Document:

BJU Carry and Earning Agreement

 Exhibit 10(xxiii) 
 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.” 

RECITALS 

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. 
 AGREEMENT 
 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: 

Definitions 
 For
purposes of this Agreement, the following terms and phrases shall have the following meanings: 
 “Acquiring
Party” is defined in Section 22.2. 
 “Acquisition Costs” is defined in Section
22.2 
 “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. 

“AMI Purchase Price” is defined in Section 22.2. 

“AMI Term” is defined in Section 22.1. 
 “Applicable Law” means any applicable statute, law (including common law), regulation, rule, ruling, order, writ, injunction, or decree of or by any Governmental Authority. 

“Arbitrators” is defined in Section 18. 
 “Base Price” is defined in Section 2.3 A. 
 “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. 
 “Carried working interest” is defined in Section 4.2. 

“Carry Price” is defined in Section 2.2 C. 

“Carry Well Threshold” is defined in Section 2.4 C. 

“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. 

  
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 “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. 
 “Cumulative Amount” is defined in Section 2.2 D.

 “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). 

“Defaulting Party” is defined in Section 9. 

“Effective Date” is defined in the heading. 

  
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 “Encana” means Encana Oil & Gas (USA) Inc. 

“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. 
 “Excess Well Costs” is defined in Section 2.2 B. 

“Existing Drilling Program” is defined in Section 2.1 F. 

“Formation” means the [***]. 
 “Force majeure event” is defined in Section 6. 

“Force-pooled Owner” is defined in Section 2.1 H(v). 

“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. 

  
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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. 
 “HUW Restriction” is defined
in Section 2.4 B. 
 “Individual Carry Well Cap” is defined in Section 2.2 B. 

“Individual Nucor Well Cost” means [***]. 
 “JIB” means Joint Interest Billing. 
 “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. 

“Member” means the Williams Fork Member of the Formation. 

“New Operating Agreement” is defined in Section 4.1. 

“Nucor” means Nucor Energy Holdings Inc. 
 “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 Cost Share” is defined in Section 2.2 B. 

“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. 
 “Oil and Gas Interests” is defined in Recital A. 
 [***] This confidential
information has been omitted and filed separately with the Securities and Exchange Commission pursuant to a request for confidential treatment. 

  
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 “Parent” means Nucor Corporation. 

“Party” and “Parties” are defined in the heading. 

“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. 
 “Pre-Effective Date Carry Wells” is defined in Section 2.2 A. 
 “Price” is defined in Section 2.3 A. 
 “Property”
is defined in Recital A. 
 “Rig Limitation Period” is defined in Section 2.2 A. 

“Spud Date” means, with respect to any Nucor Well, the date of commencement of setting surface casing with a surface casing
rig. 
 “Suspension Notice” is defined in Section 2.3 A. 

“Term” of this Agreement is set forth in Section 7. 

  
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 “Third Party” means any Person other than Encana, Nucor, or any of their
Affiliates. 
 “Undivided Interest” is defined in Section 22.3. 

“Well Limit” means 3,850 wells. 
 “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. 

Section 1. 

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

	1.1	Exhibit A – Property 

  

	1.2	Exhibit B – Producer Price Index Data 

  

	1.3	Exhibit C – Form of Wellbore Assignment for Carry Wells 

  

	1.4	Exhibit D – Tax Partnership Agreement 

  

	1.5	Exhibit E – Form of New Operating Agreement 

  

	1.6	Schedule 2.2 A – Pre-Effective Date Carry Wells 

  

	1.7	Schedule 5.2 – Encana and Affiliate Burdens over the Property 

 Section 2. 
 Drilling of Nucor Wells 

 

	2.1	General Provisions Relating to Nucor Wells. 

 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 

  
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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. 

  
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 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. 
 H. Wellbore Assignment in Nucor Wells. 

  
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 (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: 
 (a) be effective as of the date of first production of each Nucor Well, 
 (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. 

  
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 (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. 

  
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 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. 
  

	2.2	Carry Wells. 

 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. 

  
 -12-

 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. 

[***] 
 C. Determination of
Nucor Carry. [***] 
 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. 
  

	2.3	Ability to Suspend Funding of Carry Wells. [***] 

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

  
 -13-

	2.4	Head’s Up Wells. 

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. 

  
 -14-

 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. 
 Section 3.

 Title and Other Information 
 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. 
 Section 4.

 Operations 
  

	4.1	New Operating Agreement. 

 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 

  
 -15-

 
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. 

 

	4.2	Operation of Head’s Up Wells in which Encana Does Not Participate. 

 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. 

 

	4.3	Conflicts with Existing Operating Agreements. 

 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. 
 4.4 Payment of
Burdens. 

  
 -16-

 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. 
 Section 5. 
 Representations, Warranties and Agreements 

 

	5.1	Representations and Warranties. 

 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 

  
 -17-

 
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. 

 

	5.2	Representations and Warranties of Encana. 

Encana hereby represents and warrants to Nucor the following: 
 A. Schedule 5.2. 
 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 

  
 -18-

 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. 
 Section 6. 
 Force Majeure 
 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. 
 Section 7. 

Term 
 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. 

  
 -19-

 Section 8. 
 Assignability 
  

	8.1	Restrictions on Assignment. 

 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. 
  

	8.2	Change of Control. 

 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. 

  
 -20-

 Section 9. 
 Payment Offset 
 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. 

Section 10. 

Notices 
 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: 
 To
Encana:                    Encana Oil & Gas (USA) Inc. 

370 17th Street, Suite 1700 
 Denver, Colorado 80202 
 Attention: Team Lead Land, South Rockies

 Phone: 720.876.3644 

Fax: 720.876.4644 
 Email: helen.capps@encana.com 
 With a copy of notices to:

 Encana Oil & Gas (USA) Inc. 

370 17th Street, Suite 1700 
 Denver, Colorado 80202 
 Attention: Legal Department 

Phone: 303.623.2300 
 Fax: 720.876.3655 

  
 -21-

 To
Nucor:                    Nucor Energy Holdings Inc. 
 1915 Rexford Road 
 Charlotte, North Carolina 28211 

Attention: Chief Financial Officer 

Phone: 704.365.1921 
 Fax: 704.362.4208 
 Email: jim.frias@nucor.com 

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

Section 11. 

Relationship of the Parties 

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. 

Section 12. 

Entire Agreement 
 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. 
 Section 13. 
 Governing Law 
 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. 

  
 -22-

 Section 14. 
 Amendments; Waiver 
 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. 
 Section 15. 

Public Announcements 
 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. 
 Section 16. 
 Severability 

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. 

Section 17. 

Mutuality 
 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.

 Section 18. 
 Dispute Resolution 
 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 

  
 -23-

 
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. 
 Section 19. 
 Waiver of Exemplary and Punitive Damages 
 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. 
 Section 20.

 Indemnification 
  

	20.1	Indemnification of Nucor by Encana. 

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 

  
 -24-

 
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. 
  

	20.2	Environmental Indemnification of Nucor by Encana. 

 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. 
 20.3 Indemnification of Encana by Nucor. 

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. 
 Section 21. 
 Insurance Matters 

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. 

Section 22. 

AMI Area and AMI Interests 
 22.1
General. 
 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. 

  
 -25-

	22.2	AMI Interest Acquisition. 

 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. 

 

	22.3	Computation of AMI Interest Offered and the Purchase Price. 

 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 

  
 -26-

 (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. 
  

	22.4	Other Party’s Response Period. 

 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. 

 

	22.5	Participation; Conveyances. 

 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-

  
 -27-

 
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. 

Section 23. 

Parent Guarantee 
 By its
execution of this Agreement, Parent fully guarantees the performance by Nucor of this Agreement. 
 Section 24. 

No Third Party Beneficiaries 

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. 
 Section 25. 

Conflicts 
 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. 
 Section 26. 
 Specific Performance 

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. 

Section 27. 

Further Assurances 
 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. 

  
 -28-

 Section 28. 
 Counterpart Execution 
 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. 
 (Signature Page Follows) 

  
 -29-

 Signature page to Carry and Earning Agreement 

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

 

									
	Encana Oil & Gas (USA) Inc.	 		 	Nucor Energy Holdings Inc.
					
	By:	 	/s/ Darrin Henke	 		 	By:	 	/s/ Joseph Stratman
		 	Darrin Henke	 		 		 	Joseph Stratman
		 	Vice President, South Rockies	 		 		 	President
			
		 		 	Nucor Corporation
					
		 		 		 	By:	 	/s/ Joseph Stratman
		 		 		 		 	Joseph Stratman
		 		 		 		 	Executive Vice President

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

 Exhibit B 
 Attached to and made 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. 
 U.S. Bureau of Labor Statistics - Producer Price Index Data 

Industries and their products (NAICS Classifications) 
 Oil and Gas Industry Data—NAICS Series 211xxx and 213xxx 
 PRODUCER
PRICE INDICES 
  

			
	 	 
	 	  	O&G Industry—Drilling O&G Wells Indexes
	 	 
	 	  	Series Id: PCU213111—213111
	 	 
	 	  	Industry: Drilling oil and gas wells
	 	 
	 	  	Product: Drilling oil and gas wells
	 	 
	 	  	Base Date: 1985-12
	 	 
	 	  	Composite PPI Weighted Average—20%:

  

			
	 	 
	 	  	O&G Industry—Oilfield Services Index:
	 	 
	 	  	Series Id: PCU213112—213112
	 	 
	 	  	Industry: Support Activities for oil and gas operations
	 	 
	 	  	Product: Support Activities for oil and gas operations
	 	 
	 	  	Base Date: 1985-12
	 	 
	 	  	Composite PPI Weighted Average—65%:

  

			
	 	 
	 	  	Metal & Metal Products—Steel Pipe & Tube
Index:
	 	 
	 	  	Series Id: WPU0101706—0101706
	 	 
	 	  	Commodity Group—Metal & Metal Products
	 	 
	 	  	Product: Steel Pipe & Tube
	 	 
	 	  	Base Date: 198206
	 	 
	 	  	Composite PPI Weighted Average—15%:

 EXHIBIT C 
 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 
 Nucor Energy Holdings Inc. 
 Form of Wellbore Assignment and
Conveyance 
  

					
	 THE STATE OF COLORADO    
	  	§    	  	
		  	§    	  	KNOW ALL MEN BY THESE PRESENTS:
	
                        
        Section 29.COUNTY OF
                            §

 THAT Encana Oil & Gas (USA) Inc., whose address is 370 17th 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”): 
  

	 	a.	The wells and their associated wellbores described on Exhibit A (each, individually, a “Well” and collectively, the “Wells”):

  

	 	b.	The rights in and to the oil and gas leases described on the attached Exhibit B (“Leases”), insofar and only insofar as said Leases cover the lands described
on Exhibit B, as are necessary to operate, maintain, produce and plug and abandon the Wells. 

  

	 	c.	All personal property and fixtures associated with the Wells, including without limitation the following: all tubing, casing and other equipment in the wellbore,
wellhead equipment and surface production facilities. 

  

	 	d.	All hydrocarbons produced from the Wells. 

Assignor and Assignee further agree as follows: 
  

	 	1.	This Assignment is made and accepted subject to, and Assignee hereby assumes, its proportionate share of any and all royalties, overriding royalties, payments out of
production, and other burdens or encumbrances of record as of November 1, 2012 to the extent the same cover and affect the Assigned Interests, except as may be otherwise provided in the Carry and Earning Agreement. 

 

	 	2.	Assignee accepts the Assigned Interest subject to all of the express and implied covenants and obligations of the Leases, insofar as they relate to the Assigned
Interests. 

  
 Page 1 of 4

	 	3.	This Assignment is made by Assignor and accepted by Assignee without any warranty whatsoever and without warranty of title, either express or implied, and without
recourse, except that Assignor warrants title as against all parties claiming an interest in the Assigned Interests by, through or under Assignor. This Assignment is made with full substitution and subrogation of Assignee in and to all covenants and
warranties heretofore made or given by others. 

  

	 	4.	This Assignment is made in accordance with, and is subject to all the terms, provisions, and conditions of, that certain BJU Carry and Earning Agreement executed
October 31, 2012 but effective November 1 , 2012, between Assignor and Assignee (“Carry and Earning Agreement”) which is incorporated by this reference the same as though fully set out herein. However, this assignment is neither
intended as, nor shall it be deemed to accomplish, a merger of the terms and provisions directly set out herein and the terms and provisions of said Carry and Earning Agreement. Should there be any conflict between this Assignment and the Carry and
Earning Agreement, the terms and conditions set out in the Carry and Earning Agreement shall prevail. 

  

	 	5.	This Assignment is subject to that certain unrecorded Joint Operating Agreement executed October 31, 2012 but effective November 1, 2012.

  

	 	6.	The Assigned Interests do not include, and Assignor does not intend to assign and Assignee does not intend to receive, any interest in the following to the extent that
such items do not directly relate to the operation of, and production of hydrocarbons from, a Well: all lands, minerals, oil and gas leases and lands pooled therewith, units, working interests, executory interests, reversionary interests, net
profits interests, net revenue interests, term interests, royalty and overriding royalty interests, fee interests, surface interests, and any other interests of a similar nature, all contracts, agreements, licenses, and servitudes, all easements,
leases, surface use, and right-of-way agreements, all other property and equipment not directly used in connection with the operation and production of the Wells and any and all rights not expressly herein conveyed as part of the Assigned Interests.

  

	 	7.	The Assigned Interests do not include, and Assignor does not intend to assign and Assignee does not intend to receive, any overriding royalty interest owned by Assignor
in existence as of November 1, 2012, except as may be otherwise provided in the Carry and Earning Agreement. 

  

	 	8.	The Assigned Interest is hereby limited from the surface to the deepest depth drilled in each Well. 

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. 
  

			
	ENCANA OIL & GAS (USA) INC.	 	NUCOR ENERGY HOLDINGS INC.

  
 Page 2 of 4

									
					
	By:	 	 	 		 	By:	 	 
	Ricardo D. Gallegos,	 		 		 	
	 VP, Bus. Dev. – Negotiations
 & Lead Rockies & Intl. Land
	 		 		 	

 ACKNOWLEDGEMENTS 
  

	STATE OF COLORADO	§ 

	    	§ 

	CITY AND COUNTY OF DENVER	§ 

 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. 

GIVEN UNDER MY HAND AND OFFICIAL SEAL OF OFFICE on this             
day of              2012. 
  

									
	MY COMMISSION EXPIRES:	 		 	
					
	 	 	 	 		 		 	 
		 		 		 		 	Notary Public in and for the State of Colorado

	STATE OF                       
          	§ 

	    	§ 

	COUNTY OF                       
          	§ 

 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. 

GIVEN UNDER MY HAND AND OFFICIAL SEAL OF OFFICE on this             
day of              2012. 
  

									
	MY COMMISSION EXPIRES:	 		 	
					
	 	 	 	 		 		 	 
		 		 		 		 	Notary Public

 Recording Requested and when Recorded 

  
 Page 3 of 4

 Return to: 
 Nucor Corporation 
 1915 Rexford Road 

Charlotte, NC 28211 
 Attn:
Brad True 

  
 Page 4 of 4

 Exhibit D 

 

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.

 TAX PARTNERSHIP PROVISIONS 
 OF THE ENCANA-NUCOR 2012 TAX PARTNERSHIP 
 EIN: [TBD]

 Table of Contents 
  

									
	1.	 		 	 General Provisions
	  	 	2	  
		 	1.1.	 	 Designation of Documents.
	  	 	2	  
		 	1.2.	 	 Relationship of the Parties.
	  	 	2	  
		 	1.3.	 	 Priority of Provisions of this Exhibit.
	  	 	2	  
		 	1.4.	 	 Survivorship.
	  	 	2	  
	2.	 		 	 Tax Reporting Partner
	  	 	3	  
	3.	 		 	 Income Tax Compliance and Capital Accounts
	  	 	3	  
		 	3.1.	 	 Tax Returns.
	  	 	3	  
		 	3.2.	 	 Fair Market Value Capital Accounts.
	  	 	3	  
		 	3.3.	 	 Information Requests.
	  	 	3	  
		 	3.4.	 	 Best Efforts Without Liability.
	  	 	3	  
		 	3.5.	 	 Tax Matters Partner
	  	 	4	  
	4.	 		 	 Tax and FMV Capital Account Elections
	  	 	5	  
		 	4.1.	 	 General Elections.
	  	 	5	  
		 	4.2.	 	 Depletion.
	  	 	5	  
		 	4.3.	 	 Election Out Under Code §761(a).
	  	 	5	  
		 	4.4.	 	 Consent Requirements For Subsequent Tax or FMV Capital Account Elections.
	  	 	6	  
	5.	 		 	 Capital Contributions and FMV Capital Accounts
	  	 	6	  
		 	5.1.	 	 Capital Contributions.
	  	 	6	  
		 	5.2.	 	 FMV Capital Accounts.
	  	 	6	  
	6.	 		 	 Partnership Allocations
	  	 	7	  
		 	6.1.	 	 FMV Capital Account Allocations.
	  	 	7	  
		 	6.2.	 	 Tax Return and Tax Basis Capital Account Allocations.
	  	 	8	  
	7.	 		 	 Termination and Liquidating Distribution
	  	 	9	  
		 	7.1.	 	 Termination of the Tax Partnership.
	  	 	9	  
		 	7.2.	 	 Balancing of FMV Capital Accounts.
	  	 	9	  
		 	7.3.	 	 Deemed Sale Gain/Loss Charge Back.
	  	 	10	  
		 	7.4.	 	 Deficit Make-Up Obligation and Balancing Cash Contributions.
	  	 	10	  

									
		 	7.5.	 	 Distribution to Balance Capital Accounts.
	  	 	10	  
		 	7.6.	 	 FMV Determination.
	  	 	10	  
		 	7.7.	 	 Final Distribution.
	  	 	11	  
	8.	 		 	 Transfers, Indemnification, and Correspondence
	  	 	11	  
		 	8.1.	 	 Transfer of Tax Partnership Interests.
	  	 	11	  
		 	8.2.	 	 Farmouts, Distributions and Contributions to Other Partnerships.
	  	 	11	  
		 	8.3.	 	 Correspondence.
	  	 	11	  
	9.	 		 	 Elections and Changes to above Provisions
	  	 	11	  
		 	9.1.	 	 Special Tax Elections.
	  	 	12	  

  

	 	1.	General Provisions 

  

	 	1.1.	Designation of Documents. 

 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. 
  

	 	1.2.	Relationship of the Parties. 

 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. 

 

	 	1.3.	Priority of Provisions of this Exhibit. 

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.	Survivorship. 

 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. 

  
 -2-

 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. 
  

	 	2.	Tax Reporting Partner 

 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. 
  

	 	3.	Income Tax Compliance and Capital Accounts 

  

	 	3.1.	Tax Returns. 

 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. 

 

	 	3.2.	Fair Market Value Capital Accounts. 

 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. 
  

	 	3.3.	Information Requests. 

 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). 

 

	 	3.4.	Best Efforts Without Liability. 

  
 -3-

 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. 
  

	 	3.5.	Tax Matters Partner 

 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. 

  
 -4-

 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. 
  

	 	4.	Tax and FMV Capital Account Elections 

  

	 	4.1.	General Elections. 

 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; 
 4.1.3. the accrual method of accounting;

 4.1.4. to report income on a calendar year basis; 
 and the Tax Partnership shall also make any elections as specially noted in Sec. 9.1, below. 
  

	 	4.2.	Depletion. 

 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.	Election Out Under Code §761(a). 

 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. 

  
 -5-

 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). 
  

	 	4.4.	Consent Requirements For Subsequent Tax or FMV Capital Account Elections. 

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

 

	 	5.	Capital Contributions and FMV Capital Accounts 

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. 
  

	 	5.1.	Capital Contributions. 

 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. 

 

	 	5.2.	FMV Capital Accounts. 

 The FMV capital
accounts shall be increased and decreased as follows: 
 5.2.1. The FMV capital account of a Party shall be
increased by: 
 (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 

  
 -6-

 (iii) that Party’s share of any Code §705(a)(1)(B) item.

 5.2.2. The FMV capital account of a Party shall be decreased by: 

(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, 
 (iii) that Party’s share of any Code §705(a)(2)(B) item.

 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. 
  

	 	6.	Partnership Allocations 

  

	 	6.1.	FMV Capital Account Allocations. 

 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. 

  
 -7-

 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.	Tax Return and Tax Basis Capital Account Allocations. 

 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. 

  
 -8-

 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). 

6.2.8. Take-in-kind. 
 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. 
  

	 	7.	Termination and Liquidating Distribution 

  

	 	7.1.	Termination of the Tax Partnership. 

 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. 
  

	 	7.2.	Balancing of FMV Capital Accounts. 

Second, the FMV capital accounts of the Parties shall be determined as described hereafter. The TRP shall take the actions specified under Secs. 7.2
through 7.5 in order to cause the Parties’ FMV capital accounts to reflect, to the maximum extent possible, their interests under the 

  
 -9-

 
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.” 
  

	 	7.3.	Deemed Sale Gain/Loss Charge Back. 

 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. 

 

	 	7.4.	Deficit Make-Up Obligation and Balancing Cash Contributions. 

 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.	Distribution to Balance Capital Accounts. 

 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. 
  

	 	7.6.	FMV Determination. 

 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. 

  
 -10-

	 	7.7.	Final Distribution. 

 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. 
  

	 	8.	Transfers, Indemnification, and Correspondence 

  

	 	8.1.	Transfer of Tax Partnership Interests. 

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. 
  

	 	8.2.	Farmouts, Distributions and Contributions to Other Partnerships. 

 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. 
  

	 	8.3.	Correspondence. 

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

(Attach separate list, if necessary) 
  

			
	 TRP
	 	“Att to:” reference
	 Encana Oil & Gas (USA) Inc.
 370 17th Street, Suite 1700

Denver, CO 80202
	 	Tax Department

  

			
	 Nucor Energy Holdings Inc.

1915 Rexford Road

Charlotte, NC 28211
	 	Tax Department

  

	 	9.	Elections and Changes to above Provisions 

  
 -11-

	 	9.1.	Special Tax Elections. 

With respect to Sec. 4.1, the Parties agree (if not agreed, insert “No”): 

 

					
	a) that the Tax Partnership shall elect to account for dispositions of depreciable assets under the general asset method to the
extent permitted by Code §168(i)(4);	  	 	No	  
	b) that the Tax Partnership shall elect under Code §754
to adjust the basis of Tax Partnership property, with the adjustments provided in Code §734 for a distribution of property and in Code §743 for a transfer of a partnership interest. In case of distribution of property the TRP shall adjust
all tax basis capital accounts. In the case of a transfer of a partnership interest the acquiring party(ies) shall establish and maintain its (their) tax basis capital account(s);	  	 	Yes	  
	c) that the Tax Partnership shall elect under Code
§6231 to be subject to the TEFRA rules;	  	 	No	  
	d) that the Tax Partnership shall elect under Code §709
to amortize over the shortest permissible period all deferred organizational expenses;	  	 	Yes	  
	e) that the Tax Partnership shall elect under Code §195
to amortize over the shortest permissible period all deferred business start-up expenses;	  	 	Yes	  

  

					
	f) with respect to Sec. 4.2, Depletion, the Parties agree that the Tax Partnership shall use simulated percentage depletion
instead of simulated cost depletion;	  	 	No	  
	g) with respect to Sec.5.2.4, under the rules of Treas. Reg.
§ 1.704-1(b)(2)(iv)(f) the Parties agree that the FMV capital accounts shall be revalued to reflect value changes of the Tax Partnership property upon the occurrence of the events specified in (5)(i) through (iii) of said
-1(b)(2)(iv)(f) regulations;	  	 	Yes	  
	h) with respect to Sec. 6.2.8, the income attributable to
take-in-kind production will be reflected on the tax return.	  	 	No	  

 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. 

  
 -12-

 EXHIBIT E 
 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. 
 A.A.P.L. FORM 610—1989 
 MODEL FORM OPERATING AGREEMENT 
 OPERATING AGREEMENT 

DATED EFFECTIVE 
 November 1, 2012 
  

			
	 OPERATOR        
	  	Encana Oil & Gas (USA) Inc.

  

			
	 CONTRACT AREA        
	  	All Carry Wells and/or Head’s Up Wells drilled pursuant to the BJU Carry and Earning Agreement between Encana Oil & Gas (USA)
Inc. and Nucor Energy Holdings Inc. executed October 31, 2012 but effective November 1, 2012.

 29.1 
  

 
 COUNTY OR PARISH OF
    Garfield and Rio Blanco                 , STATE OF
    Colorado             
  

 
  

			
		  	COPYRIGHT 1989 – ALL RIGHTS RESERVED
AMERICAN ASSOCIATION OF PETROLEUM
LANDMEN, 4100 FOSSIL CREEK 
BLVD.
FORT WORTH, TEXAS, 76137, APPROVED FORM.  

A.A.P.L. NO. 610 – 1989

 A.A.P.L. FORM 610 - MODEL FORM OPERATING AGREEMENT - 1989 

 

 TABLE OF CONTENTS 

 

									
	 Article
	 	 Title
	  	Page	 
			
	I.	 	DEFINITIONS	  	 	1	  
	II.	 	EXHIBITS	  	 	2	  
	III.	 	INTERESTS OF PARTIES	  	 	3	  
		 	A.	 	 OIL AND GAS INTERESTS:
	  	 	3	  
		 	B.	 	 INTERESTS OF PARTIES IN COSTS AND PRODUCTION:
	  	 	3	  
		 	C.	 	 SUBSEQUENTLY CREATED INTERESTS:
	  	 	3	  
	IV.	 	TITLES	  	 	3	  
		 	A.	 	 TITLE EXAMINATION:
	  	 	3	  
		 	B.	 	 LOSS OR FAILURE OF TITLE:
	  	 	4	  
		 		 	 1. Failure of Title
	  	 	4	  
		 		 	 2. Loss by Non-Payment or Erroneous Payment of Amount Due
	  	 	5	  
		 		 	 3. Other Losses
	  	 	5	  
		 		 	 4. Curing Title
	  	 	5	  
	V.	 	OPERATOR	  	 	5	  
		 	A.	 	 DESIGNATION AND RESPONSIBILITIES OF OPERATOR:
	  	 	5	  
		 	B.	 	 RESIGNATION OR REMOVAL OF OPERATOR AND SELECTION OF SUCCESSOR:
	  	 	5	  
		 		 	 1. Resignation or Removal of Operator
	  	 	6	  
		 		 	 2. Selection of Successor Operator
	  	 	6	  
		 		 	 3. Effect of Bankruptcy
	  	 	6	  
		 	C.	 	 EMPLOYEES AND CONTRACTORS:
	  	 	6	  
		 	D.	 	 RIGHTS AND DUTIES OF OPERATOR:
	  	 	6	  
		 		 	 1. Competitive Rates and Use of Affiliates
	  	 	6	  
		 		 	 2. Discharge of Joint Account Obligations
	  	 	7	  
		 		 	 3. Protection from Liens
	  	 	7	  
		 		 	 4. Custody of Funds
	  	 	7	  
		 		 	 5. Access to Contract Area and Records
	  	 	7	  
		 		 	 6. Filing and Furnishing Governmental Reports
	  	 	7	  
		 		 	 7. Drilling and Testing Operations
	  	 	7	  
		 		 	 8. Cost Estimates
	  	 	7	  
		 		 	 9. Insurance
	  	 	7	  
	VI.	 	DRILLING AND DEVELOPMENT	  	 	8	  
		 	A.	 	 INITIAL WELL:
	  	 	8	  
		 	B.	 	 SUBSEQUENT OPERATIONS:
	  	 	8	  
		 		 	 1. Proposed Operations
	  	 	8	  
		 		 	 2. Operations by Less Than All Parties
	  	 	8	  
		 		 	 3. Stand-By Costs
	  	 	11	  
		 		 	 4. Deepening
	  	 	11	  
		 		 	 5. Sidetracking
	  	 	12	  
		 		 	 6. Order of Preference of Operations
	  	 	12	  
		 		 	 7. Conformity to Spacing Pattern
	  	 	12	  
		 		 	 8. Paying Wells
	  	 	12	  
		 	C.	 	 COMPLETION OF WELLS; REWORKING AND PLUGGING BACK:
	  	 	12	  
		 		 	 1. Completion
	  	 	12	  
		 		 	 2. Rework, Recomplete or Plug Back
	  	 	13	  
		 	D.	 	 OTHER OPERATIONS:
	  	 	13	  
		 	E.	 	 ABANDONMENT OF WELLS:
	  	 	13	  
		 		 	 1. Abandonment of Dry Holes
	  	 	13	  
		 		 	 2. Abandonment of Wells That Have Produced
	  	 	14	  
		 		 	 3. Abandonment of Non-Consent Operations
	  	 	14	  
		 	F.	 	 TERMINATION OF OPERATIONS:
	  	 	15	  
		 	G.	 	 TAKING PRODUCTION IN KIND:
	  	 	15	  
		 		 	 (Option 1) Gas Balancing Agreement
	  	 	15	  
		 		 	 (Option 2) No Gas Balancing Agreement
	  	 	15	  
	VII.	 	EXPENDITURES AND LIABILITY OF PARTIES	  	 	16	  
		 	A.	 	 LIABILITY OF PARTIES:
	  	 	16	  
		 	B.	 	 LIENS AND SECURITY INTERESTS:
	  	 	16	  
		 	C.	 	 ADVANCES:
	  	 	17	  
		 	D.	 	 DEFAULTS AND REMEDIES:
	  	 	18	  
		 		 	 1. Suspension of Rights
	  	 	18	  
		 		 	 2. Suit for Damages
	  	 	18	  
		 		 	 3. Deemed Non-Consent
	  	 	18	  
		 		 	 4. Advance Payment
	  	 	18	  
		 		 	 5. Costs and Attorneys’ Fees
	  	 	19	  
		 	E.	 	 RENTALS, SHUT-IN WELL PAYMENTS AND MINIMUM ROYALTIES:
	  	 	19	  
		 	F.	 	 TAXES:
	  	 	19	  
	VIII.	 	ACQUISITION, MAINTENANCE OR TRANSFER OF INTEREST	  	 	19	  
		 	A.	 	 SURRENDER OF LEASES:
	  	 	19	  
		 	B.	 	 RENEWAL OR EXTENSION OF LEASES:
	  	 	20	  
		 	C.	 	 ACREAGE OR CASH CONTRIBUTIONS:
	  	 	20	  

  
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 A.A.P.L. FORM 610 - MODEL FORM OPERATING AGREEMENT - 1989 

 

 TABLE OF CONTENTS 

 

									
		 	D.	 	 ASSIGNMENT; MAINTENANCE OF UNIFORM INTEREST:
	  	 	20	  
		 	E.	 	 WAIVER OF RIGHTS TO PARTITION:
	  	 	21	  
		 	F.	 	 PREFERENTIAL RIGHT TO PURCHASE
	  	 	21	  
	IX.	 	INTERNAL REVENUE CODE ELECTION	  	 	21	  
	X.	 	CLAIMS AND LAWSUITS	  	 	22	  
	XI.	 	FORCE MAJEURE	  	 	22	  
	XII.	 	NOTICES	  	 	22	  
	XIII.	 	TERM OF AGREEMENT	  	 	22	  
	XIV.	 	COMPLIANCE WITH LAWS AND REGULATIONS	  	 	23	  
		 	A.	 	 LAWS, REGULATIONS AND ORDERS:
	  	 	23	  
		 	B.	 	 GOVERNING LAW:
	  	 	23	  
		 	C.	 	 REGULATORY AGENCIES:
	  	 	23	  
	XV.	 	MISCELLANEOUS	  	 	23	  
		 	A.	 	 EXECUTION:
	  	 	23	  
		 	B.	 	 SUCCESSORS AND ASSIGNS:
	  	 	24	  
		 	C.	 	 COUNTERPARTS:
	  	 	24	  
		 	D.	 	 SEVERABILITY
	  	 	24	  
	XVI.	 	OTHER PROVISIONS	  	 	24	  

  
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 A.A.P.L. FORM 610 - MODEL FORM OPERATING AGREEMENT - 1989 

 

 OPERATING AGREEMENT 

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.” 

WITNESSETH: 
 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. 

NOW, THEREFORE, it is agreed as follows: 
 ARTICLE I. 
 DEFINITIONS 

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. 

  
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 A.A.P.L. FORM 610 - MODEL FORM OPERATING AGREEMENT - 1989 

 

 ARTICLE II. 

EXHIBITS 

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

 

	    X      A.	Exhibit “A” shall include the following information: 

	    	(1) Description of Carry Wells and/or Head’s Up Wells subject to this agreement, 

	    	(2) Restrictions, if any, as to depths, formations, previously existing wells, or substances, 

	    	(3) Percentages or fractional interests of parties to this agreement 

	    	(4) Leases, lands and agreements subject to this agreement, , 

	    	(5) Parties to agreement with addresses and telephone numbers for notice purposes, 

	    	(6) Burdens on production. 

	            B.	Exhibit “B,” Form of Lease. 

	    X      C.	Exhibit “C,” Accounting Procedure. 

	    X      D.	Exhibit “D,” Insurance. 

	    X      E.	Exhibit “E,” Gas Balancing Agreement. 

	    X      F.	Exhibit “F,” Non-Discrimination and Certification of Non-Segregated Facilities. 

	    X      G.	Exhibit “G,” Tax Partnership. 

	    X      H.	Exhibit “H” Nucor Well Information Requirements. 

	    X      I.	Exhibit “I” Recording Supplement. 

  

  
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 A.A.P.L. FORM 610 - MODEL FORM OPERATING AGREEMENT - 1989 

 

 ARTICLE III. 

INTERESTS OF PARTIES 

A. Oil and Gas Interests: 

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%. 
 B. Interests of Parties in Costs and Production: 

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. 

C. Subsequently Created Interests: 
 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. 
 ARTICLE IV. 

TITLES 
 A. Title
Examination: 

  
 3 

 A.A.P.L. FORM 610 - MODEL FORM OPERATING AGREEMENT - 1989 

 

 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. 
 B. Loss or Failure of Title: 
 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 

  
 4 

 A.A.P.L. FORM 610 - MODEL FORM OPERATING AGREEMENT - 1989 

 

 (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. 
 ARTICLE V. 
 OPERATOR 
 A. Designation and Responsibilities of Operator: 

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. 
 B. Resignation or Removal of Operator and Selection of Successor: 

  
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 A.A.P.L. FORM 610 - MODEL FORM OPERATING AGREEMENT - 1989 

 

 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. 
 C. Employees and Contractors: 

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. 
 D. Rights and Duties 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. 

  
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 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. 

  
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 ARTICLE VI. 

DRILLING AND DEVELOPMENT 

A. Initial Well: 
 On or before the              day of
                      
  ,             , Operator shall commence the drilling of the Initial Well at the following
location: 
 NOT APPLICABLE. 
 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. 
 B.
Subsequent Operations: 
 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. 
  

	 	2.	Operations by Less Than All Parties: 

 (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,

  
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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 

  
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 (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 

  
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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. 

  
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 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.” 
 * excluding Carry Wells 

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. 

C. Completion of Wells; Reworking and Plugging Back: 
 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*, 
 Deepening or Sidetracking shall include: 

 

	 	þ	Option No. 1: All necessary expenditures for the drilling, Deepening or Sidetracking, testing, Completing and equipping of the well,
including necessary tankage and/or surface facilities. 

  

	 	 ̈	 Option No. 2: All necessary expenditures for the drilling, Deepening or Sidetracking and testing of the well. When such well has reached
its authorized depth, and all logs, cores and other tests have been completed, and the results thereof furnished to the parties, Operator shall give immediate notice to the Non-Operators having the right to participate in a Completion attempt
whether or not Operator recommends attempting to Complete the well, together with Operator’s AFE for Completion costs if not previously provided. The parties receiving such notice shall have forty-eight (48) hours (exclusive of Saturday,
Sunday and legal holidays) in which to elect by delivery of notice to Operator to participate in a recommended Completion attempt or to make a Completion proposal with an accompanying AFE. Operator shall deliver any such Completion proposal, or any
Completion proposal conflicting 

  
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with Operator’s proposal, to the other parties entitled to participate in such Completion in accordance with the procedures specified in Article VI.B.6. Election to participate in a
Completion attempt shall include consent to all necessary expenditures for the Completing and equipping of such well, including necessary tankage and/or surface facilities but excluding any stimulation operation not contained on the Completion AFE.
Failure of any party receiving such notice to reply within the period above fixed shall constitute an election by that party not to participate in the cost of the Completion attempt; provided, that Article VI.B.6. shall
control in the case of conflicting Completion proposals. If one or more, but less than all of the parties, elect to attempt a Completion, the provision of Article VI.B.2. hereof (the phrase “Reworking, Sidetracking, Deepening, Recompleting or
Plugging Back” as contained in Article VI.B.2. shall be deemed to include “Completing”) shall apply to the operations thereafter conducted by less than all parties; provided, however, that Article VI.B.2. shall apply separately to
each separate Completion or Recompletion attempt undertaken hereunder, and an election to become a Non-Consenting Party as to one Completion or Recompletion attempt shall not prevent a party from becoming a Consenting Party in subsequent Completion
or Recompletion attempts regardless whether the Consenting Parties as to earlier Completions or Recompletion have recouped their costs pursuant to Article VI.B.2.; provided further, that any recoupment of costs by a Consenting Party shall be made
solely from the production attributable to the Zone in which the Completion attempt is made. Election by a previous Non-Consenting party to participate in a subsequent Completion or Recompletion attempt shall require such party to pay its
proportionate share of the cost of salvable materials and equipment installed in the well pursuant to the previous Completion or Recompletion attempt, insofar and only insofar as such materials and equipment benefit the Zone in which such party
participates in a Completion attempt. 

 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. 

D. Other Operations: 

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. 
 E. Abandonment of Wells: 
 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 

  
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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). 

  
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 F. Termination of Operations: 

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. 
 G. Taking Production in Kind:

 þ Option No. 1: Gas Balancing Agreement Attached

 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. 
  

	 ̈	Option No. 2: No Gas Balancing 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. 

  
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 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 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. 
 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. 
 ARTICLE VII. 
 EXPENDITURES AND LIABILITY OF PARTIES 

A. Liability of Parties: 

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. 
 B. Liens and Security Interests: 
 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. 

  
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 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. 
 C. Advances: 

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 

  
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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. 
 D. Defaults and Remedies: 
 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. 

  
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 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. 
 E. Rentals, Shut-in Well Payments and Minimum Royalties: 

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. 
 F. Taxes: 
 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. 

ARTICLE VIII. 
 ACQUISITION, MAINTENANCE OR TRANSFER OF INTEREST 
 A. Surrender of
Leases: 
 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.” 

  
 19 

 A.A.P.L. FORM 610 - MODEL FORM OPERATING AGREEMENT - 1989 

 

 
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. 
 B. Renewal or Extension of Leases: 
 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. 

C. Acreage or Cash Contributions: 
  

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. 

D. Assignment; Maintenance of Uniform Interest: 

  
 20 

 A.A.P.L. FORM 610 - MODEL FORM OPERATING AGREEMENT - 1989 

 

 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. 
 E. Waiver of Rights to Partition: 
 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. 
 Preferential Right to Purchase: NOT APPLICABLE

 ARTICLE IX. 
 INTERNAL REVENUE CODE ELECTION 
 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. 

  
 21 

 A.A.P.L. FORM 610 - MODEL FORM OPERATING AGREEMENT - 1989 

 

 ARTICLE X. 
 CLAIMS AND LAWSUITS 
 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.

 ARTICLE XI. 
 FORCE MAJEURE 
 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). 

ARTICLE XII. 
 NOTICES 
 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. 

ARTICLE XIII. 
 TERM OF AGREEMENT 
 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. 
  

	    	Option No. 1: So long as any of the lands and associated Oil and Gas Leases and Oil and Gas Interests subject to this agreement remain or are continued in
force as to any part of the Contract Area, whether by production, extension, renewal or otherwise. 

  
 22 

 A.A.P.L. FORM 610 - MODEL FORM OPERATING AGREEMENT - 1989 

 

	 ̈	Option No. 2: In the event the well described in Article VI.A., or any subsequent well drilled under any
provision of this agreement, results in the Completion of a well as a well capable of production of Oil and/or Gas in paying quantities, this agreement shall continue in force so long as any such well is capable of production, and for an additional
period of              days thereafter; provided, however, if, prior to the expiration of such additional period, one or more of the parties hereto are engaged in
drilling, Reworking, Deepening, Sidetracking, Plugging Back, testing or attempting to Complete or Re-complete a well or wells hereunder, this agreement shall continue in force until such operations have been completed and if production results
therefrom, this agreement shall continue in force as provided herein. In the event the well described in Article VI.A., or any subsequent well drilled hereunder, results in a dry hole, and no other well is capable of producing Oil and/or Gas from
the Contract Area, this agreement shall terminate unless drilling, Deepening, Sidetracking, Completing, Re- completing, Plugging Back or Reworking operations are commenced within
             days from the date of abandonment of said well. “Abandonment” for such purposes shall mean either (i) a decision by all parties not to
conduct any further operations on the well or (ii) the elapse of 180 days from the conduct of any operations on the well, whichever first occurs. 

 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. 
 ARTICLE XIV. 

COMPLIANCE WITH LAWS AND REGULATIONS 
 A. Laws, Regulations and Orders: 
 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. 
 B. Governing Law: 
 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. 
 C. Regulatory Agencies: 
 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. 

ARTICLE XV. 

MISCELLANEOUS 
 A.
Execution: 
 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. 

  
 23 

 A.A.P.L. FORM 610 - MODEL FORM OPERATING AGREEMENT - 1989 

 

 B. Successors and Assigns: 

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

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. 

ARTICLE XVI. 
 OTHER PROVISIONS 
 SEE PAGES 20-22 FOR OTHER PROVISIONS. 

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

 

									
	ATTEST OR WITNESS:	 		 	 ENCANA OIL & GAS (USA) INC.
 OPERATOR

				
	 	 		 	By	 	 
		 		 		 		 	Ricardo D. Gallegos
	 	 	 	 		 		 	VP, Bus. Dev. – Negotiations
		 		 		 		 	& Lead Rockies & Intl. Land
					
		 		 		 	Date	 	 

  

									
	ATTEST OR WITNESS:	 		 	 NUCOR ENERGY HOLDINGS INC.
 NON-OPERATOR

				
	 	 		 	By	 	 
		 		 		 		 	Joseph Strateman
	 	 	 	 		 		 	President
					
		 		 		 	Date	 	 

  
 Acknowledgment in representative capacity:

 State of Colorado                     )

                         
                       ) ss. 

  
 24 

 A.A.P.L. FORM 610 - MODEL FORM OPERATING AGREEMENT - 1989 

 

 City and County of Denver ) 
 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. 
  

							
				
	(Seal, if any)	 		 		 	 
		 		 		 	Notary Public
		 		 		 	My commission expires:                        
                                   

 Acknowledgment in representative capacity: 
 State of
                                   ) 

                         
                       ) ss. 

County of
                                ) 

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

 

							
				
	(Seal, if any)	 		 		 	 
		 		 		 	Notary Public
		 		 		 	My commission expires:                        
                                   

  
 25 

 EXHIBIT A 
 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. 
  

	I.	 	DESCRIPTION OF LANDS SUBJECT TO THIS AGREEMENT 

 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. 

 

	II.	 	RESTRICTIONS AS TO DEPTHS, FORMATIONS, PREVIOUSLY EXISTING WELLS AND SUBSTANCES 

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. 
  

	III.	 	PARTIES TO THE AGREEMENT AND PERCENTAGE PARTICIPATION 

 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: 
  

											
	 	  	Cost Share	 	WI Share
	 Encana Oil & Gas (USA) Inc.
	  	 	 	[	***]%	 	 	 	50.00	%
	 370 17th Street, Suite 1700
	  	 				 	 			
	 Denver, Colorado 80202
	  	 				 	 			
			
	 Nucor Energy Holdings Inc.
	  	 	 	[	***]%	 	 	 	50.00	%
	 1915 Rexford Road
	  	 				 	 			
	 Charlotte, NC 28211
	  	 				 	 			

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

 

											
	 	  	Cost Share	 	WI Share
	 Encana Oil & Gas (USA) Inc.
	  	 	 	50.00	%	 	 	 	50.00	%
	 370 17th Street, Suite 1700
	  	 				 	 			
	 Denver, Colorado 80202
	  	 				 	 			
			
	 Nucor Energy Holdings Inc.
	  	 	 	50.00	%	 	 	 	50.00	%
	 1915 Rexford Road
	  	 				 	 			
	 Charlotte, NC 28211
	  	 				 	 			

 [***] 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: 

 

											
	 	  	Cost Share	 	WI Share
	 Encana Oil & Gas (USA) Inc.
	  	 	 	50.00	%	 	 	 	50.00	%
	 370 17th Street, Suite 1700
	  	 				 	 			
	 Denver, Colorado 80202
	  	 				 	 			
			
	 Nucor Energy Holdings Inc.
	  	 	 	50.00	%	 	 	 	50.00	%
	 1915 Rexford Road
	  	 				 	 			
	 Charlotte, NC 28211
	  	 				 	 			

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

											
	 	  	Cost Share	 	WI Share
	 Encana Oil & Gas (USA) Inc.
	  	 	 	50.00	%	 	 	 	50.00	%
	 370 17th Street, Suite 1700
	  	 				 	 			
	 Denver, Colorado 80202
	  	 				 	 			
			
	 Nucor Energy Holdings Inc.
	  	 	 	50.00	%	 	 	 	50.00	%
	 1915 Rexford Road
	  	 				 	 			
	 Charlotte, NC 28211
	  	 				 	 			

 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: 

 

											
	 	  	Cost Share	 	WI Share
	 Encana Oil & Gas (USA) Inc.
	  	 	 	100.00	%	 	 	 	100.00	%
	 370 17th Street, Suite 1700
	  	 				 	 			
	 Denver, Colorado 80202
	  	 				 	 			
			
	 Nucor Energy Holdings Inc.
	  	 	 	0.00	%	 	 	 	0.00	%
	 1915 Rexford Road
	  	 				 	 			
	 Charlotte, NC 28211
	  	 				 	 			

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

											
	 	  	Cost Share	 	WI Share
	 Encana Oil & Gas (USA) Inc.
	  	 	 	100.00	%	 	 	 	100.00	%
	 370 17th Street, Suite 1700
	  	 				 	 			
	 Denver, Colorado 80202
	  	 				 	 			
			
	 Nucor Energy Holdings Inc.
	  	 	 	0.00	%	 	 	 	0.00	%
	 1915 Rexford Road
	  	 				 	 			
	 Charlotte, NC 28211
	  	 				 	 			

  
 2 

 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: 

 

											
	 	  	Cost Share	 	WI Share
	 Nucor Energy Holdings Inc.
	  	 	 	100.00	%	 	 	 	97.5	%
	 1915 Rexford Road
	  	 				 	 			
	 Charlotte, NC 28211
	  	 				 	 			
			
	 Encana Oil & Gas (USA) Inc.
	  	 	 	0.00	%	 	 	 	2.5	%
	 370 17th Street, Suite 1700
	  	 				 	 			
	 Denver, Colorado 80202
	  	 				 	 			

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

											
	 	  	Cost Share	 	WI Share
	 Nucor Energy Holdings Inc.
	  	 	 	97.5	%	 	 	 	97.5	%
	 1915 Rexford Road
	  	 				 	 			
	 Charlotte, NC 28211
	  	 				 	 			
			
	 Encana Oil & Gas (USA) Inc.
	  	 	 	2.5	%	 	 	 	2.5	%
	 370 17th Street, Suite 1700
	  	 				 	 			
	 Denver, Colorado 80202
	  	 				 	 			

  

	IV.	 	LEASES, LANDS AND AGREEMENTS SUBJECT TO THIS AGREEMENT 

 See I. above 
  

	V.	 	NOTICE ADDRESSES FOR THE PARTIES 

 Encana Oil & Gas (USA) Inc. 
 370 17th Street, Suite 1700 

Denver, Colorado 80202 
 Phone: 303-623-2300 
 Fax: 303-623-2400 

Attention: Team Lead Land, South Rockies Business Unit 
 Nucor Energy Holdings Inc. 
 1915 Rexford Road 

Charlotte, NC 28211 
 Phone: 704-365-1921 
 Fax: 704-362-4208 

Attention: Chief Financial Officer 

  
 3 

 EXHIBIT B 
 (Lease Form) 
 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. 
 There is no Exhibit B to this Agreement. 

			
	

	  	 COPAS 2005 Accounting Procedure
 Recommended by COPAS, Inc.

 EXHIBIT C 
 ACCOUNTING PROCEDURE 
 JOINT OPERATIONS 

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.. 
 I. GENERAL PROVISIONS 

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. 
  

	1.	 	DEFINITIONS 

 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: 

 

	 	•	 	 Responsibility for field employees and contract labor engaged in activities that can include field operations, maintenance, construction, well remedial
work, equipment movement and drilling 

  

	 	•	 	 Responsibility for day-to-day direct oversight of rig operations 

 

	 	•	 	 Responsibility for day-to-day direct oversight of construction operations 

 

	 	•	 	 Coordination of job priorities and approval of work procedures 

 

	 	•	 	 Responsibility for optimal resource utilization (equipment, Materials, personnel) 

 

	 	•	 	 Responsibility for meeting production and field operating expense targets 

 

	 	•	 	 Representation of the Parties in local matters involving community, vendors, regulatory agents and landowners, as an incidental part of the
supervisor’s operating responsibilities 

  

	 	•	 	 Responsibility for all emergency responses with field staff 

 

	 	•	 	 Responsibility for implementing safety and environmental practices 

 

	 	•	 	 Responsibility for field adherence to company policy 

  

	 	•	 	 Responsibility for employment decisions and performance appraisals for field personnel 

 

	 	•	 	 Oversight of sub-groups for field functions such as electrical, safety, environmental, telecommunications, which may have group or team leaders.

 “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. 

  
 COPYRIGHT © 2005 by
COPAS, Inc. 

  
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	  	 COPAS 2005 Accounting Procedure
 Recommended by COPAS, Inc.

  

 “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. 
  

	2.	 	STATEMENTS AND BILLINGS 

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. 

  
 COPYRIGHT © 2005 by
COPAS, Inc. 

  
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	  	 COPAS 2005 Accounting Procedure
 Recommended by COPAS, Inc.

  

	3.	 	ADVANCES AND PAYMENTS BY THE PARTIES 

  

	 	A.	Unless otherwise provided for in the Agreement, the Operator may require the Non-Operators to advance their share of the estimated cash outlay for the succeeding
month’s operations within fifteen (15) days after receipt of the advance request. The Operator shall adjust each monthly billing to reflect advances received from the Non-Operators for such month. If a refund is due, the Operator shall
apply the amount to be refunded to the subsequent month’s billing or advance, unless the Non-Operator sends the Operator a written request for a cash refund. The Operator shall remit the refund to the Non-Operator within fifteen (15) days
of receipt of such written request. 

  

	 	B.	Except as provided below, each Party shall pay its proportionate share of all bills in full within fifteen (15) days of receipt date. If payment is not made or a
credit is not applied within such time, the unpaid balance shall bear interest compounded monthly at the prime rate published by the Wall Street Journal on the first day of each month the payment is delinquent, plus three percent (3%), per
annum, or the maximum contract rate permitted by the applicable usury Laws governing the Joint Property, whichever is the lesser, plus attorney’s fees, court costs, and other costs in connection with the collection of unpaid amounts. If the
Wall Street Journal ceases to be published or discontinues publishing a prime rate, the unpaid balance shall bear interest compounded monthly at the prime rate published by the Federal Reserve plus three percent (3%), per annum. Interest
shall begin accruing on the first day of the month in which the payment was due. Payment shall not be reduced or delayed as a result of inquiries or anticipated credits unless the Operator has agreed. Notwithstanding the foregoing, the Non-Operator
may reduce payment, provided it furnishes documentation and explanation to the Operator at the time payment is made, to the extent such reduction is caused by: 

 

	 	(1)	being billed at an incorrect working interest or Participating Interest that is higher than such Non-Operator’s actual working interest or Participating Interest,
as applicable; or 

  

	 	(2)	being billed for a project or AFE requiring approval of the Parties under the Agreement that the Non-Operator has not approved or is not otherwise obligated to pay
under the Agreement; or 

  

	 	(3)	being billed for a property in which the Non-Operator no longer owns a working interest, provided the Non-Operator has furnished the Operator a copy of the recorded
assignment or letter in-lieu. Notwithstanding the foregoing, the Non-Operator shall remain responsible for paying bills attributable to the interest it sold or transferred for any bills rendered during the thirty (30) day period following the
Operator’s receipt of such written notice; or 

  

	 	(4)	charges outside the adjustment period, as provided in Section I.4 (Adjustments). 

 

	4.	 	ADJUSTMENTS 

  

	 	A.	Payment of any such bills shall not prejudice the right of any Party to protest or question the correctness thereof; however, all bills and statements, including payout
statements, rendered during any calendar year shall conclusively be presumed to be true and correct, with respect only to expenditures, after twenty-four (24) months following the end of any such calendar year, unless within said period a Party
takes specific detailed written exception thereto making a claim for adjustment. The Operator shall provide a response to all written exceptions, whether or not contained in an audit report, within the time periods prescribed in Section I.5
(Expenditure Audits). 

  

	 	B.	All adjustments initiated by the Operator, except those described in items (1) through (4) of this Section I.4.B, are limited to the twenty-four
(24) month period following the end of the calendar year in which the original charge appeared or should have appeared on the Operator’s Joint Account statement or payout statement. Adjustments that may be made beyond the twenty-four
(24) month period are limited to adjustments resulting from the following: 

  

	 	(1)	a physical inventory of Controllable Material as provided for in Section V (Inventories of Controllable Material), or 

 

	 	(2)	an offsetting entry (whether in whole or in part) that is the direct result of a specific joint interest audit exception granted by the Operator relating to another
property, or 

  

	 	(3)	a government/regulatory audit, or 

  

	 	(4)	a working interest ownership or Participating Interest adjustment. 

  

	5.	 	EXPENDITURE AUDITS 

  

	 	A.	A Non-Operator, upon written notice to the Operator and all other Non-Operators, shall have the right to audit the Operator’s accounts and records relating to the
Joint Account or the Carry and Earning Agreement within the twenty-four (24) month period following the end of such calendar year in which such bill was rendered; however, conducting an audit shall not extend the time for the taking of written
exception to and the adjustment of accounts as provided for in Section I.4 (Adjustments). Any Party that is subject to payout accounting under the Agreement shall have the right to audit the accounts and records of the Party responsible for
preparing the payout statements, or of the Party furnishing information to the Party responsible for preparing payout statements. Audits of payout accounts may include the volumes of hydrocarbons produced and saved and proceeds received for such
hydrocarbons as they pertain to payout accounting required under the Agreement. Unless otherwise provided in the Agreement, audits of a payout account shall be conducted within the twenty-four (24) month period following the end of the calendar
year in which the payout statement was rendered. 

 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. 

  
 COPYRIGHT © 2005 by
COPAS, Inc. 

  
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	  	 COPAS 2005 Accounting Procedure
 Recommended by COPAS, Inc.

  

 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. 
  

	 	B.	The Operator shall provide a written response to all exceptions in an audit report within one hundred eighty (180) days after Operator receives such report. Denied
exceptions should be accompanied by a substantive response. If the Operator fails to provide substantive response to an exception within this one hundred eighty (180) day period, the Operator will owe interest on that exception or portion
thereof, if ultimately granted, from the date it received the audit report. Interest shall be calculated using the rate set forth in Section I.3.B (Advances and Payments by the Parties). 

 

	 	C.	The lead audit company shall reply to the Operator’s response to an audit report within ninety (90) days of receipt, and the Operator shall reply to the lead
audit company’s follow-up response within ninety (90) days of receipt; provided, however, each Non-Operator shall have the right to represent itself if it disagrees with the lead audit company’s position or believes the lead audit
company is not adequately fulfilling its duties. Unless otherwise provided for in Section I.5.E, if the Operator fails to provide substantive response to an exception within this ninety (90) day period, the Operator will owe interest on that
exception or portion thereof, if ultimately granted, from the date it received the audit report. Interest shall be calculated using the rate set forth in Section I.3.B (Advances and Payments by the Parties). 

 

	 	D.	If any Party fails to meet the deadlines in Sections I.5.B or I.5.C or if any audit issues are outstanding fifteen (15) months after Operator receives the audit
report, the Operator or any Non-Operator participating in the audit has the right to call a resolution meeting, as set forth in this Section I.5.D or it may invoke the dispute resolution procedures included in the Agreement, if applicable. The
meeting will require one month’s written notice to the Operator and all Non-Operators participating in the audit. The meeting shall be held at the Operator’s office or mutually agreed location, and shall be attended by representatives of
the Parties with authority to resolve such outstanding issues. Any Party who fails to attend the resolution meeting shall be bound by any resolution reached at the meeting. The lead audit company will make good faith efforts to coordinate the
response and positions of the Non-Operator participants throughout the resolution process; however, each Non-Operator shall have the right to represent itself. Attendees will make good faith efforts to resolve outstanding issues, and each Party will
be required to present substantive information supporting its position. A resolution meeting may be held as often as agreed to by the Parties. Issues unresolved at one meeting may be discussed at subsequent meetings until each such issue is
resolved. 

 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. 
  

	 	E.	 ̈ (Optional Provision – Forfeiture Penalties)

 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. 
  

	6.	 	APPROVAL BY PARTIES 

  

	 	A.	GENERAL MATTERS 

 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. 

  
 COPYRIGHT © 2005 by
COPAS, Inc. 

  
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	  	 COPAS 2005 Accounting Procedure
 Recommended by COPAS, Inc.

  

 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. 

 

	 	B.	AMENDMENTS 

 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. 
  

	 	C.	AFFILIATES 

 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. 

II. DIRECT CHARGES 
 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: 

 

	1.	 	RENTALS AND ROYALTIES 

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

 

	2.	 	LABOR 

  

	 	A.	Salaries and wages, including incentive compensation programs as set forth in COPAS MFI-37 (“Chargeability of Incentive Compensation Programs”), for:

  

	 	(1)	Operator’s field employees directly employed On-site in the conduct of Joint Operations, 

 

	 	(2)	Operator’s employees directly employed on Shore Base Facilities, Offshore Facilities, or other facilities serving the Joint Property if such costs are not charged
under Section II.6 (Equipment and Facilities Furnished by Operator) or are not a function covered under Section III (Overhead), 

  

	 	(3)	Operator’s employees providing First Level Supervision, 

  

	 	(4)	Operator’s employees providing On-site Technical Services for the Joint Property if such charges are excluded from the overhead rates in Section III
(Overhead), 

  

	 	(5)	Operator’s employees providing Off-site Technical Services for the Joint Property if such charges are excluded from the overhead rates in Section III
(Overhead). 

 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). 
  

	 	B.	Operator’s cost of holiday, vacation, sickness, and disability benefits, and other customary allowances paid to employees whose salaries and wages are chargeable
to the Joint Account under Section II.2.A, excluding severance payments or other termination allowances. Such costs under this Section II.2.B may be charged on a “when and as-paid basis” or by “percentage assessment” on the
amount of salaries and wages chargeable to the Joint Account under Section II.2.A. If percentage assessment is used, the rate shall be based on the Operator’s cost experience. 

 

	 	C.	Expenditures or contributions made pursuant to assessments imposed by governmental authority that are applicable to costs chargeable to the Joint Account under Sections
II.2.A and B. 

  
 COPYRIGHT © 2005 by
COPAS, Inc. 

  
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	 	D.	Personal Expenses of personnel whose salaries and wages are chargeable to the Joint Account under Section II.2.A when the expenses are incurred in connection with
directly chargeable activities. 

  

	 	E.	Reasonable relocation costs incurred in transferring to the Joint Property personnel whose salaries and wages are chargeable to the Joint Account under Section II.2.A.
Notwithstanding the foregoing, relocation costs that result from reorganization or merger of a Party, or that are for the primary benefit of the Operator, shall not be chargeable to the Joint Account. Extraordinary relocation costs, such as those
incurred as a result of transfers from remote locations, such as Alaska or overseas, shall not be charged to the Joint Account unless approved by the Parties pursuant to Section I.6.A (General Matters). 

 

	 	F.	Training costs as specified in COPAS MFI-35 (“Charging of Training Costs to the Joint Account”) for personnel whose salaries and wages are chargeable under
Section II.2.A. This training charge shall include the wages, salaries, training course cost, and Personal Expenses incurred during the training session. The training cost shall be charged or allocated to the property or properties directly
benefiting from the training. The cost of the training course shall not exceed prevailing commercial rates, where such rates are available. 

  

	 	G.	Operator’s current cost of established plans for employee benefits, as described in COPAS MFI-27 (“Employee Benefits Chargeable to Joint Operations and
Subject to Percentage Limitation”), applicable to the Operator’s labor costs chargeable to the Joint Account under Sections II.2.A and B based on the Operator’s actual cost not to exceed the employee benefits limitation percentage
most recently recommended by COPAS. 

  

	 	H.	Award payments to employees, in accordance with COPAS MFI-49 (“Awards to Employees and Contractors”) for personnel whose salaries and wages are chargeable
under Section II.2.A. 

  

	3.	 	MATERIAL 

 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. 

 

	4.	 	TRANSPORTATION 

  

	 	A.	Transportation of the Operator’s, Operator’s Affiliate’s, or contractor’s personnel necessary for Joint Operations. 

 

	 	B.	Transportation of Material between the Joint Property and another property, or from the Operator’s warehouse or other storage point to the Joint Property, shall be
charged to the receiving property using one of the methods listed below. Transportation of Material from the Joint Property to the Operator’s warehouse or other storage point shall be paid for by the Joint Property using one of the methods
listed below: 

  

	 	(1)	If the actual trucking charge is less than or equal to the Excluded Amount the Operator may charge actual trucking cost or a theoretical charge from the Railway
Receiving Point to the Joint Property. The basis for the theoretical charge is the per hundred weight charge plus fuel surcharges from the Railway Receiving Point to the Joint Property. The Operator shall consistently apply the selected alternative.

  

	 	(2)	If the actual trucking charge is greater than the Excluded Amount, the Operator shall charge Equalized Freight. Accessorial charges such as loading and unloading costs,
split pick-up costs, detention, call out charges, and permit fees shall be charged directly to the Joint Property and shall not be included when calculating the Equalized Freight. 

 

	5.	 	SERVICES 

 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). 

 

	6.	 	EQUIPMENT AND FACILITIES FURNISHED BY OPERATOR 

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

 

	 	A.	The Operator shall charge the Joint Account for use of Operator-owned equipment and facilities, including but not limited to production facilities, Shore Base
Facilities, Offshore Facilities, and Field Offices, at rates commensurate with the costs of ownership and operation. The cost of Field Offices shall be chargeable to the extent the Field Offices provide direct service to personnel who are chargeable
pursuant to Section II.2.A (Labor). Such rates may include labor, maintenance, repairs, other operating expense, insurance, taxes, depreciation using straight line depreciation method, and interest on gross investment less accumulated
depreciation not to exceed twelve percent ( 12%) per annum; provided, however, depreciation shall not be charged when the equipment and facilities investment have been fully depreciated. The rate may include an element of the
estimated cost for abandonment, reclamation, and dismantlement. Such rates shall not exceed the average commercial rates currently prevailing in the immediate area of the Joint Property. 

  
 COPYRIGHT © 2005 by
COPAS, Inc. 

  
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	 	B.	In lieu of charges in Section II.6.A above, the Operator may elect to use average commercial rates prevailing in the immediate area of the Joint Property, less twenty
percent (20%). If equipment and facilities are charged under this Section II.6.B, the Operator shall adequately document and support commercial rates and shall periodically review and update the rate and the supporting documentation. For automotive
equipment, the Operator may elect to use rates published by the Petroleum Motor Transport Association (PMTA) or such other organization recognized by COPAS as the official source of rates. 

 

	7.	 	AFFILIATES 

 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. 
  

	 	A.	Charges for an Affiliate’s goods and/or services used in operations requiring an AFE or other authorization from the Non-Operators may be made without the
approval of the Parties provided (i) the Affiliate is identified and the Affiliate goods and services are specifically detailed in the approved AFE or other authorization, and (ii) the total costs for such Affiliate’s goods and
services billed to such individual project do not exceed $ N/A If the total costs for an Affiliate’s goods and services charged to such individual project are not specifically detailed in the approved
AFE or authorization or exceed such amount, charges for such Affiliate shall require approval of the Parties, pursuant to Section I.6.A (General Matters). 

 

	 	B.	For an Affiliate’s goods and/or services used in operations not requiring an AFE or other authorization from the Non-Operators, charges for such
Affiliate’s goods and services shall require approval of the Parties, pursuant to Section I.6.A (General Matters), if the charges exceed $ N/A in a given calendar year.

  

	 	C.	The cost of the Affiliate’s services shall not exceed average commercial rates prevailing in the area of the Joint Property, unless the Operator obtains
the Non-Operators’ approval of such rates. The Operator shall adequately document and support commercial rates and shall periodically review and update the rate and the supporting documentation; provided, however, documentation of commercial
rates shall not be required if the Operator obtains Non-Operator approval of its Affiliate’s rates or charges prior to billing Non-Operators for such Affiliate’s goods and services. Notwithstanding the foregoing, direct charges
for Affiliate-owned communication facilities or systems shall be made pursuant to Section II.12 (Communications). 

 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).

  

	8.	 	DAMAGES AND LOSSES TO JOINT PROPERTY 

 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. 
  

	9.	 	LEGAL EXPENSE 

 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. 

 

	10.	 	TAXES AND PERMITS 

 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. 

  
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 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. 

 

	11.	 	INSURANCE 

 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. 
  

	12.	 	COMMUNICATIONS 

 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. 

 

	13.	 	ECOLOGICAL, ENVIRONMENTAL, AND SAFETY 

 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. 
  

	14.	 	ABANDONMENT AND RECLAMATION 

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

 

	15.	 	OTHER EXPENDITURES 

 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). 

III. OVERHEAD 
 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: 
  

	 	•	 	 warehousing, other than for warehouses that are jointly owned under this Agreement 

 

	 	•	 	 design and drafting (except when allowed as a direct charge under Sections II.13, III.1.A(ii), and III.2, Option B) 

 

	 	•	 	 inventory costs not chargeable under Section V (Inventories of Controllable Material) 

 

	 	•	 	 procurement 

  

	 	•	 	 administration 

  

	 	•	 	 accounting and auditing 

  

	 	•	 	 gas dispatching and gas chart integration 

  
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	 	•	 	 human resources 

  

	 	•	 	 management 

  

	 	•	 	 supervision not directly charged under Section II.2 (Labor) 

 

	 	•	 	 legal services not directly chargeable under Section II.9 (Legal Expense) 

 

	 	•	 	 taxation, other than those costs identified as directly chargeable under Section II.10 (Taxes and Permits) 

 

	 	•	 	 preparation and monitoring of permits and certifications; preparing regulatory reports; appearances before or meetings with governmental agencies or
other authorities having jurisdiction over the Joint Property, other than On-site inspections; reviewing, interpreting, or submitting comments on or lobbying with respect to Laws or proposed Laws. 

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. 
  

	1.	 	OVERHEAD—DRILLING AND PRODUCING OPERATIONS 

 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: 

 

	 	þ	(Alternative 1) Fixed Rate Basis, Section III.1.B. 

  

	 	 ̈	(Alternative 2) Percentage Basis, Section III.1.C. 

  

	 	A.	TECHNICAL SERVICES 

  

	 	(i)	Except as otherwise provided in Section II.13 (Ecological Environmental, and Safety) and Section III.2 (Overhead – Major Construction and
Catastrophe), or by approval of the Parties pursuant to Section I.6.A (General Matters), the salaries, wages, related payroll burdens and benefits, and Personal Expenses for On-site Technical Services, including third party
Technical Services: 

  

	 	þ	(Alternative 1 – Direct) shall be charged direct to the Joint Account. 

 

	 	 ̈	(Alternative 2 – Overhead) shall be covered by the overhead rates. 

 

	 	(ii)	Except as otherwise provided in Section II.13 (Ecological, Environmental, and Safety) and Section III.2 (Overhead – Major Construction and
Catastrophe), or by approval of the Parties pursuant to Section I.6.A (General Matters), the salaries, wages, related payroll burdens and benefits, and Personal Expenses for Off-site Technical Services, including third party
Technical Services: 

  

	 	þ	(Alternative 1 – All Overhead) shall be covered by the overhead rates. 

 

	 	 ̈	(Alternative 2 – All Direct) shall be charged direct to the Joint Account. 

 

	 	 ̈	(Alternative 3 – Drilling Direct) shall be charged direct to the Joint Account, only to the extent such Technical Services are
directly attributable to drilling, redrilling, deepening, or sidetracking operations, through completion, temporary abandonment, or abandonment if a dry hole. Off-site Technical Services for all other operations, including workover, recompletion,
abandonment of producing wells, and the construction or expansion of fixed assets not covered by Section III.2 (Overhead – Major Construction and Catastrophe) shall be covered by the overhead rates. 

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. 
  

	 	B.	OVERHEAD—FIXED RATE BASIS 

  

	 	(1)	The Operator shall charge the Joint Account at the following rates per well per month: 

Drilling Well Rate per month $6,000 (prorated for less than a full month) 

Producing Well Rate per month $ 600 
  

	 	(2)	Application of Overhead—Drilling Well Rate shall be as follows: 

  

	 	(a)	Charges for onshore drilling wells shall begin on the spud date and terminate on the date the drilling and/or completion equipment used on the well is released,
whichever occurs later. Charges for offshore and inland waters drilling wells shall begin on the date the drilling or completion equipment arrives on location and terminate on the date the drilling or completion equipment moves off location, or is
released, whichever occurs first. No charge shall be made during suspension of drilling and/or completion operations for fifteen (15) or more consecutive calendar days. 

  
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	 	(b)	Charges for any well undergoing any type of workover, recompletion, and/or abandonment for a period of five (5) or more consecutive work–days shall be made at
the Drilling Well Rate. Such charges shall be applied for the period from date operations, with rig or other units used in operations, commence through date of rig or other unit release, except that no charges shall be made during suspension of
operations for fifteen (15) or more consecutive calendar days. 

  

	 	(3)	Application of Overhead—Producing Well Rate shall be as follows: 

  

	 	(a)	An active well that is produced, injected into for recovery or disposal, or used to obtain water supply to support operations for any portion of the month shall be
considered as a one-well charge for the entire month. 

  

	 	(b)	Each active completion in a multi-completed well shall be considered as a one-well charge provided each completion is considered a separate well by the governing
regulatory authority. 

  

	 	(c)	A one-well charge shall be made for the month in which plugging and abandonment operations are completed on any well, unless the Drilling Well Rate applies, as provided
in Sections III.1.B.(2)(a) or (b). This one-well charge shall be made whether or not the well has produced. 

  

	 	(d)	An active gas well shut in because of overproduction or failure of a purchaser, processor, or transporter to take production shall be considered as a one-well charge
provided the gas well is directly connected to a permanent sales outlet. 

  

	 	(e)	Any well not meeting the criteria set forth in Sections III.1.B.(3) (a), (b), (c), or (d) shall not qualify for a producing overhead charge.

  

	 	(4)	The well rates shall be adjusted on the first day of April each year following the effective date of the Agreement; provided, however, if this Accounting Procedure is
attached to or otherwise governing the payout accounting under a farmout agreement, the rates shall be adjusted on the first day of April each year following the effective date of such farmout agreement. The adjustment shall be computed by applying
the adjustment factor most recently published by COPAS. The adjusted rates shall be the initial or amended rates agreed to by the Parties increased or decreased by the adjustment factor described herein, for each year from the effective date of such
rates, in accordance with COPAS MFI-47 (“Adjustment of Overhead Rates”). 

  

	 	C.	OVERHEAD—PERCENTAGE BASIS 

  

	 	(1)	Operator shall charge the Joint Account at the following rates: 

 

	 	(a)	Development Rate          percent
(        )% of the cost of development of the Joint Property, exclusive of costs provided under Section II.9 (Legal Expense) and all Material salvage
credits. 

  

	 	(b)	Operating Rate          percent
(        %) of the cost of operating the Joint Property, exclusive of costs provided under Sections II.1 (Rentals and Royalties) and II.9 (Legal
Expense); all Material salvage credits; the value of substances purchased for enhanced recovery; all property and ad valorem taxes, and any other taxes and assessments that are levied, assessed, and paid upon the mineral interest in and to the
Joint Property. 

  

	 	(2)	Application of Overhead—Percentage Basis shall be as follows: 

 

	 	(a)	The Development Rate shall be applied to all costs in connection with: 

 

	 	[i]	drilling, redrilling, sidetracking, or deepening of a well 

 

	 	[ii]	a well undergoing plugback or workover operations for a period of five (5) or more consecutive work–days 

 

	 	[iii]	preliminary expenditures necessary in preparation for drilling 

 

	 	[iv]	expenditures incurred in abandoning when the well is not completed as a producer 

 

	 	[v]	construction or installation of fixed assets, the expansion of fixed assets and any other project clearly discernible as a fixed asset, other than Major
Construction or Catastrophe as defined in Section III.2 (Overhead-Major Construction and Catastrophe). 

  

	 	(b)	The Operating Rate shall be applied to all other costs in connection with Joint Operations, except those subject to Section III.2 (Overhead-Major
Construction and Catastrophe). 

  

	2.	 	OVERHEAD—MAJOR CONSTRUCTION AND CATASTROPHE 

 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. 

  
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 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. 
  

	 	A.	If the Operator absorbs the engineering, design and drafting costs related to the project: 

 

	 	(1)	6% of total costs if such costs are less than $100,000; plus 

  

	 	(2)	4% of total costs in excess of $100,000 but less than $1,000,000; plus 

 

	 	(3)	3% of total costs in excess of $1,000,000. 

  

	 	B.	If the Operator charges engineering, design and drafting costs related to the project directly to the Joint Account: 

 

	 	(1)	5% of total costs if such costs are less than $100,000; plus 

  

	 	(2)	3% of total costs in excess of $100,000 but less than $1,000,000; plus 

 

	 	(3)	2% of total costs in excess of $1,000,000. 

 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. 
  

	3.	 	AMENDMENT OF OVERHEAD RATES 

 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). 
 IV. MATERIAL PURCHASES, TRANSFERS, AND DISPOSITIONS 

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. 
  

	1.	 	DIRECT PURCHASES 

 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. 

  
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	2.	 	TRANSFERS 

 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. 
  

	 	A.	PRICING 

 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: 
  

	 	(1)	Using published prices in effect on date of movement as adjusted by the appropriate COPAS Historical Price Multiplier (HPM) or prices provided by the COPAS Computerized
Equipment Pricing System (CEPS). 

  

	 	(a)	For oil country tubulars and line pipe, the published price shall be based upon eastern mill carload base prices (Houston, Texas, for special end) adjusted as of date
of movement, plus transportation cost as defined in Section IV.2.B (Freight). 

  

	 	(b)	For other Material, the published price shall be the published list price in effect at date of movement, as listed by a Supply Store nearest the Joint Property where
like Material is normally available, or point of manufacture plus transportation costs as defined in Section IV.2.B (Freight). 

  

	 	(2)	Based on a price quotation from a vendor that reflects a current realistic acquisition cost. 

 

	 	(3)	Based on the amount paid by the Operator for like Material in the vicinity of the Joint Property within the previous twelve (12) months from the date of physical
transfer. 

  

	 	(4)	As agreed to by the Participating Parties for Material being transferred to the Joint Property, and by the Parties owning the Material for Material being transferred
from the Joint Property. 

  

	 	B.	FREIGHT 

 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: 
  

	 	(1)	Transportation costs for oil country tubulars and line pipe shall be calculated using the distance from eastern mill to the Railway Receiving Point based on the carload
weight basis as recommended by the COPAS MFI-38 (“Material Pricing Manual”) and other COPAS MFIs in effect at the time of the transfer. 

  

	 	(2)	Transportation costs for special mill items shall be calculated from that mill’s shipping point to the Railway Receiving Point. For transportation costs from other
than eastern mills, the 30,000-pound interstate truck rate shall be used. Transportation costs for macaroni tubing shall be calculated based on the interstate truck rate per weight of tubing transferred to the Railway Receiving Point.

  

	 	(3)	Transportation costs for special end tubular goods shall be calculated using the interstate truck rate from Houston, Texas, to the Railway Receiving Point.

  

	 	(4)	Transportation costs for Material other than that described in Sections IV.2.B.(1) through (3), shall be calculated from the Supply Store or point of manufacture,
whichever is appropriate, to the Railway Receiving Point 

 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. 
  

	 	C.	TAXES 

 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. 

  
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	 	D.	CONDITION 

  

	 	(1)	Condition “A” – New and unused Material in sound and serviceable condition shall be charged at one hundred percent (100%) of the price as determined
in Sections IV.2.A (Pricing), IV.2.B (Freight), and IV.2.C (Taxes). Material transferred from the Joint Property that was not placed in service shall be credited as charged without gain or loss; provided, however, any unused
Material that was charged to the Joint Account through a direct purchase will be credited to the Joint Account at the original cost paid less restocking fees charged by the vendor. New and unused Material transferred from the Joint Property may be
credited at a price other than the price originally charged to the Joint Account provided such price is approved by the Parties owning such Material, pursuant to Section I.6.A (General Matters). All refurbishing costs required or necessary to
return the Material to original condition or to correct handling, transportation, or other damages will be borne by the divesting property. The Joint Account is responsible for Material preparation, handling, and transportation costs for new and
unused Material charged to the Joint Property either through a direct purchase or transfer. Any preparation costs incurred, including any internal or external coating and wrapping, will be credited on new Material provided these services were not
repeated for such Material for the receiving property. 

  

	 	(2)	Condition “B” – Used Material in sound and serviceable condition and suitable for reuse without reconditioning shall be priced by multiplying the price
determined in Sections IV.2.A (Pricing), IV.2.B (Freight), and IV.2.C (Taxes) by seventy-five percent (75%). 

 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. 
  

	 	(3)	Condition “C” – Material that is not in sound and serviceable condition and not suitable for its original function until after reconditioning shall be
priced by multiplying the price determined in Sections IV.2.A (Pricing), IV.2.B (Freight), and IV.2.C (Taxes) by fifty percent (50%). 

 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. 

 

	 	(4)	Condition “D” – Material that (i) is no longer suitable for its original purpose but useable for some other purpose, (ii) is obsolete, or
(iii) does not meet original specifications but still has value and can be used in other applications as a substitute for items with different specifications, is considered Condition “D” Material. Casing, tubing, or drill pipe used as
line pipe shall be priced as Grade A and B seamless line pipe of comparable size and weight. Used casing, tubing, or drill pipe utilized as line pipe shall be priced at used line pipe prices. Casing, tubing, or drill pipe used as higher pressure
service lines than standard line pipe, e.g., power oil lines, shall be priced under normal pricing procedures for casing, tubing, or drill pipe. Upset tubular goods shall be priced on a non-upset basis. For other items, the price used should result
in the Joint Account being charged or credited with the value of the service rendered or use of the Material, or as agreed to by the Parties pursuant to Section 1.6.A (General Matters). 

 

	 	(5)	Condition “E” – Junk shall be priced at prevailing scrap value prices. 

 

	 	E.	OTHER PRICING PROVISIONS 

  

	 	(1)	Preparation Costs 

 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”). 
  

	 	(2)	Loading and Unloading Costs 

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”). 

  
 COPYRIGHT © 2005 by
COPAS, Inc. 

  
 13 

			
	

	  	 COPAS 2005 Accounting Procedure
 Recommended by COPAS, Inc.

  

	3.	 	DISPOSITION OF SURPLUS 

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: 
  

	 	•	 	 The Operator may, through a sale to an unrelated third party or entity, dispose of surplus Material having a gross sale value that is less than or
equal to the Operator’s expenditure limit as set forth in the Agreement to which this Accounting Procedure is attached without the prior approval of the Parties owning such Material. 

 

	 	•	 	 If the gross sale value exceeds the Agreement expenditure limit, the disposal must be agreed to by the Parties owning such Material.

  

	 	•	 	 Operator may purchase surplus Condition “A” or “B” Material without approval of the Parties owning such Material, based on the
pricing methods set forth in Section IV.2 (Transfers). 

  

	 	•	 	 Operator may purchase Condition “C” Material without prior approval of the Parties owning such Material if the value of the Materials, based
on the pricing methods set forth in Section IV.2 (Transfers), is less than or equal to the Operator’s expenditure limitation set forth in the Agreement. The Operator shall provide documentation supporting the classification of the
Material as Condition C. 

  

	 	•	 	 Operator may dispose of Condition “D” or “E” Material under procedures normally utilized by Operator without prior approval of the
Parties owning such Material. 

  

	4.	 	SPECIAL PRICING PROVISIONS 

  

	 	A.	PREMIUM PRICING 

 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. 
  

	 	B.	SHOP-MADE ITEMS 

 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. 
  

	 	C.	MILL REJECTS 

 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. 
 V. INVENTORIES OF CONTROLLABLE
MATERIAL 
 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. 

  
 COPYRIGHT © 2005 by
COPAS, Inc. 

  
 14 

			
	

	  	 COPAS 2005 Accounting Procedure
 Recommended by COPAS, Inc.

  

	1.	 	DIRECTED INVENTORIES 

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: 
  

	 	A.	A per diem rate for each inventory person, representative of actual salaries, wages, and payroll burdens and benefits of the personnel performing the inventory or a
rate agreed to by the Parties pursuant to Section I.6.A (General Matters). The per diem rate shall also be applied to a reasonable number of days for pre-inventory work and report preparation. 

 

	 	B.	Actual transportation costs and Personal Expenses for the inventory team. 

 

	 	C.	Reasonable charges for report preparation and distribution to the Non-Operators. 

 

	2.	 	NON-DIRECTED INVENTORIES 

  

	 	A.	OPERATOR INVENTORIES 

 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. 

 

	 	B.	NON-OPERATOR INVENTORIES 

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. 
  

	 	C.	SPECIAL INVENTORIES 

 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). 

  
 COPYRIGHT © 2005 by
COPAS, Inc. 

  
 15 

 EXHIBIT D 
 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. 
 INSURANCE 
  

	1.	The Operator shall carry for the benefit of the joint account insurance unless otherwise agreed, to be comprised of the following coverage: 

 

	 	A.	Commercial General Liability 

$10,000,000. Each occurrence and in the aggregate 
  

	 	B.	Operator’s Extra Expense (Control of Well) 

 $10,000,000 for wells 10,000 feet or greater in depth 
 $5,000,000 for wells less
than 10,000 feet in depth 
 Combined Single Limit and any one accident or occurrence for 100% interest. 

 

	2.	The Operator shall carry for the benefit of the joint account the following minimum amounts of insurance: 

 

	 	A:	Workmen’s Compensation in accordance with Federal law and the laws of the State in which operations will be conducted and/or other applicable jurisdiction.

  

	 	B.	Employer’s Liability 

  

			
	 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

  

	 	C.	Comprehensive Automobile Public Liability 

  

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

  

	3.	No other insurance will be required other than that set forth above. Premiums associated with the insurance for the benefit of the Joint Account herein shall be charged
to the Joint Account. 

  

	4.	The insurance provided for herein for the benefit of the Joint Account provides for certain deductibles to be borne by the insured parties. In the event a claim is made
by the Operator on behalf of the Joint Account, and the insurance proceeds are subject to reduction as a result of a deductible provision, said deductible amount shall be a direct charge to the Joint Account. 

  
 Exhibit D

 Page 1 of 3 

	5.	The insurance provided for herein shall be primary regardless of any insurance carried by Operator or Non-Operator for their own account. 

 

	6.	Insurance, other than Worker’s Compensation, will name Non-Operator as an additional insured and will provide a waiver of subrogation in favor of Non-Operator.

  

	7.	In the event a Non-Operator elects to carry its own insurance and waive the insurance coverage set forth above, then the Non-Operator shall notify Operator seven days
prior to any operation proposed under this Agreement wherein the applicable premiums shall not be charged to the Joint Account. If Non- Operator elects to carry its own insurance, or anytime upon the request of Operator, Non- Operator shall provide
a Certificate of Insurance confirming its insurance coverage. 

  
 Exhibit D

 Page 2 of 3 

 ELECTION BALLOT 

Well 

Location 

City State 
 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: 
 Commercial General Liability: 

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. 
 Operator’s Extra Expense: 
 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. 
  

					
	NUCOR ENERGY HOLDINGS INC.
		
	By:	 	 
		
	Print Name:	 	 
		
	Title:	 	 
		
	Date Signed:	 	 

 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. 
 Please indicate your well control insurance
election below: 
  

	            	Elect to be covered under the JOA with the Operator 

  

	            	Elect to carry own insurance – CERTIFICATE SHOWING PROOF OF INSURANCE (with Encana Oil & Gas (USA) Inc. named as certificate holder) MUST BE SUBMITTED
TO ENCANA BEFORE THE START OF OPERATIONS. 

  
 Exhibit D

 Page 3 of 3 

 EXHIBIT E 
 GAS BALANCING AGREEMENT (“AGREEMENT”) 
 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. 

 

	1.	 	DEFINITIONS 

 The
following definitions shall apply to this Agreement: 
  

	 	1.01	“Arm’s Length Agreement” shall mean any gas sales agreement with an unaffiliated purchaser or any gas sales agreement with an affiliated purchaser where
the sales price and delivery conditions under such agreement are representative of prices and delivery conditions existing under other similar agreements in the area between unaffiliated parties at the same time for natural gas of comparable quality
and quantity. 

  

	 	1.02	“Balancing Area” shall mean: 

 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. 

 

	 	1.03	“Full Share of Current Production” shall mean the Percentage Interest of each Party in the Gas actually produced from the Balancing Area during each month.

  

	 	1.04	“Gas” shall mean all hydrocarbons produced or producible from the Balancing Area, whether from a well classified as an oil well or gas well by the regulatory
agency having jurisdiction in such matters, which are or may be made available for sale or separate disposition by the Parties, excluding oil, condensate and other liquids recovered by field equipment operated for the joint account. “Gas”
does not include gas used in joint operations, such as for fuel, recycling or reinjection, or which is vented or lost prior to its delivery from the Balancing Area. 

 

	 	1.05	“Makeup Gas” shall mean any Gas taken by an Underproduced Party from the Balancing Area in excess of its Full Share of Current Production, whether pursuant to
Section 3.3 or Section 4.1 hereof. 

  

	 	1.06	“Mcf” shall mean one thousand cubic feet. A cubic foot of Gas shall mean the volume of gas contained in one cubic foot of space at a standard pressure base
and at a standard temperature base. 

  

	 	1.07	“MMBtu” shall mean one million British Thermal Units. A British Thermal Unit shall mean the quantity of heat required to raise one pound avoirdupois of pure
water from 58.5 degrees Fahrenheit to 59.5 degrees Fahrenheit at a constant pressure of 14.73 pounds per square inch absolute. 

  

	 	1.08	“Operator” shall mean the individual or entity designated under the terms of the Operating Agreement or, in the event this Agreement is not employed in
connection with an operating agreement, the individual or entity designated as the operator of the well(s) located in the Balancing Area. 

  

	 	1.09	“Overproduced Party” shall mean any Party having taken a greater quantity of Gas from the Balancing Area than the Percentage Interest of such Party in the
cumulative quantity of all Gas produced from the Balancing Area. 

  

	 	1.10	“Overproduction” shall mean the cumulative quantity of Gas taken by a Party in excess of its Percentage Interest in the cumulative quantity of all Gas
produced from the Balancing Area. 

  

	 	1.11	“Party” shall mean those individuals or entities subject to this Agreement, and their respective heirs, successors, transferees and assigns.

  

	 	1.12	“Percentage Interest” shall mean the percentage or decimal interest of each Party in the Gas produced from the Balancing Area pursuant to the Operating
Agreement covering the Balancing Area. 

  

	 	1.13	“Published Reference Price” shall mean the Index price published for the applicable geographic area on the transporting pipeline in the first of the
production month’s edition of Inside FERC Gas Market Report (“Inside FERC Index”). In the event that the Inside FERC Index ceases to be published, the parties will attempt in good faith to agree on a replacement
reference price reflective of the same market reflected by the Inside FERC Index. 

  

	 	1.14	“Royalty” shall mean payments on production of Gas from the Balancing Area to all owners of royalties, overriding royalties, production payments or similar
interests. 

  

	 	1.15	“Underproduced Party” shall mean any Party having taken a lesser quantity of Gas from the Balancing Area than the Percentage Interest of such Party in the
cumulative quantity of all Gas produced from the Balancing Area. 

  

	 	1.16	“Underproduction” shall mean the deficiency between the cumulative quantity of Gas taken by a Party and its Percentage Interest in the cumulative quantity of
all Gas produced from the Balancing Area. 

  

	 	1.17	“Winter Period” shall mean the month(s) of November and December in one calendar year and the month(s) of January, February, and March in the
succeeding calendar year. 

  

	2.	 	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. 

  
 Exhibit E

 Page 1 of 5 

	3.	 	RIGHT OF PARTIES TO TAKE GAS 

 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. 
  

	4.	 	IN-KIND BALANCING 

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.	 	STATEMENT OF GAS BALANCES 

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. 

  
 Exhibit E

 Page 2 of 5 

 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.	 	PAYMENTS ON PRODUCTION 

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.	 	CASH SETTLEMENTS 

 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. 

 

	8.	 	OPERATING COSTS 

 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. 

 

	9.	 	LIQUIDS 

 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. 

  
 Exhibit E

 Page 3 of 5 

	10.	 	AUDIT RIGHTS 

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.	 	MISCELLANEOUS 

 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.	 	ASSIGNMENT AND RIGHTS UPON ASSIGNMENT 

 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. 

  
 Exhibit E

 Page 4 of 5 

	13.	 	DISPUTE RESOLUTION 

 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. 

  
 Exhibit E

 Page 5 of 5 

 EXHIBIT F 
 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. 
 NON-DISCRIMINATION AND CERTIFICATION OF 

NON-SEGREGATED FACILITIES 

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. 

 Exhibit G to 

 

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. 

 TAX PARTNERSHIP PROVISIONS 

OF THE ENCANA-NUCOR 2012 TAX PARTNERSHIP 
 EIN: [TBD] 
 Table of Contents 

 

									
	 1.
	 	 General Provisions
	  	 	-2-	  
				
		 	 1.1.
	 	Designation of Documents.	  	 	-2-	  
				
		 	 1.2.
	 	Relationship of the Parties.	  	 	-2-	  
				
		 	 1.3.
	 	Priority of Provisions of this Exhibit.	  	 	-2-	  
				
		 	 1.4.
	 	Survivorship.	  	 	-2-	  
			
	 2.
	 	 Tax Reporting Partner
	  	 	-3-	  
			
	 3.
	 	 Income Tax Compliance and Capital Accounts
	  	 	-3-	  
				
		 	 3.1.
	 	Tax Returns.	  	 	-3-	  
				
		 	 3.2.
	 	Fair Market Value Capital Accounts.	  	 	-3-	  
				
		 	 3.3.
	 	Information Requests.	  	 	-3-	  
				
		 	 3.4.
	 	Best Efforts Without Liability.	  	 	-3-	  
				
		 	 3.5.
	 	Tax Matters Partner	  	 	-3-	  
			
	 4.
	 	 Tax and FMV Capital Account Elections
	  	 	-4-	  
				
		 	 4.1.
	 	General Elections.	  	 	-4-	  
				
		 	 4.2.
	 	Depletion.	  	 	-5-	  
				
		 	 4.3.
	 	Election Out Under Code 761(a).	  	 	-5-	  
				
		 	 4.4.
	 	Consent Requirements For Subsequent Tax or FMV Capital Account Elections.	  	 	-5-	  
			
	 5.
	 	 Capital Contributions and FMV Capital Accounts
	  	 	-5-	  
				
		 	 5.1.
	 	Capital Contributions.	  	 	-5-	  
				
		 	 5.2.
	 	FMV Capital Accounts.	  	 	-5-	  
			
	 6.
	 	 Partnership Allocations
	  	 	-6-	  
				
		 	 6.1.
	 	FMV Capital Account Allocations.	  	 	-6-	  
				
		 	 6.2.
	 	Tax Return and Tax Basis Capital Account Allocations.	  	 	-7-	  
			
	 7.
	 	 Termination and Liquidating Distribution
	  	 	-8-	  
				
		 	 7.1.
	 	Termination of the Tax Partnership.	  	 	-8-	  
				
		 	 7.2.
	 	Balancing of FMV Capital Accounts.	  	 	-8-	  
				
		 	 7.3.
	 	Deemed Sale Gain/Loss Charge Back.	  	 	-8-	  

  
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 Encana Model Tax Partnership Agreement 

									
				
		 	 7.4.
	 	Deficit Make-Up Obligation and Balancing Cash Contributions.	  	 	-8-	  
				
		 	 7.5.
	 	Distribution to Balance Capital Accounts.	  	 	-9-	  
				
		 	 7.6.
	 	FMV Determination.	  	 	-9-	  
				
		 	 7.7.
	 	Final Distribution.	  	 	-9-	  
			
	 8.
	 	 Transfers, Indemnification, and Correspondence
	  	 	-9-	  
				
		 	 8.1.
	 	Transfer of Tax Partnership Interests.	  	 	-9-	  
				
		 	 8.2
	 	Farmouts, Distributions and Contributions to Other Partnerships	  	 	-9-	  
				
		 	 8.3.
	 	Correspondence.	  	 	-9-	  
			
	 9.
	 	 Elections and Changes to above Provisions
	  	 	-10-	  
				
		 	 9.1.
	 	Special Tax Elections.	  	 	-10-	  

  

	 	1.	GENERAL PROVISIONS 

  

	 	1.1.	Designation of Documents. 

 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. 
  

	 	1.2.	Relationship of the Parties. 

 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. 

 

	 	1.3.	Priority of Provisions of this Exhibit. 

 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.	Survivorship. 

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. 

  
 -2-

 Encana Model Tax Partnership Agreement 

 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. 

 

	 	2.	TAX REPORTING PARTNER 

 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. 

 

	 	3.	INCOME TAX COMPLIANCE AND CAPITAL ACCOUNTS 

 

	 	3.1.	Tax Returns. 

 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. 

 

	 	3.2.	Fair Market Value Capital Accounts. 

 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. 
  

	 	3.3.	Information Requests. 

 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). 

 

	 	3.4.	Best Efforts Without Liability. 

 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. 

 

	 	3.5.	Tax Matters Partner 

 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-

 Encana Model Tax Partnership Agreement 

 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. 
  

	 	4.	TAX AND FMV CAPITAL ACCOUNT ELECTIONS 

 

	 	4.1.	General Elections. 

 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; 
 4.1.3. the accrual method of accounting; 

4.1.4. to report income on a calendar year basis; 
 and the Tax Partnership shall also make any elections as specially noted in Sec. 9.1, below. 

  
 -4-

 Encana Model Tax Partnership Agreement 

	 	4.2.	Depletion. 

 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.	Election Out Under Code §761(a). 

 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). 
  

	 	4.4.	Consent Requirements For Subsequent Tax or FMV Capital Account Elections. 

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

 

	 	5.	CAPITAL CONTRIBUTIONS AND FMV CAPITAL ACCOUNTS 

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. 
  

	 	5.1.	Capital Contributions. 

 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. 

 

	 	5.2.	FMV Capital Accounts. 

 The FMV capital accounts
shall be increased and decreased as follows: 
 5.2.1. The FMV capital account of a Party shall be increased
by: 
 (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); 

  
 -5-

 Encana Model Tax Partnership Agreement 

 (ii) that Party’s share of Tax Partnership items of income or gain, allocated in
accordance with Sec. 6.1; and 
 (iii) that Party’s share of any Code §705(a)(1)(B) item. 

5.2.2. The FMV capital account of a Party shall be decreased by: 

(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, 
 (iii) that Party’s share of any Code §705(a)(2)(B) item. 

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. 
  

	 	6.	PARTNERSHIP ALLOCATIONS 

  

	 	6.1.	FMV Capital Account Allocations. 

 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-

 Encana Model Tax Partnership Agreement 

 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.	Tax Return and Tax Basis Capital Account Allocations. 

 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). 

  
 -7-

 Encana Model Tax Partnership Agreement 

 6.2.8. Take-in-kind. 

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. 

 

	 	7.	TERMINATION AND LIQUIDATING DISTRIBUTION 

 

	 	7.1.	Termination of the Tax Partnership. 

 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. 
  

	 	7.2.	Balancing of FMV Capital Accounts. 

 Second, the
FMV capital accounts of the Parties shall be determined as described hereafter. The TRP shall take the actions specified under Secs. 7.2 through 7.5 in order to cause the Parties’ FMV capital accounts to reflect, to the maximum extent possible,
their interests under the 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.” 
  

	 	7.3.	Deemed Sale Gain/Loss Charge Back. 

 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. 

 

	 	7.4.	Deficit Make-Up Obligation and Balancing Cash Contributions. 

 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. 

  
 -8-

 Encana Model Tax Partnership Agreement 

	 	7.5.	Distribution to Balance Capital Accounts. 

 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. 
  

	 	7.6.	FMV Determination. 

 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. 
  

	 	7.7.	Final Distribution. 

 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.

  

	 	8.	TRANSFERS, INDEMNIFICATION, AND CORRESPONDENCE 

 

	 	8.1.	Transfer of Tax Partnership Interests. 

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. 
  

	 	8.2.	Farmouts, Distributions and Contributions to Other Partnerships. 

 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. 
  

	 	8.3	Correspondence. 

 All correspondence relating to
the preparation and filing of the Tax Partnership’s income tax returns and capital accounts shall be sent to: 
 (Attach
separate list, if necessary) 
  

			
	TRP	  	“Att to:” reference
	 Encana Oil & Gas (USA) Inc.
 370 17th
Street, Suite 1700
 Denver, CO 80202
	  	Tax Department
		
	 Nucor Energy Holdings Inc.

1915 Rexford Road
 Charlotte, NC
28211
	  	Tax Department

  
 -9-

 Encana Model Tax Partnership Agreement 

	 	9.	ELECTIONS AND CHANGES TO ABOVE PROVISIONS 

 

	 	9.1.	Special Tax Elections. 

 With respect to Sec.
4.1, the Parties agree (if not agreed, insert “No”): 
  

					
	 a) that the Tax Partnership shall elect to account for dispositions of depreciable assets under the general asset method to the
extent permitted by Code §168(i)(4);
	  	 	No	  
		
	 b) that the Tax Partnership shall elect under Code §754 to adjust the basis of Tax Partnership property, with the
adjustments provided in Code §734 for a distribution of property and in Code §743 for a transfer of a partnership interest. In case of distribution of property the TRP shall adjust all tax basis capital accounts. In the case of a transfer
of a partnership interest the acquiring party(ies) shall establish and maintain its (their) tax basis capital account(s);
	  	 	Yes	  
		
	 c) that the Tax Partnership shall elect under Code §6231 to be subject to the TEFRA rules;
	  	 	No	  
		
	 d) that the Tax Partnership shall elect under Code §709 to amortize over the shortest permissible period all deferred
organizational expenses;
	  	 	Yes	  
		
	 e) that the Tax Partnership shall elect under Code §195 to amortize over the shortest permissible period all deferred
business start-up expenses;
	  	 	Yes	  
		
	 f) with respect to Sec. 4.2, Depletion, the Parties agree that the Tax Partnership shall use simulated percentage depletion
instead of simulated cost depletion;
	  	 	No	  
		
	 g) with respect to Sec.5.2.4, under the rules of Treas. Reg. § 1.704-1(b)(2)(iv)(f) the Parties agree that the FMV capital
accounts shall be revalued to reflect value changes of the Tax Partnership property upon the occurrence of the events specified in (5)(i) through (iii) of said -1(b)(2)(iv)(f) regulations;
	  	 	Yes	  
		
	 h) with respect to Sec. 6.2.8, the income attributable to take-in-kind production will be reflected on the tax
return.
	  	 	No	  

 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. 

  
 -10-

 Encana Model Tax Partnership Agreement 

 Exhibit H 
 Attached to and made a part of the 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.	WELL INFORMATION AND NOTIFICATION REQUIREMENTS 

  

 
  

					
	 FIELD/PAD:
	 	 	  	
			
	 OPERATOR:
	 	Encana Oil & Gas (USA) Inc.	  	
			
	 WELL:
	 	 	  	

  
  

 
  

In the drilling of the above well(s), please furnish Nucor Energy Holdings Inc. with the following notices, reports and information: 

Copies by mail or email: 
  

	 	1.	Daily drilling reports by email 

	 	2.	Location plat and drilling prognosis 

	 	3.	Regulatory forms 

	 	4.	DST reports, core analysis, etc. 

	 	5.	Mud logs 

	 	6.	Wireline log prints 

	 	7.	Cased hole logs 

	 	8.	Directional surveys 

	 	9.	Daily completion reports by email 

	 	10.	Production reports by email 

 Notify:

  

	 	Mail:	Nucor Energy Holdings Inc. 
1915 Rexford Road 
Charlotte, North Carolina 28211 
Attention: Chief Financial Officer 

 

	 	Telephone:	704-365-1321 

 AAPL – FORM 610RS – 1989 
  

 EXHIBIT I 
 MODEL FORM RECORDING SUPPLEMENT TO 
 OPERATING AGREEMENT AND FINANCING
STATEMENT 
 THIS AGREEMENT, entered into by and between Encana Oil & Gas (USA) Inc. hereinafter
referred to as “Operator,” and the signatory party or parties other than Operator, hereinafter referred to individually as “Non-Operator,” and collectively as “Non-Operators.” 

WHEREAS, the parties to this agreement executed that certain BJU Carry and Earning Agreement on October 31, 2012 but dated
effective November 1, 2012 to jointly drill Carry and/or Head’s Up Wells on lands identified on Exhibit “A” (said lands being hereinafter called the “Contract Area”). 

WHEREAS, the parties hereto executed an Operating Agreement on October 31, 2012 that is dated effective November 1, 2012
(herein the “Operating Agreement”), covering the Contract Area for the purpose of exploring and developing such lands, Leases and Interests for Oil and Gas; and 
 WHEREAS, the parties hereto have executed this agreement for the purpose of imparting notice to all persons of the rights and obligations of the parties under the Operating Agreement and for the further
purpose of perfecting those rights capable of perfection. 
 NOW, THEREFORE, in consideration of the mutual rights and
obligations of the parties hereto, it is agreed as follows: 
 1. This agreement supplements the Operating Agreement, which
Agreement in its entirety is incorporated herein by reference, and all terms used herein shall have the meaning ascribed to them in the Operating Agreement. 
 2. The parties do hereby agree that: 
 A. The Interests of the
parties comprising the Contract Area shall be subject to and burdened with the terms and provisions of this agreement and the Operating Agreement, and the parties do hereby commit such Interests to the performance thereof. 

B. The exploration and development of the Contract Area for Oil and Gas shall be governed by the terms and provisions of
the Operating Agreement, as supplemented by this agreement. 
 C. All costs and liabilities incurred in
operations under this agreement and the Operating Agreement shall be borne and paid, and all equipment and materials acquired in operations on the Contract Area shall be owned, by the parties hereto, as provided in the Operating Agreement.

 D. Regardless of the record title ownership to the Interests identified on Exhibit “A,” all
production of Oil and Gas from the Contract Area shall be owned by the parties as provided in the Operating Agreement; provided nothing contained in this agreement shall be deemed an assignment or cross-assignment of interests covered hereby.

 E. Each party shall pay or deliver, or cause to be paid or delivered, all burdens on its share of the
production from the Contract Area as provided in the Operating Agreement. 
 F. An overriding royalty, production
payment, net profits interest or other burden payable out of production hereafter created, assignments of production given as security for the payment of money and those overriding royalties, production payments and other burdens payable out of
production heretofore created and defined as Subsequently Created Interests in the Operating Agreement shall be (i) borne solely by the party whose interest is burdened therewith, (ii) subject to suspension if a party is required to assign
or relinquish to another party an interest which is subject to such burden, and (iii) subject to the lien and security interest hereinafter provided if the party subject to such burden fails to pay its share of expenses chargeable hereunder and
under the Operating Agreement, all upon the terms and provisions and in the times and manner provided by the Operating Agreement. 
 G. The Interests which are subject hereto may not be assigned or transferred except in accordance with those terms, provisions and restrictions in the Operating Agreement regulating such transfers. This
agreement and the Operating Agreement shall be binding upon and shall inure to the benefit of the parties hereto, and their respective heirs, devisees, legal representatives, and assigns, and the terms hereof shall be deemed to run with the or
interests included within the Contract Area. 
 H. The parties shall have the right to acquire an interest in
wells proposed to be abandoned, and interests to be relinquished as a result of non- participation in subsequent operations, all in accordance with the terms and provisions of the Operating Agreement. 

 I. The rights and obligations of the parties and
the adjustment of interests among them in the event of a failure or loss of title, each party’s right to propose operations, obligations with respect to participation in operations on the Contract Area and the consequences of a failure to
participate in operations, the rights and obligations of the parties regarding the marketing of production, and the rights and remedies of the parties for failure to comply with financial obligations shall be as provided in the Operating Agreement.

 J. Each party’s interest under this agreement and under the Operating Agreement shall be subject to
relinquishment for its failure to participate in subsequent operations and each party’s share of production and costs shall be reallocated on the basis of such relinquishment, all upon the terms and provisions provided in the Operating
Agreement. 
 K. All other matters with respect to exploration and development of the Contract Area and the
ownership and transfer of the Interest therein shall be governed by the terms and provisions of the Operating Agreement. 
 3.
The parties hereby grant reciprocal liens and security interests as follows: 
 A. Each party grants to the other
parties hereto a lien upon any interest it now owns or hereafter acquires in Carry and/or Head’s Up Wells in the Contract Area, 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, the Operating Agreement and the Carry and Earning Agreement, including but not limited
to payment of expense, interest and fees, the proper Disbursement of all monies paid under this agreement, the BJU Carry and Earning Agreement and the Operating Agreement, the assignment or relinquishment of interest in Carry and/or Head’s Up
Wells as required under this agreement, the BJU Carry and Earning Agreement and the Operating Agreement, and the proper performance of operations under this agreement and the Operating Agreement. 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 and in lands pooled or unitized therewith or otherwise becoming subject to this agreement, the BJU Carry and Earning
Agreement and the Operating Agreement, 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 the sale of production at the wellhead), contract rights, inventory and general intangibles relating thereto or arising therefrom, and all proceeds and products of the foregoing. 

B. 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 Interests covered by this agreement, the BJU Carry and
Earning Agreement and the Operating Agreement by, through or under such party. All parties acquiring an interest in Interests covered by this agreement, the BJU Carry and Earning Agreement and the Operating 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 the Operating Agreement and this instrument as to all obligations attributable to such interest under this agreement, the
BJU Carry and Earning Agreement and the Operating Agreement whether or not such obligations arise before or after such interest is acquired. 

  
 -1-

 AAPL – FORM 610RS – 1989 
  

 C. To the extent that the 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 to the extent provided by the BJU Carry and Earning Agreement and the Operating
Agreement. . 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. 
 Paragraphs D through G are intentionally omitted. 

H. The above described security will be financed at the wellhead of the well or wells located on the Contract Area and
this Recording Supplement may be filed in the land records in the County in which the Contract Area is located, and as a financing statement in all recording offices required under the Uniform Commercial Code or other applicable state statutes to
perfect the above-described security interest, and any party hereto may file a continuation statement as necessary under the Uniform Commercial Code, or other state laws. 
 4. This agreement shall be effective as of the date of the Operating Agreement as above recited. Upon termination of this agreement and the Operating Agreement and the satisfaction of all obligations
thereunder, 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 the request of Operator, if
Operator has complied with all of its financial obligations. 
 5. This agreement, the BJU Carry and Earning Agreement and the
Operating 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. No sale, encumbrance, transfer or other disposition shall be made by
any party of any interest in the Interests subject hereto except as expressly permitted under the BJU Carry and Earning and the Operating Agreement and, if permitted, shall be made expressly subject to this agreement, the BJU Carry and Earning
Agreement and the Operating Agreement and without prejudice to the rights of the other parties. If the transfer is permitted, the assignee of an ownership interest in any Interest shall be deemed a party to this agreement, the BJU Carry and Earning
Agreement and the Operating Agreement as to the interest assigned 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 interest by a party shall relieve such party of obligations previously incurred by such party under this agreement, the BJU Carry and Earning Agreement or the Operating Agreement with respect to the interest transferred, including
without limitation the obligation of a party to pay all costs attributable to an operation conducted under this agreement, the BJU Carry and Earning Agreement and the Operating Agreement in which such party has agreed to participate prior to making
such assignment, and the lien and security interest granted by Article VII.B. of the Operating Agreement and hereby, shall continue to burden the interest transferred to secure payment of any such obligation. 

6. In the event of a conflict between the terms and provisions of this agreement and the terms and provisions of the Operating Agreement,
then, as between the parties, the terms and provisions of the Operating Agreement shall control. 
 7. 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. In the event that any provision herein is illegal or unenforceable, the remaining provisions shall not be
affected, and shall be enforced as if the illegal or unenforceable provision did not appear herein. 
 8. Other provisions.

 -NONE- 
 IN WITNESS
WHEREOF, this agreement shall be effective as of the 1st day of November, 2012. 
  

							
	ATTEST OR WITNESS:	 		 	 ENCANA OIL & GAS (USA) INC.
 OPERATOR

				
	 	 		 	By	 	 
	 	 		 		 	 Ricardo D. Gallegos
 VP,
Bus. Dev. – Negotiations
 & Lead Rockies & Intl. Land

				
		 		 	Date	 	 
			
	ATTEST OR WITNESS:	 		 	 NUCOR ENERGY HOLDINGS INC.
 NON-OPERATOR

				
	 	 		 	By	 	 
				
	 	 		 		 	
				
		 		 	Date	 	 

  
 -2-

 AAPL – FORM 610RS – 1989 
  

 ACKNOWLEDGEMENTS 

 

			
	STATE OF COLORADO	 	§
		 	§
	CITY AND COUNTY OF DENVER	 	§

 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. 
 GIVEN UNDER MY HAND AND
OFFICIAL SEAL OF OFFICE on this 1st day of November, 2012.

  

					
	MY COMMISSION EXPIRES:	 		  	
			
	 	 		  	 
		 		  	Notary Public in and for the State of Colorado

  

			
	STATE OF                     	 	§
		 	§
	COUNTY OF                     	 	§

 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. 
 GIVEN UNDER MY HAND AND OFFICIAL SEAL OF OFFICE on this 1st day of November, 2012 
  

					
	MY COMMISSION EXPIRES:	 		  	
			
	 	 		  	 
		 		  	Notary Public

  
 -3-

 EXHIBIT A 
 Attached to and made a part of that certain Model Form Recording Supplement to Operating Agreement and Financing Statement executed October 31, 2012 but dated effective November 1, 2012, by and
between EnCana Oil & Gas (USA) Inc. and Nucor Energy Holdings Inc. 
  

	I.	 	DESCRIPTION OF CARRY WELLS AND HEAD’S UP WELLS SUBJECT TO THIS AGREEMENT 

Carry Wells and Head’s Up Wells drilled pursuant to the BJU Carry and Earning Agreement dated effective November 1, 2012 and
Operating Agreement dated effective November 1, 2012 between the Parties in the following described sections: 

Garfield County, Colorado 
 [***] 
 Rio Blanco County, Colorado 

[***] 
  

	II.	 	RESTRICTIONS AS TO DEPTHS, FORMATIONS, PREVIOUSLY EXISTING WELLS AND SUBSTANCES 

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. 

 Article XVI. Other Provisions 

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. 
 A. Other Provisions. This Article XVI Other Provisions is
attached to and made a part of that certain Operating Agreement (this “Agreement”) executed October 31, 2012 but effective November 1, 2012, by and between Encana Oil & Gas (USA) Inc. and Nucor Energy Holdings Inc. In
the event of a conflict between the terms and conditions of this Article XVI and the terms and conditions of this Agreement, the terms and conditions of this Article XVI shall control and govern the point in conflict. 

B. BJU Carry and Earning Agreement. This Agreement is subject to and burdened by the terms and conditions of that certain BJU Carry and
Earning Agreement executed October 31, 2012 but effective November 1, 2012, between Encana Oil & Gas (USA) Inc. and Nucor Energy Holdings Inc. (the “BJU Carry and Earning Agreement”). Except as otherwise defined herein,
all capitalized terms shall have the meaning assigned to them in the BJU Carry and Earning Agreement. In the event of a conflict between the terms and conditions hereof and the terms and conditions of the BJU Carry and Earning Agreement:
(i) during the term of the BJU Carry and Earning Agreement only, the terms and conditions of the BJU Carry and Earning Agreement shall control and govern the point in conflict; and (ii) after the expiration of the term of the BJU Carry and
Earning Agreement, the terms and conditions of this Agreement shall control and govern the point in conflict. 
 C. Conflicts. If
any of the Carry Wells or Head’s Up Wells are subject to an existing operating agreement with a third party, such existing operating agreement shall control as to such third party. However, as between Nucor and Encana, this Agreement and the
BJU Carry and Earning Agreement shall control. In the event of any conflict or inconsistency between the terms of this Agreement and the BJU Carry and Earning Agreement, the BJU Carry and Earning Agreement shall prevail to the extent of such
conflict. If Nucor and/or Encana acquire the entire interest covered by an existing third party operating agreement, then such third party agreement shall be superseded and replaced in its entirety by this Agreement. Carry Wells and Head’s Up
Wells shall be designated under the BJU Carry and Earning Agreement. The Parties intend that this Agreement shall govern a Party’s election to participate in subsequent operations on the Carry Wells. Head’s Up Wells shall be proposed under
the provisions of this Agreement, as modified by the provisions of Section 2.4 of the BJU Carry and Earning Agreement. Carry Wells and Head’s Up Wells are defined in the BJU Carry and Earning Agreement. 

D. Burdens. Notwithstanding anything in Article III.B and C of this Agreement to the contrary, with respect to the Carry Wells and
Head’s Up Wells, the burdens on the production shall be equal to and shall not exceed those in existence on the effective date of the BJU Carry and Earning Agreement; provided, however, that Nucor’s interest in Carry Wells and Head’s
Up Wells shall be subject to no overriding royalties or other burdens on production owned by Encana or its Affiliates other than those shown on Schedule 5.2 to the BJU Carry and Earning Agreement and other than the royalty provided for in
Section 2.1 H.(iv) of the BJU Carry and 

 
Earning Agreement. If any Party receives acreage support for such Carry and/or Head’s Up Well from a third party, the burdens shall include any burdens reserved by such third party, but the
Party receiving such acreage support shall not reserve any additional burdens to itself burdening such acreage support. 
 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, that any mineral interest owned
by Encana that is not subject to a lease will be subject to a royalty payable to Encana of 16.67%. Subject to the foregoing sentence, Encana shall make payment of all burdens affecting the Carry Wells and Head’s Up Wells, and Nucor shall
reimburse Encana for all burdens on the interest of Nucor. 
 E. Operations. Notwithstanding anything in Article V.B of this
Agreement to the contrary, if the Operator of the Carry and/or Head’s Up Wells sells, assigns or otherwise transfers its interest in the Carry and/or Head’s Up Wells, such Operator’s successor-in-interest to the Carry Wells and
Head’s Up Wells shall have the right to vote for itself and elect itself as successor Operator of the Carry Wells and Head’s Up Wells. 
 F. Definitions. “Reworked” or “reworking”, as used in this Agreement, shall include perforating, cleaning out, acidizing, fracturing, testing, completing (in the same
horizon or in a deeper or shallower horizon), plugging back or any other operation for the purpose of restoring or increasing production which does not involve the drilling of an additional hole. In each instance in Articles VI.B. and VI.C. in which
the term “deepen”, “deeper drilling” or “deepening” are used, the same shall also mean “deepen, sidetrack”, “deepened, sidetracked”, or “deeper drilling, sidetracking” and “deepening,
sidetracking”. 
 G. Well Requirements and Information Operator agrees to furnish information to participating
Non-Operator on a current basis, including but not limited to daily drilling reports, test reports, logs and all other related reports and data. Non-Operator has furnished Operator a list of geological requirements and information that Non-Operator
requires, and such requirements and information are attached hereto as Exhibit H.  
 H. Royalties, Overriding Royalties And Other
Payments. Operator shall use its reasonable best effort to pay or cause to be paid all royalties, shut-in royalties, minimum royalties, overriding royalties, payments out of production, or other amounts or charges which may be or become
payable out of production and shall charge all such payments to the account of the Party or Parties responsible therefor. However, Operator shall never be liable for a standard of performance in making such payment or payments in excess of a
reasonable good faith effort to pay same prior to the due date; and no liability is to be incurred for the failure to make payment within the time, in the manner and for the amounts due through error or omission of the employees or representatives
of Operator. 
 I. Shut-in Production. Operator shall not shut-in Non-Operator’s share of production from any Carry Well or a
Head’s Up Well for a period of more than 90 days or due solely to market conditions without Non-Operator’s consent. 

 J. Revision to Article V.D.: Rights and Duties of Operator. Competitive Rates and Use of
Affiliates: All wells drilled on the Contract Area shall be drilled on a competitive basis at the prevailing market rate for such operations as would be charged by a Third Party contractor in a bona fide arm’s length transaction. If it so
desires, Operator has the right to provide materials, equipment and services, either directly or indirectly or through Operator, or an affiliate of Operator, or a third party whose equipment was funded by the Operator or an Affiliate so long as the
rates charged by Operator or any such Affiliate do not exceed the prevailing market rates in the area for comparable services and/or equipment as would be charged by a Third Party contractor in a bona fide arm’s length transaction. Such work
shall be performed by Operator under the same terms and conditions as are customary and usual in the area. 
 K. Mutuality.
The Parties hereto acknowledge and declare that this Agreement is the result of extensive negotiations between themselves. Accordingly, in the event of any ambiguity in this Agreement, there shall be no presumption that this instrument was
prepared solely by either Party hereto. 
 L. Headings. The heading of the several articles and sections of this Agreement
are for convenience only, and shall not control or affect the meaning or construction of the terms and provisions hereof. 
 M. Notice Of
Recording Supplement. The Parties hereto agree to execute a Recording Supplement in substantially the form attached hereto as Exhibit I to give notice of this Agreement to third parties, and to further create, secure, and perfect the liens
and security interests provided by Article VII B. Such Notice may be filed of record at any time by any Party hereto. The Parties may execute additional Recording Supplements in order to accurately reflect the current properties covered by the
Operating Agreement and the current working interests of the Parties. 
 N. Dispute Resolution. The Parties agree to resolve all
disputes concerning or relating to this Agreement pursuant to the provisions of this Section XVI N. 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 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. 
 O.
TLQ Expenses. Non-operator shall bear none of the capital costs for Operator’s Temporary Living Quarters (“TLQ”) located adjacent to the Big Jimmy Unit, but Non-operator shall bear its pro rata share of TLQ operating
expenses, including, without limitation, electricity, gas, water, maintenance, food, staff and insurance. 
 P. Water Disposal. If
disposal of Nucor’s share of water used for Completion Operations or produced from the Contract Area (“Nucor Water”) is required, Nucor shall pay its share of the costs of such disposal, including, but not limited to, transportation
costs. If there is excess Nucor Water that is released from any dedication made by Nucor for disposal services, and Operator has sufficient capacity on the water facilities owned or leased by Operator (including, but not limited to, Operator’s
water facility at the Middle Fork Station and disposal wells owned or leased by Operator), then Operator shall dispose of Nucor Water in such facilities; provided, however, that Operator shall have no obligation to dispose of Nucor Water pro rata
with any other water disposed of by Operator. If Operator disposes of Nucor Water by injection into a disposal well owned or leased by Operator, Nucor shall pay actual operating costs to transport and dispose of such Nucor Water, including, but not
limited to, disposal fees, surface owner injection fees, and water treatment costs, plus $0.15 per bbl. In lieu of disposal of Nucor Water, Operator may, but shall not have any obligation to, use Nucor Water for completion operations for wells in
which Nucor does not have an interest, and in such case, Nucor shall not be required to pay any operating costs to transport or dispose of such water nor the $0.15 per bbl injection fee. Beginning on January 1, 2014, and every year thereafter
on such date, the $0.15 per bbl injection fee shall be adjusted by the percentage increase or decrease, if any, in the Consumer Price Index for All Urban Consumers (“CPI-U”) between the immediately preceding December and the previous
December; provided, however the injection fee shall never be less than $0.15. The percentage adjustment shall be calculated based upon the difference between the most recent calendar year and the previous calendar year, as published in the U.S.
Department of Labor, Bureau of Labor Statistics. If the CPI-U ceases to be published, the parties shall use commercially reasonable efforts to negotiate a replacement index. The provisions of this paragraph are not intended to modify the provisions
of the BJU Carry and Earning Agreement with respect to Nucor’s obligation to pay the Nucor Cost Share. 
 END OF ARTICLE
XVI 

 Schedule 2.2 A 
 [***] 
 [***] This confidential information has been omitted and filed separately with the
Securities and Exchange Commission pursuant to a request for confidential treatment. 

 Schedule 5.2 
 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. 
  

																	
	Agreement Number	  	Agreement Name	  	Effective
Date	  	Legal Description	  	Encana’s
ORRI	  	Encana’s RI
	 12987.000
	  	 USA COC 64805
	  	6/1/2001	  	 [***] 
	  	 	 	0.00000000	  	  	 	 	0.00000000	  
						
	 12988.000
	  	 USA COC 64806
	  	6/1/2001	  	 [***] 
	  	 	 	0.00000000	  	  	 	 	0.00000000	  
						
	 12989.000
	  	 USA COC 64815
	  	6/1/2001	  	 [***] 
	  	 	 	0.00000000	  	  	 	 	0.00000000	  
						
	 12989.000
	  	 USA COC 64815
	  	6/1/2001	  	 [***] 
	  	 	 	0.00000000	  	  	 	 	0.00000000	  
						
	 12989.000
	  	 USA COC 64815
	  	6/1/2001	  	 [***] 
	  	 	 	0.00000000	  	  	 	 	0.00000000	  
						
	 12990.000
	  	 USA COC 64804
	  	6/1/2001	  	 [***] 
	  	 	 	0.00000000	  	  	 	 	0.00000000	  
						
	 12992.000
	  	 USA COC 64836
	  	6/1/2001	  	 [***] 
	  	 	 	0.00000000	  	  	 	 	0.00000000	  
						
	 12992.000
	  	 USA COC 64836
	  	6/1/2001	  	 [***]
	  	 	 	0.00000000	  	  	 	 	0.00000000	  
						
	 12995.000
	  	 USA COC 64835
	  	6/1/2001	  	 [***] 
	  	 	 	0.00000000	  	  	 	 	0.00000000	  
						
	 12996.000
	  	 USA COC 64807
	  	6/1/2001	  	 [***] 
	  	 	 	0.00000000	  	  	 	 	0.00000000	  
						
	 12997.000
	  	 USA COC 64814
	  	6/1/2001	  	 [***] 
	  	 	 	0.00000000	  	  	 	 	0.00000000	  
						
	 12997.000
	  	 USA COC 64814
	  	6/1/2001	  	 [***] 
	  	 	 	0.00000000	  	  	 	 	0.00000000	  
						
	 12997.000
	  	 USA COC 64814
	  	6/1/2001	  	 [***] 
	  	 	 	0.00000000	  	  	 	 	0.00000000	  
						
	 12997.000
	  	 USA COC 64814
	  	6/1/2001	  	 [***] 
	  	 	 	0.00000000	  	  	 	 	0.00000000	  
						
	 12997.000
	  	 USA COC 64814
	  	6/1/2001	  	 [***] 
	  	 	 	0.00000000	  	  	 	 	0.00000000	  

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

  
 Page 1 of 9

 Schedule 5.2 
 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. 
  

																	
	Agreement Number	  	Agreement Name	  	Effective
Date	  	Legal Description	  	Encana’s
ORRI	  	Encana’s RI
	 12997.000
	  	 USA COC 64814
	  	6/1/2001	  	 [***]
	  	 	 	0.00000000	  	  	 	 	0.00000000	  
						
	 12998.000
	  	 USA COC 64834
	  	6/1/2001	  	 [***]
	  	 	 	0.00000000	  	  	 	 	0.00000000	  
						
	 12998.000
	  	 USA COC 64834
	  	6/1/2001	  	 [***]
	  	 	 	0.00000000	  	  	 	 	0.00000000	  
						
	 12999.000
	  	 USA COC 64820
	  	6/1/2001	  	 [***]
	  	 	 	0.00000000	  	  	 	 	0.00000000	  
						
	 13000.000
	  	 USA COC 64821
	  	6/1/2001	  	 [***]
	  	 	 	0.00000000	  	  	 	 	0.00000000	  
						
	 13410.000
	  	 USA COC 65563
	  	12/1/2001	  	 [***]
	  	 	 	0.00000000	  	  	 	 	0.00000000	  
						
	 13410.000
	  	 USA COC 65563
	  	12/1/2001	  	 [***]
	  	 	 	0.00000000	  	  	 	 	0.00000000	  
						
	 13411.000
	  	 USA COC 65557
	  	12/1/2001	  	 [***]
	  	 	 	0.00000000	  	  	 	 	0.00000000	  
						
	 13411.000
	  	 USA COC 65557
	  	12/1/2001	  	 [***]
	  	 	 	0.00000000	  	  	 	 	0.00000000	  
						
	 13412.000
	  	 USA COC 65556
	  	12/1/2001	  	 [***]
	  	 	 	0.00000000	  	  	 	 	0.00000000	  
						
	 13412.000
	  	 USA COC 65556
	  	12/1/2001	  	 [***]
	  	 	 	0.00000000	  	  	 	 	0.00000000	  
						
	 13413.000
	  	 USA COC 65555
	  	12/1/2001	  	 [***]
	  	 	 	0.00000000	  	  	 	 	0.00000000	  
						
	 13413.000
	  	 USA COC 65555
	  	12/1/2001	  	 [***]
	  	 	 	0.00000000	  	  	 	 	0.00000000	  
						
	 13413.000
	  	 USA COC 65555
	  	12/1/2001	  	 [***]
	  	 	 	0.00000000	  	  	 	 	0.00000000	  
						
	 13413.000
	  	 USA COC 65555
	  	12/1/2001	  	 [***]
	  	 	 	0.00000000	  	  	 	 	0.00000000	  
						
	 13414.000
	  	 USA COC 65574
	  	12/1/2001	  	 [***]
	  	 	 	0.00000000	  	  	 	 	0.00000000	  
						
	 13415.000
	  	 USA COC 65573
	  	12/1/2001	  	 [***]
	  	 	 	0.00000000	  	  	 	 	0.00000000	  

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

  
 Page 2 of 9

 Schedule 5.2 
 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. 
  

																	
	Agreement Number	  	Agreement Name	  	Effective
Date	  	Legal Description	  	Encana’s
ORRI	  	Encana’s RI
	 13416.000
	  	 USA COC 65571
	  	12/1/2001	  	 [***]
	  	 	 	0.00000000	  	  	 	 	0.00000000	  
						
	 13417.000
	  	 USA COC 65570
	  	12/1/2001	  	 [***]
	  	 	 	0.00000000	  	  	 	 	0.00000000	  
						
	 13418.000
	  	 USA COC 65569
	  	12/1/2001	  	 [***]
	  	 	 	0.00000000	  	  	 	 	0.00000000	  
						
	 13419.000
	  	 USA COC 65568
	  	12/1/2001	  	 [***]
	  	 	 	0.00000000	  	  	 	 	0.00000000	  
						
	 13422.000
	  	 USA COC 65565
	  	12/1/2001	  	 [***]
	  	 	 	0.00000000	  	  	 	 	0.00000000	  
						
	 13423.000
	  	 USA COC 65564
	  	12/1/2001	  	 [***]
	  	 	 	0.00000000	  	  	 	 	0.00000000	  
						
	 13424.000
	  	 USA COC 65562
	  	12/1/2001	  	 [***]
	  	 	 	0.00000000	  	  	 	 	0.00000000	  
						
	 13425.000
	  	 USA COC 65561
	  	12/1/2001	  	 [***]
	  	 	 	0.00000000	  	  	 	 	0.00000000	  
						
	 13426.000
	  	 USA COC 65559
	  	12/1/2001	  	 [***]
	  	 	 	0.00000000	  	  	 	 	0.00000000	  
						
	 13426.000
	  	 USA COC 65559
	  	12/1/2001	  	 [***]
	  	 	 	0.00000000	  	  	 	 	0.00000000	  
						
	 13432.000
	  	 USA COC 65771
	  	4/1/2002	  	 [***]
	  	 	 	0.00000000	  	  	 	 	0.00000000	  
						
	 13432.000
	  	 USA COC 65771
	  	4/1/2002	  	 [***]
	  	 	 	0.00000000	  	  	 	 	0.00000000	  

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

  
 Page 3 of 9

 Schedule 5.2 
 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. 
  

																	
	Agreement Number	  	Agreement Name	  	Effective
Date	  	Legal Description	  	Encana’s
ORRI	  	Encana’s RI
	 14802.000
	  	 USA COC 56835
	  	9/1/1994	  	 [***]
	  	 	 	0.00000000	  	  	 	 	0.00000000	  
						
	 14802.000
	  	 USA COC 56835
	  	9/1/1994	  	 [***]
	  	 	 	0.00000000	  	  	 	 	0.00000000	  
						
	 14802.000
	  	 USA COC 56835
	  	9/1/1994	  	 [***]
	  	 	 	0.00000000	  	  	 	 	0.00000000	  
						
	 14806.000
	  	 USA COC 56834
	  	11/1/1994	  	 [***]
	  	 	 	0.00000000	  	  	 	 	0.00000000	  
						
	 15002.000
	  	 USA COC 64833
	  	6/1/2001	  	 [***]
	  	 	 	0.00000000	  	  	 	 	0.00000000	  
						
	 15002.000
	  	 USA COC 64833
	  	6/1/2001	  	 [***]
	  	 	 	0.00000000	  	  	 	 	0.00000000	  
						
	 15084.000
	  	 USA COC 60751
	  	10/1/1997	  	 [***]
	  	 	 	0.00000000	  	  	 	 	0.00000000	  
						
	 15085.000
	  	 USA COC 60752
	  	10/1/1997	  	 [***]
	  	 	 	0.00000000	  	  	 	 	0.00000000	  
						
	 15085.000
	  	 USA COC 60752
	  	10/1/1997	  	 [***]
	  	 	 	0.00000000	  	  	 	 	0.00000000	  
						
	 15085.000
	  	 USA COC 60752
	  	10/1/1997	  	 [***]
	  	 	 	0.00000000	  	  	 	 	0.00000000	  
						
	 15283.000
	  	 USA COC 58684
	  	9/1/1997	  	 [***]
	  	 	 	0.00000000	  	  	 	 	0.00000000	  
						
	 15283.000
	  	 USA COC 58684
	  	9/1/1997	  	 [***]
	  	 	 	0.00000000	  	  	 	 	0.00000000	  
						
	 15283.000
	  	 USA COC 58684
	  	9/1/1997	  	 [***]
	  	 	 	0.00000000	  	  	 	 	0.00000000	  
						
	 15619.000
	  	 EXXON MOBIL

CORPORATION
	  	11/1/2002	  	 [***]
	  	 	 	0.00000000	  	  	 	 	0.00000000	  
						
	 15619.000
	  	 EXXON MOBIL

CORPORATION
	  	11/1/2002	  	 [***]
	  	 	 	0.00000000	  	  	 	 	0.00000000	  
						
	 15619.000
	  	 EXXON MOBIL

CORPORATION
	  	11/1/2002	  	 [***]
	  	 	 	0.00000000	  	  	 	 	0.00000000	  
						
	 23513.000
	  	 USA COC 64832
	  	6/1/2001	  	 [***]
	  	 	 	0.00000000	  	  	 	 	0.00000000	  

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

  
 Page 4 of 9

 Schedule 5.2 
 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. 
  

																	
	Agreement Number	  	Agreement Name	  	Effective
Date	  	Legal Description	  	Encana’s
ORRI	  	Encana’s RI
	 23521.000
	  	 USA COC 66587
	  	3/1/2003	  	 [***]
	  	 	 	0.00000000	  	  	 	 	0.00000000	  
						
	 23549.000
	  	 USA COC 66809
	  	6/1/2001	  	 [***]
	  	 	 	0.00000000	  	  	 	 	0.00000000	  
						
	 23552.000
	  	 USA COC 57683
	  	3/1/1995	  	 [***]
	  	 	 	0.00000000	  	  	 	 	0.00000000	  
						
	 23553.000
	  	 USA COC 57685
	  	3/1/1995	  	 [***]
	  	 	 	0.00000000	  	  	 	 	0.00000000	  
						
	 23553.000
	  	 USA COC 57685
	  	3/1/1995	  	 [***]
	  	 	 	0.00000000	  	  	 	 	0.00000000	  
						
	 23554.000
	  	 USA COC 50268
	  	11/1/1989	  	 [***]
	  	 	 	0.00250000	  	  	 	 	0.00000000	  
						
	 23554.000
	  	 USA COC 50268
	  	11/1/1989	  	 [***]
	  	 	 	0.00250000	  	  	 	 	0.00000000	  
						
	 23554.000
	  	 USA COC 50268
	  	11/1/1989	  	 [***]
	  	 	 	0.00250000	  	  	 	 	0.00000000	  
						
	 23554.000
	  	 USA COC 50268
	  	11/1/1989	  	 [***]
	  	 	 	0.00250000	  	  	 	 	0.00000000	  
						
	 23554.000
	  	 USA COC 50268
	  	11/1/1989	  	 [***]
	  	 	 	0.00250000	  	  	 	 	0.00000000	  
						
	 23555.000
	  	 USA COC 56828
	  	11/1/1994	  	 [***]
	  	 	 	0.02750001	  	  	 	 	0.00000000	  
						
	 23559.000
	  	 USA COC 65560
	  	12/1/2001	  	 [***]
	  	 	 	0.02750001	  	  	 	 	0.00000000	  
						
	 23608.000
	  	 USA COC 50950
	  	2/1/1990	  	 [***]
	  	 	 	0.02750001	  	  	 	 	0.00000000	  
						
	 23608.000
	  	 USA COC 50950
	  	2/1/1990	  	 [***]
	  	 	 	0.02750001	  	  	 	 	0.00000000	  
						
	 23609.000
	  	 USA COC 57687
	  	3/1/1995	  	 [***]
	  	 	 	0.02750001	  	  	 	 	0.00000000	  

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

  
 Page 5 of 9

 Schedule 5.2 
 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. 
  

																	
	Agreement Number	  	Agreement Name	  	Effective
Date	  	Legal Description	  	Encana’s
ORRI	  	Encana’s RI
	 23609.000
	  	 USA COC 57687
	  	3/1/1995	  	 [***]
	  	 	 	0.02750001	  	  	 	 	0.00000000	  
						
	 23610.000
	  	 USA COC 61717
	  	6/1/1998	  	 [***]
	  	 	 	0.01096563	  	  	 	 	0.00000000	  
						
	 23610.000
	  	 USA COC 61717
	  	6/1/1998	  	 [***]
	  	 	 	0.01096563	  	  	 	 	0.00000000	  
						
	 23610.000
	  	 USA COC 61717
	  	6/1/1998	  	 [***]
	  	 	 	0.02750001	  	  	 	 	0.00000000	  
						
	 23611.000
	  	 USA COC 57965
	  	6/1/1995	  	 [***]
	  	 	 	0.01083302	  	  	 	 	0.00000000	  
						
	 23612.000
	  	 USA COC 57966
	  	6/1/1995	  	 [***]
	  	 	 	0.02750001	  	  	 	 	0.00000000	  
						
	 23612.000
	  	 USA COC 57966
	  	6/1/1995	  	 [***]
	  	 	 	0.02750001	  	  	 	 	0.00000000	  
						
	 23613.000
	  	 USA COC 57967
	  	6/1/1995	  	 [***]
	  	 	 	0.01083302	  	  	 	 	0.00000000	  
						
	 23614.000
	  	 USA COC 57969
	  	6/1/1995	  	 [***]
	  	 	 	0.01083302	  	  	 	 	0.00000000	  
						
	 23614.000
	  	 USA COC 57969
	  	6/1/1995	  	 [***]
	  	 	 	0.01083302	  	  	 	 	0.00000000	  
						
	 23615.000
	  	 USA COC 57970
	  	6/1/1995	  	 [***]
	  	 	 	0.01083302	  	  	 	 	0.00000000	  
						
	 23615.000
	  	 USA COC 57970
	  	6/1/1995	  	 [***]
	  	 	 	0.01083302	  	  	 	 	0.00000000	  
						
	 23616.000
	  	 USA COC 57972
	  	6/1/1995	  	 [***]
	  	 	 	0.01083302	  	  	 	 	0.00000000	  
						
	 23617.000
	  	 USA COC 57973
	  	6/1/1995	  	 [***]
	  	 	 	0.01083302	  	  	 	 	0.00000000	  
						
	 23618.000
	  	 USA COC 57975
	  	6/1/1995	  	 [***]
	  	 	 	0.01083302	  	  	 	 	0.00000000	  
						
	 23619.000
	  	 USA COC 57976
	  	6/1/1995	  	 [***] 
	  	 	 	0.01083302	  	  	 	 	0.00000000	  
						
	 23620.000
	  	 USA COC 59138
	  	6/1/1996	  	 [***] 
	  	 	 	0.01083302	  	  	 	 	0.00000000	  
						
	 23621.000
	  	 USA COC 50267
	  	9/1/1989	  	 [***] 
	  	 	 	0.01375000	  	  	 	 	0.00000000	  
						
	 23621.000
	  	 USA COC 50267
	  	9/1/1989	  	 [***] 
	  	 	 	0.00250000	  	  	 	 	0.00000000	  
						
	 23621.000
	  	 USA COC 50267
	  	9/1/1989	  	 [***] 
	  	 	 	0.00250000	  	  	 	 	0.00000000	  

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

  
 Page 6 of 9

 Schedule 5.2 
 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. 
  

																	
	Agreement Number	  	Agreement Name	  	Effective
Date	  	Legal Description	  	Encana’s
ORRI	  	Encana’s RI
	 23621.000
	  	 USA COC 50267
	  	9/1/1989	  	 [***] 
	  	 	 	0.00250000	  	  	 	 	0.00000000	  
						
	 23622.000
	  	 USA COC 56829
	  	9/1/1994	  	 [***] 
	  	 	 	0.02750001	  	  	 	 	0.00000000	  
						
	 23623.000
	  	 USA COC 60729
	  	10/1/1997	  	 [***] 
	  	 	 	0.01096563	  	  	 	 	0.00000000	  
						
	 23623.000
	  	 USA COC 60729
	  	10/1/1997	  	 [***] 
	  	 	 	0.01096563	  	  	 	 	0.00000000	  
						
	 23623.000
	  	 USA COC 60729
	  	10/1/1997	  	 [***] 
	  	 	 	0.02750001	  	  	 	 	0.00000000	  
						
	 23624.000
	  	 SHELL FRONTIER

OIL & GAS
	  	6/1/1998	  	 [***] 
	  	 	 	0.00666668	  	  	 	 	0.16666667	  
						
	 23624.000
	  	 SHELL FRONTIER

OIL & GAS
	  	6/1/1998	  	 [***]
	  	 	 	0.01083302	  	  	 	 	0.16666667	  
						
	 23624.000
	  	 SHELL FRONTIER

OIL & GAS
	  	6/1/1998	  	 [***]
	  	 	 	0.01083302	  	  	 	 	0.16666667	  
						
	 23624.000
	  	 SHELL FRONTIER

OIL & GAS
	  	6/1/1998	  	 [***]
	  	 	 	0.01083302	  	  	 	 	0.16666667	  
						
	 23624.000
	  	 SHELL FRONTIER

OIL & GAS
	  	6/1/1998	  	 [***]
	  	 	 	0.01083302	  	  	 	 	0.16666667	  
						
	 28301.000
	  	 USA COC 67779
	  	2/1/2005	  	 [***]
	  	 	 	0.00000000	  	  	 	 	0.00000000	  
						
	 28302.000
	  	 USA COC 67781
	  	2/1/2005	  	 [***]
	  	 	 	0.00000000	  	  	 	 	0.00000000	  
						
	 28303.000
	  	 USA COC 67780
	  	2/1/2005	  	 [***]
	  	 	 	0.00000000	  	  	 	 	0.00000000	  
						
	 28352.000
	  	 USA COC 61138
	  	1/1/1998	  	 [***]
	  	 	 	0.00000000	  	  	 	 	0.00000000	  
						
	 28352.000
	  	 USA COC 61138
	  	1/1/1998	  	 [***]
	  	 	 	0.00000000	  	  	 	 	0.00000000	  
						
	 28352.000
	  	 USA COC 61138
	  	1/1/1998	  	 [***]
	  	 	 	0.00000000	  	  	 	 	0.00000000	  

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

  
 Page 7 of 9

 Schedule 5.2 
 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. 
  

																	
	Agreement Number	  	Agreement Name	  	Effective
Date	  	Legal Description	  	Encana’s
ORRI	  	Encana’s RI
	 28353.000
	  	 USA COC 61137
	  	1/1/1998	  	 [***]
	  	 	 	0.00000000	  	  	 	 	0.00000000	  
						
	 28353.000
	  	 USA COC 61137
	  	1/1/1998	  	 [***]
	  	 	 	0.00000000	  	  	 	 	0.00000000	  
						
	 28354.000
	  	 USA COC 61136
	  	1/1/1998	  	 [***]
	  	 	 	0.00000000	  	  	 	 	0.00000000	  
						
	 28355.000
	  	 USA COC 61129
	  	1/1/1998	  	 [***]
	  	 	 	0.00000000	  	  	 	 	0.00000000	  
						
	 28356.000
	  	 USA COC 69620
	  	1/1/1998	  	 [***]
	  	 	 	0.00000000	  	  	 	 	0.00000000	  
						
	 28357.000
	  	 USA COC 61461
	  	4/1/1998	  	 [***]
	  	 	 	0.00000000	  	  	 	 	0.00000000	  
						
	 28358.000
	  	 USA COC 62562
	  	4/1/1999	  	 [***]
	  	 	 	0.00000000	  	  	 	 	0.00000000	  
						
	 28360.000
	  	 USA COC 68711
	  	12/1/2001	  	 [***]
	  	 	 	0.00000000	  	  	 	 	0.00000000	  
						
	 28369.000
	  	 USA COC 61460
	  	4/1/1998	  	 [***]
	  	 	 	0.00000000	  	  	 	 	0.00000000	  
						
	 28370.000
	  	 USA COC 61459
	  	4/1/1998	  	 [***]
	  	 	 	0.00000000	  	  	 	 	0.00000000	  
						
	 28373.000
	  	 USA COC 69557
	  	12/1/2001	  	 [***]
	  	 	 	0.00000000	  	  	 	 	0.00000000	  
						
	 28373.000
	  	 USA COC 69557
	  	12/1/2001	  	 [***]
	  	 	 	0.00000000	  	  	 	 	0.00000000	  
						
	 28374.000
	  	 USA COC 67295
	  	4/1/1978	  	 [***]
	  	 	 	0.07500000	  	  	 	 	0.00000000	  
						
	 28375.000
	  	 USA COC 60728
	  	10/1/1997	  	 [***]
	  	 	 	0.00000000	  	  	 	 	0.00000000	  
						
	 28376.000
	  	 USA COC 64819
	  	6/1/2001	  	 [***]
	  	 	 	0.00000000	  	  	 	 	0.00000000	  
						
	 28377.000
	  	 USA COC 62808
	  	6/1/1999	  	 [***]
	  	 	 	0.00000000	  	  	 	 	0.00000000	  
	 28378.000
	  	 USA COC 62803
	  	6/1/1999	  	 [***]
	  	 	 	0.00000000	  	  	 	 	0.00000000	  

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

  
 Page 8 of 9

 Schedule 5.2 
 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. 
  

																	
	Agreement Number	  	Agreement Name	  	Effective
Date	  	Legal Description	  	Encana’s
ORRI	  	Encana’s RI
	 28379.000
	  	 USA COC 60749
	  	10/1/1997	  	 [***]
	  	 	 	0.00000000	  	  	 	 	0.00000000	  
						
	 28380.000
	  	 USA COC 60727
	  	10/1/1997	  	 [***]
	  	 	 	0.00000000	  	  	 	 	0.00000000	  
						
	 28381.000
	  	 USA COC 63811
	  	6/1/1995	  	 [***]
	  	 	 	0.00000000	  	  	 	 	0.00000000	  
						
	 28386.000
	  	 EXXON MOBIL

CORPORATION
	  	9/1/2005	  	 [***]
	  	 	 	0.00000000	  	  	 	 	0.00000000	  
						
	 28386.000
	  	 EXXON MOBIL

CORPORATION
	  	9/1/2005	  	 [***]
	  	 	 	0.00000000	  	  	 	 	0.00000000	  
						
	 28388.000
	  	 USA COC 69590
	  	6/1/2001	  	 [***]
	  	 	 	0.00000000	  	  	 	 	0.00000000	  
						
	 28388.000
	  	 USA COC 69590
	  	6/1/2001	  	 [***]
	  	 	 	0.00000000	  	  	 	 	0.00000000	  
						
	 28432.000
	  	 USA COC 70653
	  	6/1/2001	  	 [***]
	  	 	 	0.00000000	  	  	 	 	0.00000000	  
						
	 28432.000
	  	 USA COC 70653
	  	6/1/2001	  	 [***]
	  	 	 	0.00000000	  	  	 	 	0.00000000	  
						
	 36115.000
	  	 USA COC 69593
	  	6/1/2001	  	 [***]
	  	 	 	0.00000000	  	  	 	 	0.00000000	  
						
	 36117.000
	  	 USA COC 70626
	  	1/1/1953	  	 [***]
	  	 	 	0.00000000	  	  	 	 	0.00000000	  
						
	 36230.000
	  	 EXXON MOBIL

CORPORATION
	  	9/1/2009	  	  
 [***]
	  	 	 	0.00000000	  	  	 	 	0.00000000	  

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

  
 Page 9 of 9EX-10.1

 Exhibit 10.1 

Agreement and Plan of Merger 
 AGREEMENT AND PLAN OF MERGER (this “Agreement”), dated as of February 28, 2013, by and among CENTURY PROPERTIES FUND XIX, LP, a Delaware limited partnership (“CPF
XIX”), AIMCO CPF XIX MERGER SUB LLC, a Delaware limited liability company (the “Aimco Subsidiary”), and AIMCO PROPERTIES, L.P., a Delaware limited partnership (“Aimco OP”). 

WHEREAS, Fox Partners II, the general partner of CPF XIX (“CPF XIX GP”), has determined that the Merger (as defined
below) of the Aimco Subsidiary with and into CPF XIX, with CPF XIX as the surviving entity, is advisable and in the best interests of CPF XIX and its partners; 
 WHEREAS, Aimco OP, the sole member of the Aimco Subsidiary, has determined that the Merger of the Aimco Subsidiary with and into CPF XIX, with CPF XIX as the surviving entity, is advisable and in the best
interests of the Aimco Subsidiary and its member; 
 WHEREAS, the Board of Directors of AIMCO-GP, Inc., the general partner of
Aimco OP (“AIMCO-GP”), has determined that the Merger of the Aimco Subsidiary with and into CPF XIX, with CPF XIX as the surviving entity, is advisable and in the best interests of Aimco OP and its partners; and 

WHEREAS, the parties desire to enter this Agreement to evidence the terms, provisions, representations, warranties, covenants and
conditions upon which the Merger will be consummated. 
 NOW, THEREFORE, in consideration of the mutual agreements and covenants
set forth herein, and for other good and valuable consideration, the adequacy, sufficiency, and receipt of which are hereby acknowledged, CPF XIX, the Aimco Subsidiary and Aimco OP hereby agree as follows: 

SECTION 1.    The Merger.    Subject to the terms and conditions set
forth herein, the Aimco Subsidiary shall be merged with and into CPF XIX (the “Merger”), and CPF XIX shall be the surviving entity of the Merger (the “Surviving Entity”). The Merger will have the effects specified
in this Agreement, section 17-211 of the Delaware Revised Uniform Limited Partnership Act, as amended (the “DRULPA”), and section 18-209 of the Delaware Limited Liability Company Act, as amended (the
“DLLCA”). 
 SECTION 2.    General
Partner.    CPF XIX GP will be the sole general partner of the Surviving Entity. 

SECTION 3.    Certificate.    As soon as practicable after the approval
of this Agreement by a majority in interest of limited partners of CPF XIX, CPF XIX shall cause to be filed a certificate of merger with respect to the Merger (the “Certificate of Merger”) with the Office of the Secretary of State
of the State of Delaware pursuant to 17-211 of the DRULPA and section 18-209 of the DLLCA. The Merger shall become effective at such time as the Certificate of Merger has been accepted for record by the Secretary of State of the State of
Delaware (the “Effective Time”). 
 SECTION 4.    Limited Partnership
Agreement.    The agreement of limited partnership of CPF XIX as in effect immediately prior to the consummation of the Merger (the “Partnership Agreement”), shall be the agreement of limited partnership of
the Surviving Entity until thereafter amended in accordance with the provisions thereof and applicable law. The general partner and each limited partner of the Surviving Entity shall have the rights under, be bound by and be subject to the terms and
conditions of, the Partnership Agreement, as a general partner or limited partner, as applicable. 

SECTION 5.    Treatment of Interests in CPF XIX. 

(a)    Limited Partners’ Interests.  

(i)  In connection with the Merger and in accordance with the procedures set forth in Section 5(a)(iii) of this Agreement,
each limited partnership unit of CPF XIX outstanding immediately prior to the Effective Time and held by limited partners of CPF XIX, except limited partnership units held by limited partners who have perfected their appraisal rights pursuant to
Exhibit A hereto, shall be converted into the right to receive, at the 

  
 1 

 
election of the limited partner, either (x) $364.65 in cash (the “Cash Consideration”) or (y) a number of partnership common units of Aimco OP calculated by dividing
$364.65 by the average closing price of Apartment Investment and Management Company common stock, as reported on the NYSE, over the ten consecutive trading days ending on the second trading day immediately prior to the Effective Time (the
“OP Unit Consideration,” and, together with the Cash Consideration, the “Merger Consideration”). 
 (ii)  Notwithstanding Section 5(a)(i) of this Agreement, if Aimco OP determines that the law of the state or other jurisdiction in which a limited partner resides would prohibit the
issuance of partnership common units of Aimco OP in that state or jurisdiction (or that the registration in that state or other jurisdiction would be prohibitively costly), then such limited partner will only be entitled to receive the Cash
Consideration for each limited partnership unit. 
 (iii)  Aimco OP shall prepare a form of election (the
“Election Form”) describing the Merger and pursuant to which each limited partner of CPF XIX will have the right to elect to receive either the Cash Consideration or the OP Unit Consideration (subject to Section 5(a)(ii)).
Aimco OP shall mail or cause to be mailed an Election Form to each limited partner, together with any other materials that Aimco OP determines to be necessary or prudent, no later than ten (10) days after the Effective Time. An election to
receive the Cash Consideration or the OP Unit Consideration shall be effective only if a properly executed Election Form is received by Aimco OP or its designees prior to 5:00 p.m., Eastern Time on the day that is thirty (30) days
after the mailing of such Election Form by Aimco OP. If a limited partner fails to return a duly completed Election Form within the time period specified in the Election Form, such holder shall be deemed to have elected to receive the Cash
Consideration. In addition, each limited partner that resides in a state or other jurisdiction that Aimco OP determines would prohibit the issuance of partnership common units of Aimco OP (or in which registration or qualification would be
prohibitively costly) will be deemed to have elected the Cash Consideration. CPF XIX, the Aimco Subsidiary and Aimco OP agree that limited partners shall have the right to revoke any election made in connection with the Merger at any time prior to
the expiration of the time period stated in the Election Form. Aimco OP and CPF XIX GP, by mutual agreement, shall have the right to make rules, not inconsistent with the terms of this Agreement, governing the validity of Election Forms and the
issuance and delivery of the Merger Consideration, as applicable. 
 (b)  General Partner’s
Interests.    Each general partnership interest of CPF XIX outstanding immediately prior to consummation of the Merger shall remain outstanding and unchanged, with all of the rights set forth in the Partnership Agreement.

 SECTION 6.    Treatment of Interests in Aimco
Subsidiary.    The entire membership interest in the Aimco Subsidiary immediately prior to the Effective Time shall be converted into 1,000 limited partnership units of the Surviving Entity. 

SECTION 7.  Appraisal Rights.    In connection with the Merger, the holders of
limited partnership units of CPF XIX immediately prior to the Merger shall have the appraisal rights set forth in Exhibit A hereto. 
 SECTION  8. Covenants.    Aimco OP agrees to pay for, or reimburse CPF XIX for, all expenses incurred by CPF XIX in connection with the Merger.
Aimco OP agrees to pay cash or issue and deliver common units of Aimco OP to the former holders of CPF XIX limited partnership units, in accordance with section 5(a) of this Agreement. 

SECTION 9.    Conditions to the Merger.  

(a)  The Merger shall not occur unless and until the Merger has been approved or consented to by a majority in interest of
limited partners of CPF XIX. 
 (b)  Notwithstanding any provisions of this Agreement to the contrary, none of the
parties hereto shall be required to consummate the transactions contemplated hereby if any third-party consent, authorization or approval that any of the parties hereto deem necessary or desirable in connection with this Agreement, or the
consummation of the transactions contemplated hereby, has not been obtained or received. 

SECTION 10.    Tax Treatment.    The parties hereto intend and agree
that, for Federal income tax purposes, (i) any payment of cash for limited partnership units of CPF XIX shall be treated as a sale of such limited 

  
 2 

 
partnership units by such holder and a purchase of such limited partnership units by Aimco OP for the cash so paid under the terms of this Agreement, and (ii) each such holder of limited
partnership units who accepts cash explicitly agrees and consents to such treatment. Furthermore, the parties hereto intend and agree that, for Federal income tax purposes, (i) any exchange of limited partnership units of CPF XIX for
partnership common units of Aimco OP under the terms of this Agreement shall be treated in accordance with Sections 721 and 731 of the Internal Revenue Code of 1986, as amended, and (ii) each such holder of limited partnership units of CPF
XIX who accepts partnership common units of Aimco OP explicitly agrees and consents to such treatment. Any cash and/or partnership common units of Aimco OP to which a holder of limited partnership units of CPF XIX is entitled pursuant to this
Agreement shall be paid only after the receipt of a consent from such holder that, for Federal income tax purposes, the receipt of cash and/or partnership common units of Aimco OP shall be treated as described in this Section 10. 

SECTION 11.    Further Assurances.    From time to time, as and when
required by the Surviving Entity or by its successors and assigns, there shall be executed and delivered on behalf of the Aimco Subsidiary such deeds and other instruments, and there shall be taken or caused to be taken by the Aimco Subsidiary all
such further actions, as shall be appropriate or necessary in order to vest, perfect or confirm, of record or otherwise, in the Surviving Entity the title to and possession of all property, interests, assets, rights, privileges, immunities, powers,
franchises and authority of the Aimco Subsidiary, and otherwise to carry out the purposes of this Agreement, and the officers and directors of CPF XIX GP are fully authorized in the name and on behalf of Aimco Subsidiary or otherwise to take any and
all such action and to execute and deliver any and all such deeds and other instruments. 

SECTION 12.    Amendment.    Subject to applicable law, this Agreement
may be amended, modified or supplemented by written agreement of the parties hereto at any time prior to the consummation of the Merger with respect to any of the terms contained herein. 

SECTION 13.    Abandonment.    At any time prior to consummation of the
Merger, this Agreement may be terminated and the Merger may be abandoned without liability to any party hereto by any of the Aimco Subsidiary, Aimco OP or CPF XIX, in each case, acting in its sole discretion and for any reason or for no reason,
notwithstanding approval of this Agreement by any of the members of the Aimco Subsidiary, the partners of CPF XIX or the general partner of Aimco OP. 
 SECTION 14.    Governing Law.    This Agreement shall be governed by and construed in accordance with the laws of the State of Delaware,
without reference to the conflict of law provisions thereof. 
 SECTION 15.    No
Third-Party Beneficiaries.    No provision of this Agreement is intended to confer upon any person, entity, or organization other than the parties hereto any rights or remedies hereunder, other than the appraisal rights given
to holders of limited partnership units of CPF XIX pursuant to Section 7 of this Agreement. 
 [Signatures appear
on following page.] 

  
 3 

 IN WITNESS WHEREOF, CPF XIX, the Aimco Subsidiary and Aimco OP have caused this
Agreement to be signed by their respective duly authorized officers as of the date first written above. 
  

			
	CENTURY PROPERTIES FUND XIX, LP
		
	By:	 	 Fox Partners II,

		 	 its General Partner

  

			
	By:	 	 Fox Capital Management Corporation,

		 	 its Managing General Partner

  

			
	 By:
	 	/s/ John Bezzant
		 	 Name: John Bezzant

		 	 Title: Executive Vice President

  

			
	AIMCO CPF XIX MERGER SUB LLC
		
	By:	 	 Aimco Properties, L.P.,

		 	 its sole Member

  

			
	By:	 	 AIMCO-GP, Inc.

		 	 its General Partner

  

			
	 By:
	 	/s/ John Bezzant
		 	 Name: John Bezzant

		 	 Title: Executive Vice President

  

			
	AIMCO PROPERTIES, L.P.
		
	By:	 	 AIMCO-GP, Inc.,

		 	 its General Partner

  

			
	 By:
	 	/s/ John Bezzant
		 	 Name: John Bezzant

		 	 Title: Executive Vice President

  
 4 

 EXHIBIT A 

Appraisal Rights of Limited Partners 
 Capitalized terms used but not defined herein shall have the respective meanings ascribed thereto in the Agreement and Plan of Merger, dated as of February 28, 2013 (the “Merger
Agreement”), by and among Century Properties Fund XIX, a Delaware limited partnership (“CPF XIX”), AIMCO CPF XIX Merger Sub LLC, a Delaware limited liability company (the “Aimco Subsidiary”), and AIMCO
Properties, L.P., a Delaware limited partnership (“Aimco OP”). In connection with the Merger, limited partners of CPF XIX shall have the following appraisal rights: 

(a)  Any limited partner who holds limited partnership units on the effective date of the Merger who has not
consented to the merger (the “Nonconsenting Limited Partners”) and who has otherwise complied with paragraph (b) hereof shall be entitled to an appraisal by arbitration of the fair value of the Nonconsenting Limited
Partner’s limited partnership units. This arbitration shall be conducted in Denver, Colorado, in accordance with the Commercial Arbitration Rules of the American Arbitration Association (“AAA”), excluding the Procedures for
Large, Complex Commercial Disputes, by a single arbitrator selected by Aimco OP from a panel of AAA arbitrators who are qualified to value investment interests in commercial real estate. Any action for judicial review or enforcement of the
arbitration award shall be brought in a court of competent jurisdiction located in Denver, Colorado. 

(b)  Within 10 days after the effective date of the Merger, Aimco OP shall notify each of the Nonconsenting
Limited Partners of the consummation of the Merger, the effective date of the Merger and that appraisal rights are available for any or all limited partnership units held by Nonconsenting Limited Partners, and shall include in such notice a copy of
this Exhibit A. Such notice shall include an Election Form pursuant to which Nonconsenting Limited Partners may elect an appraisal by arbitration of the fair value of their limited partnership units pursuant to paragraph (a) hereof. Any
limited partner who holds limited partnership units on the effective date of the Merger and who has not consented to the Merger shall be entitled to receive such notice and may, within 30 days after the date of mailing of such notice (such 30th
day being the “Election Deadline”), demand from Aimco OP the appraisal of his or her limited partnership units by making the appropriate election in the Election Form in accordance with the instructions thereto. Each completed
Election Form must be delivered to the address, and within the time period, specified in the instructions to the Election Form. If a Nonconsenting Limited Partner fails to properly complete an Election Form or return it to the correct address within
the specified time period, such Nonconsenting Limited Partner shall be deemed to have elected not to seek an appraisal of his or her limited partnership units, and will be deemed to have elected the Cash Consideration. 

(c)  At any time prior to the Election Deadline, any Nonconsenting Limited Partner who has made a demand for
appraisal of his or her limited partnership units shall have the right to withdraw his or her demand for appraisal and to accept the Cash Consideration payable pursuant to the Merger Agreement. Nonconsenting Limited Partners who wish to withdraw
their demands must do so in writing delivered to Aimco Properties, L.P., c/o Eagle Rock Proxy Advisors, LLC, by mail at 12 Commerce Drive, Cranford, New Jersey 07016, or by fax at (908) 497-2349. At any time within 20 days after the
Election Deadline, any Nonconsenting Limited Partner who has complied with the requirements of subsections (a) and (b) hereof, upon written request, shall be entitled to receive from Aimco OP a statement setting forth the aggregate number
of limited partnership units with respect to which Nonconsenting Limited Partners have made demands for appraisal and the aggregate number of holders of such limited partnership units. Such written statement shall be mailed to the Nonconsenting
Limited Partner within 10 days after such Nonconsenting Limited Partner’s written request for such a statement is received by Aimco OP or within 20 days after the Election Deadline, whichever is later. 

(d)  Upon the submission of any such demand by a Nonconsenting Limited Partner, Aimco OP shall, within
40 days after the Election Deadline, submit to the arbitrator a duly verified list containing the names and addresses of all Nonconsenting Limited Partners who have demanded payment for their limited partnership units and with whom agreements
as to the value of their limited partnership units have not been 

  
 5 

 
reached with Aimco OP. The arbitrator shall give notice of the time and place fixed for the hearing of such demand by registered or certified mail to Aimco OP and to the Nonconsenting Limited
Partners shown on the list at the addresses therein stated. The forms of the notices shall be approved by the arbitrator, and the costs of the preparation and mailing thereof shall be borne by Aimco OP. 

(e)  At the hearing on such demand, the arbitrator shall determine as to each of the Nonconsenting Limited
Partners whether the Nonconsenting Limited Partner is entitled to appraisal rights hereunder. 

(f)  After determining the Nonconsenting Limited Partners entitled to an appraisal, the arbitrator shall
appraise such Nonconsenting Limited Partners’ limited partnership units, determining their fair value, as of the date of the Merger, exclusive of any element of value arising from the accomplishment or expectation of the Merger, together with
interest, if any, to be paid upon the amount determined to be the fair value. In determining such fair value, the arbitrator shall take into account all factors relevant to the issue of fair value of the limited partnership units, using the legal
standard of fair value that would apply if the Nonconsenting Limited Partner were a stockholder in a corporation entitled to appraisal rights as a result of a corporate merger under the corporation laws of the state of Delaware. Unless the
arbitrator in his or her discretion determines otherwise for good cause shown, interest from the effective date of the Merger through the date of payment of the judgment shall be compounded quarterly and shall accrue at 5% over the Federal Reserve
discount rate (including any surcharge), as established from time to time during the period between the effective date of the Merger and the date of payment of the judgment. Upon application by Aimco OP or by any Nonconsenting Limited Partner
entitled to participate in the appraisal proceeding, the arbitrator may, in his or her discretion, proceed with the appraisal prior to the final determination of the Nonconsenting Limited Partners’ entitlement to appraisal rights hereunder. Any
Nonconsenting Limited Partner whose name appears on the list submitted by Aimco OP pursuant to paragraph (d) hereof may participate fully in all proceedings until it is finally determined that such Nonconsenting Limited Partner is not entitled
to appraisal rights hereunder. 
 (g)  The arbitrator shall direct the payment of the fair value of the
limited partnership units (which will be paid only in cash), together with interest, if any, by Aimco OP to the Nonconsenting Limited Partners entitled thereto. Payment shall be so made to each such Nonconsenting Limited Partner upon the receipt by
Aimco OP of the written consent from such Nonconsenting Limited Partner that, for federal income tax purposes, the issuance of cash for the limited partnership units shall be treated as a sale of the limited partnership units by the owner and a
purchase of such limited partnership units by Aimco OP for the cash consideration so paid under the terms of the Merger Agreement. 
 (h)  The costs of the proceeding may be determined by the arbitrator and taxed upon the parties as the arbitrator deems equitable in the circumstances. Upon application of a Nonconsenting
Limited Partner, the arbitrator may order all or a portion of the expenses incurred by any Nonconsenting Limited Partner in connection with the appraisal proceeding, including, without limitation, reasonable attorney’s fees and the fees and
expenses of experts, to be charged pro rata against the value of all the interests entitled to an appraisal. 

(i)  Any Nonconsenting Limited Partner who has made a demand for appraisal of his or her limited partnership
units and who has not withdrawn the demand before the Election Deadline shall be deemed to have entered into a binding contract with Aimco OP to accept the fair value awarded by the arbitrator in exchange for his or her limited partnership units,
plus any interest as provided herein. The award of fair value, plus any interest, to the Nonconsenting Limited Partners shall be exclusive of and in lieu of any other right, claim or remedy under state or federal law that the Nonconsenting Limited
Partner may have with respect to his or her limited partnership units whether under the Merger Agreement or otherwise and whether against CPF XIX, CPF XIX GP, Aimco-GP, Apartment Investment and Management Company, Aimco OP, or any other person or
entity, and the Nonconsenting Limited Partner shall execute and deliver a release of all other such rights, claims and remedies in exchange for payment of the award. 

(j)  From and after the effective date of the Merger, no Nonconsenting Limited Partner who has demanded
appraisal rights as provided in paragraph (b) hereof shall be entitled to vote his or her limited 

  
 6 

 
partnership units for any purpose or to receive payment of distributions on such interests (except distributions payable as of a record date prior to the effective date of the Merger);
provided, however, that if such Nonconsenting Limited Partner shall deliver to Aimco Properties, L.P., c/o Eagle Rock Proxy Advisors, LLC, by mail at 12 Commerce Drive, Cranford, New Jersey 07016, or by fax at (908) 497-2349,
a written withdrawal of such Nonconsenting Limited Partner’s demand for an appraisal and an acceptance of the Cash Consideration payable pursuant to the Merger Agreement, either as provided in paragraph (c) hereof or thereafter with the
written approval of Aimco OP, then the right of such Nonconsenting Limited Partner to an appraisal shall cease. The appraisal proceeding may also be dismissed as to any Nonconsenting Limited Partner with the agreement or consent of Aimco OP upon
such terms as the two parties may agree. Except as provided in the two foregoing sentences, no appraisal proceeding before the arbitrator shall be dismissed as to any Nonconsenting Limited Partner without the approval of the arbitrator, and such
approval may be conditioned upon such terms as the arbitrator deems just. 

  
 7

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