver to Nucor sufficient counterparts of a wellbore assignment which shall comply with the recordation requirements of any Governmental Authority with whom Encana would appropriately record such wellbore assignment on behalf of Nucor, and which shall otherwise be in substantially the form attached hereto as Exhibit C (the “Wellbore Assignment”). Each Wellbore Assignment shall:

(b) be subject only to those lessor’s royalties, overrides and other burdens of record in existence on the later of the Effective Date or the date of acquisition of the Oil and Gas Interest, those royalties described in (iv) below, or, in the case of overrides owned by Encana or its Affiliates, be subject only to those which are disclosed in Schedule 5.2,

(c) with respect to a Carry Well, assign to Nucor an undivided fifty percent (50%) of Encana’s interest, but not including any royalty or overriding royalty interest owned by Encana, in and to (A) the wellbore of such Carry Well, and (B) all oil and gas production therefrom, and a like interest in the oil and gas leases associated with such wellbore, insofar and only insofar as are sufficient to produce and own an undivided fifty percent (50%) of Encana’s interest in and to the oil, gas, gas condensate, casinghead gas and other liquid and gaseous hydrocarbons produced from the wellbore of the Carry Well, and (C) all casing, tubulars, downhole pumps, fixtures and equipment and wellhead and surface equipment (limited only to equipment for such Carry Well), and

(d) with respect to a Head’s Up Well, assign to Nucor either an undivided fifty percent (50%) of Encana’s interest, or ninety-seven and one-half percent (97.5%) of Encana’s interest if Encana has elected not to participate in such well, as applicable, but in either case not including any royalty or overriding royalty interest owned by Encana, in and to (A) the wellbore of such Head’s Up Well, and (B) all oil and gas production therefrom, and a like interest in the oil and gas leases associated with such wellbore, insofar and only insofar as are sufficient to produce and own an undivided fifty percent (50%), or ninety-seven and one-half percent (97.5%), as applicable, of Encana’s interest in and to the oil, gas, gas condensate, casinghead gas and other liquid and gaseous hydrocarbons produced from the wellbore of the Head’s Up Well in which Encana has elected not to participate, and (C) a like interest in and to all casing, tubulars, downhole pumps, fixtures and equipment and wellhead and surface equipment (limited only to equipment for such Head’s Up Well).

(ii) The Wellbore Assignment shall be in recordable form, and shall contain legally-sufficient property descriptions.

(iii) The Wellbore Assignment shall contain a special warranty of title by, through, or under Encana, but not otherwise.

(iv) If any Nucor Well includes a mineral interest owned by Encana or an Affiliate that is not subject to a lease, then such mineral interest will receive a royalty interest payable to Encana or such Affiliate of 16.67% (which royalty interest shall be borne (a) equally by Nucor and Encana, (b) by Encana as the sole participating Party if Nucor elects not to participate in a Head’s up Well, or (c) in the proportions set forth in Section 4.2, as applicable), which interest shall be proportionately reduced if the Encana mineral interest covers less than the full interest in the wellbore of the Nucor Well.

(v) Nucor and Encana shall each bear fifty percent (50%) of the drilling, completing, and equipping costs attributable to the interest of any working interest owner pooled pursuant to the provisions of Colorado Revised Statutes §34-60-116, as amended (a “Force-pooled Owner”) who does not participate in the drilling of a Carry Well or a Head’s up Well in which both Parties have elected to participate (subject to the interest of any other Third Party working interest owner who has elected to participate). The Wellbore Assignment to Nucor shall include the right to receive one-half (1/2) of the revenue attributable to the interest of such Force-pooled Owner, and the interest reflected in the Wellbore Assignment for casing, tubulars, downhole pumps, fixtures and equipment will be increased to reflect Nucor’s interest. Nucor shall bear one hundred percent (100%) of the drilling, completing, and equipping costs attributable to the interest of any Force-pooled Owner in any Head’s Up Well in which Encana has elected not to participate in accordance with Section 4.2 below.

(vi) The Wellbore Assignment shall be made subject to the terms and conditions of any existing operating agreement with a Third Party, any pooling or unitization agreement and any applicable Third Party agreements. Nucor’s interest in the Nucor Wells shall include the right to participate, in accordance with the terms of the New Operating Agreement, for its proportionate interest in any subsequent completions or recompletions in the wellbore.

(vii) It is expressly agreed and understood that the interest to be assigned to Nucor in any Nucor Well shall be proportionately reduced to the extent that Encana owns less than an undivided 100% working interest in the Carry Well.

I. Well Takeover. If any Nucor Well is determined by Encana to be a dry hole or cannot otherwise be completed as a producer to the Formation and Encana elects to continue drilling operations below the Formation, then Nucor may elect to participate in such drilling operation. If Nucor elects to participate, then (i) with respect to a Carry Well, Nucor shall pay the Nucor Cost Share of such Nucor Well without regard to the Individual Carry Well Cap, and (ii) with respect to a Head’s Up Well, Nucor shall pay its proportionate share of costs. Encana shall make a wellbore assignment to Nucor in accordance with Section 2.1 H, provided that such assignment shall be made to the total depth drilled. Nucor shall make its election with regard to participation within forty-eight hours (48) hours of telephone notice from Encana. If Nucor does not elect to participate in such drilling operation, then Encana promptly shall reimburse Nucor all costs of drilling paid by Nucor with respect to such Nucor Well, and shall indemnify and hold Nucor harmless from any losses or liability with respect to such well including, without limitation, plugging and abandonment obligations or Environmental Damages with respect to such well.

J. Use of Nucor Steel and Steel Products. Encana shall use its commercially reasonable best efforts to utilize Nucor steel and steel products, provided such products are readily available, meet Encana’s requirements, and are competitively priced, for tubulars and other downhole equipment to be installed in all Nucor Wells. For greater clarity, such consideration shall not in any way disadvantage the cost of a proposed Nucor Well.

K. Operation of Nucor Wells. After a Nucor Well is drilled, completed, and equipped, Encana and Nucor shall each bear and pay its working interest share of the costs and expenses of such Nucor Well in accordance with the New Operating Agreement. Subject to Section 9 and provided Nucor has paid the Nucor Cost Share or Nucor Head’s Up Share, as applicable, of costs of such well then due and owing, Nucor shall be entitled to, and Encana shall tender to Nucor, its net revenue interest share of production (or the proceeds from the sale thereof) from each such Nucor Well from the date of first production, notwithstanding that the applicable Wellbore Assignment has not yet been made.

L. Tax Partnership. On the date of execution of this Agreement, the Parties shall enter into a tax partnership agreement in the form set forth in Exhibit D.

A. Number of Carry Wells; Rig Limitation Period; Pre-Effective Date Carry Wells. Unless otherwise agreed by the Parties, Encana shall not (i) spud more than [***] Carry Wells (including the Pre-Effective Date Carry Wells) in calendar year 2012 or (ii) conduct drilling operations for Carry Wells with an average of more than [***] drilling rigs throughout calendar year 2013, and shall not conduct drilling operations for Carry Wells with an average of more than [***] drilling rigs throughout calendar year 2014 (the “Rig Limitation Period”); provided, however, if the average price for natural gas as reported by Platts Inside FERC’s Gas Market Report (Platts IFERC) Colorado Interstate Gas Co. Rocky Mountains for the three (3) months preceding the then-current month exceeds $[***], then Encana shall have the option to operate one (1) additional drilling rig to drill Carry Wells for the remaining term of the Rig Limitation Period. For calendar year 2015 and thereafter, Encana shall spud a minimum of [***] and a maximum of [***] Carry Wells in each calendar year until such time as the Carry Well Threshold has been met. The Parties recognize and acknowledge that, prior to the date of execution of this Agreement, Encana has spud or drilled, but not completed or equipped, those wells described in Schedule 2.2 A (the “Pre-Effective Date Carry Wells”). The wells described in Schedule 2.2 A shall be considered as Carry Wells for all purposes hereunder and costs with respect to such wells shall be paid by Nucor as provided in Section 2.2 B. Encana shall diligently complete the Pre-Effective Date Carry Wells and, in accordance with Section 2.1 H, Encana shall execute, acknowledge, and deliver to Nucor appropriate Wellbore Assignments for the Pre-Effective Date Carry Wells.

[***] This confidential information has been omitted and filed separately with the Securities and Exchange Commission pursuant to a request for confidential treatment.

B. Costs of Carry Wells. Except as provided in Section 2.2 D, Nucor shall pay not less than [***] and not more than [***] of the Individual Nucor Well Cost for each Carry Well (the “Nucor Cost Share”) as further described in Section 2.2 C; provided that if the Individual Nucor Well Cost exceeds $[***] for a Carry Well (the “Individual Carry Well Cap”), then the Individual Nucor Well Cost for such Carry Well in excess of the Individual Carry Well Cap (the “Excess Well Costs”) will be borne fifty percent (50%) by Encana and fifty percent (50%) by Nucor. From and after the Effective Date, Nucor shall pay the Nucor Cost Share (subject to Section 2.2 D) and fifty percent (50%) of Excess Well Costs, as applicable, of the Pre-Effective Date Carry Wells. The provisions of this Section 2.2 B regarding the Individual Carry Well Cap and adjustments thereto shall apply to the Pre-Effective Date Carry Wells, and all costs incurred for such wells, regardless of when they are incurred, shall be included when determining if the Individual Carry Well Cap has been reached. Except as provided in Section 2.2 D, the Nucor Cost Share shall be [***] for Carry Wells spud in 2012.

D. 100% Nucor Cost Share Period. Notwithstanding the foregoing, the Nucor Cost Share for Carry Wells spud after the Effective Date shall be [***] until the cumulative amount of the Nucor Carry paid by Nucor equals the sum of (i) [***] of the costs of drilling, completing and equipping the Pre-Effective Date Carry Wells (but not costs in excess of the Individual Carry Well Cap) incurred prior to the Effective Date, plus (ii) [***] of the Excess Well Costs of drilling, completing and equipping the Pre-Effective Date Carry Wells incurred prior to the Effective Date. The foregoing amount is referred to as the “Cumulative Amount.” The Individual Carry Well Cap shall not apply to the cost of Carry Wells until the Cumulative Amount is reached.

E. Horizontal Wells. The Parties acknowledge that the provisions of this Section 2.2 with respect to number of Carry Wells and the amount of the Individual Carry Well Cap and the provisions of Section 2.4 with respect the number of Head’s Up Wells do not apply to horizontal wells. If horizontal wells are drilled, the Individual Carry Well Cap shall be no less than [***] of the actual Individual Nucor Well Cost for such horizontal well. For the purpose of determining the number of Nucor Wells counted toward the Well Limit if a horizontal well is drilled, the Parties shall endeavor to agree upon the number of vertical wells displaced by such horizontal well and such agreed upon number shall be used in the calculation of the Well Limit. For the avoidance of doubt, the provisions of Section 2.4 E shall also apply in the calculation of the Well Limit.

[***] This confidential information has been omitted and filed separately with the Securities and Exchange Commission pursuant to a request for confidential treatment.

A. Election to Participate in Head’s Up Wells. At least sixty-five (65) days prior to the anticipated Spud Date of a Head’s Up Well, each Party shall notify the other Party whether it elects to participate in such well. Failure of a Party to elect to participate in a Head’s Up Well shall be deemed an election not to participate in such well. At its discretion, Encana may simultaneously conduct drilling operations for Carry Wells and Head’s Up Wells subject to the Rig Limitation Period.

B. HUW Restriction. At the planning meeting to be held in 2014 in accordance with Section 2.1 B to establish the well selection and drilling schedule for calendar year 2015 and continuing each year thereafter until the Carry Well Threshold is paid by Nucor, Nucor shall have the right to propose to Encana Head’s Up Wells to the Formation on the Oil and Gas Interests in the Property in excess of the number of Carry Wells described in Section 2.2; provided, however, that (i) the number of additional wells to be spudded pursuant to this section in calendar year 2015 and subsequent calendar years until the Carry Well Threshold is paid by Nucor shall not exceed [***] of the number of Carry Wells spudded in the prior calendar year (the “HUW Restriction”). Prior to meeting the Carry Well Threshold, if, due to a Suspension Notice delivered to Nucor by Encana in the prior (or any previous) year, the Parties have drilled fewer than [***] Carry Wells, then Nucor may propose up to [***] Head’s Up Wells to be drilled in a subsequent calendar year. Until the Well Limit is reached, in any calendar year, Encana shall not propose more than [***] Head’s Up Wells until the Carry Well Threshold is paid by Nucor and no more than [***] Head’s Up Wells after the Carry Well Threshold is paid by Nucor.

C. Satisfaction of Carry Well Threshold. Nucor shall have satisfied its obligation to fund Carry Wells under this Agreement from and after the time that the cumulative amount of the Nucor Carry paid by Nucor equals $[***] with respect to the Carry Wells (the “Carry Well Threshold”). Thereafter, Nucor may schedule a planning meeting and propose to Encana the drilling of additional wells to the Formation in the current calendar year without regard to the HUW Restriction; provided, however, that Nucor may propose no more than [***] Head’s Up Wells to be drilled in any calendar year. The maximum number of Head’s Up Wells that Nucor may propose in the calendar year in which the Carry Well Threshold has been achieved shall be determined by multiplying [***] by a fraction, the numerator of which is the number of days remaining in the calendar year, and the denominator of which is three hundred sixty-five (365). Encana shall use its reasonable best efforts to spud all proposed Head’s Up Wells in the calendar year reflected in the annual drilling schedule determined by the Parties at the annual planning meeting under Section 2.1 B or as set forth above. If Encana is unable to spud all scheduled Head’s Up Wells within a particular calendar year, then it shall not commence drilling operations on any Carry Wells for the next calendar year until all previously scheduled Head’s Up Wells have been spud. Notwithstanding the foregoing, in no event shall the number of Carry Wells and Head’s Up Wells in which Nucor elects to participate exceed the Well Limit.

[***] This confidential information has been omitted and filed separately with the Securities and Exchange Commission pursuant to a request for confidential treatment.

D. Withdrawal of Election to Participate. Nucor may withdraw its election to participate in any Head’s Up Well in which Encana has elected not to participate on or before sixty (60) days prior to the Spud Date of such well as set forth on the AFE for such well; provided, however, Nucor shall bear any and all costs incurred with respect to such well, including penalties imposed by contracted service providers such as rig operators and completion service companies. Encana may withdraw its election to participate in any Head’s Up Well in which Nucor has elected not to participate at any time prior to the Spud Date of such well as set forth on the AFE for such well, and Encana shall bear any and all costs incurred with respect to such well, including penalties imposed by contracted service providers such as rig operators and completion service companies

E. Calculation of the Number of Nucor Wells. The total number of Nucor Wells spudded shall not exceed the Well Limit. A Head’s Up Well in which Encana elects not to participate shall be counted twice for the purpose of determining the number of Nucor Wells. Any Head’s Up Well proposed by Encana in which Nucor elects not to participate shall not be counted toward the Well Limit. The Parties acknowledge that if Nucor elects not to participate in a substantial number of Head’s Up Wells proposed by Encana, there may not be sufficient Well Locations available to allow Nucor to propose Head’s Up Wells to reach the Well Limit.

F. Participation in Head’s Up Wells. The costs for Head’s Up Wells in which both Parties participate shall be borne fifty percent (50%) by Encana and fifty percent (50%) by Nucor. If Nucor elects not to participate in a Head’s Up Well, then it shall pay no portion of the drilling, completing, or equipping costs for such well, and shall own no interest in such well. If Encana elects not to participate in a Head’s Up Well and Nucor elects to proceed with such well, then the Parties shall proceed in accordance with Section 4.2 below.

Prior to the commencement of drilling operations on any Nucor Well, Encana will conduct, or cause to be conducted, title examination of the applicable Well Location and the relevant Oil and Gas Interests and conduct any necessary title curative work. When Encana provides Nucor with an AFE, Encana shall deliver to Nucor copies of all title documentation relating to the Nucor Well in Encana’s files or to which Encana has access, including, without limitation, all title opinions and reports, title curative documents, and any applicable Third Party joint operating agreements. Such title information shall be provided to Nucor without warranty as to accuracy. Encana shall have no obligation to purchase new or supplemental abstracts. Encana will undertake curative work in connection with title to the Carry Wells which is required by the New Operating Agreement or any other operating agreement applicable to such Carry Well and which a reasonable and prudent Piceance Basin oil and gas operator would undertake in a similar situation.

Encana and Nucor shall enter into the form of operating agreement attached hereto as Exhibit E (“New Operating Agreement”) which shall govern all operations for the Nucor Wells as between the Parties. Encana shall be designated as operator of all Nucor Wells, and upon the spudding of

a Nucor Well, the New Operating Agreement shall be deemed amended to include such Nucor Well. In addition, the Parties intend that the New Operating Agreement shall govern each Party’s election to participate in subsequent operations on all of the Nucor Wells in which both Parties have an interest. For the avoidance of doubt, any subsequent operations under the New Operating Agreement with respect to any Carry Well shall be conducted on a well-by-well basis, and the costs for the subsequent operations shall be borne fifty percent (50%) by Encana and fifty percent (50%) by Nucor in accordance with the New Operating Agreement.

If Encana elects not to participate in a Head’s Up Well and Nucor elects to proceed with such well, then Encana shall serve as operator of such well under the New Operating Agreement. Notwithstanding anything to the contrary in this Agreement, (i) at least thirty (30) days prior to the anticipated Spud Date of a Head’s Up Well in which Encana elects not to participate, Nucor shall pay to Encana the amount of the AFE for costs of drilling such well, and (ii) at least thirty (30) days prior to the anticipated commencement of completion operations for such well, Nucor shall pay to Encana the amount of the AFE for costs of completing and costs of equipping such well, such payments to be made by wire transfer. As compensation for its services as operator of a Head’s Up Well in which Encana has elected not to participate (in addition to applicable overhead rates set forth in the New Operating Agreement), Encana shall receive or reserve, as applicable, an undivided two and one-half percent (2.5%) of 8/8ths carried working interest in and to such well, proportionately reduced if the Parties own less than the full leasehold or mineral interest in such well. As used herein, the term “carried working interest” means that Encana shall bear none of the costs of drilling, completing, or equipping any Head’s Up Well in which Encana has elected not to participate, but Encana shall bear two and one-half percent (2.5%) of 8/8ths (proportionately reduced if the Parties’ collective operating interest covers less than one hundred percent (100%) of the mineral or leasehold estate) of (i) the monthly well operating costs, (ii) royalty, severance, ad valorem, and property taxes and other burdens assessed or imposed against the well or the oil and gas production therefrom, (iii) the costs of any subsequent operations on said well, and (iv) the plugging and abandonment costs of any such well which was completed as a well capable of producing in paying quantities, all in accordance with the New Operating Agreement.

If any of the Nucor Wells is subject to an existing joint operating agreement with a Third Party, such existing joint operating agreement shall control as to such Third Party, and the Wellbore Assignment shall be subject to such existing joint operating agreement; however, as between Nucor and Encana, this Agreement and the New Operating Agreement shall control. In the event of any conflict or inconsistency between the terms of this Agreement and the New Operating Agreement, this Agreement shall prevail to the extent of such conflict. If Nucor and/or Encana acquire the entire Oil and Gas Interest governed by an existing Third Party joint operating agreement, then such Third Party joint operating agreement shall terminate and be superseded and replaced in its entirety by the New Operating Agreement.

After the Effective Date, if Encana or Nucor creates any additional burdens on the Property, the Party creating such additional burden shall be solely responsible for and shall pay such additional burden; provided however, any Oil and Gas Interest in a Nucor Well owned by Encana or its Affiliate that is not subject to an oil and gas lease will be subject to a royalty payable to Encana or such Affiliate of 16.67%, which shall be borne (i) equally by Nucor and Encana, (ii) by Encana as the sole participating Party in a Head’s Up Well, or (iii) in the proportions set forth in Section 4.2, as applicable. Subject to the foregoing sentence, Encana shall make payment of all burdens affecting the Nucor Wells, and Nucor shall reimburse Encana for Nucor’s portion of all burdens. Encana shall make shut-in royalty payments, minimum royalty payments, delay rentals, and similar payments in order to maintain the Oil and Gas Interests on which Nucor Wells are located in force and effect. The Parties shall bear all of such payments in proportion to their interest in the Nucor Wells affected. Encana shall not be liable for any damages resulting from the failure to make proper payment if such failure is a result of mistake or oversight.

Each Party, with respect to itself only, hereby represents and warrants to the other Party the following:

A. Each Party is duly organized, validly existing and in good standing under the Applicable Law of the State of its incorporation or formation, and is qualified to do business and is in good standing in the State of Colorado and in every other jurisdiction where the failure to so qualify would have a material adverse effect on its ability to execute, deliver, and perform this Agreement and the other agreements contemplated herein.

B. Each Party has all requisite power and authority to (i) own, lease or operate its assets and properties and to carry on the business as contemplated hereunder, and (ii) enter into and perform its obligations under this Agreement and to carry out the transactions contemplated hereby, including the ownership of interests in federal oil and gas leases.

C. Without diminishing the effects of the specific representations, warranties and covenants contained in this Agreement, each Party has conducted the necessary inquiries and due diligence in support of the commitments made hereunder with full knowledge of the risks and obligations inherent in the ownership and operation of oil and gas interests.

D. Each Party has taken (or caused to be taken) all acts and other proceedings required to be taken by such Party to authorize the execution, delivery and performance by such Party of this Agreement and the other agreements contemplated herein. This Agreement has been duly executed and delivered by each Party and constitutes the valid and binding obligation of each Party, enforceable against such Party in accordance with its terms, except as enforceability may be limited by applicable bankruptcy, moratorium, reorganization or similar laws affecting the rights of creditors generally and by principles of equity, whether considered in a proceeding at law or in equity. The execution, delivery, and performance of this Agreement by each Party

does not and will not (i) conflict with, or result in any violation of, or constitute a breach or default (with notice or lapse of time, or both) under (A) any provision of the organizational documents of such Party, or (B) any applicable statute, law, rule, regulation, order, agreement, instrument or license applicable to such Party, except as would not have a material adverse effect, or (ii) require the submission of any notice, report, consent or other filing with or from any Governmental Authority or Third Parties, other than such consents as are customarily obtained after assignment of interests similar to the Wellbore Assignments.

E. There are no actions, suits or proceedings pending or, to such Party’s Knowledge, threatened against a Party which if decided unfavorably to such Party could have a material adverse effect on the ability of such Party to execute, deliver, or perform this Agreement or could materially affect its title to, or ownership or operation of, the Oil and Gas Interests, the Well Locations, or the Carry Wells.

F. No Party has incurred any obligation or liability, contingent or otherwise, for any fee payable to a broker or finder with respect to the matters provided for in this Agreement or the other agreements contemplated herein which could be attributable to or charged to the other Party. Each Party shall indemnify, defend, and hold harmless the other Party from any claims, damages, liabilities, costs and expenses, including reasonable attorney’s fees in the event the prior sentence should be or become untrue as to such Party.

attached hereto sets forth all of the overriding royalty, royalty, net profits, production payment, and other similar interests owned by Encana or its Affiliates in the Oil and Gas Interests, except that the Oil and Gas Interests subject to a royalty payable to Encana or its Affiliate of 16.67% in accordance with Section 4.4 are not set forth in Schedule 5.2. Encana’s interest in the Oil and Gas Interests comprising the Well Locations on which the Nucor Wells are drilled will not be subject to any liens or encumbrances of any type or nature other than the Permitted Encumbrances. As long as Nucor is taking its share of production from the Oil and Gas Interests in kind, there will be no calls on production or contracts for sale of production encumbering the Nucor Wells which provide for the delivery of oil and gas at a price below the prevailing market price. Prior to drilling a Nucor Well, Encana shall obtain the waiver of all preferential purchase rights and all consents to assignment that must be obtained from any Third Parties in order to make a Wellbore Assignment of such Nucor Well to Nucor.

B. All Oil and Gas Interests comprising the Well Locations on which the Nucor Wells are drilled will be in full force and effect. Operations with respect to the Oil and Gas Interests insofar as they pertain to the Nucor Wells will be in compliance with applicable rules, regulations, statutes, and laws of any Governmental Authority.

C. Prior to the commencement of drilling operations on any Nucor Well hereunder, Encana shall have obtained all consents, approvals, certificates, licenses, permits, and other authorizations of all Third Parties and the necessary Governmental Authority required for Encana to own, drill, develop, operate, and maintain the Oil and Gas Interests comprising the Well Location for such Nucor Well

D. Each Nucor Well shall be drilled within the boundaries of the applicable Oil and Gas Interest(s) at a legal location in accordance with all spacing and density regulations of any Governmental Authority. None of the Nucor Wells shall be subject to penalties or reduced allowables because of any violation of Applicable Law, rules, regulations, permits, or judgments, orders or decrees of any court or Governmental Authority.

With respect to each Nucor Well and Well Location, the foregoing representations and warranties contained in this Section 5.2 shall terminate two (2) years after the date of each Wellbore Assignment to Nucor of an interest in such Nucor Well and shall thereafter have no further force and effect.

If a Party is rendered unable, wholly or in part, by a force majeure event to carry out its obligations under this Agreement (other than the obligations to make monetary payments and to deliver Wellbore Assignments of interests in the Nucor Wells) the affected Party shall give the other Party prompt written notice describing the force majeure event in reasonable detail. Thereupon, the obligations of the Party giving notice, so far as it is affected by the force majeure event, shall be suspended and any time periods provided for in this Agreement shall be extended for a period equal to the period of the continuance of the force majeure event. The affected Party shall use all reasonable diligence to remove the force majeure event as quickly as practicable. The requirement that any force majeure event be remedied with all reasonable dispatch shall not require the settlement of strikes, lockouts or other labor difficulty by the Party affected, contrary to its wishes, and settlement or resolution of such matters shall be within the discretion of the affected Party. The term “force majeure event” as used herein, shall mean an act of God, act of terrorism, strike, lockout, or other industrial disturbance, act of the public enemy, war, blockade, public riot, lightning, fire, storm, flood, explosion, the actions of Governmental Authority, restraint or inaction, the interruption or suspension of the receipt or delivery of natural gas (or any of its constituents) or water due to the inability or failure of any Third Party who is not a party to this Agreement (other than an Affiliate of either Party hereto), to receive or deliver such gas or water, unavailability of equipment, or inability to gain access, ingress or egress to conduct operations (including without limitation delays in or inability to obtain permits, approvals or clearances from Governmental Authority, so long as the Party claiming such force majeure event uses its commercially reasonable best efforts to obtain any such permits, approvals or clearances from such Governmental Authority), or other event beyond the reasonable control of the affected Party.

The term of this Agreement (the “Term”) shall begin on the Effective Date and shall terminate upon the earlier to occur of (i) the first day of the month after the Parties, or their successors or permitted assigns, reach the Well Limit for Nucor Wells and Nucor has paid all amounts for the drilling, completing, and equipping of Nucor Wells required hereunder, or (ii) 75 years from the Effective Date hereof.

Neither Party may assign or transfer, by assignment, sale, farmout or otherwise, or pledge or encumber in any way, in whole or in part, any of its rights or obligations under this Agreement without the express prior written consent of the other Party, which may be withheld in such other Party’s sole discretion; provided, however, that the foregoing provision shall not apply to a Change of Control or an assignment to one (1) or more of a Party’s Affiliates. Encana hereby unconditionally guarantees to Nucor, its successors and assigns, the payment and performance of all of Encana’s obligations and covenants hereunder in the case of an assignment, in whole or in part, to any of its Affiliates. Prior written consent of the other Party shall not, however, be required for the assignment or transfer of a Party’s interest in a Nucor Well and the associated equipment, provided that (i) such assignment or transfer is subject to the provisions of this Agreement (including all Exhibits hereto) and the New Operating Agreement and (ii) any such assignment or transfer may be made only after delivery of the Wellbore Assignment to Nucor. The foregoing sentence shall not prevent the assignment or transfer by Encana of its interest in a Head’s Up Well in which Nucor did not participate. Any assignment or transfer of operations of a Nucor Well by Encana may be made only to a Third Party with sufficient operating expertise and financial capability to operate such Nucor Well as a reasonable and prudent operator in the Piceance Basin. Other than as provided above, until the Well Limit is reached, Encana shall not assign or transfer a portion of its interest in the Formation in the Property without the prior written consent of Nucor, which consent Nucor may withhold in its sole discretion. Any assignee of any interest hereunder shall expressly assume in writing the obligations and liabilities under all agreements applicable to such interest, including this Agreement and the New Operating Agreement.

Notwithstanding anything to the contrary in this Agreement, in the event that a Change of Control of either Party (the “First Party”) occurs, the other Party (the “Other Party”) shall have the option to terminate its obligation to fund additional Carry Wells or to drill additional Nucor Wells, as applicable, under this Agreement. The First Party shall deliver written notice to the Other Party of a Change of Control along with information reasonably available to the First Party regarding the financial position and operational experience of its successor-in-interest. The Other Party shall have thirty (30) days from the receipt of such notice to make a one-time election to terminate its obligation to fund additional Carry Wells or drill additional Nucor Wells, as applicable. If Nucor elects to cease funding Carry Wells, then it shall not have any further right to propose or to participate in Head’s Up Wells. If the Other Party fails to deliver timely written notice to the First Party advising the First Party of the Other Party’s election, the Other Party shall be obligated to continue to fund additional Carry Wells or to drill Nucor Wells, as applicable, pursuant to the terms of this Agreement. If the Other Party elects to terminate its obligation to fund additional Carry Wells or drill additional Nucor Wells, this Agreement (including all Exhibits hereto) shall continue in full force and effect as to all Nucor Wells that have been funded in whole or in part prior to such election.

If a Party fails to make any payment to the other when due under this Agreement (the “defaulting Party”), then in addition to, and not in lieu of, other available remedies, the non-defaulting Party may offset any other amount arising under this Agreement owed by the non-defaulting Party against the amount owed under this Agreement by the defaulting Party. Notwithstanding the foregoing, the non-defaulting Party may not offset any amount that the defaulting Party has contested in good faith within thirty (30) days of the date of its receipt of the disputed billing statement, and as to which the defaulting Party has provided the non-defaulting Party with written notice of defaulting Party’s position, including the basis therefor and supporting documentation, if any.

All notices and communications required or permitted under this Agreement shall be in writing addressed as indicated below, and any communication or delivery hereunder shall be deemed to have been duly delivered upon the earliest of: (a) actual receipt by the Party to be notified; (b) three days after deposit with the US Postal Service, certified mail, postage prepaid, return receipt requested; (c) if by facsimile transmission, upon confirmation by the recipient of receipt, or if by e-mail, upon receipt of a confirming e-mail from the recipient of the e-mail; or (d) by Federal Express overnight delivery (or other reputable overnight delivery service), two days after deposited with such service. Addresses for all such notices and communication shall be as follows:

Either Party may, upon written notice to the other Party, change the address and person to whom such communications are to be directed.

This Agreement is not intended to create, and shall not be construed to create, an association for profit, a trust, a joint venture, a mining partnership or other relationship of partnership, or entity of any kind between the Parties. Notwithstanding anything to the contrary contained herein, the Parties understand and agree that the arrangement and undertakings evidenced by this Agreement, taken together, result in a partnership for purposes of federal income taxation and for purposes of certain state income tax laws which incorporate or follow federal income tax principles as to tax partnerships. For these purposes, the Parties agree to be governed by the tax partnership provisions attached as Exhibit D, which are incorporated herein and made a part of this Agreement by this reference. For every purpose other than the above-described income tax purposes, however, the Parties understand and agree that the liabilities of the Parties shall be individual, not joint or collective, and that each Party shall be solely responsible for its own obligations. In the case of any conflict or inconsistency between the terms and conditions of this Agreement and the terms and conditions of any attachment or exhibit hereto (other than Exhibit D), the terms and conditions of this Agreement shall govern and control. In the event of any conflict or inconsistency between the terms and conditions of Exhibit D and the terms and conditions of this Agreement or any other attachment or Exhibit hereto, the terms and conditions of Exhibit D shall govern and control.

This Agreement, and the exhibits and schedules hereto and thereto, contain the entire agreement of the Parties with respect to the subject matter hereof and supersede all previous agreements or communications between the Parties, verbal or written, with respect to the subject matter hereof.

This Agreement shall be governed by and construed and interpreted in accordance with the laws of the State of Colorado, without reference to its conflicts of laws provisions.

No amendments or other modifications or changes to this Agreement shall be effective or binding on either Party unless the same shall be in a writing executed by both Parties. No waiver by either Party of any one or more defaults by the other in the performance of this Agreement shall operate or be construed as a waiver of any future default or defaults, whether of a like or different nature.

Except as required by Applicable Law or the listing agreement or other requirements of a national securities exchange, neither Party shall issue a public statement or press release with respect to the transactions contemplated herein . Nucor and Encana acknowledge and agree that Nucor intends to make disclosures of the transaction described herein to the Securities and Exchange Commission as required by Applicable Law contemporaneously with the execution hereof and thereafter, and will issue a press release with respect to the transaction described herein. Nucor shall provide Encana with copies of such disclosures and releases prior to filing same.

If a court of competent jurisdiction determines that any clause or provision of this Agreement is void, illegal, unenforceable or unconscionable under any present or future law (or interpretation thereof), the remainder of this Agreement shall remain in full force and effect, and the clauses or provisions that are determined to be void, illegal, unenforceable, or unconscionable shall be deemed severed from this Agreement as if this Agreement had been executed with the invalid provisions eliminated; provided, however, that notwithstanding the foregoing, if the removal of such provisions destroys the legitimate purposes of this Agreement, then this Agreement shall no longer be of any force or effect. The Parties shall negotiate in good faith for any required modifications to this Agreement required as a result of this provision.

The Parties acknowledge and declare that this Agreement is the result of extensive negotiations between them. Accordingly, if there is any ambiguity in this Agreement, then there shall be no presumption that this instrument was prepared solely by either Party.

The Parties agree to resolve all disputes concerning or relating to this Agreement pursuant to the provisions of this Section 18. The Parties agree to submit all disputes to binding arbitration in Denver, Colorado. The arbitration will be conducted according to the procedure that follows. The arbitration proceedings shall be governed by Colorado law and shall be conducted in accordance

with the rules for Non-Administered Arbitration of Business Disputes published by The Center for Public Resources, Inc., with discovery to be conducted in accordance with the Federal Rules of Civil Procedure, and with any disputes over the scope of discovery to be determined by the Arbitrators. The arbitration shall be before a single Arbitrator chosen by the mutual agreement of the Parties, or if no agreement as to the identity of the Arbitrator can be reached within ten days, a three person panel of neutral Arbitrators, consisting of one person chosen by each Party, and the two Arbitrators so selected choosing the third. The panel so chosen or the single person are referred to herein as the “Arbitrators.” The Arbitrators shall conduct a hearing no later than sixty (60) days after submission of the matter to arbitration, and the Arbitrators shall render a written decision within thirty (30) days of the hearing. At the hearing, the Parties shall present such evidence and witnesses as they may choose, with or without counsel. Adherence to formal rules of evidence shall not be required, but the Arbitrators shall consider any evidence and testimony that they determine to be relevant, in accordance with procedures that they determine to be appropriate. Any award entered in the arbitration shall be made by a written opinion stating the reasons and basis for the award made and any payment due pursuant to the arbitration shall be made within fifteen (15) days of the decision by the Arbitrators. The decision of the Arbitrators shall be binding on the Parties, final and non-appealable, and may be filed in a court of competent jurisdiction and may be enforced by either Party as a final judgment of such court. Each Party shall bear its own costs and expenses of the arbitration, provided, however, that the costs of employing the Arbitrators shall by shared equally by the Parties.

NOTWITHSTANDING ANYTHING TO THE CONTRARY IN THIS AGREEMENT AND FOR THE AVOIDANCE OF DOUBT, EACH PARTY HEREBY EXPRESSLY DISCLAIMS, WAIVES AND RELEASES THE OTHER PARTY FROM ITS OWN EXEMPLARY AND PUNITIVE DAMAGES. NO LAW, THEORY, OR PUBLIC POLICY SHALL BE GIVEN EFFECT WHICH WOULD UNDERMINE, DIMINISH, OR REDUCE THE EFFECTIVENESS OF THE FOREGOING WAIVER, IT BEING THE EXPRESS INTENT, UNDERSTANDING, AND AGREEMENT OF THE PARTIES THAT SUCH DAMAGE WAIVER IS TO BE GIVEN THE FULLEST EFFECT, NOTWITHSTANDING THE NEGLIGENCE (WHETHER SOLE, JOINT OR CONCURRENT), GROSS NEGLIGENCE, WILLFUL MISCONDUCT, STRICT LIABILITY OR OTHER LEGAL FAULT OF EITHER PARTY.

Encana shall RELEASE, DEFEND, PROTECT, INDEMNIFY, and HOLD HARMLESS Nucor, its Affiliates, and all of their stockholders, officers, employees, directors, and agents from and against any Damages including, without limitation, any Damages on account of illness, injury, or death suffered by any Person, or the loss or damage to the property of any Person, arising out of, in connection with, or relating to (i) any grossly negligent or willful conduct of Encana, its Affiliates, or any of their officers, employees, directors, or agents with respect to the performance of Encana’s obligations under this Agreement, (ii) Encana’s breach of any

representation or warranty contained in this Agreement, (iii) Encana’s breach of any covenant or agreement contained in this Agreement, (iv) all wells operated by Encana on the Property that are not Nucor Wells, and (v) the plugging and abandonment liability for all wells on the Property that are not Nucor Wells.

Encana shall RELEASE, DEFEND, PROTECT, INDEMNIFY, and HOLD HARMLESS Nucor, its Affiliates, and all of their stockholders, officers, employees, directors, and agents from and against any Environmental Damages arising out of, in connection with, or relating to any Environmental Condition in, on, under or with respect to any Well Location (or the relevant Oil and Gas Interests comprising such Well Location) in existence prior to the commencement of drilling operations for a Nucor Well on such Well Location.

Nucor shall RELEASE, DEFEND, PROTECT, INDEMNIFY, and HOLD HARMLESS Encana, its Affiliates, and all of their stockholders, officers, employees, directors, and agents from and against any Damages including, without limitation, any Damages on account of illness, injury, or death suffered by any Person, or the loss or damage to the property of any Person, arising out of, in connection with, or relating to (i) any grossly negligent or willful conduct of Nucor, its Affiliates, or any of their officers, employees, directors, or agents with respect to the performance of Nucor’s obligations under this Agreement, (ii) Nucor’s breach of any representation or warranty contained in this Agreement, and (iii) Nucor’s breach of any covenant or agreement contained in this Agreement.

All policies of insurance carried for the joint account as set forth in Exhibit D of the New Operating Agreement shall include the following: (i) except for Worker’s Compensation policies, all such policies shall include Nucor as an additional insured; (ii) all such policies shall provide that such insurance is primary and not excess or contributory to any other policy of insurance carried by Nucor for its own account; and (iii) all such policies shall provide that, to the maximum extent permissible by Applicable Law, the insurers shall waive all rights of subrogation against Nucor, and all of its stockholders, officers, employees, directors, and agents. The costs of all policies of insurance carried for the joint account will be borne in proportion to the Parties’ interests in the Nucor Wells.

The Parties hereby designate the AMI Area as an area of mutual interest to acquire AMI Interests. The AMI Area shall be in force and effect for a period of fifteen (15) years from the Effective Date hereof (the “AMI Term”), unless earlier terminated by a written agreement signed by each of the Parties hereto.

During the AMI Term, if either Party, or any Affiliate of a Party, acquires any AMI Interest (the “Acquiring Party”), then such Acquiring Party shall within five (5) Business Days provide the other Party with written notice of such acquisition. The notice shall include (A) a statement of the purchase price for the AMI Interest (the “AMI Purchase Price”) and all of the Acquiring Party’s actual Third Party out-of-pocket costs incurred to acquire the AMI Interest (the “Acquisition Costs”), together with reasonable support for the statement, (B) the portion of (i) the AMI Purchase Price and (ii) the Acquisition Costs to be paid by the other Party if such other Party elects to acquire the portion of the AMI Interest described below, and (C) a copy of all instruments of acquisition including, by way of example but not of limitation, copies of the oil and gas leases, assignments, subleases, farmouts, or other contracts creating or affecting the AMI Interest. If the AMI Purchase Price is not paid in cash, then the AMI Purchase Price shall be the value allocated to the AMI Interest by the Acquiring Party and the Third Party.

The portion of an AMI Interest that may be acquired by other Party (the “Undivided Interest”) and the portion of the AMI Purchase Price and the Acquisition Costs to be paid for such AMI Interest is set forth below:

A. If the AMI Interest does not include depths below the base of the Formation, then the other Party may elect to acquire an undivided one-half (1/2), but not less than one-half (1/2), of the offered AMI Interest, and shall bear fifty percent (50%) of the AMI Purchase Price and fifty percent (50%) of the Acquisition Costs.

B. If the AMI Interest does not include any interest in producing wells and includes formations below the base of the Formation, then

(i) if Nucor is the other Party, then it may elect to acquire an undivided one-half (1/2), but not less than one-half (1/2), of the AMI Interest from the surface to the base of the Formation, and shall bear twenty-five percent (25%) of the AMI Purchase Price and twenty-five percent (25%) of the Acquisition Costs, or

(ii) if Encana is the other Party, then it may elect to acquire an undivided one-half (1/2), but not less than one-half (1/2), of the AMI Interest from the surface to the base of the Formation and all of the AMI Interest below the base of the Formation, and shall bear seventy-five percent (75%) of the AMI Purchase Price and seventy-five percent (75%) of the Acquisition Costs.

C. If the AMI Interest includes an interest in producing wells above the base of the Formation and includes formations below the base of the Formation, then the Parties shall allocate a portion of the AMI Purchase Price to the producing formations based upon a net present value analysis or other mutually acceptable valuation methodology, and

(i) if Nucor is the other Party, then it may elect to acquire an undivided one-half (1/2), but not less than one-half (1/2), of the AMI Interest from the surface to the base of the Formation, and shall bear (1) fifty percent (50%) of the portion of AMI Purchase Price allocated to the producing formation, and (2) twenty-five percent (25%) of the remaining portion of the AMI Purchase Price and twenty-five percent (25%) of the Acquisition Costs, or

(ii) if Encana is the other Party, then it may elect to acquire an undivided one-half (1/2), but not less than one-half (1/2), of the AMI Interest from the surface to the base of the Formation and all of the AMI Interest below the base of the Formation, and shall bear (1) fifty percent (50%) of the portion of AMI Purchase Price allocated to the producing formation, and (2) seventy-five percent (75%) of the remaining portion of the AMI Purchase Price and seventy-five percent (75%) of the Acquisition Costs.

D. If the AMI Interest includes an interest in producing wells below the base of the Formation and includes formations above the base of the Formation, then the Parties shall allocate a portion of the AMI Purchase Price to the producing formations based upon a net present value analysis or other mutually acceptable valuation methodology, and

(i) if Nucor is the other Party, then it may elect to acquire an undivided one-half (1/2), but not less than one-half (1/2), of the AMI Interest from the surface to the base of the Formation, and shall bear (1) none (0%) of the portion of AMI Purchase Price allocated to the producing formation, and (2) twenty-five percent (25%) of the remaining portion of the AMI Purchase Price and twenty-five percent (25%) of the Acquisition Costs, or

(ii) if Encana is the other Party, then it may elect to acquire an undivided one-half (1/2), but not less than one-half (1/2), of the AMI Interest from the surface to the base of the Formation and all of the AMI Interest below the base of the Formation, and shall bear (1) one hundred percent (100%) of the portion of AMI Purchase Price allocated to the producing formation, and (2) seventy-five percent (75%) of the remaining portion of the AMI Purchase Price and seventy-five percent (75%) of the Acquisition Costs.

The recipient of the notice of acquisition of an AMI Interest from the Acquiring Party shall have a period of twenty (20) Business Days after receipt of the Acquiring Party’s acquisition notice to furnish the Acquiring Party with (i) written notice of its election to acquire the Undivided Interest, and (ii) a check in the amount of the recipient’s portion of the AMI Purchase Price and the Acquisition Costs. The recipient of the notice of acquisition of an AMI Interest from the Acquiring Party shall not bear any of the Acquiring Party’s or its Affiliates’ internal overhead, land, legal, acquisition, or other costs incurred with respect to any AMI Interest.

If the recipient of the notice of acquisition of an AMI Interest from the Acquiring Party fails or refuses to provide the Acquiring Party with written notice of its election to acquire the Undivided Interest within the twenty (20) Business Day response period, then such failure or refusal shall constitute an irrevocable election by such Party not to acquire the Undivided Interest. Upon timely receipt by the Acquiring Party of the recipient’s notice to acquire the Undivided Interest and payment by check, the Acquiring Party shall execute and deliver to the recipient a legally-

sufficient conveyance in recordable form of the Undivided Interest. Any Conveyance made by the Acquiring Party shall contain a special warranty of title that the Undivided Interest is free and clear of any burdens or encumbrances placed thereon by, through, or under the Acquiring Party, but not otherwise.

By its execution of this Agreement, Parent fully guarantees the performance by Nucor of this Agreement.

This Agreement is for the sole benefit of the Parties, their respective successors and permitted assigns, and each Party’s Affiliates, and all of their stockholders, officers, employees, directors, and agents who are designated as indemnitees under Section 20, and shall not inure to the benefit of any other Person whomsoever or whatsoever, it being the intention of the Parties that no other Third Party shall be deemed a third party beneficiary of this Agreement.

Except as otherwise provided in Section 11, if there is any conflict or inconsistency between any of the terms and provisions of this Agreement and the terms and provisions of any of the instruments attached as Exhibits hereto including, without limitation, Exhibit E—Form of New Operating Agreement, then the terms and provisions of this Agreement shall prevail and control.

The Parties recognize that irreparable injury to the Parties will result from any breach of this Agreement and that money damages will be inadequate to fully remedy the injury. The Parties, in addition to any other available remedies at law for any breach hereof, will be entitled to enforcement of the provisions through specific performance, which may include obtaining one (1) or more preliminary or permanent orders (i) restraining or enjoining any act which would constitute a breach or (ii) compelling performance of any obligation which, if not performed, would constitute a breach.

The Parties shall execute, acknowledge, and deliver or cause to be executed, acknowledged and delivered such instruments and take such other action as may be necessary or advisable to carry out their obligations under this Agreement and under any document or other instrument delivered pursuant hereto.

This Agreement may be executed by signing an original or a counterpart thereof. If this Agreement is executed in counterparts, all counterparts taken together shall have the same effect as if all the Parties had signed the same instrument.

IN WITNESS WHEREOF, this Agreement is executed and effective as of the Effective Date first above written.

Attached to and made a part of the BJU Carry and Earning Agreement executed October 31,

2012 but effective November 1, 2012 by and between Encana Oil & Gas (USA) Inc. and Nucor

[***] This confidential information has been omitted and filed separately with the Securities and Exchange Commission pursuant to a request for confidential treatment.

October 31, 2012 but effective as of November 1, 2012 by and between Encana Oil &

Attached to and made a part of the BJU Carry & Earning Agreement executed October 31,

2012 but effective November 1, 2012 by and between EnCana Oil & Gas (USA) Inc. and

THAT Encana Oil & Gas (USA) Inc., whose address is 370 17^th Street, Suite 1700, Denver, CO 80202 (hereinafter referred to as “Assignor”) for good and valuable consideration, the receipt and sufficiency of which are hereby acknowledged and confessed, does hereby GRANT, BARGAIN, SELL, TRANSFER, ASSIGN, AND CONVEY unto Nucor Energy Holdings Inc., whose address is 1915 Rexford Road, Charlotte, NC 28211 (hereinafter referred to as “Assignee”) an undivided fifty percent (50.00%) of Assignor’s right, title, interest, and estate in and to the following, subject to the limitations below (collectively, the “Assigned Interests”):

TO HAVE AND TO HOLD the Assigned Interests unto Assignee and its successors and assigns, subject to all the express and implied covenants and obligations of the Leases and this assignment.

EXECUTED this day of 2012, but effective as of the date of first production for each Well as set forth on Exhibit A.

BEFORE ME, the undersigned authority, on this day personally appeared Ricardo D. Gallegos, VP, Bus. Dev. – Negotiations & Lead Rockies & Intl. Land for ENCANA OIL & GAS (USA) INC., known to me to be the person whose name is subscribed to the foregoing instrument, and acknowledged to me that he executed the same for the purposes and consideration therein expressed and in the capacity therein stated.

BEFORE ME, the undersigned authority, on this day personally appeared, for NUCOR ENERGY HOLDINGS INC. known to me to be the person whose name is subscribed to the foregoing instrument, and acknowledged to me that he executed the same for the purposes and consideration therein expressed and in the capacity therein stated.

Attached to the BJU Carry and Earning Agreement executed October 31, 2012 but effective

November 1, 2012 by and between Nucor Energy Holdings Inc. and Encana Oil & Gas (USA) Inc.

This exhibit is referred to in, and is part of, the agreements identified above and, if so provided, a part of any agreement to which the agreements are an exhibit. Such agreements (including all exhibits thereto, other than this exhibit) shall be hereinafter referred to as the “Agreement;” and this exhibit is hereinafter referred to as the “Exhibit” or the “Tax Partnership Provisions” (the “TPPs”). Except as may be otherwise provided in this Exhibit, terms defined and used in the Agreement shall have the same meaning when used herein.

The parties to the Agreement shall be hereinafter referred to as “Party” or “Parties.” The Parties understand and agree that the arrangement and undertakings evidenced by the Agreement result in a partnership for purposes of Federal income taxation and certain State income tax laws which incorporate or follow Federal income tax principles as to tax partnerships. Such partnership for tax purposes is hereinafter referred to as the “Tax Partnership”. For every other purpose of the Agreement, the Parties understand and agree that their legal relationship to each other under applicable State law with respect to all property subject to the Agreement is one of tenants in common, or undivided interest owners and not members in or partners of a partnership; that the liabilities of the Parties shall be several and not joint or collective; and that each Party shall be responsible solely for its own obligations.

If there is a conflict or inconsistency, whether direct or indirect, actual or apparent, between the terms and conditions of this Exhibit and the terms and conditions of the Agreement, or any other exhibit or any part thereof, the terms and conditions of this Exhibit shall govern and control.

1.4.1. Any termination of the Agreement shall not affect the continuing application of the TPPs for the termination and liquidation of the Tax Partnership.

1.4.2. Any termination of the Agreement shall not affect the continuing application of the TPPs for the resolution of all matters regarding Federal and State income reporting.

1.4.3. These TPPs shall inure to the benefit of, and be binding upon, the Parties hereto and their successors and assigns.

1.4.4. The effective date of the Agreement shall be the effective date of these TPPs. The Tax Partnership shall continue in full force and effect from, and after such date, until termination and liquidation pursuant to Sec. 7.1.

Encana Oil & Gas (USA) Inc. as the Tax Reporting Partner (“TRP”) is responsible for compliance with all tax reporting obligations of the Tax Partnership, see Sec. 3.1, below. In the event of any change in the TRP, the Party serving as TRP at the beginning of a given taxable year shall continue as TRP with respect to all matters concerning such year.

The TRP shall prepare and file all required Federal and State partnership income tax returns. Not less than thirty (30) days prior to the return due date (including extensions), the TRP shall submit to each Party for review a copy of the return as proposed.

The TRP shall establish and maintain for each Party a fair market value (“FMV”) capital account and a tax basis capital account. Upon request, the TRP shall submit to each Party along with a copy of any proposed partnership income tax return an accounting of such Party’s FMV capital account as of the end of the return period.

In addition to any obligation under Sec. 2, each Party agrees to furnish to the TRP not later than sixty (90) days before the return due date (including extensions) such information relating to the operations conducted under the Agreement as may be required for the proper preparation of such returns. Similarly, each Party agrees to furnish timely to the TRP, as requested, any information and data necessary for the preparation and/or filing of other required reports and notifications, and for the computation of the capital accounts. As provided in Code §6050K(c), a Party transferring its interest must notify the TRP to allow compliance with Code §6050K(a) (see also Sec. 8.1).

The TRP and the other Party shall use their best efforts to comply with responsibilities outlined in this Section, and with respect to the service as TRP as outlined Sec. 2, and in doing so shall incur no liability to any other Party.

The provisions of this Section 3.5 shall be applicable only if the Tax Partnership does not qualify for the “small partnership exception” from Subchapter C of Chapter 63 of Subtitle A (the “TEFRA rules”) of the Internal Revenue Code of 1986, as amended (the “Code”) or otherwise elects in Section 9.1 to be subject to the TEFRA Rules.

3.5.1 The TRP shall also be the Tax Matters Partner as defined in Code §6231(a) (the “TMP”) and references to the TRP shall then include references to the TMP.

3.5.2 The TMP shall not be required to incur any expenses for the preparation for, or pursuance of, administrative or judicial proceedings, unless the Parties agree on a method for sharing such expenses.

3.5.3 The Parties shall furnish the TMP, within two weeks from the receipt of the request, the information the TMP may reasonably request to comply with the requirements on furnishing information to the Internal Revenue Service.

3.5.4 The TMP shall not agree to any extension of the statute of limitations for making assessments on behalf of the Tax Partnership without first obtaining the written consent of all Parties. The TMP shall not bind any other Party to a settlement agreement in tax audits without obtaining the written concurrence of any such Party.

3.5.5 Any Party who enters in a settlement agreement with the Secretary of the Treasury with respect to any “partnership items,” as defined in Code §6231(a)(3), shall notify the other Parties of the terms within ninety (90) days from the date of such settlement.

3.5.6 If any Party intends to file a notice of inconsistent treatment under Code §6222(b), such Party shall, prior to the filing of such notice, notify the TMP of the (actual or potential) inconsistency of the Party’s intended treatment of a partnership item with the treatment of that item by the Tax Partnership. Within one week of receipt the TMP shall remit copies of such notification to the other Parties. If an inconsistency notice is filed solely because a Party has not received a Schedule K-1 in time for filing of its income tax return, the TMP need not be notified.

3.5.7 No Party shall file pursuant to Code §6227 a request for an administrative adjustment of partnership items (a “RFAA”) without first notifying all other Parties. If all other Parties agree with the requested adjustment, the TMP shall file the RFAA on behalf of the Tax Partnership. If unanimous consent is not obtained within thirty (30) days from such notice, or within the period required to timely file the RFAA, if shorter, any Party, including the TMP, may file a RFAA on its own behalf.

3.5.8 Any Party intending to file with respect to any partnership item, or any other tax matter involving the Tax Partnership, a petition under Code § §6226, 6228, or any other provision, shall notify the other Parties prior to such filing of the nature of the contemplated proceeding. If the TMP is the Party intending to file such petition, such notice shall be given within a reasonable time to allow the other Parties to participate in the choice of the forum for such petition. If the Parties do not agree on the appropriate forum, then the forum shall be chosen by majority vote. Each Party shall have a vote in accordance with its percentage interest in the Tax Partnership for the year under audit. If a majority cannot agree, the TMP shall choose the forum. If a Party intends to seek review of any court decision rendered as a result of such proceeding, the Party shall notify the other Parties prior to seeking such review.

For both income tax return and capital account purposes, the Tax Partnership shall elect:

4.1.1. to deduct when incurred intangible drilling and development costs (“IDC”);

4.1.2. to use the maximum allowable accelerated tax method and the shortest permissible tax life for depreciation;

and the Tax Partnership shall also make any elections as specially noted in Sec. 9.1, below.

Solely for FMV capital account purposes, depletion shall be calculated by using simulated cost depletion within the meaning of Treas. Reg.§1.704-1(b)(2)(iv)(k)(2), unless the use of simulated percentage depletion is elected in Sec. 9.1, below. The simulated cost depletion allowance shall be determined under the principles of Code §612 and be based on the FMV capital account basis of each property. Solely for purposes of this calculation, remaining reserves shall be determined consistently by the TRP.

4.3.1. The Parties agree not to elect to be excluded from the application of Subchapter K of Chapter 1 of the Code. The TRP shall notify all Parties of an intended election to be excluded from the application of Subchapter K of Chapter 1 of the Code not later than sixty (60) days prior to the filing date or the due date (including extensions) for the Federal partnership income tax return, whichever comes earlier. Even after an effective election-out, the TRP’s rights and obligations, other than the relief from tax return filing obligations of the Tax Partnership, shall continue.

4.3.2. After an election-out, to avoid an unintended impairment of the election-out: The Parties will avoid, without prior coordination, any operational changes which would terminate the qualification for the election-out status; all Parties will monitor the continuing qualification of the Tax Partnership for the election-out status and will notify the other Parties if, in their opinion, a change in operations will jeopardize the election-out; and, all Parties will use, unless agreed to by them otherwise, the cumulative gas balancing method as described in Treas. Reg. §1.761-2(d)(3).

Future elections, in addition to or in amendment of those in this Exhibit, must be approved by the affirmative consent of the Parties.

The provisions of this Sec. 5 and any other provisions of the TPPs relating to the maintenance of the capital accounts are intended to comply with Treas. Reg. §1.704-1(b) and shall be interpreted and applied in a manner consistent with such regulations.

The respective capital contributions of each Party to the Tax Partnership shall be (a) each Party’s interest in the oil and gas lease(s), including all associated lease and well equipment, committed to the Tax Partnership, and (b) all amounts of money paid by each Party in connection with the acquisition, exploration, development, and operation of the lease(s), and all other costs characterized as contributions or expenses borne by such Party under the Agreement. The contribution of the leases and any other properties committed to the Tax Partnership shall be made by each Party’s agreement to hold legal title to its interest in such leases or other property as nominee of the Tax Partnership.

(i) the amount of money and the FMV (as of the date of contribution) of any property contributed by such Party to the Tax Partnership (net of liabilities assumed by the Tax Partnership or to which the contributed property is subject);

(ii) that Party’s share of Tax Partnership items of income or gain, allocated in accordance with Sec. 6.1; and

(i) the amount of money and the FMV of property distributed to a Party (net of liabilities assumed by such Party or to which the property is subject);

(ii) that Party’s Sec. 6.1 allocated share of Tax Partnership loss and deductions, or items thereof; and,

5.2.3. “FMV” when it applies to property contributed by a Party to the Tax Partnership shall be assumed, for purposes of 5.2.1, to equal the adjusted tax basis, as defined in Code §1011, of that property unless the Parties agree otherwise as indicated in Sec. 9.1.

5.2.4. As provided in Treas. Reg. §1.704-1(b)(2)(iv)(e), upon distribution of Tax Partnership property to a Party the capital accounts will be adjusted to reflect the manner in which the unrealized income, gain, loss and deduction inherent in distributed property (not previously reflected in the FMV capital accounts) would be allocated among the Parties if there were a taxable disposition of such property at its FMV as of the time of distribution. Furthermore, if so agreed to in Sec. 9.1, pursuant to the rules of Treas. Reg. § 1.704-1(b)(2)(iv)(f), the FMV capital accounts shall be revalued at certain times to reflect value changes of the Tax Partnership property.

Each item of income, gain, loss, or deduction shall be allocated to each Party as follows:

6.1.1. Actual or deemed income from the sale, exchange, distribution or other disposition of production shall be allocated to the Party entitled to such production or the proceeds from the sale of such production. The amount received from the sale of production and the amount of the FMV of production taken in kind by the Parties are deemed to be identical; accordingly, such items may be omitted from the adjustments made to the Parties’ FMV capital accounts.

6.1.2. Exploration cost, IDC, operating and maintenance cost shall be allocated to each Party in accordance with its respective contribution, or obligation to contribute, to such cost.

6.1.3. Depreciation shall be allocated to each Party in accordance with its contribution, or obligation to contribute, to the cost of the underlying asset.

6.1.4. Simulated depletion shall be allocated to each Party in accordance with its FMV capital account adjusted basis in each oil and gas property of the Tax Partnership.

6.1.5. Loss (or simulated loss) upon the sale, exchange, distribution, abandonment or other disposition of depreciable or depletable property shall be allocated to the Parties in the ratio of their respective FMV capital account adjusted bases in the depreciable or depletable property.

6.1.6. Gain (or simulated gain) upon the sale, exchange, distribution, or other disposition of depreciable or depletable property shall be allocated to the Parties so that the FMV capital account balances of the Parties will most closely reflect their respective percentage or fractional interests in such property under the Agreement.

6.1.7. Costs or expenses of any other kind shall be allocated to each Party in accordance with its respective contribution, or obligation to contribute, to such costs or expense.

6.1.8. Any other income item shall be allocated to the Parties in accordance with the manner in which such income is realized by each Party.

6.2.1. Unless otherwise expressly provided in this Sec. 6.2, the allocations of the Tax Partnership’s items of income, gain, loss, or deduction for tax return and tax basis capital account purposes shall follow the principles of the allocations under Sec. 6.1. However, the Tax Partnership’s gain or loss on the taxable disposition of a Tax Partnership property in excess of the gain or loss under Sec. 6.1, if any, is allocated to the contributing Party to the extent of such Party’s pre-contribution gain or loss.

6.2.2. The Parties recognize that under Code §613A(c)(7)(D) the depletion allowance is to be computed separately by each Party. For this purpose, each Party’s share of the adjusted tax basis in each oil and gas property shall be equal to its contribution to the adjusted tax basis of such property.

6.2.3. Under Code §613A(c)(7)(D) gain or loss on the disposition of an oil and gas property is to be computed separately by each Party. Pursuant to Treas. Reg. §1.704-1(b)(4)(v), the amount realized shall be allocated as follows: (i) an amount that represents recovery of adjusted simulated depletion basis is allocated (without being credited to the FMV capital accounts) to the Parties in the same proportion as the aggregate simulated depletion basis was allocated to such Parties under Sec. 5.2; and (ii) any remaining realization is allocated in accordance with Sec. 6.1.6.

6.2.4. Depreciation shall be allocated to each Party in accordance with its contribution to the adjusted tax basis of the depreciable asset.

6.2.5. In accordance with Treas. Reg. §1.1245-1(e), depreciation recapture shall be allocated, to the extent possible, among the Parties to reflect their prior sharing of the depreciation deductions.

6.2.6. In accordance with the principles of Treas. Reg. §1.1254-5, any recapture of IDC shall be determined and reported by each Party separately. Similarly, any recapture of depletion shall be computed separately by each Party, in accordance with its depletion allowance computed pursuant to Sec. 6.2.2.

6.2.7. For Tax Partnership properties with FMV capital account values different from their adjusted tax bases the Parties intend that the allocations described in this Section 6.2 constitute a “reasonable method” of allocating gain or loss under Treas. Reg. §1.704-3(a)(1).

If checked “Yes” in Sec. 9.1, below, each Party has the right to determine the market for its proportionate share of production. All items of income, deductions, and credits arising from such marketing of production shall be recognized by the Tax Partnership and shall be allocated to the Party whose production is so marketed.

The Tax Partnership shall terminate upon the first to occur of (a) a deemed termination of the Tax Partnership pursuant to Section 708(b)(1)(A) of the Code, (b) the effectiveness of an election by the Parties to be excluded from the application of Subchapter K of Chapter 1 of the Code (if and when all the Parties affirmatively agree to make such an election) or (c) the occurrence of any other event which causes the Tax Partnership to terminate as a matter of law.

7.1.1. Upon termination, as provided in Code §708(b)(1)(A), the business shall be wound-up and concluded, and the assets shall be distributed to the Parties as described below by the end of such calendar year (or, if later, within ninety (90) days after the date of such termination). The assets shall be valued and distributed to the Parties in the order provided in Secs. 7.1.2, 7.5, and 7.7

7.1.2. First, all cash representing unexpended contributions by any Party and any property in which no interest has been earned by any other Party under the Agreement shall be returned to the contributor.

Agreement. These actions are hereafter referred to as the “balancing of the FMV capital accounts” and, when each Party’s FMV capital account balance is equal to the fair market value of its interest under the Agreement, the FMV capital accounts of the Parties shall be referred to as “balanced.”

The FMV of all Tax Partnership properties shall be determined and the gain or loss for each property, which would have resulted if sold at such FMV, shall be allocated in accordance with Secs. 6.1.5 and 6.1.6. If each Party’s FMV capital account balance following such allocation does not correspond to the fair market value of its respective interests under the Agreement, then income, gain, loss, and deduction for the taxable year in which the liquidation occurs shall be reallocated among the Parties to cause, to the maximum extent possible, the ratio of their positive FMV capital account balances to equal the fair market value of their respective interests under the Agreement.

If hereafter a Party has a negative FMV capital account balance, that is a balance of less than zero, in accordance with Treas. Reg. §1.704-1(b)(2)(ii)(b)(3), such Party is obligated to contribute by the end of the taxable year or, if later, within 90 days from the Tax Partnership’s liquidation, an amount of money to the Tax Partnership sufficient to achieve a zero balance FMV capital account (the “Deficit Make-Up Obligation”). Moreover, any Party may contribute an amount of cash to the Tax Partnership to facilitate the balancing of the FMV capital accounts. If after these adjustments the FMV capital accounts are not balanced, Sec. 7.5 shall apply.

7.5.1. If the FMV capital accounts of the Parties are not balanced after the application of Sec. 7.3, (i) a Party may contribute cash in the amount required to cause its FMV capital account to be balanced, and/or (ii) if all Parties agree, any cash or an undivided interest in certain selected properties shall be distributed to any Party whose FMV capital account balance exceeds its interest in the fair market value of the Tax Partnership properties under the Agreement as necessary to cause, following such distribution, all FMV capital accounts to be balanced with respect to the remaining Tax Partnership properties.

7.5.2. Unless Sec.7.5.1 applies, an undivided interest in each and every property shall be distributed to one or more Parties in accordance with their FMV capital accounts.

If a property is to be valued for purposes of balancing the capital accounts and making a distribution under this Sec. 7, the Parties shall first attempt to agree on the FMV of the property; failing such an agreement, the TRP shall cause a nationally recognized independent engineering firm to prepare an appraisal of the FMV of such property.

After the FMV capital accounts of the Parties have been adjusted pursuant to Secs. 7.2 to 7.5, all remaining property and interests then held by the Tax Partnership shall be distributed to the Parties in accordance with their positive FMV capital account balances.

Transfers of Tax Partnership interests shall be governed by the Agreement. A Party transferring its interest, or any part thereof, shall notify the TRP in writing within two (2) weeks after such transfer.

If any Party wishes to sell, farm out or exchange a portion of any property with a third party or contribute its interest in a property to a partnership or tax partnership with a third party to the extent allowed under the Agreement, the other Parties shall not unreasonably withhold consent to distribute the property from the Tax Partnership to each Party in proportion to its interest in such property, and shall execute within 30 days such documents as are necessary to effect the distribution; provided that the Party participating in such sale, farm out, exchange or contribution shall fully compensate the other Party or Parties for any accelerated recognition of gain to such Party or Parties resulting from the distribution, including any gain recognized under Code §704(c)(1)(B) and Code §737.

All correspondence relating to the preparation and filing of the Tax Partnership’s income tax returns and capital accounts shall be sent to:

With respect to Sec. 5.2.3, the FMV for the listed properties are determined on Schedule 5.2.3, which shall describe each property that becomes subject to the Agreement and the agreed fair market value of such property at the time it becomes subject to the Agreement.

Attached to and made a part of the BJU Carry and Earning Agreement executed October 31, 2012 but effective as of November 1, 2012 by and between Encana Oil &Gas (USA) Inc. and Nucor Energy Holdings Inc.

THIS AGREEMENT is entered into by and between Encana Oil & Gas (USA) Inc. (“Encana”) and Nucor Energy Holdings Inc. (“Nucor”), with Encana being also referred to as “Operator.” Nucor is the Non-operator herein. Encana and Nucor may be referred to herein individually as a “party” and together as the “parties.”

WHEREAS, the parties to this agreement are owners of the Carry Wells and/or Head’s Up Wells designated and drilled pursuant to the BJU Carry and Earning Agreement executed October 31, 2012 but effective November 1, 2012 between the parties and the parties hereto have reached an agreement regarding the production of Oil and Gas from the Carry Wells and/or Head’s Up Wells as hereinafter provided.

As used in this agreement, the following words and terms shall have the meanings here ascribed to them:

A. The term “AFE” shall mean an Authority for Expenditure prepared by a party to this agreement for the purpose of estimating the costs to be incurred in conducting an operation hereunder.

B. The term “Completion” or “Complete” shall mean a single operation intended to complete a well as a producer of Oil and Gas in one or more Zones, including, but not limited to, the setting of production casing, perforating, well stimulation and production testing conducted in such operation.

C. The term “Contract Area” shall mean the area described in Exhibit “A”.

D. The term “Deepen” shall mean a single operation whereby a well is drilled to an objective Zone below the deepest Zone in which the well was previously drilled, or below the Deepest Zone proposed in the associated AFE, whichever is the lesser.

E. The terms “Drilling Party” and “Consenting Party” shall mean a party who agrees to join in and pay its share of the cost of any operation conducted under the provisions of this agreement.

F. The term “Drilling Unit” shall mean the area fixed for the drilling of one well by order or rule of any state or federal body having authority. If a Drilling Unit is not fixed by any such rule or order, a Drilling Unit shall be the drilling unit as established by the pattern of drilling in the Contract Area unless fixed by express agreement of the Drilling Parties.

G. The term “Drillsite” shall mean the Oil and Gas Lease or Oil and Gas Interest on which a Carry Well and/or Head’s Up Well is to be located

H. The term “Initial Well” shall mean the well required to be drilled by the parties hereto as provided in Article VI.A.

I. The term “Non-Consent Well” shall mean a well in which less than all parties have conducted an operation as provided in Article VI.B.2.

J. The terms “Non-Drilling Party” and “Non-Consenting Party” shall mean a party who elects not to participate in a proposed operation.

K. The term “Oil and Gas” shall mean oil, gas, casinghead gas, gas condensate, and/or all other liquid or gaseous hydrocarbons and other marketable substances produced therewith, unless an intent to limit the inclusiveness of this term is specifically stated.

L. The term “Oil and Gas Interests” or “Interests” shall mean unleased fee and mineral interests in Oil and Gas in tracts of land lying within the Contract Area which are owned by parties to this agreement.

M. The terms “Oil and Gas Lease,” “Lease” and “Leasehold” shall mean the oil and gas leases or interests therein covering tracts of land lying within the Contract Area which are owned by the parties to this agreement.

N. The term “Plug Back” shall mean a single operation whereby a deeper Zone is abandoned in order to attempt a Completion in a shallower Zone.

O. The term “Recompletion” or “Recomplete” shall mean an operation whereby a Completion in one Zone is abandoned in order to attempt a Completion in a different Zone within the existing wellbore.

P. The term “Rework” shall mean an operation conducted in the wellbore of a well after it is Completed to secure, restore, or improve production in a Zone which is currently open to production in the wellbore. Such operations include, but are not limited to, well stimulation operations but exclude any routine repair or maintenance work or drilling, Sidetracking, Deepening, Completing, Recompleting, or Plugging Back of a well.

Q. The term “Sidetrack” shall mean the directional control and intentional deviation of a well from vertical so as to change the bottom hole location unless done to straighten the hole or drill around junk in the hole to overcome other mechanical difficulties.

R. The term “Zone” shall mean a stratum of earth containing or thought to contain a common accumulation of Oil and Gas separately producible from any other common accumulation of Oil and Gas.

S. “BJU Carry and Earning Agreement” shall mean that certain BJU Carry and Earning Agreement made by and between Encana and Nucor, executed October 31, 2012 but effective November 1, 2012.

T. “Carry Wells” and/or “Head’s Up Wells” shall have the same meaning as provided in the BJU Carry and Earning Agreement.

Unless the context otherwise clearly indicates, words used in the singular include the plural, the word “person” includes natural and artificial persons, the plural includes the singular, and any gender includes the masculine, feminine, and neuter. Capitalized terms that are not otherwise defined herein shall have the same meaning as in the BJU Carry and Earning Agreement.

The following exhibits, as indicated below and attached hereto, are incorporated in and made a part hereof:

If Encana owns an Oil and Gas Interest in the Contract Area that is not subject to an Oil and Gas Lease, that Interest shall be subject to a royalty payable to Encana of 16.67%.

Unless changed by other provisions, all costs and liabilities incurred in operations under this agreement shall be borne and paid, and all equipment and materials acquired in operations on the Contract Area shall be owned, by the parties as their interests are set forth in Exhibit “A.” In the same manner, the parties shall also own all production of Oil and Gas from the Contract Area subject, however, to the payment of royalties and other burdens on production as described hereafter.

Regardless of which party has contributed any Oil and Gas Lease or Oil and Gas Interest on which royalty or other burdens may be payable and except as otherwise expressly provided in this agreement, each party shall pay or deliver, or cause to be paid or delivered, all burdens on its share of the production up to, but not in excess of, of those burdens SEE ARTICLE XVI.D. and shall indemnify, defend and hold the other parties free from any liability therefore. Except as otherwise expressly provided in this agreement, if any party has contributed hereto any Lease or Interest which is burdened with any royalty, overriding royalty, production payment or other burden on production in excess of the amounts stipulated above, such party so burdened shall assume and alone bear all such excess obligations and shall indemnify, defend and hold the other parties hereto harmless from any and all claims attributable to such excess burden. However, so long as the Drilling Unit for the productive Zone(s) is identical with the Contract Area, each party shall pay or deliver, or cause to be paid or delivered, all burdens on production from the Contract Area due under the terms of the Oil and Gas Lease(s) which such party has contributed to this agreement, and shall indemnify, defend and hold the other parties free from any liability therefore.

No party shall ever be responsible, on a price basis higher than the price received by such party, to any other party’s lessor or royalty owner, and if such other party’s lessor or royalty owner should demand and receive settlement on a higher price basis, the party contributing the affected Lease shall bear the additional royalty burden attributable to such higher price.

Nothing contained in this Article III.B. shall be deemed an assignment or cross-assignment of interests covered hereby, and in the event two or more parties contribute to this agreement jointly owned Leases, the parties’ undivided interests in said Leaseholds shall be deemed separate leasehold interests for the purposes of this agreement.

If any party has contributed hereto a Lease or Interest that is burdened with an assignment of production given as security for the payment of money, or if, after the effective date of the BJU Carry and Earning Agreement, any party creates an overriding royalty, production payment, net profits interest, assignment of production or other burden payable out of production attributable to its working interest hereunder, such burden shall be deemed a “Subsequently Created Interest.” Further, regardless of the date such burden was created, any overriding royalty, production payment, net profits interest, or other burden payable out of production and owned by Operator or its Affiliates shall be treated as a Subsequently Created Interest unless such burden is disclosed on Schedule 5.2 to the BJU Carry and Earning Agreement~~. to the extent such burdens causes the burdens on such party’s Lease or Interest to exceed the amount stipulated in Article III.B. above~~.

The party whose interest is burdened with the Subsequently Created Interest (the “Burdened Party”) shall assume and alone bear, pay and discharge the Subsequently Created Interest and shall indemnify, defend and hold harmless the other parties from and against any liability therefore. Further, if the Burdened Party fails to pay, when due, its share of expenses chargeable hereunder, all provisions of Article VII.B. shall be enforceable against the Subsequently Created Interest in the same manner as they are enforceable against the working interest of the Burdened Party. If the Burdened Party is required under this agreement to assign or relinquish to any other party, or parties, all or a portion of its working interest and/or the production attributable thereto, said other party, or parties, shall receive said assignment and/or production free and clear of said Subsequently Created Interest, and the Burdened Party shall indemnify, defend and hold harmless said other party, or parties, from any and all claims and demands for payment asserted by owners of the Subsequently Created Interest.

Title examination shall be made on the Drillsite of any proposed well prior to commencement of drilling operations and, if a majority in interest of the Drilling Parties so request or Operator so elects, title examination shall be made on the entire Drilling Unit, or maximum anticipated Drilling Unit, of the well. The opinion will include the ownership of the working interest, minerals, royalty, overriding royalty and production payments under the applicable Leases. Each party contributing Leases and/or Oil and Gas Interests to be included in the Drillsite or Drilling Unit, if appropriate, shall furnish to Operator all abstracts (including federal lease status reports), title opinions, title papers and curative material in its possession free of charge. All such information not in the possession of or made available to Operator by the parties, but necessary for the examination of the title, shall be obtained by Operator. Operator shall cause title to be examined by attorneys on its staff or by outside attorneys. Copies of all title opinions shall be furnished to each Drilling Party. Costs incurred by Operator in procuring abstracts, fees paid outside attorneys for title examination (including preliminary, supplemental, shut-in royalty opinions and division order title opinions) and other direct charges as provided in Exhibit “C” shall be borne by the Drilling Parties in the proportion that the interest of each Drilling Party bears to the total interest of all Drilling Parties as such interests appear in Exhibit “A.” Operator shall make no charge for services rendered by its staff attorneys or other personnel in the performance of the above functions.

Operator shall be responsible for using its reasonable efforts to secure curative matter and pooling amendments or agreements required in connection with Leases or Oil and Gas Interests contributed by such party. Operator shall be responsible for the preparation and recording of pooling designations or declarations and communitization agreements as well as the conduct of hearings before governmental agencies for the securing of spacing or pooling orders or any other orders necessary or appropriate to the conduct of operations hereunder. This shall not prevent any party from appearing on its own behalf at such hearings. Costs incurred by Operator, including fees paid to outside attorneys, which are associated with hearings before governmental agencies, and which costs are necessary and proper for the activities contemplated under this agreement, shall be direct charges to the joint account and shall not be covered by the administrative overhead charges as provided in Exhibit “C.”

Operator shall make no charge for services rendered by its staff attorneys or other personnel in the performance of the above functions.

No well shall be drilled on the Contract Area until after (1) the title to the Drillsite or Drilling Block, if appropriate, has been examined as above provided, and (2) the title has been approved by the Operator, examining attorney or title has been accepted by all of the Drilling Parties in such well.

1. Failure of Title: Should any Oil and Gas Interest or Oil and Gas Lease be lost through failure of title, which results in a reduction of interest from that shown on Exhibit “A” the party credited with contributing the affected Lease or Interest (including, if applicable, a successor in interest to such party) shall have ninety (90) days from final determination of title failure to acquire a new lease or other instrument curing the entirety of the title failure, which acquisition will not be subject to Article VIII.B., and failing to do so, this agreement, nevertheless, shall continue in force as to all remaining Oil and Gas Leases and Interests; and,

(a) The party credited with contributing the Oil and Gas Lease or Interest affected by the title failure (including, if applicable, a successor in interest to such party) shall bear alone the entire loss and it shall not be entitled to recover from Operator or the other parties any development or operating costs which it may have previously paid or incurred, but there shall be no additional liability on its part to the other parties hereto by reason of such title failure;

(b) There shall be no retroactive adjustment of expenses incurred or revenues received from the operation of the Lease or Interest which has failed, but the interests of the parties contained on Exhibit “A” shall be revised on an acreage basis, as of the time it is determined finally that title failure has occurred, so that the interest of the party whose Lease or Interest is affected by the title failure will thereafter be reduced in the Contract Area by the amount of the Lease or Interest failed;

(c) If the proportionate interest of the other parties hereto in any producing well previously drilled on the Contract Area is increased by reason of the title failure, the party who bore the costs incurred in connection with such well attributable to the Lease or Interest which has failed shall receive the proceeds attributable to the increase in such interest (less costs and burdens attributable thereto) until it has been reimbursed for unrecovered costs paid by it in connection with such well attributable to such failed Lease or Interest;

(d) Should any person not a party to this agreement, who is determined to be the owner of any Lease or Interest which has failed, pay in any manner any part of the cost of operation, development, or equipment, such amount shall be paid to the party or parties who bore the costs which are so refunded;

(e) Any liability to account to a person not a party to this agreement for prior production of Oil and Gas which arises by reason of title failure shall be borne severally by each party (including a predecessor to a current party) who received production for which such accounting is required based on the amount of such production received, and each such party shall severally indemnify, defend and hold harmless all other parties hereto for any such liability to account;

(f) No charge shall be made to the joint account for legal expenses, fees or salaries in connection with the defense of the Lease or Interest claimed to have failed, but if the party contributing such Lease or Interest hereto elects to defend its title it shall bear all expenses in connection therewith; and

(g) If any party is given credit on Exhibit “A” to a Lease or Interest which is limited solely to ownership of an interest in the wellbore of any well or wells and the production therefrom, such party’s absence of interest in the remainder of the Contract Area shall be considered a Failure of Title as to such remaining Contract Area unless that absence of interest is reflected on Exhibit “A”.

2. Loss by Non-Payment or Erroneous Payment of Amount Due: If, through mistake or oversight, any rental, shut-in well payment, minimum royalty or royalty payment, or other payment necessary to maintain all or a portion of an Oil and Gas Lease or interest is not paid or is erroneously paid, and as a result a Lease or Interest terminates, there shall be no monetary liability against the party who failed to make such payment. Unless the party who failed to make the required payment secures a new Lease or Interest covering the same interest within ninety (90) days from the discovery of the failure to make proper payment, which acquisition will not be subject to Article VIII.B., the interests of the parties reflected on Exhibit “A” shall be revised on an acreage basis, effective as of the date of termination of the Lease or Interest involved, and the party who failed to make proper payment will no longer be credited with an interest in the Contract Area on account of ownership of the Lease or Interest which has terminated. If the party who failed to make the required payment shall not have been fully reimbursed, at the time of the loss, from the proceeds of the sale of Oil and Gas attributable to the lost Lease or Interest, calculated on an acreage basis, for the development and operating costs previously paid on account of such Lease or Interest, it shall be reimbursed for unrecovered actual costs previously paid by it (but not for its share of the cost of any dry hole previously drilled or wells previously abandoned) from so much of the following as is necessary to effect reimbursement:

(a) Proceeds of Oil and Gas produced prior to termination of the Lease or Interest, less operating expenses and lease burdens chargeable hereunder to the person who failed to make payment, previously accrued to the credit of the lost Lease or Interest, on an acreage basis, up to the amount of unrecovered costs;

(b) Proceeds of Oil and Gas, less operating expenses and lease burdens chargeable hereunder to the person who failed to make payment, up to the amount of unrecovered costs attributable to that portion of Oil and Gas thereafter produced and marketed (excluding production from any wells thereafter drilled) which, in the absence of such Lease or Interest termination, would be attributable to the lost Lease or Interest on an acreage basis and which as a result of such Lease or Interest termination is credited to other parties, the proceeds of said portion of the Oil and Gas to be contributed by the other parties in proportion to their respective interests reflected on Exhibit “A”; and,

(c) Any monies, up to the amount of unrecovered costs, that may be paid by any party who is, or becomes, the owner \of the Lease or Interest lost, for the privilege of participating in the Contract Area or becoming a party to this agreement.

3. Other Losses: All losses of Leases or Interests committed to this agreement, other than those set forth in Articles IV.B.1.and IV.B.2. above, shall be joint losses and shall be borne by all parties in proportion to their interests shown on Exhibit “A.” This shall include but not be limited to the loss of any Lease or Interest through failure to develop or because express or implied covenants have not been performed (other than performance which requires only the payment of money), and the loss of any Lease by expiration at the end of its primary term if it is not renewed or extended. There shall be no readjustment of interests in the remaining portion of the Contract Area on account of any joint loss.

4. Curing Title: In the event of a Failure of Title under Article IV.B.1. or a loss of title under Article IV.B.2. above, any Lease or Interest acquired by any party hereto (other than the party whose interest has failed or was lost) during the ninety (90) day period provided by Article IV.B.1. and Article IV.B.2. above covering all or a portion of the interest that has failed or was lost shall be offered at cost to the party whose interest has failed or was lost, and the provisions of Article VIII.B. shall not apply to such acquisition.

Encana shall be the Operator of the Contract Area and shall conduct and direct and have full control of all operations in the Contract Area as permitted and required by, and within the limits this agreement. In its performance of services hereunder for the Non-Operators, Operator shall be an independent contractor not subject to the control or direction of the Non-Operators except as to the type of operation to be undertaken in accordance with the election procedures contained in this agreement. Operator shall not be deemed, or hold itself out as, the agent of the Non- Operators with authority to bind them to any obligation or liability assumed or incurred by Operator as to any third party. Operator shall conduct its activities under this agreement as a reasonable prudent operator, in a good and workmanlike manner, with due diligence and dispatch, in accordance with good oilfield practice, and in compliance with applicable law and regulation, but in no event shall it have any liability as Operator to the other parties for losses sustained or liabilities incurred except such as may result from gross negligence or willful misconduct.

1. Resignation or Removal of Operator: Operator may resign at any time by giving written notice thereof to Non-Operators. If Operator terminates its legal existence, no longer owns an interest hereunder in the Contract Area, or is no longer capable of serving as Operator, Operator shall be deemed to have resigned without any action by Non-Operators, except the selection of a successor. Operator may be removed only for good cause by the affirmative vote of Non-Operators owning a majority interest based on ownership as shown on Exhibit “A”, as appropriate in context, remaining after excluding the voting interest of Operator; such vote shall not be deemed effective until a written notice has been delivered to the Operator by a Non-Operator detailing the alleged default and Operator has failed to cure the default within thirty (30) days from its receipt of the notice or, if the default concerns an operation then being conducted, within forty-eight (48) hours of its receipt of the notice. For purposes hereof, “good cause” shall mean not only gross negligence or willful misconduct but also the material breach of or inability to meet the standards of operation contained in Article V.A. or material failure or inability to perform its obligations under this agreement.

Subject to Article VII.D.1., such resignation or removal shall not become effective until 7:00 o’clock A.M. on the first day of the calendar month following the expiration of ninety (90) days after the giving of notice of resignation by Operator or action by the Non-Operators to remove Operator, unless a successor Operator has been selected and assumes the duties of Operator at an earlier date. Operator, after effective date of resignation or removal, shall be bound by the terms hereof as a Non-Operator. A change of a corporate name or structure of Operator or transfer of Operator’s interest to any single subsidiary, parent or successor corporation shall not be the basis for removal of Operator.

2. Selection of Successor Operator: Upon the resignation or removal of Operator under any provision of this agreement, a successor Operator shall be selected by the parties. The successor Operator shall be selected from the parties owning an interest in the Contract Area at the time such successor Operator is selected. The successor Operator shall be selected by the affirmative vote of two (2) or more parties owning a majority interest based on ownership as shown on Exhibit “A” , as appropriate in context; provided, however, if an Operator which has been removed or is deemed to have resigned fails to vote, or votes only to succeed itself, the successor Operator shall be selected by the affirmative vote of the party or parties owning a majority interest based on ownership as shown on Exhibit “A” , as appropriate in context, remaining after excluding the voting interest of the Operator that was removed or resigned. The former Operator shall promptly deliver to the successor Operator all records and data relating to the operations conducted by the former Operator to the extent such records and data are not already in the possession of the successor operator. Any cost of obtaining or copying the former Operator’s records and data shall be charged to the joint account.

3. Effect of Bankruptcy: If Operator becomes insolvent, bankrupt or is placed in receivership, it shall be deemed to have resigned without any action by Non-Operators, except the selection of a successor. If a petition for relief under the federal bankruptcy laws is filed by or against Operator, and the removal of Operator is prevented by the federal bankruptcy court, all Non-Operators and Operator shall comprise an interim operating committee to serve until Operator has elected to reject or assume this agreement pursuant to the Bankruptcy Code, and an election to reject this agreement by Operator as a debtor in possession, or by a trustee in bankruptcy, shall be deemed a resignation as Operator without any action by Non-Operators, except the selection of a successor. During the period of time the operating committee controls operations, all actions shall require the approval of two (2) or more parties owning a majority interest based on ownership as shown on Exhibit “A.”

In the event there are only two (2) parties to this agreement, during the period of time the operating committee controls operations, a third party acceptable to Operator, Non-Operator and the federal bankruptcy court shall be selected as a member of the operating committee, and all actions shall require the approval of two (2) members of the operating committee without regard for their interest in the Contract Area based on Exhibit “A” , as appropriate in context.

The number of employees or contractors used by Operator in conducting operations hereunder, their selection, and the hours of labor and the compensation for services performed shall be determined by Operator, and all such employees or contractors shall be the employees or contractors of Operator.

1. ~~Competitive Rates and Use of Affiliates:~~ All wells drilled on the Contract Area shall be drilled on a competitive contract basis at the usual rates prevailing in the area. If it so desires, Operator may employ its own tools and equipment in the drilling of wells, but its charges therefor shall not exceed the prevailing rates in the area and the rate of such charges shall be agreed upon by the parties in writing before drilling operations are commenced, and such work shall be performed by Operator under the same terms and conditions as are customary and usual in the area in contracts of independent contractors who are doing work of a similar nature. All work performed or materials supplied by affiliates or related parties of Operator shall be performed or supplied at competitive rates, pursuant to written agreement, and in accordance with customs and standards prevailing in the industry.

2. Discharge of Joint Account Obligations: Except as herein otherwise specifically provided, Operator shall promptly pay and discharge expenses incurred in the development and operation of the Contract Area pursuant to this agreement and shall charge each of the parties hereto with their respective proportionate shares upon the expense basis provided in Exhibit “C.” Operator shall keep an accurate record of the joint account hereunder, showing expenses incurred and charges and credits made and received.

3. Protection from Liens: Operator shall pay, or cause to be paid, as and when they become due and payable, all accounts of contractors and suppliers and wages and salaries for services rendered or performed, and for materials supplied on, to or in respect of the Contract Area or any operations for the joint account thereof, and shall keep the Contract Area free from liens and encumbrances resulting therefrom except for those resulting from a bona fide dispute as to services rendered or materials supplied.

4. Custody of Funds: Operator shall hold for the account of the Non-Operators any funds of the Non-Operators advanced or paid to the Operator, either for the conduct of operations hereunder or as a result of the sale of production from the Contract Area, and such funds shall remain the funds of the Non-Operators on whose account they are advanced or paid until used for their intended purpose or otherwise delivered to the Non-Operators or applied toward the payment of debts as provided in Article VII.B. Nothing in this paragraph shall be construed to establish a fiduciary relationship between Operator and Non-Operators for any purpose other than to account for Non-Operator funds as herein specifically provided. Nothing in this paragraph shall require the maintenance by Operator of separate accounts for the funds of Non-Operators unless the parties otherwise specifically agree.

5. Access to Contract Area and Records: Operator shall, except as otherwise provided herein, permit each Non-Operator or its duly authorized representative, at the Non-Operator’s sole risk and cost, full and free access at all reasonable times to all operations of every kind and character being conducted for the joint account on the Contract Area and to the records of operations conducted thereon or production therefrom, including Operator’s books and records relating thereto. Such access rights shall not be exercised in a manner interfering with Operator’s conduct of an operation hereunder and shall not obligate Operator to furnish any geologic or geophysical data of an interpretive nature unless the cost of preparation of such interpretive data was charged to the joint account. Operator will furnish to each Non-Operator upon request copies of any and all reports and information obtained by Operator in connection with production and related items, including, without limitation, meter and chart reports, production purchaser statements, run tickets and monthly gauge reports, but excluding purchase contracts and pricing information to the extent not applicable to the production of the Non-Operator seeking the information. Any audit of Operator’s records relating to amounts expended and the appropriateness of such expenditures shall be conducted in accordance with the audit protocol specified in Exhibit “C.”

6. Filing and Furnishing Governmental Reports: Operator will file, and upon written request promptly furnish copies to each requesting Non-Operator not in default of its payment obligations, all operational notices, reports or applications required to be filed by local, State, Federal or Indian agencies or authorities having jurisdiction over operations hereunder. Each Non-Operator shall provide to Operator on a timely basis all information necessary to Operator to make such filings.

7. Drilling and Testing Operations: The following provisions shall apply to each well drilled / completed, reworked, recompleted, sidetracked or plugged back hereunder~~, including but not limited to the Initial Well:~~

(a) Operator will promptly advise Non-Operators of the date on which the well is spudded, or the date on which drilling operations are commenced.

(b) Operator will send to Non-Operators such reports, test results and notices regarding the progress of operations on the well as the Non-Operators shall reasonably request, including, but not limited to, daily drilling reports, completion reports, and well logs.

(c) Operator shall adequately test all Zones encountered which may reasonably be expected to be capable of producing Oil and Gas in paying quantities as a result of examination of the electric log or any other logs or cores or tests conducted hereunder.

8. Cost Estimates: Upon request of any Consenting Party, Operator shall furnish estimates of current and cumulative costs incurred for the joint account at reasonable intervals during the conduct of any operation pursuant to this agreement. Operator shall not be held liable for errors in such estimates so long as the estimates are made in good faith.

9. Insurance: At all times while operations are conducted hereunder, Operator shall comply with the workers compensation law of the state where the operations are being conducted; provided, however, that Operator may be a self- insurer for liability under said compensation laws in which event the only charge that shall be made to the joint account shall be as provided in Exhibit “C.” Operator shall also carry or provide insurance for the benefit of the joint account of the parties as outlined in Exhibit “D” attached hereto and made a part hereof. Operator shall require all contractors engaged in work on or for the Contract Area to comply with the workers compensation law of the state where the operations are being conducted and to maintain such other insurance as Operator may require.

In the event automobile liability insurance is specified in said Exhibit “D,” or subsequently receives the approval of the parties, no direct charge shall be made by Operator for premiums paid for such insurance for Operator’s automotive equipment.

~~On or before the~~ ~~day of~~ , , ~~Operator shall commence the drilling of the Initial Well at the following location:~~

~~and shall thereafter continue the drilling of the well with due diligence to~~

The drilling of the Initial Well and the Head’s Up therein by all parties is obligatory, subject to Article VI.C.1. as to participation in Completion operations and Article VI.F. as to termination of operations and Article XI as to occurrence of force majeure.

1. Proposed Operations: If any party hereto should desire to drill a Head’s Up well on the Contract Area, or if any party should desire to Rework, Sidetrack, Deepen, Recomplete or Plug Back a dry hole or a well no longer capable of producing in paying quantities (whether a Carry Well or a Head’s Up Well) in which such party has not otherwise relinquished its interest in the proposed objective Zone under this agreement, the party desiring to drill, Rework, Sidetrack, Deepen, Recomplete or Plug Back such a well shall give written notice of the proposed operation to the parties who have not otherwise relinquished their interest in such objective Zone under this agreement and to all other parties in the case of a proposal for Sidetracking or Deepening, specifying the work to be performed, the location, proposed depth, objective Zone and the estimated cost of the operation. The parties to whom such a notice is delivered shall have thirty (30) days after receipt of the notice within which to notify the party proposing to do the work whether they elect to participate in the cost of the proposed operation. If a drilling rig is on location, notice of a proposal to Rework, Sidetrack, Recomplete, Plug Back or Deepen may be given by telephone and the response period shall be limited to forty- eight (48) hours~~, exclusive of Saturday, Sunday and legal holidays~~. Failure of a party to whom such notice is delivered to reply within the period above fixed shall constitute an election by that party not to participate in the cost of the proposed operation. Any proposal by a party to conduct an operation conflicting with the operation initially proposed shall be delivered to all parties within the time and in the manner provided in Article VI.B.6.

If all parties to whom such notice is delivered elect to participate in such a proposed operation, the parties shall be contractually committed to participate therein provided such operations are commenced within the time period hereafter set forth, and Operator shall, no later than ninety (90) days after expiration of the notice period of thirty (30) days (or as promptly as practicable after the expiration of the forty-eight (48) hour period when a drilling rig is on location, as the case may be), actually commence the proposed operation and thereafter complete it with due diligence at the risk and expense of the parties participating therein; provided, however, said commencement date may be extended upon written notice of same by Operator to the other parties, for a period of up to thirty (30) additional days if, in the sole opinion of Operator, such additional time is reasonably necessary to obtain permits from governmental authorities, surface rights (including rights-of- way) or appropriate drilling equipment, or to complete title examination or curative matter required for title approval or acceptance. If the actual operation has not been commenced within the time provided (including any extension thereof as specifically permitted herein or in the force majeure provisions of Article XI) and if any party hereto still desires to conduct said operation, written notice proposing same must be resubmitted to the other parties in accordance herewith as if no prior proposal had been made. Those parties that did not participate in the drilling of a well for which a proposal to Deepen or Sidetrack is made hereunder shall, if such parties desire to participate in the proposed Deepening or Sidetracking operation, reimburse the Drilling Parties in accordance with Article VI.B.4. in the event of a Deepening operation and in accordance with Article VI.B.5. in the event of a Sidetracking operation.

(a) Determination of Participation. If any party to whom such notice is delivered as provided in Article VI.B.1. or VI.C.1. (Option No. 2) elects not to participate in the proposed operation, then, in order to be entitled to the benefits of this Article, the party or parties giving the notice and such other parties as shall elect to participate in the operation shall, no later than ninety (90) days after the expiration of the notice period of thirty (30) days (or as promptly as practicable after the expiration of the forty-eight (48) hour period when a drilling rig is on location, as the case may be) actually commence the proposed operation and complete it with due diligence. Operator shall perform all work for the account of the Consenting Parties; provided, however, if no drilling rig or other equipment is on location, and if Operator is a Non-Consenting Party,

the Consenting Parties shall either: (i) request Operator to perform the work required by such proposed operation for the account of the Consenting Parties, or (ii) designate one of the Consenting Parties as Operator to perform such work provided however, Operator shall not be required to do so. The rights and duties granted to and imposed upon the Operator under this agreement are granted to and imposed upon the party designated as Operator for an operation in which the original Operator is a Non-Consenting Party. Consenting Parties, when conducting operations on the Contract Area pursuant to this Article VI.B.2., shall comply with all terms and conditions of this agreement.

If less than all parties approve any proposed operation, the proposing party, immediately after the expiration of the applicable notice period, shall advise all Parties of the total interest of the parties approving such operation and its recommendation as to whether the Consenting Parties should proceed with the operation as proposed. Each Consenting Party, within forty-eight (48) hours ~~(exclusive of Saturday, Sunday, and legal holidays)~~ after delivery of such notice, shall advise the proposing party of its desire to (i) limit participation to such party’s interest as shown on Exhibit “A” or (ii) carry only its proportionate part (determined by dividing such party’s interest in the Contract Area by the interests of all Consenting Parties in the Contract Area) of Non-Consenting Parties’ interests, or (iii) carry its proportionate part (determined as provided in (ii)) of Non-Consenting Parties’ interests together with all or a portion of its proportionate part of any Non-Consenting Parties’ interests that any Consenting Party did not elect to take. Any interest of Non-Consenting Parties that is not carried by a Consenting Party shall be deemed to be carried by the party proposing the operation if such party does not withdraw its proposal. Failure to advise the proposing party within the time required shall be deemed an election under (i). In the event a drilling rig is on location, notice may be given by telephone, and the time permitted for such a response shall not exceed a total of forty-eight (48) hours ~~(exclusive of Saturday, Sunday and legal holidays)~~. The proposing party, at its election, may withdraw such proposal if there is less than 100% participation and shall notify all parties of such decision within ten (10) days, or within twenty-four (24) hours if a drilling rig is on location, following expiration of the applicable response period. If 100% subscription to the proposed operation is obtained, the proposing party shall promptly notify the Consenting Parties of their proportionate interests in the operation and the party serving as Operator shall commence such operation within the period provided in Article VI.B.1., subject to the same extension right as provided therein.

(b) Relinquishment of Interest for Non-Participation. The entire cost and risk of conducting such operations shall be borne by the Consenting Parties in the proportions they have elected to bear same under the terms of the preceding paragraph. Consenting Parties shall keep the leasehold estates involved in such operations free and clear of all liens and encumbrances of every kind created by or arising from the operations of the Consenting Parties. If such an operation results in a dry hole, then subject to Articles VI.B.6. and VI.E.3., the Consenting Parties shall plug and abandon the well and restore the surface location at their sole cost, risk and expense; provided, however, that those Non-Consenting Parties that participated in the drilling, Deepening or Sidetracking of the well shall remain liable for, and shall pay, their proportionate shares of the cost of plugging and abandoning the well and restoring the surface location insofar only as those costs were not increased by the subsequent operations of the Consenting Parties. If any well drilled, Reworked, Sidetracked, Deepened, Recompleted or Plugged Back under the provisions of this Article results in a well capable of producing Oil and/or Gas in paying quantities, the Operator shall Complete and equip the well on behalf of the Consenting Parties to produce at their sole cost and risk, and shall be operated by it at the expense and for the account of the Consenting Parties. In the event Operator elects not to participate in a Head’s Up Well, Operator shall be entitled to a 2.5% of 8/8ths carried working interest in such well, proportionately reduced if the Parties own less than the full leasehold or mineral interest in such well. Upon commencement of operations for the ~~drilling,~~ Reworking, Sidetracking, Recompleting, Deepening or Plugging Back of any such well by Consenting Parties in accordance with the provisions of this Article, each Non-Consenting Party shall be deemed to have relinquished to Consenting Parties, and the Consenting Parties shall own and be entitled to receive, in proportion to their respective interests, all of such Non- Consenting Party’s interest in the well and share of production therefrom or, in the case of a Reworking, Sidetracking, Deepening, Recompleting or Plugging Back, or a Completion pursuant to Article VI.C.1. Option No. 2, all of such Non- Consenting Party’s interest in the production obtained from the operation in which the Non-Consenting Party did not elect to participate. Such relinquishment shall be effective until the proceeds of the sale of such share, calculated at the well, or market value thereof if such share is not sold (after deducting applicable ad valorem, production, severance, and excise taxes, royalty, overriding royalty and other interests not excepted by Article III.C. payable out of or measured by the production from such well accruing with respect to such interest until it reverts), shall equal the total of the following:

(i) 100 % of each such Non-Consenting Party’s share of the cost of any newly acquired surface equipment beyond the wellhead connections (including but not limited to stock tanks, separators, treaters, pumping equipment and piping), plus 100% of each such Non-Consenting Party’s share of the cost of operation of the well commencing with first production and continuing until each such Non-Consenting Party’s relinquished interest shall revert to it under other provisions of this Article, it being agreed that each Non-Consenting Party’s share of such costs and equipment will be that interest which would have been chargeable to such Non-Consenting Party had it participated in the well from the beginning of the operations; and

(ii) 300 % of (a) that portion of the costs and expenses of drilling*, Reworking, Sidetracking, Deepening, Plugging Back, testing, Completing, and Recompleting, after deducting any cash contributions received under Article VIII.C., and of (b) that portion of the cost of newly acquired equipment in the well (to and including the wellhead connections), which would have been chargeable to such Non-Consenting Party if it had participated therein.

Notwithstanding anything to the contrary in this Article VI.B., if the well does not reach the deepest objective Zone described in the notice proposing the well for reasons other than the encountering of granite or practically impenetrable substance or other condition in the hole rendering further operations impracticable, Operator shall give notice thereof to each Non-Consenting Party who submitted or voted for an alternative proposal under Article VI.B.6. to drill the well to a shallower Zone than the deepest objective Zone proposed in the notice under which the well was drilled, and each such Non- Consenting Party shall have the option to participate in the initial proposed Completion of the well by paying its share of the cost of drilling the well to its actual depth, calculated in the manner provided in Article VI.B.4. (a). If any such Non- Consenting Party does not elect to participate in the first Completion proposed for such well, the relinquishment provisions of this Article VI.B.2. (b) shall apply to such party’s interest.

(c) Reworking, Recompleting or Plugging Back. An election not to participate in the drilling*, Sidetracking or Deepening of a well shall be deemed an election not to participate in any Reworking or Plugging Back operation proposed in such a well, or portion thereof, to which the initial non-consent election applied that is conducted at any time prior to full recovery by the Consenting Parties of the Non-Consenting Party’s recoupment amount. Similarly, an election not to participate in the Completing or Recompleting of a well shall be deemed an election not to participate in any Reworking operation proposed in such a well, or portion thereof, to which the initial non-consent election applied that is conducted at any time prior to full recovery by the Consenting Parties of the Non-Consenting Party’s recoupment amount. Any such Reworking, Recompleting or Plugging Back operation conducted during the recoupment period shall be deemed part of the cost of operation of said well and there shall be added to the sums to be recouped by the Consenting Parties 400% of that portion of the costs of the Reworking, Recompleting or Plugging Back operation which would have been chargeable to such Non-Consenting Party had it participated therein. If such a Reworking, Recompleting or Plugging Back operation is proposed during such recoupment period, the provisions of this Article VI.B. shall be applicable as between said Consenting Parties in said well.

(d) Recoupment Matters. During the period of time Consenting Parties are entitled to receive Non-Consenting Party’s share of production, or the proceeds therefrom, Consenting Parties shall be responsible for the payment of all ad valorem, production, severance, excise, gathering and other taxes, and all royalty, overriding royalty and other burdens applicable to Non-Consenting Party’s share of production not excepted by Article III.C.

In the case of any Reworking, Sidetracking, Plugging Back, Recompleting or Deepening operation, the Consenting Parties shall be permitted to use, free of cost, all casing, tubing and other equipment in the well, but the ownership of all such equipment shall remain unchanged; and upon abandonment of a well after such Reworking, Sidetracking, Plugging Back, Recompleting or Deepening, the Consenting Parties shall account for all such equipment to the owners thereof, with each party receiving its proportionate part in kind or in value, less cost of salvage.

Within ninety (90) days after the completion of any operation under this Article, the party conducting the operations for the Consenting Parties shall furnish each Non-Consenting Party with an inventory of the equipment in and connected to the well, and an itemized statement of the cost of drilling*, Sidetracking, Deepening, Plugging Back, testing, Completing, Recompleting, and equipping the well for production; or, at its option, the operating party, in lieu of an itemized statement of such costs of operation, may submit a detailed statement of monthly billings. Each month thereafter, during the time the Consenting Parties are being reimbursed as provided above, the party conducting the operations for the Consenting Parties shall furnish the Non-Consenting Parties with an itemized statement of all costs and liabilities incurred in the operation of the well, together with a statement of the quantity of Oil and Gas produced from it and the amount of proceeds realized from the sale of the well’s working interest production during the preceding month. In determining the quantity of Oil and Gas produced during any month, Consenting Parties shall use industry accepted methods such as but not limited to metering or periodic well tests. Any amount realized from the sale or other disposition of equipment newly acquired in connection with any such operation which would have been owned by a Non-Consenting Party had it participated therein shall be credited against the total unreturned costs of the work done and of the equipment purchased in determining when the interest of such Non-Consenting Party shall revert to it as above provided; and if there is a credit balance, it shall be paid to such Non- Consenting Party.

If and when the Consenting Parties recover from a Non-Consenting Party’s relinquished interest the amounts provided for above, the relinquished interests of such Non-Consenting Party shall automatically revert to it as of 7:00 a.m. on the day following the day on which such recoupment occurs, and, from and after such reversion, such Non-Consenting Party shall own the same interest in such well, the material and equipment in or pertaining thereto, and the production therefrom *excluding_Carry_Wells as

such Non-Consenting Party would have been entitled to had it participated in the drilling*, Sidetracking, Reworking, Deepening, Recompleting or Plugging Back of said well. Thereafter, such Non-Consenting Party shall be charged with and shall pay its proportionate part of the further costs of the operation of said well in accordance with the terms of this agreement and Exhibit “C” attached hereto.

3. Stand-By Costs: When a well which has been drilled or Deepened has reached its authorized depth and all tests have been completed and the results thereof furnished to the parties, or when operations on the well have been otherwise terminated pursuant to Article VI.F., stand-by costs incurred pending response to a party’s notice proposing a Reworking, Sidetracking, Deepening, Recompleting, Plugging Back or Completing operation in such a well (including the period required under Article VI.B.6. to resolve competing proposals) shall be charged and borne as part of the drilling or Deepening operation just completed. Stand-by costs subsequent to all parties responding, or expiration of the response time permitted, whichever first occurs, and prior to agreement as to the participating interests of all Consenting Parties pursuant to the terms of the second grammatical paragraph of Article VI.B.2. (a), shall be charged to and borne as part of the proposed operation, but if the proposal is subsequently withdrawn because of insufficient participation, such stand-by costs shall be allocated between the Consenting Parties in the proportion each Consenting Party’s interest as shown on Exhibit “A” bears to the total interest as shown on Exhibit “A”, as appropriate in context, of all Consenting Parties.

In the event that notice for a Sidetracking operation is given while the drilling rig to be utilized is on location, any party may request and receive up to five (5) additional days after expiration of the forty-eight hour response period specified in Article VI.B.1. within which to respond by paying for all stand-by costs and other costs incurred during such extended response period; Operator may require such party to pay the estimated stand-by time in advance as a condition to extending the response period. If more than one party elects to take such additional time to respond to the notice, standby costs shall be allocated between the parties taking additional time to respond on a day-to-day basis in the proportion each electing party’s interest as shown on Exhibit “A” bears to the total interest as shown on Exhibit “A” , as appropriate in context, of all the electing parties.

4. Deepening: If less than all parties elect to participate in a drilling*, Sidetracking, or Deepening operation proposed pursuant to Article VI.B.1., the interest relinquished by the Non-Consenting Parties to the Consenting Parties under Article VI.B.2. shall relate only and be limited to the lesser of (i) the total depth actually drilled or (ii) the objective depth or Zone of which the parties were given notice under Article VI.B.1. (“Initial Objective”). Such well shall not be Deepened beyond the Initial Objective without first complying with this Article to afford the Non-Consenting Parties the opportunity to participate in the Deepening operation.

In the event any Consenting Party desires to drill or Deepen a Non-Consent Well to a depth below the Initial Objective, such party shall give notice thereof, complying with the requirements of Article VI.B.1., to all parties (including Non- Consenting Parties). Thereupon, Articles VI.B.1. and 2. shall apply and all parties receiving such notice shall have the right to participate or not participate in the Deepening of such well pursuant to said Articles VI.B.1. and 2. If a Deepening operation is approved pursuant to such provisions, and if any Non-Consenting Party elects to participate in the Deepening operation, such Non-Consenting party shall pay or make reimbursement (as the case may be) of the following costs and expenses.

(a) If the proposal to Deepen is made prior to the Completion of such well as a well capable of producing in paying quantities, such Non-Consenting Party shall pay (or reimburse Consenting Parties for, as the case may be) that share of costs and expenses incurred in connection with the drilling of said well from the surface to the Initial Objective which Non- Consenting Party would have paid had such Non-Consenting Party agreed to participate therein, plus the Non-Consenting Party’s share of the cost of Deepening and of participating in any further operations on the well in accordance with the other provisions of this Agreement; provided, however, all costs for testing and Completion or attempted Completion of the well incurred by Consenting Parties prior to the point of actual operations to Deepen beyond the Initial Objective shall be for the sole account of Consenting Parties.

(b) If the proposal is made for a Non-Consent Well that has been previously Completed as a well capable of producing in paying quantities, but is no longer capable of producing in paying quantities, such Non-Consenting Party shall pay (or reimburse Consenting Parties for, as the case may be) its proportionate share of all costs of drilling, Completing, and equipping said well from the surface to the Initial Objective, calculated in the manner provided in paragraph (a) above, less those costs recouped by the Consenting Parties from the sale of production from the well. The Non-Consenting Party shall also pay its proportionate share of all costs of re-entering said well. The Non-Consenting Parties’ proportionate part (based on the percentage of such well Non-Consenting Party would have owned had it previously participated in such Non-Consent Well) of the costs of salvable materials and equipment remaining in the hole and salvable surface equipment used in connection with such well shall be determined in accordance with Exhibit “C.” If the Consenting Parties have recouped the cost of drilling, Completing, and equipping the well at the time such Deepening operation is conducted, then a Non- Consenting Party may participate in the Deepening of the well with no payment for costs incurred prior to re-entering the well for Deepening.

The foregoing shall not imply a right of any Consenting Party to propose any Deepening for a Non-Consent Well prior to the drilling of such well to its Initial Objective without the consent of the other Consenting Parties as provided in Article VI.F.

5. Sidetracking: Any party having the right to participate in a proposed Sidetracking operation that does not own an interest in the affected wellbore at the time of the notice shall, upon electing to participate, tender to the wellbore owners its proportionate share (equal to its interest in the Sidetracking operation) of the value of that portion of the existing wellbore to be utilized as follows:

(a) If the proposal is for Sidetracking an existing dry hole, reimbursement shall be on the basis of the actual costs incurred in the initial drilling of the well down to the depth at which the Sidetracking operation is initiated.

(b) If the proposal is for Sidetracking a well which has previously produced, reimbursement shall be on the basis of such party’s proportionate share of drilling and equipping costs incurred in the initial drilling of the well down to the depth at which the Sidetracking operation is conducted, calculated in the manner described in Article VI.B.4(b) above. Such party’s proportionate share of the cost of the well’s salvable materials and equipment down to the depth at which the Sidetracking operation is initiated shall be determined in accordance with the provisions of Exhibit “C.”

6. Order of Preference of Operations. Except as otherwise specifically provided in this agreement, if any party desires to propose the conduct of an operation that conflicts with a proposal that has been made by a party under this Article VI, such party shall have fifteen (15) days from delivery of the initial proposal, in the case of a proposal to drill a well or to perform an operation on a well where no drilling rig is on location, or twenty-four (24) hours, ~~exclusive of Saturday, Sunday and legal holidays,~~ from delivery of the initial proposal, if a drilling rig is on location for the well on which such operation is to be conducted, to deliver to all parties entitled to participate in the proposed operation such party’s alternative proposal, such alternate proposal to contain the same information required to be included in the initial proposal. Each party receiving such proposals shall elect by delivery of notice to Operator within five (5) days after expiration of the proposal period, or within twenty-four (24) hours ~~(exclusive of Saturday, Sunday and legal holidays)~~ if a drilling rig is on location for the well that is the subject of the proposals, to participate in one of the competing proposals. Any party not electing within the time required shall be deemed not to have voted. The proposal receiving the vote of parties owning the largest aggregate percentage interest of the parties voting shall have priority over all other competing proposals; in the case of a tie vote, the initial proposal shall prevail. Operator shall deliver notice of such result to all parties entitled to participate in the operation within five (5) days after expiration of the election period (or within twenty-four (24) hours, exclusive of Saturday, Sunday and legal holidays, if a drilling rig is on location). Each party shall then have two (2) days (or twenty-four (24) hours if a rig is on location) from receipt of such notice to elect by delivery of notice to Operator to participate in such operation or to relinquish interest in the affected well pursuant to the provisions of Article VI.B.2.; failure by a party to deliver notice within such period shall be deemed an election not to participate in the prevailing proposal.

7. Conformity to Spacing Pattern. Notwithstanding the provisions of this Article VI.B.2., it is agreed that no wells shall be proposed to be drilled to or Completed in or produced from a Zone from which a well located elsewhere on the Contract Area is producing, unless such well conforms to the then-existing well spacing pattern or an approved exception thereto for such Zone.

8. Paying Wells. No party shall conduct any Reworking, Deepening, Plugging Back, Completion, Recompletion, or Sidetracking operation under this agreement with respect to any well then capable of producing in paying quantities except with the consent of all parties that have not relinquished interests in the well at the time of such operation.

1. Completion: Without the consent of all parties, no well shall be ~~drilled,~~ Deepened or Sidetracked, except any well ~~Drilled,~~ Deepened or Sidetracked pursuant to the provisions of Article VI.B.2. of this agreement. Consent to the drilling*,

2. Rework, Recomplete or Plug Back: No well shall be Reworked, Recompleted or Plugged Back except a well Reworked, Recompleted, or Plugged Back pursuant to the provisions of Article VI.B.2. of this agreement. Consent to the Reworking, Recompleting or Plugging Back of a well shall include all necessary expenditures in conducting such operations and Completing and equipping of said well, including necessary tankage and/or surface facilities.

Operator shall not undertake any single project reasonably estimated to require an expenditure in excess of Fifty Thousand Dollars ($50,000.00) except in connection with the drilling, Sidetracking, Reworking, Deepening, Completing, Recompleting or Plugging Back of a well that has been previously authorized by or pursuant to this agreement; provided, however, that, in case of explosion, fire, flood or other sudden emergency, whether of the same or different nature, Operator may take such steps and incur such expenses as in its opinion are required to deal with the emergency to safeguard life and property but Operator, as promptly as possible, shall report the emergency to the other parties. If Operator prepares an AFE for its own use, Operator shall furnish any Non-Operator so requesting an information copy thereof for any single project costing in excess of Fifty Thousand Dollars ($50,000.00). Any party who has not relinquished its interest in a well shall have the right to propose that * excluding Carry Wells

Operator perform repair work or undertake the installation of artificial lift equipment or ancillary production facilities such as salt water disposal wells or to conduct additional work with respect to a well drilled hereunder or other similar project (but not including the installation of gathering lines or other transportation or marketing facilities, the installation of which shall be governed by separate agreement between the parties) reasonably estimated to require an expenditure in excess of the amount first set forth above in this Article VI.D. (except in connection with an operation required to be proposed under Articles VI.B.1. or VI.C.1. Option No. 2, which shall be governed exclusively be those Articles). Operator shall deliver such proposal to all parties entitled to participate therein. If within thirty (30) days thereof Operator secures the written consent of any party or parties owning at least 50% of the interests of the parties entitled to participate in such operation, each party having the right to participate in such project shall be bound by the terms of such proposal and shall be obligated to pay its proportionate share of the costs of the proposed project as if it had consented to such project pursuant to the terms of the proposal.

1. Abandonment of Dry Holes: ~~Except for any well drilled or Deepened pursuant to Article VI.B.2.,~~ Any well which has been drilled or Deepened under the terms of this agreement and is proposed to be completed as a dry hole shall not be plugged and abandoned without the consent of all parties. Should Operator, after diligent effort, be unable to contact any party, or should any party fail to reply within forty-eight (48) hours ~~(exclusive of Saturday, Sunday and legal holidays)~~ after delivery of notice of the proposal to plug and abandon such well, such party shall be deemed to have consented to the proposed abandonment. All such wells shall be plugged and abandoned in accordance with applicable regulations and at the

cost, risk and expense of the parties who participated in the cost of drilling or Deepening such well. Any party who objects to plugging and abandoning such well by notice delivered to Operator within forty-eight (48) hours ~~(exclusive of Saturday, Sunday and legal holidays)~~ after delivery of notice of the proposed plugging shall take over the well as of the end of such forty-eight (48) hour notice period and conduct further operations in search of Oil and/or Gas subject to the provisions of Article VI.B.; failure of such party to provide proof reasonably satisfactory to Operator of its financial capability to conduct such operations or to take over the well within such period or thereafter to conduct operations on such well or plug and abandon such well shall entitle Operator to retain or take possession of the well and plug and abandon the well. The party taking over the well shall indemnify Operator (if Operator is an abandoning party) and the other abandoning parties against liability for any further operations conducted on such well except for the costs of plugging and abandoning the well and restoring the surface, for which the abandoning parties shall remain proportionately liable.

2. Abandonment of Wells That Have Produced: Except for any well in which a Non-Consent operation has been conducted hereunder for which the Consenting Parties have not been fully reimbursed as herein provided, any well which has been completed as a producer shall not be plugged and abandoned without the consent of all parties. If all parties consent to such abandonment, the well shall be plugged and abandoned in accordance with applicable regulations and at the cost, risk and expense of all the parties hereto. Failure of a party to reply within sixty (60) days of delivery of notice of proposed abandonment shall be deemed an election to consent to the proposal. If, within sixty (60) days after delivery of notice of the proposed abandonment of any well, all parties do not agree to the abandonment of such well, those wishing to continue its operation from the Zone then open to production shall be obligated to take over the well as of the expiration of the applicable notice period and shall indemnify Operator (if Operator is an abandoning party) and the other abandoning parties against liability for any further operations on the well conducted by such parties. Failure of such party or parties to provide proof reasonably satisfactory to Operator of their financial capability to conduct such operations or to take over the well within the required period or thereafter to conduct operations on such well, shall entitle operator to retain or take possession of such well and plug and abandon the well.

Parties taking over a well as provided herein shall tender to each of the other parties its proportionate share of the value of the well’s salvable material and equipment, determined in accordance with the provisions of Exhibit “C,” less the estimated cost of salvaging and the estimated cost of plugging and abandoning and restoring the surface; provided, however, that in the event the estimated plugging and abandoning and surface restoration costs and the estimated cost of salvaging are higher than the value of the well’s salvable material and equipment, each of the abandoning parties shall tender to the parties continuing operations their proportionate shares of the estimated excess cost. Each abandoning party shall assign to the non-abandoning parties, without warranty, express or implied, as to title or as to quantity, or fitness for use of the equipment and material, all of its interest in the wellbore of the well and related equipment, together with its interest in the Leasehold insofar and only insofar as such Leasehold covers the right to obtain production from that wellbore in the Zone then open to production. If the interest of the abandoning party is or includes an Oil and Gas Interest, such party shall execute and deliver to the non- abandoning party or parties an oil and gas lease, limited to the wellbore and the Zone then open to production, for a term of one (1) year and so long thereafter as Oil and/or Gas is produced from the Zone covered thereby, such lease to be on the form mutually acceptable to the parties and provide for a 16.67% royalty. ~~attached as Exhibit “B.”~~ The assignments or leases so limited shall encompass the Drilling Unit upon which the well is located. The payments by, and the assignments or leases to, the assignees shall be in a ratio based upon the relationship of their respective percentage of participation in the Contract Area to the aggregate of the percentages of participation in the Contract Area of all assignees. There shall be no readjustment of interests in the remaining portions of the Contract Area.

Thereafter, abandoning parties shall have no further responsibility, liability, or interest in the operation of or production from the well in the Zone then open other than the royalties retained in any lease made under the terms of this Article. Upon request, Operator shall continue to operate the assigned well for the account of the non-abandoning parties at the rates and charges contemplated by this agreement, plus any additional cost and charges which may arise as the result of the separate ownership of the assigned well. Upon proposed abandonment of the producing Zone assigned or leased, the assignor or lessor shall then have the option to repurchase its prior interest in the well (using the same valuation formula) and participate in further operations therein subject to the provisions hereof.

3. Abandonment of Non-Consent Operations: The provisions of Article VI.E.1. or VI.E.2. above shall be applicable as between Consenting Parties in the event of the proposed abandonment of any well excepted from said Articles; provided, however, no well shall be permanently plugged and abandoned unless and until all parties having the right to conduct further operations therein have been notified of the proposed abandonment and afforded the opportunity to elect to take over the well in accordance with the provisions of this Article VI.E.; and provided further, that Non-Consenting Parties who own an interest in a portion of the well shall pay their proportionate shares of abandonment and surface restoration cost for such well as provided in Article VI.B.2.(b).

Upon the commencement of an operation for the drilling, Reworking, Sidetracking, Plugging Back, Deepening, testing, Completion or plugging of a well, ~~including but not limited to the Initial Well,~~ such operation shall not be terminated without consent of a party or parties bearing 50% of the costs of such operation; provided, however, that in the event granite or other practically impenetrable substance or condition in the hole is encountered which renders further operations impractical, Operator may discontinue operations and give notice of such condition in the manner provided in Article VI.B.1, and the provisions of Article VI.B. or VI.E. shall thereafter apply to such operation, as appropriate.

Each party shall take in kind or separately dispose of its proportionate share of all Oil and Gas produced from the Contract Area, exclusive of production which may be used in development and producing operations and in preparing and treating Oil and Gas for marketing purposes and production unavoidably lost. Any extra expenditure incurred in the taking in kind or separate disposition by any party of its proportionate share of the production shall be borne by such party. Any party taking its share of production in kind shall be required to pay for only its proportionate share of such part of Operator’s surface facilities which it uses.

Each party shall execute such division orders and contracts as may be necessary for the sale of its interest in production from the Contract Area, and, except as provided in Article VII.B., shall be entitled to receive payment directly from the purchaser thereof for its share of all production.

If any party fails to make the arrangements necessary to take in kind or separately dispose of its proportionate share of the Oil and/ or Gas produced from the Contract Area, Operator shall have the right, subject to the revocation at will by the party owning it, but not the obligation, to purchase such Oil and/ or Gas or sell it to others at any time and from time to time, for the account of the non-taking party. Any such purchase or sale by Operator may be terminated by Operator upon at least ten (10) days written notice to the owner of said production and shall be subject always to the right of the owner of the production upon at least ten (10) days written notice to Operator to exercise at any time its right to take in kind, or separately dispose of, its share of all Oil and/ or Gas not previously delivered to a purchaser, provided, however, that the effective date of any such revocation may be deferred at Operator’s election for a period not to exceed ninety (90) days if Operator has committed such production to a purchase contract having a term extending beyond such ten (10) day period.

Any purchase or sale by Operator of any other party’s share of Oil shall be only for such reasonable periods of time as are consistent with the minimum needs of the industry under the particular circumstances, but in no event for a period in excess of one (1) year.

Any such sale by Operator shall be in a manner commercially reasonable under the circumstances but Operator shall have no duty to share any existing market or to obtain a price equal to that received under any existing market. The sale or delivery by Operator of a non-taking party’s share of Oil and/ or Gas under the terms of any existing contract of Operator shall not give the non-taking party any interest in or make the non-taking party a party to said contract. No purchase shall be made by Operator without first giving the non-taking party at least ten (10) days written notice of such intended purchase or sale and the price to be paid or the pricing basis to be used.

All parties shall give timely written notice to Operator of their Gas marketing arrangements for the following month, excluding price, and shall notify Operator immediately in the event of a change in such arrangements. Operator shall maintain records of all marketing arrangements, and of volumes actually sold or transported, which records shall be made available to Non-Operators upon reasonable request.

In the event one or more parties’ separate disposition of its share of the Gas causes split-stream deliveries to separate pipelines and/or deliveries which on a day-to-day basis for any reason are not exactly equal to a party’s respective proportion- ate share of total Gas sales to be allocated to it, the balancing or accounting between the parties shall be in accordance with any Gas balancing agreement between the parties hereto, whether such an agreement is attached as Exhibit “E” or is a separate agreement. Operator shall give notice to all parties of the first sales of Gas from any well under this agreement.

Each party shall take in kind or separately dispose of its proportionate share of all Oil and Gas produced from the Contract Area, exclusive of production which may be used in development and producing operations and in preparing and treating Oil and Gas for marketing purposes and production unavoidably lost. Any extra expenditures incurred in the taking in kind or separate disposition by any party of its proportionate share of the production shall ~~be borne by such party. Any party taking its share of production in kind shall be required to pay for only its proportionate share of such part of Operator’s surface facilities which it uses.~~

If any party fails to make the arrangements necessary to take in kind or separately dispose of its proportionate share of the Oil and/or Gas produced from the Contract Area, Operator shall have the right, subject to the revocation at will by the party owning it, but not the obligation, to purchase such Oil and/or Gas or sell it to others at any time and from time to time, for the account of the non-taking party. Any such purchase or sale by Operator may be terminated by Operator upon at least ten (10) days written notice to the owner of said production and shall be subject always to the right of the owner of the production upon at least ten (10) days written notice to Operator to exercise its right to take in kind, or separately dispose of, its share of all Oil and/or Gas not previously delivered to a purchaser; provided, however, that the effective date of any such revocation may be deferred at Operator’s election for a period not to exceed ninety (90) days if Operator has committed such production to a purchase contract having a term extending beyond such ten (10) -day period. Any purchase or sale by Operator of any other party’s share of Oil and/or Gas shall be only for such reasonable periods of time as are consistent with the minimum needs of the industry under the particular circumstances, but in no event for a period in excess of one (1) year.

Any such sale by Operator shall be in a manner commercially reasonable under the circumstances, but Operator shall have no duty to share any existing market or transportation arrangement or to obtain a price or transportation fee equal to that received under any existing market or transportation arrangement. The sale or delivery by Operator of a non-taking party’s share of production under the terms of any existing contract of Operator shall not give the non-taking party any interest in or make the non-taking party a party to said contract. No purchase of Oil and Gas and no sale of Gas shall be made by Operator without first giving the non-taking party ten days written notice of such intended purchase or sale and the price to be paid or the pricing basis to be used. Operator shall give notice to all parties of the first sale of Gas from any well under this Agreement.

The liability of the parties shall be several, not joint or collective. Each party shall be responsible only for its obligations, and shall be liable only for its proportionate share of the costs of developing the operating the Contract Area commensurate with a party’s interests reflected in Exhibit “A”. Accordingly, the liens granted among the parties in Article VII.B. are given to secure only the debts of each severally, and no party shall have any liability to third parties hereunder to satisfy the default of any other party in the payment of any expense or obligation hereunder. It is not the intention of the parties to create, nor shall this agreement be construed as creating, a mining or other partnership, joint venture, agency relationship or association, or to render the parties liable as partners, co- venturers, or principals. In their relations with each other under this agreement, the parties shall not be considered fiduciaries or to have established a confidential relationship but rather shall be free to act on an arm’s-length basis in accordance with their own respective self-interest, subject, however, to the obligation of the parties to act in good faith in their dealings with each other with respect to activities hereunder.

Each party grants to the other parties hereto a lien upon any interest it now owns or hereafter acquires in a Carry and/or Head’s Up Well, and a security interest and/or purchase money security interest in any interest it now owns or hereafter acquires in the personal property and fixtures on or used or obtained for use in connection therewith, to secure performance of all of its obligations under this agreement and/or the BJU Carry and Earning Agreement, including but not limited to payment of expense, interest and fees, the proper disbursement of all monies paid hereunder, the assignment or relinquishment of interest in Carry and/or Head’s Up Wells required hereunder, and the proper performance of operations hereunder. Such lien and security interest granted by each party hereto shall include such party’s working interests in the Carry and/or Head’s Up Wells now owned or hereafter acquired, the Oil and Gas when extracted therefrom and equipment situated thereon or used or obtained for use in connection therewith (including, without limitation, all wells, tools, and tubular goods), and accounts (including, without limitation, accounts arising from gas imbalances or from the sale of Oil and/or Gas at the wellhead), contract rights, inventory and general intangibles relating thereto or arising therefrom, and all proceeds and products of the foregoing.

To perfect the lien and security agreement provided herein, each party hereto shall execute and acknowledge the recording supplement and/or any financing statement prepared and submitted by any party hereto in conjunction herewith or at any time following execution hereof, and Operator is authorized to file this agreement or the recording supplement executed herewith as a lien or mortgage in the applicable real estate records and as a financing statement with the proper officer under the Uniform Commercial Code in the state in which the Contract Area is situated and such other states as Operator shall deem appropriate to perfect the security interest granted hereunder. Any party may file this agreement, the recording supplement executed herewith, or such other documents as it deems necessary as a lien or mortgage in the applicable real estate records and/or a financing statement with the proper officer under the Uniform Commercial Code.

Each party represents and warrants to the other parties hereto that the lien and security interest granted by such party to the other parties shall be a first and prior lien, and each party hereby agrees to maintain the priority of said lien and security interest against all persons acquiring an interest in the Carry and/or Head’s Up Wells covered by this agreement and/or the BJU Carry & Earning Agreement by, through or under such party. All parties acquiring an interest in the Carry and/or Head’s Up Wells Covered_by_this_agreement, whether by assignment, merger, mortgage, operation of law, or otherwise, shall be deemed to have_taken_subject to the lien and security interest granted by this Article VII.B. as to all obligations attributable to such interest hereunder whether or not such obligations arise before or after such interest is acquired.

To the extent that parties have a security interest under the Uniform Commercial Code of the state in which the Contract Area is situated, they shall be entitled to exercise the rights and remedies of a secured party under the Code. The bringing of a suit and the obtaining of judgment by a party for the secured indebtedness shall not be deemed an election of remedies or otherwise affect the lien rights or security interest as security for the payment thereof. In addition, upon default by any party in the payment of its share of expenses, interests or fees, or upon the improper use of funds by the Operator, or upon default by any party in the payment of amounts due pursuant to, or performance under, the provisions of this agreement and/or the BJU Carry and Earning Agreement, the other parties shall have the right, without prejudice to other rights or remedies, to collect from the purchaser the proceeds from the sale of such defaulting party’s share of Oil and Gas until the amount owed by such party, plus interest as provided in “Exhibit C,” has been received, and shall have the right to offset the amount owed against the proceeds from the sale of such defaulting party’s share of Oil and Gas. All purchasers of production may rely on a notification of default from the non-defaulting party or parties stating the amount due as a result of the default, and all parties waive any recourse available against purchasers for releasing production proceeds as provided in this paragraph.

If any party fails to pay its share of cost within one hundred twenty (120) days after rendition of a statement therefor by Operator, the non-defaulting parties, including Operator, shall upon request by Operator, pay the unpaid amount in the proportion that the interest of each such party bears to the interest of all such parties. The amount paid by each party so paying its share of the unpaid amount shall be secured by the liens and security rights described in Article VII.B., and each paying party may independently pursue any remedy available hereunder or otherwise.

If any party does not perform all of its obligations under this agreement and/or the BJU Carry and Earning Agreement, and the failure to perform subjects such party to foreclosure or execution proceedings pursuant to the provisions of this agreement and/or the BJU Carry and Earning Agreement, to the extent allowed by governing law, the defaulting party waives any available right of redemption from and after the date of judgment, any required valuation or appraisement of the mortgaged or secured property prior to sale, any available right to stay execution or to require a marshaling of assets and any required bond in the event a receiver is appointed. In addition, to the extent permitted by applicable law, each party hereby grants to the other parties a power of sale as to any property that is subject to the lien and security rights granted hereunder, such power to be exercised in the manner provided by applicable law or otherwise in a commercially reasonable manner and upon reasonable notice.

Each party agrees that the other parties shall be entitled to utilize the provisions of Oil and Gas lien law or other lien law of any state in which the Contract Area is situated to enforce the obligations of each party hereunder. Without limiting the generality of the foregoing, to the extent permitted by applicable law, Non-Operators agree that Operator may invoke or utilize the mechanics’ or materialmen’s lien law of the state in which the Contract Area is situated in order to secure the payment to Operator of any sum due hereunder for services performed or materials supplied by Operator.

Operator, at its election, shall have the right from time to time to demand and receive from one or more of the other parties payment in advance of their respective shares of the estimated amount of the expense to be incurred in operations hereunder during the next succeeding month, which right may be exercised only by submission to each such party of an itemized statement of such estimated expense, together with an invoice for its share thereof. Each such statement and invoice

for the payment in advance of estimated expense shall be submitted on or before the 20th day of the next preceding month. Each party shall pay to Operator its proportionate share of such estimate within fifteen (15) days after such estimate and invoice is received. If any party fails to pay its share of said estimate within said time, the amount due shall bear interest as provided in Exhibit “C” until paid. Proper adjustment shall be made monthly between advances and actual expense to the end that each party shall bear and pay its proportionate share of actual expenses incurred, and no more.

If any party fails to discharge any financial obligation under the BJU Carry and Earning Agreement or this agreement, including without limitation the failure to make any advance under the preceding Article VII.C. or any other provision of this agreement, within the period required for such payment thereunder or hereunder, then in addition to the remedies provided in Article VII.B. or elsewhere in this agreement or in the BJU Carry and Earning Agreement, the remedies specified below shall be applicable. For purposes of this Article VII.D., all notices and elections shall be delivered only by Operator, except that Operator shall deliver any such notice and election requested by a non-defaulting Non-Operator, and when Operator is the party in default, the applicable notices and elections can be delivered by any Non-Operator. Election of any one or more of the following remedies shall not preclude the subsequent use of any other remedy specified below or otherwise available to a non-defaulting party.

1. Suspension of Rights: Any party may deliver to the party in default a Notice of Default, which shall specify the default, specify the action to be taken to cure the default, and specify that failure to take such action will result in the exercise of one or more of the remedies provided in this Article. If the default is not cured within thirty (30) days of the delivery of such Notice of Default, all of the rights of the defaulting party granted by this agreement may upon notice be suspended until the default is cured, without prejudice to the right of the non-defaulting party or parties to continue to enforce the obligations of the defaulting party previously accrued or thereafter accruing under this agreement. If Operator is the party in default, the Non-Operators shall have in addition the right, by vote of Non-Operators owning a majority in interest in the Contract Area after excluding the voting interest of Operator, to appoint a new Operator effective immediately. The rights of a defaulting party that may be suspended hereunder at the election of the non-defaulting parties shall include, without limitation, the right to receive information as to any operation conducted hereunder during the period of such default, the right to elect to participate in an operation proposed under Article VI.B. of this agreement, the right to participate in an operation being conducted under this agreement even if the party has previously elected to participate in such operation, and the right to receive proceeds of production from any well subject to this agreement.

2. Suit for Damages: Non-defaulting parties or Operator for the benefit of non-defaulting parties may sue (at joint account expense) to collect the amounts in default, plus interest accruing on the amounts recovered from the date of default \until the date of collection at the rate specified in Exhibit “C” attached hereto. Nothing herein shall prevent any party from suing any defaulting party to collect consequential damages accruing to such party as a result of the default.

3. Deemed Non-Consent: The non-defaulting party may deliver a written Notice of Non-Consent Election to the defaulting party at any time after the expiration of the thirty-day cure period following delivery of the Notice of Default, in which event if the billing is for the drilling a new well or the Plugging Back, Sidetracking, Reworking or Deepening of a well which is to be or has been plugged as a dry hole, or for the Completion or Recompletion of any well, the defaulting party will be conclusively deemed to have elected not to participate in the operation and to be a Non-Consenting Party with respect thereto under Article VI.B. or VI.C., as the case may be, to the extent of the costs unpaid by such party, notwithstanding any election to participate theretofore made. If election is made to proceed under this provision, then the non-defaulting parties may not elect to sue for the unpaid amount pursuant to Article VII.D.2.

Until the delivery of such Notice of Non-Consent Election to the defaulting party, such party shall have the right to cure its default by paying its unpaid share of costs plus interest at the rate set forth in Exhibit “C,” provided, however, such payment shall not prejudice the rights of the non-defaulting parties to pursue remedies for damages incurred by the non- defaulting parties as a result of the default. Any interest relinquished pursuant to this Article VII.D.3. shall be offered to the non-defaulting parties in proportion to their interests, and the non-defaulting parties electing to participate in the ownership of such interest shall be required to contribute their shares of the defaulted amount upon their election to participate therein.

4. Advance Payment: If a default is not cured within thirty (30) days of the delivery of a Notice of Default, Operator, or Non-Operators if Operator is the defaulting party, may thereafter require advance payment from the defaulting party of such defaulting party’s anticipated share of any item of expense for which Operator, or Non-Operators, as the case may be, would be entitled to reimbursement under any provision of this agreement, whether or not such expense was the subject of the previous default. Such right includes, but is not limited to, the right to require advance payment for the estimated costs of drilling a well or Completion of a well as to which an election to participate in drilling or Completion has been made. If the defaulting party fails to pay the required advance payment, the non-defaulting parties may pursue any of the remedies provided in the Article VII.D. or any other default remedy provided elsewhere in this agreement. Any excess of funds advanced remaining when the operation is completed and all costs have been paid shall be promptly returned to the advancing party.

5. Costs and Attorneys’ Fees: In the event any party is required to bring legal proceedings to enforce any financial obligation of a party hereunder, the prevailing party in such action shall be entitled to recover all court costs, costs of collection, and a reasonable attorney’s fee, which the lien provided for herein shall also secure.

Rentals, shut-in well payments and minimum royalties which may be required under the terms of any lease shall be paid by the Operator for the joint account of the parties. Any party may request, and shall be entitled to receive, proper evidence of all such payments. In the event of failure to make proper payment of any rental, shut-in well payment or minimum royalty through mistake or oversight where such payment is required to continue the lease in force, any loss which results from such non-payment shall be borne in accordance with the provisions of Article IV.B.2.

Operator shall notify Non-Operators of the anticipated completion of a shut-in well, or the shutting in or return to production of a producing well, at least five (5) days (excluding Saturday, Sunday, and legal holidays) prior to taking such action, or at the earliest opportunity permitted by circumstances, but assumes no liability for failure to do so. In the event of failure by Operator to so notify Non-Operators, the loss of any lease contributed hereto by Non-Operators for failure to make timely payments of any shut-in well payment shall be borne jointly by the parties hereto under the provisions of Article IV.B.3.

Beginning with the first calendar year after the effective date hereof, Operator shall render for ad valorem taxation all property subject to this agreement which by law should be rendered for such taxes, and it shall pay all such taxes assessed thereon before they become delinquent. Prior to the rendition date, each Non-Operator shall furnish Operator information as to burdens (to include, but not be limited to, royalties, overriding royalties and production payments) on Leases and Oil and Gas Interests contributed by such Non-Operator. If the assessed valuation of any Lease is reduced by reason of its being subject to outstanding excess royalties, overriding royalties or production payments, the reduction in ad valorem taxes resulting therefrom shall inure to the benefit of the owner or owners of such Lease, and Operator shall adjust the charge to such owner or owners so as to reflect the benefit of such reduction. If the ad valorem taxes are based in whole or in part upon separate valuations of each party’s working interest, then notwithstanding anything to the contrary herein, charges to the joint account shall be made and paid by the parties hereto in accordance with the tax value generated by each party’s working interest. Operator shall bill the other parties for their proportionate shares of all tax payments in the manner provided in Exhibit “C.”

If Operator considers any tax assessment improper, Operator may, at its discretion, protest within the time and manner prescribed by law, and prosecute the protest to a final determination, unless all parties agree to abandon the protest prior to final determination. During the pendency of administrative or judicial proceedings, Operator may elect to pay, under protest, all such taxes and any interest and penalty. When any such protested assessment shall have been finally determined, Operator shall pay the tax for the joint account, together with any interest and penalty accrued, and the total cost shall then be assessed against the parties, and be paid by them, as provided in Exhibit “C.”

Each party shall pay or cause to be paid all production, severance, excise, gathering and other taxes imposed upon or with respect to the production or handling of such party’s share of Oil and Gas produced under the terms of this agreement.

~~The Leases covered by this agreement, insofar as they embrace acreage in the Contract Area, shall not be surrendered in whole or in part unless all parties consent thereto.~~

However, should any party desire to surrender its interest in any Lease or in any portion thereof, such party shall give written notice of the proposed surrender to all parties, and the parties to whom such notice is delivered shall have thirty (30) days after delivery of the notice within which to notify the party proposing the surrender whether they elect to consent thereto. Failure of a party to whom such notice is delivered to reply within said 30-day period shall constitute a consent to the surrender of the Leases described in the notice. If all parties do not agree or consent thereto, the party desiring to surrender shall assign, without express or implied warranty of title, all of its interest in such Lease, or portion thereof, and any well, material and equipment which may be located thereon and any rights in production thereafter secured, to the parties not consenting to such surrender. If the interest of the assigning party is or includes an Oil and Gas Interest, the assigning party shall execute and deliver to the party or parties not consenting to such surrender an oil and gas lease covering such Oil and Gas Interest for a term of one (1) year and so long thereafter as Oil and/or Gas is produced from the land covered thereby., such lease to be on the form attached hereto as Exhibit “B.”

Upon such assignment or lease, the assigning party shall be relieved from all obligations thereafter accruing, but not theretofore accrued, with respect to the interest assigned or leased and the operation of any well attributable thereto, and the assigning party shall have no further interest in the assigned or leased premises and its equipment and production. other than the royalties retained in any lease made under the terms of this Article. The party assignee or lessee shall pay to the party assignor or lessor the reasonable salvage value of the latter’s interest in any well’s salvable materials and equipment attributable to the assigned or leased acreage. The value of all salvable materials and equipment shall be determined in accordance with the provisions of Exhibit “C,” less the estimated cost of salvaging and the estimated cost of plugging and abandoning and restoring the surface. If such value is less than such costs, then the party assignor or lessor shall pay to the party assignee or lessee the amount of such deficit. If the assignment or lease is in favor of more than one party, the interest shall be shared by such parties in the proportions that the interest of each bears to the total interest of all such parties. If the interest of the parties to whom the assignment is to be made varies according to depth, then the interest assigned shall similarly reflect such variances.

Any assignment, lease or surrender made under this provision shall not reduce or change the assignor’s, lessor’s or surrendering party’s interest as it was immediately before the assignment, lease or surrender in the balance of the Contract Area; and the acreage assigned, leased or surrendered, and subsequent operations thereon, shall not thereafter be subject to the terms and provisions of this agreement but shall be deemed subject to an Operating Agreement in the form of this agreement.

If any party secures a renewal or replacement of an Oil and Gas Lease or Interest subject to this agreement, then all other parties shall be notified promptly upon such acquisition or, in the case of a replacement Lease taken before expiration of an existing Lease, promptly upon expiration of the existing Lease. The parties notified shall have the right for a period of thirty (30) days following delivery of such notice in which to elect to participate in the ownership of the renewal or replacement Lease, insofar as such Lease affects lands within the Contract Area, by paying to the party who acquired it their proportionate shares of the acquisition cost allocated to that part of such Lease within the Contract Area, which shall be in proportion to the interest held at that time by the parties in the Contract Area. Each party who participates in the purchase of a renewal or replacement Lease shall be given an assignment of its proportionate interest therein by the acquiring party. If some, but less than all, of the parties elect to participate in the purchase of a renewal or replacement Lease, it shall be owned by the parties who elect to participate therein, in a ratio based upon the relationship of their respective percentage of participation in leases described in Exhibit “A” to the aggregate of the percentages of participation in the Contract Area of all parties participating in the purchase of such renewal or replacement Lease. (Not applicable to the Encana Contract Area.) The acquisition of a renewal or replacement Lease by any or all of the parties hereto shall not cause a readjustment of the interests of the parties stated in Exhibit “A” but any renewal or replacement Lease in which less than all parties elect to participate shall not be subject to this agreement but shall be deemed subject to a separate Operating Agreement in the form of this agreement.

If the interests of the parties in the Contract Area vary according to depth, then their right to participate proportionately in renewal or replacement Leases and their right to receive an assignment of interest shall also reflect such depth variances.

The provisions of this Article shall apply to renewal or replacement Leases whether they are for the entire interest covered by the expiring Lease or cover only a portion of its area or an interest therein. Any renewal or replacement Lease taken before the or nominated for sale expiration of its predecessor Lease, or taken or contracted for or becoming effective / within six (6) months after the expiration of the existing Lease, shall be subject to this provision so long as this agreement is in effect at the time of such acquisition or at the time or nominated for sale the renewal or replacement Lease becomes effective; but any Lease taken or contracted for / more than six (6) months after the expiration of an existing Lease shall not be deemed a renewal or replacement Lease and shall not be subject to the provisions of this agreement.

~~The provisions in this Article shall also be applicable to extensions of Oil and Gas Leases.~~

While this agreement is in force, if any party contracts for a contribution of cash towards the drilling of a well or any other operation on the Contract Area, such contribution shall be paid to the party who conducted the drilling or other operation and shall be applied by it against the cost of such drilling or other operation. If the contribution be in the form of acreage, the party to whom the contribution is made shall promptly tender an assignment of the acreage, without warranty of title, to the Drilling Parties in the proportions said Drilling Parties shared the cost of drilling the well. Such acreage shall become a separate Contract Area and, to the extent possible, be governed by provisions identical to this agreement. Each party shall promptly notify all other parties of any acreage or cash contributions it may obtain in support of any well or any other operation on the Contract Area. The above provisions shall also be applicable to optional rights to earn acreage outside the Contract Area which are in support of well drilled inside Contract Area.

For the purpose of maintaining uniformity of ownership in the Contract Area in the Oil and Gas Leases, Oil and Gas Interests, wells, equipment and production covered by this agreement no party shall sell, encumber, transfer or make other disposition of its interest in the Oil and Gas Leases and Oil and Gas Interests embraced within the Contract Area or in wells, equipment and production unless such disposition covers either:

~~1. the entire interest of the party in all Oil and Gas Leases, Oil and Gas Interests, wells, equipment and production; or~~

~~2. an equal undivided percent of the party’s present interest in all Oil and Gas Leases, Oil and Gas Interests, wells, equipment and production in the Contract Area.~~

Every sale, encumbrance, transfer or other disposition made by any party shall be made expressly subject to this agreement and the BJU Carry and Earning Agreement and shall be made without prejudice to the right of the other parties, and any transferee of an ownership interest in any Carry and/or Head’s Up Well shall be deemed a party to this agreement as to the interest conveyed from and after the effective date of the transfer of ownership; provided, however, that the other parties shall not be required to recognize any such sale, encumbrance, transfer or other disposition for any purpose hereunder until thirty (30) days after they have received a copy of the instrument of transfer or other satisfactory evidence thereof in writing from the transferor or transferee. No assignment or other disposition of an interest in a Carry and/or Head’s Up Well by a party shall relieve such party of obligations previously incurred by such party hereunder with respect to the interest transferred, including without limitation the obligation of a party to pay all costs attributable to an operation conducted hereunder in which such party has agreed to participate prior to making such assignment, and the lien and security interest granted by Article VII.B. shall continue to burden the interest transferred to secure payment of any such obligations.

Every sale, encumbrance, transfer or other disposition by any party of any Carry and/or Head’s Up Well covered by this agreement shall be made expressly subject to this agreement and to the provisions of Exhibit G hereto, and shall be made without prejudice to the rights of the other parties, and any transferee of any Carry and/or Head’s Up Well shall be deemed a party to this agreement as to the interest conveyed from and after the effective date of the transfer of ownership; provided, however that the other parties shall not be required to recognize any such sale, encumbrance, transfer or other disposition for any purpose hereunder, and no such transfer shall be deemed effective for any purpose, until thirty (30) days after the other parties have received a copy of the instrument of transfer or other satisfactory evidence thereof from the transferor or transferee and an executed copy of an undertaking by the transferee to abide and be bound by the terms of this agreement and Exhibit G hereto.

If, at any time the interest of any party is divided among and owned by two ~~four~~ or more co-owners, Operator, at its discretion, may require such co-owners to appoint a single trustee or agent with full authority to receive notices, approve expenditures, receive billings for and approve and pay such party’s share of the joint expenses, and to deal generally with, and with power to bind, the co-owners of such party’s interest within the scope of the operations embraced in this agreement and/or the BJU Carry and Earning Agreement; however, all such co- owners shall have the right to enter into and execute all contracts or agreements for the disposition of their respective shares of the Oil and Gas produced from the Carry and/or Head’s Up Wells and they shall have the right to receive, separately, payment of the sale proceeds thereof.

If permitted by the laws of the state or states in which the property covered hereby is located, each party hereto owning an undivided interest in the Contract Area waives any and all rights it may have to partition and have set aside to it in severalty its undivided interest therein.

This Agreement is not intended to create, and shall not be construed to create, an association for profit, a trust, a joint venture, a mining partnership or other relationship of partnership, or entity of any kind between the Parties. Notwithstanding anything to the contrary contained herein, the Parties understand and agree that the arrangement and undertakings evidenced by this Agreement, taken together, result in a partnership for purposes of federal income taxation and for purposes of certain state income tax laws which incorporate or follow federal income tax principles as to tax partnerships. For these purposes, the Parties agree to be governed by the tax partnership provisions attached as Exhibit “G” which are incorporated herein and made a part of this Agreement by this reference. For every purpose other than the above-described income tax purposes, however, the Parties understand and agree that the liabilities of the Parties shall be several, not joint or collective, and that each Party shall be solely responsible for its own obligations. In the event of any conflict or inconsistency between the terms and conditions of Exhibit “G” and the terms and conditions of this Agreement or any attachment or exhibit hereto (other than Exhibit “G”) the terms and conditions of Exhibit “G” shall govern and control.

Operator may settle any single uninsured third party damage claim or suit arising from operations hereunder if the expenditure does not exceed Fifty Thousand Dollars ($50,000.00) and if the payment is in complete settlement of such claim or suit. If the amount required for settlement exceeds the above amount, the parties hereto shall assume and take over the further handling of the claim or suit, unless such authority is delegated to Operator. All costs and expenses of handling settling, or otherwise discharging such claim or suit shall be a the joint expense of the parties participating in the operation from which the claim or suit arises. If a claim is made against any party or if any party is sued on account of any matter arising from operations hereunder over which such individual has no control because of the rights given Operator by this agreement, such party shall immediately notify all other parties, and the claim or suit shall be treated as any other claim or suit involving operations hereunder.

29.2 If a Party is rendered unable, wholly or in part, by a force majeure event to carry out its obligations under this Agreement, other than the obligations to make money payments and to deliver Wellbore Assignments of interests in the Carry and/or Head’s Up Wells, the affected Party shall give the other Party prompt written notice describing the force majeure event in reasonable detail. Thereupon, the obligations of the Party giving notice, so far as it is affected by the force majeure event, shall be suspended and any time periods provided for in this Agreement shall be extended for a period equal to the period of the continuance of the force majeure event. The affected Party shall use all reasonable diligence to remove the force majeure event as quickly as practicable. The requirement that any force majeure event be remedied with all reasonable dispatch shall not require the settlement of strikes, lockouts or other labor difficulty by the Party affected, contrary to its wishes, and settlement or resolution of such matters shall be within the discretion of the affected Party. The term “force majeure event” as used herein, shall mean an act of God, act of terrorism, strike, lockout, or other industrial disturbance, act of the public enemy, war, blockade, public riot, lightning, fire, storm, flood, explosion, the actions of Governmental Authority, restraint or inaction, the interruption or suspension of the receipt or delivery of natural gas (or any of its constituants) or water due to the inability or failure of any Third Party who is not a party to this Agreement (other than an Affiliate of either Party hereto), to receive or deliver such gas or water, unavailability of equipment, inability to gain access, ingress or egress to conduct operations (including without limitation delays in or inability to obtain permits, approvals or clearances from governmental bodies).

All notices authorized or required between the parties by any of the provisions of this agreement, unless otherwise specifically provided, shall be in writing and delivered in person or by United States mail, courier service, email or other electronic means, telecopier or any other form of facsimile, postage or charges prepaid, and addressed to such parties at the addresses listed on Exhibit “A.” All telephone, email or oral notices permitted by this agreement shall be confirmed immediately thereafter by written notice. The originating notice given under any provision hereof shall be deemed delivered only when received by the party to whom such notice is directed, and the time for such party to deliver any notice in response thereto shall run from the date the originating notice is received. “Receipt” for purposes of this agreement with respect to written notice delivered hereunder shall be actual delivery of the notice to the address of the party to be notified specified in accordance with this agreement, or to the telecopy, facsimile or telex machine of such party. The second or any responsive notice shall be deemed delivered when deposited in the United States mail or at the office of the courier or telegraph service, or upon transmittal by telex, telecopy or facsimile, or when personally delivered to the party to be notified, provided, that when response is required within 24 or 48 hours, such response shall be given orally or by telephone, telex, telecopy or other facsimile within such period. Each party shall have the right to change its address at any time, and from time to time, by giving written notice thereof to all other parties. If a party is not available to receive notice orally or by telephone when a party attempts to deliver a notice required to be delivered within 24 or 48 hours, the notice may be delivered in writing by any other method specified herein and shall be deemed delivered in the same manner provided above for any responsive notice.

This agreement shall remain in full force and effect until one year after there are no longer any producing Carry and/or Head’s Up Wells in which Nucor or its successors or assigns holds an interest, or until all Carry and/or Head’s Up Wells have been plugged and abandoned, whichever is later.

The termination of this agreement shall not relieve any party hereto from any expense, liability or other obligation or any remedy therefor which has accrued or attached prior to the date of such termination.

Upon termination of this agreement and the satisfaction of all obligations hereunder, in the event a memorandum of this Operating Agreement has been filed of record, Operator is authorized to file of record in all necessary recording offices a notice of termination, and each party hereto agrees to execute such a notice of termination as to Operator’s interest, upon request of Operator, if Operator has satisfied all its financial obligations.

This agreement shall be subject to the applicable laws of the state in which the Contract Area is located, to the valid rules, regulations, and orders of any duly constituted regulatory body of said state; and to all other applicable federal, state, and local laws, ordinances, rules, regulations and orders.

This agreement and all matters pertaining hereto, including but not limited to matters of performance, non- performance, breach, remedies, procedures, rights, duties, and interpretation or construction, shall be governed and determined by the law of the state in which the Contract Area is located. ~~If the Contract Area is in two or more states, the law of the state of~~ ~~shall govern.~~

Nothing herein contained shall grant, or be construed to grant, Operator the right or authority to waive or release any rights, privileges, or obligations which Non-Operators may have under federal or state laws or under rules, regulations or orders promulgated under such laws in reference to oil, gas and mineral operations, including the location, operation, or production of wells, on tracts offsetting or adjacent to the Contract Area.

With respect to the operations hereunder, Non-Operators agree to release Operator from any and all losses, damages, injuries, claims and causes of action arising out of, incident to or resulting directly or indirectly from Operator’s interpretation or application of rules, rulings, regulations or orders of the Department of Energy or Federal Energy Regulatory Commission or predecessor or successor agencies to the extent such interpretation or application was made in good faith and does not constitute gross negligence. Each Non-Operator further agrees to reimburse Operator for such Non-Operator’s share of production or any refund, fine, levy or other governmental sanction that Operator may be required to pay as a result of such an incorrect interpretation or application, together with interest and penalties thereon owing by Operator as a result of such incorrect interpretation or application.

This agreement shall be binding upon each Non-Operator when this agreement or a counterpart thereof has been executed by such Non-Operator and Operator notwithstanding that this agreement is not then or thereafter executed by all of the parties to which it is tendered or which are listed on Exhibit “A” as owning an interest in the Contract Area or which own, in fact, an interest in the Contract Area.

This agreement shall be binding upon and shall inure to the benefit of the parties hereto and their respective heirs, devisees, legal representatives, successors and assigns, and the terms hereof shall be deemed to run with the Interests in the Carry and/or Head’s Up Wells included within the Contract Area.

This instrument may be executed in any number of counterparts, each of which shall be considered an original for all purposes.

For the purposes of assuming or rejecting this agreement as an executory contract pursuant to federal bankruptcy laws, this agreement shall not be severable, but rather must be assumed or rejected in its entirety, and the failure of any party to this agreement to comply with all of its financial obligations provided herein shall be a material default.

IN WITNESS WHEREOF, this agreement shall be effective as of the 1st day of November, 2012.

This instrument was acknowledged before me on , 2012 by Ricardo D. Gallegos, VP, Bus. Dev. – Negotiations & Lead Rockies & Intl. Land of Encana Oil & Gas (USA) Inc.

This instrument was acknowledged before me on , 2012 by Joe Stratman, President of Nucor Energy Holdings Inc.

Attached to and made a part of that certain Operating Agreement executed October 31, 2012 but effective as of November 1, 2012 by and between Encana Oil &Gas (USA) Inc. and Nucor Energy Holdings Inc.

The Lands subject to this Agreement are set out on the attached plat (Exhibit A-1), pursuant to the BJU Carry and Earning Agreement dated effective November 1, 2012 between the Parties.

Wellbore interest only in Carry Wells and/or Head’s Up Wells designated and drilled pursuant to the BJU Carry and Earning Agreement executed October 31, 2012 but effective November 1, 2012 between the Parties. All interests are limited in depth to the depth drilled in the applicable well, but not below the base of the Formation as defined in the BJU Carry and Earning Agreement, subject to Section 2.1 I of such agreement.

A. Drilling costs, Completion costs, and Equipping costs for Carry Wells shall be borne as set forth in the BJU Carry and Earning Agreement executed October 31, 2012 but dated effective November 1, 2012 between the Parties as follows:

Working Interest ownership in Carry Wells after Drilling, Completing and Equipping:

[***] This confidential information has been omitted and filed separately with the Securities and Exchange Commission pursuant to a request for confidential treatment.

B. Drilling Costs, Completion Costs and Equipping Costs for Head’s Up Wells in which all Parties elect to participate shall be borne as set forth in the BJU Carry and Earning Agreement executed October 31, 2012 but dated effective November 1, 2012 between the Parties as follows:

Working Interest Ownership in Head’s-Up Well in which all Parties elect to participate after Drilling, Completing and Equipping:

C. Drilling Costs, Completion Costs and Equipping Costs for Head’s Up Wells in which Nucor elects not to participate shall be borne as set forth in the BJU Carry and Earning Agreement executed October 31, 2012 but dated effective November 1, 2012 between the Parties as follows:

Working Interest Ownership in Head’s-Up Wells in which Nucor elects not to participate after Drilling, Completing and Equipping:

D. Drilling Costs, Completion Costs and Equipping Costs for Head’s Up Wells in which Encana elects not to participate shall be borne as set forth in the BJU Carry and Earning Agreement executed October 31, 2012 but dated effective November 1, 2012 between the Parties as follows:

Working Interest Ownership in a Head’s-Up Well in which Encana elects not to participate after Drilling, Completing and Equipping:

Attached to and made a part of that certain Operating Agreement executed October 31, 2012 but effective as of November 1, 2012 by and between Encana Oil &Gas (USA) Inc. and Nucor Energy Holdings Inc.

Attached to and made part of that certain Operating Agreement executed October 31, 2012 but effective November 1, 2012 , by and between Encana Oil & Gas (USA) Inc and Nucor Energy Holdings Inc..

IF THE PARTIES FAIL TO SELECT EITHER ONE OF COMPETING “ALTERNATIVE” PROVISIONS, OR SELECT ALL THE COMPETING “ALTERNATIVE” PROVISIONS, ALTERNATIVE 1 IN EACH SUCH INSTANCE SHALL BE DEEMED TO HAVE BEEN ADOPTED BY THE PARTIES AS A RESULT OF ANY SUCH OMISSION OR DUPLICATE NOTATION.

IN THE EVENT THAT ANY “OPTIONAL” PROVISION OF THIS ACCOUNTING PROCEDURE IS NOT ADOPTED BY THE PARTIES TO THE AGREEMENT BY A TYPED, PRINTED OR HANDWRITTEN INDICATION, SUCH PROVISION SHALL NOT FORM A PART OF THIS ACCOUNTING PROCEDURE, AND NO INFERENCE SHALL BE MADE CONCERNING THE INTENT OF THE PARTIES IN SUCH EVENT.

All terms used in this Accounting Procedure shall have the following meaning, unless otherwise expressly defined in the Agreement:

“Affiliate” means for a person, another person that controls, is controlled by, or is under common control with that person. In this definition, (a) control means the ownership by one person, directly or indirectly, of more than fifty percent (50%) of the voting securities of a corporation or, for other persons, the equivalent ownership interest (such as partnership interests), and (b) “person” means an individual, corporation, partnership, trust, estate, unincorporated organization, association, or other legal entity.

“Agreement” means the operating agreement, farmout agreement, or other contract between the Parties to which this Accounting Procedure is attached.

“Controllable Material” means Material that, at the time of acquisition or disposition by the Joint Account, as applicable, is so classified in the Material Classification Manual most recently recommended by the Council of Petroleum Accountants Societies (COPAS).

“Equalized Freight” means the procedure of charging transportation cost to the Joint Account based upon the distance from the nearest Railway Receiving Point to the property.

“Excluded Amount” means a specified excluded trucking amount most recently recommended by COPAS.

“Field Office” means a structure, or portion of a structure, whether a temporary or permanent installation, the primary function of which is to directly serve daily operation and maintenance activities of the Joint Property and which serves as a staging area for directly chargeable field personnel.

“First Level Supervision” means those employees whose primary function in Joint Operations is the direct oversight of the Operator’s field employees and/or contract labor directly employed On-site in a field operating capacity. First Level Supervision functions may include, but are not limited to:

“Joint Account” means the account showing the charges paid and credits received in the conduct of the Joint Operations that are to be shared by the Parties, but does not include proceeds attributable to hydrocarbons and by-products produced under the Agreement.

“Joint Operations” means all operations necessary or proper for the exploration, appraisal, development, production, protection, maintenance, repair, abandonment, and restoration of the Joint Property.

“Joint Property” means the real and personal property subject to the Agreement.

“Laws” means any laws, rules, regulations, decrees, and orders of the United States of America or any state thereof and all other

governmental bodies, agencies, and other authorities having jurisdiction over or affecting the provisions contained in or the transactions contemplated by the Agreement or the Parties and their operations, whether such laws now exist or are hereafter amended, enacted, promulgated or issued.

“Material” means personal property, equipment, supplies, or consumables acquired or held for use by the Joint Property.

“Non-Operators” means the Parties to the Agreement other than the Operator.

“Offshore Facilities” means platforms, surface and subsea development and production systems, and other support systems such as oil and gas handling facilities, living quarters, offices, shops, cranes, electrical supply equipment and systems, fuel and water storage and piping, heliport, marine docking installations, communication facilities, navigation aids, and other similar facilities necessary in the conduct of offshore operations, all of which are located offshore.

“Off-site” means any location that is not considered On-site as defined in this Accounting Procedure.

“On-site” means on the Joint Property when in direct conduct of Joint Operations. The term “On-site” shall also include that portion of Offshore Facilities, Shore Base Facilities, fabrication yards, and staging areas from which Joint Operations are conducted, or other facilities that directly control equipment on the Joint Property, regardless of whether such facilities are owned by the Joint Account.

“Operator” means the Party designated pursuant to the Agreement to conduct the Joint Operations.

“Parties” means legal entities signatory to the Agreement or their successors and assigns. Parties shall be referred to individually as “Party.”

“Participating Interest” means the percentage of the costs and risks of conducting an operation under the Agreement that a Party agrees, or is otherwise obligated, to pay and bear.

“Participating Party” means a Party that approves a proposed operation or otherwise agrees, or becomes liable, to pay and bear a share of the costs and risks of conducting an operation under the Agreement.

“Personal Expenses” means reimbursed costs for travel and temporary living expenses.

“Railway Receiving Point” means the railhead nearest the Joint Property for which freight rates are published, even though an actual railhead may not exist.

“Shore Base Facilities” means onshore support facilities that during Joint Operations provide such services to the Joint Property as a receiving and transshipment point for Materials; debarkation point for drilling and production personnel and services; communication, scheduling and dispatching center; and other associated functions serving the Joint Property.

“Supply Store” means a recognized source or common stock point for a given Material item.

“Technical Services” means services providing specific engineering, geoscience, or other professional skills, such as those performed by engineers, geologists, geophysicists, and technicians, required to handle specific operating conditions and problems for the benefit of Joint Operations; provided, however, Technical Services shall not include those functions specifically identified as overhead under the second paragraph of the introduction of Section III (Overhead). Technical Services may be provided by the Operator, Operator’s Affiliate, Non-Operator, Non-Operator Affiliates, and/or third parties.

The Operator shall bill Non-Operators on or before the last day of the month for their proportionate share of the Joint Account for the preceding month. Such bills shall be accompanied by statements that identify the AFE (authority for expenditure), lease or facility, and all charges and credits summarized by appropriate categories of investment and expense. Controllable Material shall be separately identified and fully described in detail, or at the Operator’s option, Controllable Material may be summarized by major Material classifications. Intangible drilling costs, audit adjustments, and unusual charges and credits shall be separately and clearly identified.

The Operator may make available to Non-Operators any statements and bills required under Section I.2 and/or Section I.3.A (Advances and Payments by the Parties) via email, electronic data interchange, internet websites or other equivalent electronic media in lieu of paper copies. The Operator shall provide the Non-Operators instructions and any necessary information to access and receive the statements and bills within the timeframes specified herein. A statement or billing shall be deemed as delivered twenty-four (24) hours (exclusive of weekends and holidays) after the Operator notifies the Non-Operator that the statement or billing is available on the website and/or sent via email or electronic data interchange transmission. Each Non-Operator individually shall elect to receive statements and billings electronically, if available from the Operator, or request paper copies. Such election may be changed upon thirty (30) days prior written notice to the Operator.

Where there are two or more Non-Operators, the Non-Operators shall make every reasonable effort to conduct a joint audit in a manner that will result in a minimum of inconvenience to the Operator. The Operator shall bear no portion of the Non-Operators’ audit cost incurred under this paragraph unless agreed to by the Operator. The audits shall not be conducted more than once each year without prior approval of the Operator, except upon the resignation or removal of the Operator, and shall be made at the expense of those Non-Operators approving such audit.

The Non-Operator leading the audit (hereinafter “lead audit company”) shall issue the audit report within ninety (90) days after completion of the audit testing and analysis; however, the ninety (90) day time period shall not extend the twenty-four (24) month requirement for taking specific detailed written exception as required in Section I.4.A (Adjustments) above. All claims shall be supported with sufficient documentation.

A timely filed written exception or audit report containing written exceptions (hereinafter “written exceptions”) shall, with respect to the claims made therein, preclude the Operator from asserting a statute of limitations defense against such claims, and the Operator hereby waives its right to assert any statute of limitations defense against such claims for so long as any Non-Operator continues to comply with the deadlines for resolving exceptions provided in this Accounting Procedure. If the Non-Operators fail to comply with the additional deadlines in Section I.5.B or I.5.C, the Operator’s waiver of its rights to assert a statute of limitations defense against the claims brought by the Non-Operators shall lapse, and such claims shall then be subject to the applicable statute of limitations, provided that such waiver shall not lapse in the event that the Operator has failed to comply with the deadlines in Section I.5.B or I.5.C.

If the Agreement contains no dispute resolution procedures and the audit issues cannot be resolved by negotiation, the dispute shall be submitted to mediation. In such event, promptly following one Party’s written request for mediation, the Parties to the dispute shall choose a mutually acceptable mediator and share the costs of mediation services equally. The Parties shall each have present at the mediation at least one individual who has the authority to settle the dispute. The Parties shall make reasonable efforts to ensure that the mediation commences within sixty (60) days of the date of the mediation request. Notwithstanding the above, any Party may file a lawsuit or complaint (1) if the Parties are unable after reasonable efforts, to commence mediation within sixty (60) days of the date of the mediation request, (2) for statute of limitations reasons, or (3) to seek a preliminary injunction or other provisional judicial relief, if in its sole judgment an injunction or other provisional relief is necessary to avoid irreparable damage or to preserve the status quo. Despite such action, the Parties shall continue to try to resolve the dispute by mediation.

If the Non-Operators fail to meet the deadline in Section I.5.C, any unresolved exceptions that were not addressed by the Non- Operators within one (1) year following receipt of the last substantive response of the Operator shall be deemed to have been withdrawn by the Non-Operators. If the Operator fails to meet the deadlines in Section I.5.B or I.5.C, any unresolved exceptions that were not addressed by the Operator within one (1) year following receipt of the audit report or receipt of the last substantive response of the Non-Operators, whichever is later, shall be deemed to have been granted by the Operator and adjustments shall be made, without interest, to the Joint Account.

Where an approval or other agreement of the Parties or Non-Operators is expressly required under other Sections of this Accounting Procedure and if the Agreement to which this Accounting Procedure is attached contains no contrary provisions in regard thereto, the Operator shall notify all Non-Operators of the Operator’s proposal and the agreement or approval of a majority in interest of the Non-Operators shall be controlling on all Non-Operators.

This Section I.6.A applies to specific situations of limited duration where a Party proposes to change the accounting for charges from that prescribed in this Accounting Procedure. This provision does not apply to amendments to this Accounting Procedure, which are covered by Section I.6.B.

If the Agreement to which this Accounting Procedure is attached contains no contrary provisions in regard thereto, this Accounting Procedure can be amended by an affirmative vote of ALL ( ) ~~or more~~ Parties, one of which is the Operator, having a combined working interest of at least 100 percent ( 100%), which approval shall be binding on all Parties, provided, however, approval of at least one (1) Non-Operator shall be required.

For the purpose of administering the voting procedures of Sections I.6.A and I.6.B, if Parties to this Agreement are Affiliates of each other, then such Affiliates shall be combined and treated as a single Party having the combined working interest or Participating Interest of such Affiliates.

For the purposes of administering the voting procedures in Section I.6.A, if a Non-Operator is an Affiliate of the Operator, votes under Section I.6.A shall require the majority in interest of the Non-Operator(s) after excluding the interest of the Operator’s Affiliate.

The Operator shall charge the Joint Account with the following items, to the extent that a reasonable and prudent operator would typically charge such items to the Joing Account:

Lease rentals and royalties paid by the Operator, on behalf of all Parties, for the Joint Operations.

Charges for the Operator’s employees identified in Section II.2.A may be made based on the employee’s actual salaries and wages, or in lieu thereof, a day rate representing the Operator’s average salaries and wages of the employee’s specific job category.

Charges for personnel chargeable under this Section II.2.A who are foreign nationals shall not exceed comparable compensation paid to an equivalent U.S. employee pursuant to this Section II.2, unless otherwise approved by the Parties pursuant to Section I.6.A (General Matters).

Material purchased or furnished by the Operator for use on the Joint Property in the conduct of Joint Operations as provided under Section IV (Material Purchases, Transfers, and Dispositions). Only such Material shall be purchased for or transferred to the Joint Property as may be required for immediate use or is reasonably practical and consistent with efficient and economical operations. The accumulation of surplus stocks shall be avoided.

The cost of contract services, equipment, and utilities used in the conduct of Joint Operations, except for contract services, equipment, and utilities covered by Section III (Overhead), or Section II.7 (Affiliates), or excluded under Section II.9 (Legal Expense). Awards paid to contractors shall be chargeable pursuant to COPAS MFI-49 (“Awards to Employees and Contractors”).

The costs of third party Technical Services are chargeable to the extent excluded from the overhead rates under Section III (Overhead).

In the absence of a separately negotiated agreement, equipment and facilities furnished by the Operator will be charged as follows:

Charges for services furnished by an Affiliate shall be charged in the same manner as Operator employees, pursuant to Section II.2. Charges for goods furnished by an Affiliate shall be charged in the same manner as charges for equipment and facilities furnished by Operator, pursuant to Section II.6.

If the Parties fail to designate an amount in Sections II.7.A or II.7.B, in each instance the amount deemed adopted by the Parties as a result of such omission shall be the amount established as the Operator’s expenditure limitation in the Agreement. If the Agreement does not contain an Operator’s expenditure limitation, the amount deemed adopted by the Parties as a result of such omission shall be zero dollars ($ 0.00).

All costs or expenses necessary for the repair or replacement of Joint Property resulting from damages or losses incurred, except to the extent such damages or losses result from a Party’s or Parties’ gross negligence or willful misconduct, in which case such Party or Parties shall be solely liable.

The Operator shall furnish the Non-Operator written notice of damages or losses incurred as soon as practicable after a report has been received by the Operator.

Recording fees and costs of handling, settling, or otherwise discharging litigation, claims, and liens incurred in or resulting from

operations under the Agreement, or necessary to protect or recover the Joint Property, to the extent permitted under the Agreement. Costs of the Operator’s or Affiliate’s legal staff or outside attorneys, including fees and expenses, are not chargeable unless approved by the Parties pursuant to Section I.6.A (General Matters) or otherwise provided for in the Agreement.

Notwithstanding the foregoing paragraph, costs for procuring abstracts, fees paid to outside attorneys for title examinations (including preliminary, supplemental, shut-in royalty opinions, division order title opinions), and curative work shall be chargeable to the extent permitted as a direct charge in the Agreement.

All taxes and permitting fees of every kind and nature, assessed or levied upon or in connection with the Joint Property, or the production therefrom, and which have been paid by the Operator for the benefit of the Parties, including penalties and interest, except to the extent the penalties and interest result from the Operator’s gross negligence or willful misconduct.

If ad valorem taxes paid by the Operator are based in whole or in part upon separate valuations of each Party’s working interest, then notwithstanding any contrary provisions, the charges to the Parties will be made in accordance with the tax value generated by each Party’s working interest.

Costs of tax consultants or advisors, the Operator’s employees, or Operator’s Affiliate employees in matters regarding ad valorem or other tax matters, are not permitted as direct charges unless approved by the Parties pursuant to Section I.6.A (General Matters).

Charges to the Joint Account resulting from sales/use tax audits, including extrapolated amounts and penalties and interest, are permitted, provided the Non-Operator shall be allowed to review the invoices and other underlying source documents which served as the basis for tax charges and to determine that the correct amount of taxes were charged to the Joint Account. If the Non-Operator is not permitted to review such documentation, the sales/use tax amount shall not be directly charged unless the Operator can conclusively document the amount owed by the Joint Account.

Net premiums paid for insurance required to be carried for Joint Operations for the protection of the Parties. If Joint Operations are conducted at locations where the Operator acts as self-insurer in regard to its worker’s compensation and employer’s liability insurance obligation, the Operator shall charge the Joint Account manual rates for the risk assumed in its self-insurance program as regulated by the jurisdiction governing the Joint Property. In the case of offshore operations in federal waters, the manual rates of the adjacent state shall be used for personnel performing work On-site, and such rates shall be adjusted for offshore operations by the U.S. Longshoreman and Harbor Workers (USL&H) or Jones Act surcharge, as appropriate.

Costs of acquiring, leasing, installing, operating, repairing, and maintaining communication facilities or systems, including satellite, radio and microwave facilities, between the Joint Property and the Operator’s office(s) directly responsible for field operations in accordance with the provisions of COPAS MFI-44 (“Field Computer and Communication Systems”). If the communications facilities or systems serving the Joint Property are Operator-owned, charges to the Joint Account shall be made as provided in Section II.6 (Equipment and Facilities Furnished by Operator). If the communication facilities or systems serving the Joint Property are owned by the Operator’s Affiliate, charges to the Joint Account shall not exceed average commercial rates prevailing in the area of the Joint Property. The Operator shall adequately document and support commercial rates and shall periodically review and update the rate and the supporting documentation.

Costs incurred for Technical Services and drafting to comply with ecological, environmental and safety Laws or standards recommended by Occupational Safety and Health Administration (OSHA) or other regulatory authorities. All other labor and functions incurred for ecological, environmental and safety matters, including management, administration, and permitting, shall be covered by Sections II.2 (Labor), II.5 (Services), or Section III (Overhead), as applicable.

Costs to provide or have available pollution containment and removal equipment plus actual costs of control and cleanup and resulting responsibilities of oil and other spills as well as discharges from permitted outfalls as required by applicable Laws, or other pollution containment and removal equipment deemed appropriate by the Operator for prudent operations, are directly chargeable.

Costs incurred for abandonment and reclamation of the Joint Property, including costs required by lease agreements or by Laws.

Any other expenditure not covered or dealt with in the foregoing provisions of this Section II (Direct Charges), or in Section III (Overhead) and which is of direct benefit to the Joint Property and is incurred by the Operator in the necessary and proper conduct of the Joint Operations. Charges made under this Section II.15 shall require approval of the Parties, pursuant to Section I.6.A (General Matters).

As compensation for costs not specifically identified as chargeable to the Joint Account pursuant to Section II (Direct Charges), the Operator shall charge the Joint Account in accordance with this Section III.

Functions included in the overhead rates regardless of whether performed by the Operator, Operator’s Affiliates or third parties and regardless of location, shall include, but not be limited to, costs and expenses of:

Overhead charges shall include the salaries or wages plus applicable payroll burdens, benefits, and Personal Expenses of personnel performing overhead functions, as well as office and other related expenses of overhead functions.

As compensation for costs incurred but not chargeable under Section II (Direct Charges) and not covered by other provisions of this Section III, the Operator shall charge on either:

Notwithstanding anything to the contrary in this Section III, Technical Services provided by Operator’s Affiliates are subject to limitations set forth in Section II.7 (Affiliates). Charges for Technical personnel performing non-technical work shall not be governed by this Section III.1.A, but instead governed by other provisions of this Accounting Procedure relating to the type of work being performed.

To compensate the Operator for overhead costs incurred in connection with a Major Construction project or Catastrophe, the Operator shall either negotiate a rate prior to the beginning of the project, or shall charge the Joint Account for overhead based on the following rates for any Major Construction project in excess of the Operator’s expenditure limit under the Agreement, or for any Catastrophe regardless of the amount. If the Agreement to which this Accounting Procedure is attached does not contain an expenditure limit, Major Construction Overhead shall be assessed for any single Major Construction project costing in excess of $100,000 gross.

Major Construction shall mean the construction and installation of fixed assets, the expansion of fixed assets, and any other project clearly discernible as a fixed asset required for the development and operation of the Joint Property, or in the dismantlement, abandonment, removal, and restoration of platforms, production equipment, and other operating facilities.

Catastrophe is defined as a sudden calamitous event bringing damage, loss, or destruction to property or the environment, such as an oil spill, blowout, explosion, fire, storm, hurricane, or other disaster. The overhead rate shall be applied to those costs necessary to restore the Joint Property to the equivalent condition that existed prior to the event.

Total cost shall mean the gross cost of any one project. For the purpose of this paragraph, the component parts of a single Major

Construction project shall not be treated separately, and the cost of drilling and workover wells and purchasing and installing pumping units and downhole artificial lift equipment shall be excluded. For Catastrophes, the rates shall be applied to all costs associated with each single occurrence or event.

On each project, the Operator shall advise the Non-Operator(s) in advance which of the above options shall apply.

For the purposes of calculating Catastrophe Overhead, the cost of drilling relief wells, substitute wells, or conducting other well operations directly resulting from the catastrophic event shall be included. Expenditures to which these rates apply shall not be reduced by salvage or insurance recoveries. Expenditures that qualify for Major Construction or Catastrophe Overhead shall not qualify for overhead under any other overhead provisions.

In the event of any conflict between the provisions of this Section III.2 and the provisions of Sections II.2 (Labor), II.5 (Services), or II.7 (Affiliates), the provisions of this Section III.2 shall govern.

The overhead rates provided for in this Section III may be amended from time to time if, in practice, the rates are found to be insufficient or excessive, in accordance with the provisions of Section I.6.B (Amendments).

The Operator is responsible for Joint Account Material and shall make proper and timely charges and credits for direct purchases, transfers, and dispositions. The Operator shall provide all Material for use in the conduct of Joint Operations; however, Material may be supplied by the Non- Operators, at the Operator’s option. Material furnished by any Party shall be furnished without any express or implied warranties as to quality, fitness for use, or any other matter.

Direct purchases shall be charged to the Joint Account at the price paid by the Operator after deduction of all discounts received. The Operator shall make good faith efforts to take discounts offered by suppliers, but shall not be liable for failure to take discounts except to the extent such failure was the result of the Operator’s gross negligence or willful misconduct. A direct purchase shall be deemed to occur when an agreement is made between an Operator and a third party for the acquisition of Material for a specific well site or location. Material provided by the Operator under “vendor stocking programs,” where the initial use is for a Joint Property and title of the Material does not pass from the manufacturer, distributor, or agent until usage, is considered a direct purchase. If Material is found to be defective or is returned to the manufacturer, distributor, or agent for any other reason, credit shall be passed to the Joint Account within sixty (60) days after the Operator has received adjustment from the manufacturer, distributor, or agent.

A transfer is determined to occur when the Operator (i) furnishes Material from a storage facility or from another operated property, (ii) has assumed liability for the storage costs and changes in value, and (iii) has previously secured and held title to the transferred Material. Similarly, the removal of Material from the Joint Property to a storage facility or to another operated property is also considered a transfer; provided, however, Material that is moved from the Joint Property to a storage location for safe-keeping pending disposition may remain charged to the Joint Account and is not considered a transfer. Material shall be disposed of in accordance with Section IV.3 (Disposition of Surplus) and the Agreement to which this Accounting Procedure is attached.

The value of Material transferred to/from the Joint Property should generally reflect the market value on the date of physical transfer. Regardless of the pricing method used, the Operator shall make available to the Non-Operators sufficient documentation to verify the Material valuation. When higher than specification grade or size tubulars are used in the conduct of Joint Operations, the Operator shall charge the Joint Account at the equivalent price for well design specification tubulars, unless such higher specification grade or sized tubulars are approved by the Parties pursuant to Section I.6.A (General Matters). Transfers of new Material will be priced using one of the following pricing methods; provided, however, the Operator shall use consistent pricing methods, and not alternate between methods for the purpose of choosing the method most favorable to the Operator for a specific transfer:

Transportation costs shall be added to the Material transfer price using the method prescribed by the COPAS Computerized

Equipment Pricing System (CEPS). If not using CEPS, transportation costs shall be calculated as follows:

Regardless of whether using CEPS or manually calculating transportation costs, transportation costs from the Railway Receiving Point to the Joint Property are in addition to the foregoing, and may be charged to the Joint Account based on actual costs incurred. All transportation costs are subject to Equalized Freight as provided in Section II.4 (Transportation) of this Accounting Procedure.

Sales and use taxes shall be added to the Material transfer price using either the method contained in the COPAS Computerized Equipment Pricing System (CEPS) or the applicable tax rate in effect for the Joint Property at the time and place of transfer. In either case, the Joint Account shall be charged or credited at the rate that would have governed had the Material been a direct purchase.

Except as provided in Section IV.2.D(3), all reconditioning costs required to return the Material to Condition “B” or to correct handling, transportation or other damages will be borne by the divesting property.

If the Material was originally charged to the Joint Account as used Material and placed in service for the Joint Property, the Material will be credited at the price determined in Sections IV.2.A (Pricing), IV.2.B (Freight), and IV.2.C (Taxes) multiplied by sixty-five percent (65%).

Unless otherwise agreed to by the Parties that paid for such Material, used Material transferred from the Joint Property that was not placed in service on the property shall be credited as charged without gain or loss.

The cost of reconditioning may be charged to the receiving property to the extent Condition “C” value, plus cost of reconditioning, does not exceed Condition “B” value.

Subject to Section II (Direct Charges) and Section III (Overhead) of this Accounting Procedure, costs incurred by the Operator in making Material serviceable including inspection, third party surveillance services, and other similar services will be charged to the Joint Account at prices which reflect the Operator’s actual costs of the services. Documentation must be provided to the Non-Operators upon request to support the cost of service. New coating and/or wrapping shall be considered a component of the Materials and priced in accordance with Sections IV.1 (Direct Purchases) or IV.2.A (Pricing), as applicable. No charges or credits shall be made for used coating or wrapping. Charges and credits for inspections shall be made in accordance with COPAS MFI-38 (“Material Pricing Manual”).

Loading and unloading costs related to the movement of the Material to the Joint Property shall be charged in accordance with the methods specified in COPAS MFI-38 (“Material Pricing Manual”).

Surplus Material is that Material, whether new or used, that is no longer required for Joint Operations. The Operator may purchase, but shall be under no obligation to purchase, the interest of the Non-Operators in surplus Material.

Dispositions for the purpose of this procedure are considered to be the relinquishment of title of the Material from the Joint Property to either a third party, a Non-Operator, or to the Operator. To avoid the accumulation of surplus Material, the Operator should make good faith efforts to dispose of surplus within twelve (12) months through buy/sale agreements, trade, sale to a third party, division in kind, or other dispositions as agreed to by the Parties.

Disposal of surplus Materials shall be made in accordance with the terms of the Agreement to which this Accounting Procedure is attached. If the Agreement contains no provisions governing disposal of surplus Material, the following terms shall apply:

Whenever Material is available only at inflated prices due to national emergencies, strikes, government imposed foreign trade restrictions, or other unusual causes over which the Operator has no control, for direct purchase the Operator may charge the Joint Account for the required Material at the Operator’s actual cost incurred in providing such Material, making it suitable for use, and moving it to the Joint Property. Material transferred or disposed of during premium pricing situations shall be valued in accordance with Section IV.2 (Transfers) or Section IV.3 (Disposition of Surplus), as applicable.

Items fabricated by the Operator’s employees, or by contract laborers under the direction of the Operator, shall be priced using the value of the Material used to construct the item plus the cost of labor to fabricate the item. If the Material is from the Operator’s scrap or junk account, the Material shall be priced at either twenty-five percent (25%) of the current price as determined in Section IV.2.A (Pricing) or scrap value, whichever is higher. In no event shall the amount charged exceed the value of the item commensurate with its use.

Mill rejects purchased as “limited service” casing or tubing shall be priced at eighty percent (80%) of K-55/J-55 price as determined in Section IV.2 (Transfers). Line pipe converted to casing or tubing with casing or tubing couplings attached shall be priced as K-55/J-55 casing or tubing at the nearest size and weight.

The Operator shall maintain records of Controllable Material charged to the Joint Account, with sufficient detail to perform physical inventories.

Adjustments to the Joint Account by the Operator resulting from a physical inventory of Controllable Material shall be made within twelve (12) months following the taking of the inventory or receipt of Non-Operator inventory report. Charges and credits for overages or shortages will be valued for the Joint Account in accordance with Section IV.2 (Transfers) and shall be based on the Condition “B” prices in effect on the date of physical inventory unless the inventorying Parties can provide sufficient evidence another Material condition applies.

Physical inventories shall be performed by the Operator upon written request of a majority in working interests of the Non-Operators (hereinafter, “directed inventory”); provided, however, the Operator shall not be required to perform directed inventories more frequently than once every five (5) years. Directed inventories shall be commenced within one hundred eighty (180) days after the Operator receives written notice that a majority in interest of the Non-Operators has requested the inventory. All Parties shall be governed by the results of any directed inventory.

Expenses of directed inventories will be borne by the Joint Account; provided, however, costs associated with any post-report follow-up work in settling the inventory will be absorbed by the Party incurring such costs. The Operator is expected to exercise judgment in keeping expenses within reasonable limits. Any anticipated disproportionate or extraordinary costs should be discussed and agreed upon prior to commencement of the inventory. Expenses of directed inventories may include the following:

Physical inventories that are not requested by the Non-Operators may be performed by the Operator, at the Operator’s discretion. The expenses of conducting such Operator-initiated inventories shall not be charged to the Joint Account.

Subject to the terms of the Agreement to which this Accounting Procedure is attached, the Non-Operators may conduct a physical inventory at reasonable times at their sole cost and risk after giving the Operator at least ninety (90) days prior written notice. The Non-Operator inventory report shall be furnished to the Operator in writing within ninety (90) days of completing the inventory fieldwork.

The expense of conducting inventories other than those described in Sections V.1 (Directed Inventories), V.2.A (Operator Inventories), or V.2.B (Non-Operator Inventories), shall be charged to the Party requesting such inventory; provided, however, inventories required due to a change of Operator shall be charged to the Joint Account in the same manner as described in Section V.1 (Directed Inventories).

Attached to and made a part of the certain Operating Agreement executed October 31, 2012 but dated effective November 1, 2012, by and between, Encana Oil &Gas (USA) Inc. and Nucor Energy Holdings Inc.


a. Bodily Injury by Accident		$1,000,000 each accident
b. Bodily Injury by Disease		$1,000,000 policy limit
c. Bodily Injury by Disease		$1,000,000 each employee


a. Bodily Injury		$2,000,000 per occurrence
b. Property Damage		$2,000,000 per occurrence

Nucor Energy Holdings Inc. hereby Elects Does Not Elect to participate for a [%] WI in the drilling of the [well] under Encana’s insurance program as follows:

USD 10,000,000 limit, scaled to interest, each occurrence and in the aggregate, subject to USD 1,000,000 deductible, scaled to interest, each occurrence.

USD 10,000,000 limit, scaled to interest, each occurrence subject to USD 1,000,000 deductible, scaled to interest, each occurrence

Coverage is extended to the above-named non-operator only in respect of operations of the above-noted well.

In the event that you have elected to participate in this operation, please be advised that Commercial General Liability and Operator’s Extra Expense insurance covering your interest is required.

Attached to and made a part of the certain Operating Agreement, executed October 31, 2012 but dated effective November 1, 2012, by and between Encana Oil &Gas (USA) Inc. and Nucor Energy Holdings Inc.

All of the acreage and depths subject to the Operating Agreement, subject to the following: (i) if a well is completed in two (2) or more producing intervals where the working interest and royalty ownership is not uniform, producing intervals having uniform working interest and royalty ownership shall be considered a separate Balancing Area, and (ii) if a well or group of wells have uniform working interest and royalty ownership, but any of such well or wells are considered to be in a different state and/or federal communitized area, state or federal unit, or pooled unit, each such well or group of wells shall be considered a separate Balancing Area.

2.1 If this Agreement covers more than one Balancing Area, it shall be applied as if each Balancing Area were covered by separate but identical agreements. All balancing hereunder, other than cash settlements made pursuant to Section 7, shall be on the basis of Gas taken from the Balancing Area measured in Mcfs.

2.2 In the event that all or part of the Gas deliverable from a Balancing Area is or becomes subject to one or more maximum lawful prices, any Gas not subject to price controls shall be considered as produced from a single Balancing Area and Gas subject to each maximum lawful price category shall be considered produced from a separate Balancing Area.

3.1 Each Party desiring to take Gas will notify the Operator, or cause the Operator to be notified, of the volumes nominated, the name of the transporting pipeline and the pipeline contract number (if available) and the meter station relating to such delivery, sufficiently in advance for the Operator, acting with reasonable diligence, to meet all nomination and other requirements. Operator is authorized to deliver the volumes so nominated and confirmed (if confirmation is required) to the transporting pipeline in accordance with the terms of this Agreement.

3.2 Each Party to take its Full Share of Current Production each month, to the extent that such production is required to maintain leases in effect, to protect the producing capacity of a well or reservoir, to preserve correlative rights, or to maintain oil production.

3.3 When a Party fails for any reason to take its Full Share of Current Production (as such Share may be reduced by the right of the other Parties to make up for Underproduction as provided herein), the other Parties shall be entitled to take any Gas which such Party fails to take. To the extent practicable, such Gas shall be made available initially to each Underproduced Party in the proportion that its Percentage Interest in the Balancing Area bears to the total Percentage Interests of all Underproduced Parties desiring to take such Gas and then be made available to the other Parties in the proportion that their respective Percentage Interests in the Balancing Area bear to the total Percentage Interests of such Parties.

3.4 All Gas taken by a Party in accordance with the of this Agreement, regardless of whether such Party is underproduced or overproduced, shall be regarded as Gas taken for its own account with title thereto being in such taking Party.

3.5 Notwithstanding the provisions of Section 3.3 hereof, no Overproduced Party shall be entitled in any month to take any Gas in excess of three hundred percent ( 300% ) of its Percentage Interest of the Balancing Area’s then-current Maximum Monthly Availability; provided, however, that this limitation shall not apply to the extent that it would preclude production that is required to maintain leases in effect, to protect the producing capacity of a well or reservoir, to preserve correlative rights, or to maintain oil production. “Maximum Monthly Availability” shall mean the maximum average monthly rate of production at which Gas can be delivered from the Balancing Area, as determined by the Operator, considering the maximum efficient well rate for each well within the Balancing Area, the maximum allowable(s) set by the appropriate regulatory agency, mode of operation, production facility capabilities and pipeline pressures.

3.6 In the event the Operator determines that a Party has failed to make arrangements to take its Full Share of Current Production required to be produced to maintain leases in effect, to protect the producing capacity of a well or reservoir, to preserve correlative rights, or to maintain oil production, the Operator shall notify such Party that it has failed to take such Full Share of Current Production. If the notified Party does not begin taking its Full Share of Current Production effective the second business day following notification from the Operator, the Operator shall, to the extent practicable, make available to the Underproduced Party(ies) any part of such Party’s Full Share of Current Production that such Party fails to take or the Operator may sell any part of such Party’s Full Share of Current Production that such Party fails to take for the account of such Party and render to such Party, on a current basis, the full proceeds of the sale, less any reasonable marketing, compression, treating, gathering or transportation costs incurred directly in connection with the sale of such Full Share of Current Production. In making the sale contemplated herein, the Operator shall be obligated only to obtain such price and conditions for the sale as are reasonable under the circumstances and shall not be obligated to share any of its markets. Any such sale by Operator under the terms hereof shall be only for such reasonable periods of time as are consistent with the minimum needs of the industry under the particular circumstances, but in no event for a period in excess of one year. Notwithstanding the provisions of Section 3.4 hereof, Gas sold by Operator for a Party under the provisions hereof shall be deemed to be Gas taken for the account of such Party.

Effective the first day of any calendar month following at least thirty (30) days’ prior written notice to the Operator, any Underproduced Party may begin taking, in addition to its Full Share of Current Production and any Makeup Gas taken pursuant to Section 3.3 of this Agreement, a share of current production determined by multiplying twenty five percent (25%) of the Full Shares of Current Production of all Overproduced Parties by a fraction, the numerator of which is the Percentage Interest of such Underproduced Party and the denominator of which is the total of the Percentage Interests of all Underproduced Parties desiring to take Makeup Gas. In no event will an Overproduced Party be required to provide more than twenty five percent (25%) of its Full Share of Current Production for Makeup Gas.

5.1 The Operator will maintain appropriate accounting on a monthly and cumulative basis of the volumes of Gas that each Party is entitled to receive and the volumes of Gas actually taken or sold for each Party’s account. Within sixty (60) days after the month of production, the Operator will furnish a statement for such month showing (1) each Party’s Full Share of Current Production, (2) the total volume of Gas actually taken or sold for each Party’s account, (3) the difference between the volume taken by each Party and that Party’s Full Share of Current Production, (4) the Overproduction or Underproduction of each Party, and (5) other data as recommended by the provisions of the Council of Petroleum Accounting Societies Bulletin No.24, as amended or supplemented hereafter. Each Party taking Gas will promptly provide to the Operator any data required by the Operator for preparation of the statements required hereunder. If the Operator is notified that a Party elects to have another Party market or otherwise dispose of its Gas, the Operator will allocate to each such Party, in proportion to their respective Percentage Interests, the difference between the total volume of Gas actually taken by such Parties and their combined Full Share of Current Production.

5.2 If any Party fails to provide the data required herein for four (4) consecutive production months, the Operator, or where the Operator has failed to provide data, another Party, may audit the production and Gas sales and transportation volumes of the non-reporting Party to provide the required data. Such audit shall be conducted only after reasonable notice and during normal business hours in the office of the Party whose records are being audited. All costs associated with such audit will be charged to the account of the Party failing to provide the required data.

6.1 Each Party taking Gas shall pay or cause to be paid all production and severance taxes due on all volumes of Gas actually taken by such Party.

6.2 Each Party shall pay or cause to be paid Royalty due with respect to Royalty owners to whom it is accountable based on the volume of Gas actually taken for its account.

6.3 In the event that any governmental authority requires that Royalty payments be made on any other basis than that provided for in this Section 6, each Party agrees to make such Royalty payments accordingly, commencing on the effective date required by such governmental authority, and the method provided for herein shall be thereby superseded.

7.1 Each Party will work cooperatively pursuant to Section 4.0 to reduce any cumulative Gas production imbalance to as close to zero (0) as practicable. Upon the earlier of (i) the plugging and abandonment of the last producing interval in the Balancing Area, (ii) the termination of the Operating Agreement or any pooling or unit agreement covering the Balancing Area, (iii) any time no Gas is taken from the Balancing Area for a period of twelve (12) consecutive months, (iv) all leases in the Balancing Area have expired, or (v) the end of any calendar year, any Party may give written notice calling for cash settlement of the Gas production imbalances among the Parties. Such notice shall be given to all Parties in the Balancing Area.

7.2 Within sixty (60) days after the notice calling for cash settlement under Section 7.1, the Operator will distribute to each Party a Final Gas Settlement Statement detailing the quantity of Overproduction owed by each Overproduced Party to each Underproduced Party and identifying the month to which such Overproduction is attributed, pursuant to the methodology set out in Section 7.3.

7.3 The amount of the cash settlement will be based on the proceeds received by the Overproduced Party under an Arm’s Length Agreement for the Gas taken from time to time by the Overproduced Party in excess of the Overproduced Party’s Full Share of Current Production. Any Makeup Gas taken by the Underproduced Party prior to monetary settlement hereunder will be applied to offset Overproduction chronologically in the order of accrual.

7.4 The values used for calculating the cash settlement under Section 7.3 will include all proceeds received for the sale of the Gas by the Overproduced Party calculated at the Balancing Area, after deducting any production or severance taxes paid and any Royalty actually paid by the Overproduced Party to an Underproduced Party’s Royalty owner(s), to the extent said payments amounted to a discharge of said Underproduced Party’s Royalty obligation, as well as any reasonable marketing, compression, treating, gathering or transportation costs incurred directly in connection with the sale of the Overproduction.

7.5 To the extent the Overproduced Party did not sell all Overproduction under an Arm’s Length Agreement, the cash settlement will be based on the weighted average price received by the Overproduced Party for any gas sold from the Balancing Area under Arm’s Length Agreements during the months to which such Overproduction is attributed. In the event that no sales under Arm’s Length Agreements were made during any such month the cash settlement for such month will be based on the spot sales prices published for the applicable geographic area during such month in a mutually acceptable pricing bulletin.

7.6 Interest compounded at the prime rate published by the Wall Street Journal plus one percent (1%) per annum or the maximum lawful rate of interest applicable to the Balancing Area, whichever is less, will accrue for all amounts due under Section 7.1, beginning the first day following the date payment is due pursuant to Section 7.3. Such interest shall be borne by the Operator or any Overproduced Party in the proportion that their respective delays beyond the deadlines set out in Sections 7.2 contributed to the accrual of the interest.

7.7 In lieu of the cash settlement required by Section 7.3, an Overproduced Party may deliver to the Underproduced Party an offer to settle its Overproduction in-kind and at such rates, quantities, times and sources as may be agreed upon by the Underproduced Party. If the Parties are unable to agree upon the manner in which such in-kind settlement gas will be furnished within sixty (60) days after the Overproduced Party’s offer to settle in kind, which period may be extended by agreement of said Parties, the Overproduced Party shall make a cash settlement as provided in Section 7.3. The making of an in-kind settlement offer under this Section 7.7 will not delay the accrual of interest on the cash settlement should the Parties fail to reach agreement on an in-kind settlement.

Nothing in this Agreement shall change or affect any Party’s obligation to pay its proportionate share of all costs and liabilities incurred in operations on or in connection with the Balancing Area, as its share thereof is set forth in the Operating Agreement, irrespective of whether any Party is at any time selling and using Gas or whether such sales or use are in proportion to its Percentage Interest in the Balancing Area.

The Parties shall share proportionately in and own all liquid hydrocarbons recovered with Gas by field equipment operated for the joint account in accordance with their Percentage Interests in the Balancing Area.

Notwithstanding any provision in this Agreement or any other agreement between the Parties hereto, and further notwithstanding any termination or cancellation of this Agreement, for a period of two (2) years from the end of the calendar year in which any information to be furnished under Section 5 and 7 hereof is supplied, any Party shall have the right to audit the records of any other Party regarding quantity, including but not limited to information regarding Btu-content. Any Underproduced Party shall have the right for a period of two (2) years from the end of the calendar year in which any cash settlement is received pursuant to Section 7 to audit the records of any Overproduced Party as to all matters concerning values, including but not limited to information regarding prices and disposition of Gas from the Balancing Area. Any such audit shall be conducted at the expense of the Party or Parties desiring such audit, and shall be conducted, after reasonable notice, during normal business hours in the office of the Party whose records are being audited. Each Party hereto agrees to maintain records as to the volumes and prices of Gas sold each month and the volumes of Gas used in its own operations, along with the Royalty paid on any such Gas used by a Party in its own operations. The audit rights provided for in this Section 10 shall be in addition to those provided for in Section 5.2 of this Agreement.

11.1 As between the Parties, in the event of any conflict between the provisions of this Agreement and the provisions of any gas sales contract, or in the event of any conflict between the provisions of this Agreement and the provisions of the Operating Agreement, the provisions of this Agreement shall govern.

11.2 Each Party agrees to defend, indemnify and hold harmless all other Parties from and against any and all liability for any claims, which may be asserted by any third party which now or hereafter stands in a contractual relationship with such indemnifying Party and which arise out of the operation of this Agreement or any activities of such indemnifying Party under the provisions of this Agreement, and does further agree to save the other Parties harmless from all judgments or damages sustained and costs incurred in connection therewith.

11.3 Except as otherwise provided in this Agreement, Operator is authorized to administer the provisions of this Agreement, but shall have no liability to the other Parties for losses sustained or liability incurred which arise out of or in connection with the performance of Operator’s duties hereunder, except such as may result from Operator’s gross negligence or willful misconduct. Operator shall not be liable to any Underproduced Party for the failure of any Overproduced Party (other than Operator) to pay any amounts owed pursuant to the terms hereof.

11.4 This Agreement shall remain in full force and effect for as long as the Operating Agreement shall remain in force and effect as to the Balancing Area, and thereafter until the Gas accounts between the Parties are settled in full, and shall inure to the benefit of and be binding upon the Parties hereto, and their respective heirs, successors, legal representatives and assigns, if any. The Parties hereto agree to give notice of the existence of this Agreement to any successor in interest of any such Party and to provide that any such successor shall be bound by this Agreement, and shall further make any transfer of any interest subject to the Operating Agreement, or any part thereof, also subject to the terms of this Agreement.

11.5 Unless the context clearly indicates otherwise, words used in the singular include the plural, the plural includes the singular, and the neuter gender includes the masculine and the feminine.

11.6 In the event that any “Optional” provision of this Agreement is not adopted by the Parties to this Agreement by a typed, printed or handwritten indication, such provision shall not form a part of this Agreement, and no inference shall be made concerning the intent of the Parties in such event. In the event that any “Alternative” provision of this Agreement is not so adopted by the Parties, Alternative 1 in each such instance shall be deemed to have been adopted by the Parties as a result of any such omission. In those cases where it is indicated that an Optional provision may be used only if a specific Alternative is selected: (i) an election to include said Optional provision shall not be effective unless the Alternative in question is selected; and (ii) the election to include said Optional provision must be expressly indicated hereon, it being understood that the selection of an Alternative either expressly or by default as provided herein shall not, in and of itself, constitute an election to include an associated Optional Provision.

11.7 This Agreement shall bind the Parties in accordance with the provisions hereof, and nothing herein shall be construed or interpreted as creating any rights in any person or entity not a signatory hereto, or as being a stipulation in favor of any such person or entity.

11.8 In the event Internal Revenue Service regulations require a uniform method of computing taxable income by all Parties, each Party agrees to compute and report income to the Internal Revenue Service based on the quantity of Gas taken for its account (the cumulative method) in accordance with such regulations, insofar as same relate to sales method tax computations.

12.1 Subject to the provisions of Sections 12, and notwithstanding anything in this Agreement or in the Operating Agreement to the contrary, if any Party assigns (including any sale, exchange or other transfer) any of its working interest in the Balancing Area when such Party is an Underproduced or Overproduced Party, the assignment or other act of transfer shall, insofar as the Parties hereto are concerned, include all interest of the assigning or transferring Party in the Gas, all rights to receive or obligations to provide or take Makeup Gas and all rights to receive or obligations to make any monetary payment which may ultimately be due hereunder, as applicable. Operator and each of the other Parties hereto shall thereafter treat the assignment accordingly, and the assigning or transferring Party shall look solely to its assignee or other transferee for any interest in the Gas or monetary payment that such Party may have or to which it may be entitled, and shall cause its assignee or other transferee to assume its obligations hereunder.

12.2 The provisions of this Section 12 shall not be applicable in the event any Party mortgages its interest or disposes of its interest by merger, reorganization, consolidation or sale of substantially all of its assets to a subsidiary or parent company, or to any company in which any parent or subsidiary of such Party owns a majority of the stock of such company.

The Parties agree to resolve all disputes concerning or relating to this Agreement pursuant to the provisions of this Section. The Parties agree to submit all disputes to binding arbitration in Denver, Colorado. The arbitration will be conducted according to the procedure that follows. The arbitration proceedings shall be governed by Colorado law and shall be conducted in accordance with the rules for Non-Administered Arbitration of Business Disputes published by The Center for Public Resources, Inc., with discovery to be conducted in accordance with the Federal Rules of Civil Procedure, and with any disputes over the scope of discovery to be determined by the Arbitrators (as defined below). The arbitration shall be before a single Arbitrator chosen by the mutual agreement of the Parties, or if no agreement as to the identity of the Arbitrator can be reached within ten days, a three-person panel of neutral Arbitrators, consisting of one person chosen by each Party, and the two Arbitrators so selected choosing the third. The panel so chosen or the single person are referred to herein as the “Arbitrators.” The Arbitrators shall conduct a hearing no later than 60 days after submission of the matter to arbitration, and the Arbitrators shall render a written decision within 30 days of the hearing. At the hearing, the Parties shall present such evidence and witnesses as they may choose, with or without counsel. Adherence to formal rules of evidence shall not be required, but the Arbitrators shall consider any evidence and testimony that they determine to be relevant, in accordance with procedures that they determine to be appropriate. Any award entered in the arbitration shall be made by a written opinion stating the reasons and basis for the award made and any payment due pursuant to the arbitration shall be made within 15 days of the decision by the Arbitrators. The decision of the Arbitrators shall be binding on the Parties, final and non-appealable, and may be filed in a court of competent jurisdiction and may be enforced by either Party as a final judgment of such court. Each Party shall bear its own costs and expenses of the arbitration, provided, however, that the costs of employing the Arbitrators shall by shared equally by the Parties.

In the performance of work under this Agreement, Operator agrees to comply with all the provisions of Section 202 (1) to (7), inclusive, of Executive Order 11246 (30 F.R 12319), as amended by Executive Order 11758 – Employment of the Handicapped, Equal Employment Opportunity 11701 – Employment of Veterans, and Equal Employment Opportunity 11625 – Minority Business Enterprise.

The foregoing obligations of Operator shall be modified as necessary to comply with current executive orders, regulations and statutes, federal or state, relating to non-discrimination in employment.

Operating Agreement executed October 31, 2012 but dated effective November 1, 2012 by and between Nucor Energy Holdings Inc. and Encana Oil & Gas (USA) Inc.