Purchase Agreement



 Exhibit 10.1 
 $400,000,000 
 CHAPARRAL ENERGY, INC. 

8  1/4% Senior Notes due 2021 

Purchase Agreement 
 February 7, 2011 
 Wells Fargo Securities, LLC 

As Representative of the several Initial Purchasers 
 listed in Schedule 1 hereto 
 c/o Wells Fargo Securities, LLC 

301 South College Street 
 Charlotte, North
Carolina 28288 
 Ladies and Gentlemen: 
 Chaparral Energy, Inc., a Delaware corporation (the “Company”), proposes to issue and sell to the several Initial Purchasers listed in Schedule 1 hereto (the “Initial
Purchasers”), for whom you are acting as representative (the “Representative”), $400,000,000 principal amount of its
8  1/4% Senior Notes due 2021 (the
“Securities”). The Securities will be issued pursuant to an Indenture to be dated as of February 22, 2011 (the “Indenture”) among the Company, the guarantors listed in Schedule 2 hereto (the
“Guarantors”) and Wells Fargo Bank, National Association, as trustee (the “Trustee”) and will be guaranteed on an unsecured senior basis by each of the Guarantors (the “Guarantees”).

 The Securities will be sold to the Initial Purchasers in a transaction not registered under the Securities Act of
1933, as amended (the “Securities Act”), in reliance upon an exemption therefrom. The Company has prepared a preliminary offering memorandum dated February 7, 2011 (the “Preliminary Offering Memorandum”) and
will prepare an offering memorandum dated the date hereof (the “Offering Memorandum”) setting forth information concerning the Company and the Securities. Copies of the Preliminary Offering Memorandum have been, and copies of the
Offering Memorandum will be, delivered by the Company to the Initial Purchasers pursuant to the terms of this Agreement (as defined in Section 14(g)). The Company hereby confirms that it has authorized the use of the Preliminary Offering
Memorandum, the other Time of Sale Information (as defined below) and the Offering Memorandum in connection with the offering and resale of the Securities by the Initial Purchasers in the manner contemplated by this Agreement. Capitalized terms used
but not defined herein shall have the meanings given to such terms in the Preliminary Offering Memorandum. 
 At or prior to the
time when sales of the Securities were first made (the “Time of Sale”), the following information shall have been prepared (collectively, the “Time of Sale Information”): the Preliminary Offering Memorandum, as
supplemented and amended by the written communications listed on Annex A hereto. 







 Pursuant to the offer to purchase dated February 7, 2011, the Company is offering to
purchase (the “Tender Offer”) any and all of its outstanding 8.500% Senior Notes due 2015 (the “2015 Notes”) and is seeking consents (the “Consent Solicitation”) for proposed amendments and waivers
to the indenture dated as of December 1, 2005, pursuant to which the 2015 Notes are outstanding among the Company, the guarantors party thereto and Wells Fargo Bank, National Association, as trustee (the “2015 Notes
Indenture”). As described in the Time of Sale Information and the Offering Memorandum, proceeds from the issuance and sale of the Securities, shall be used to (i) pay consideration to holders who tender their 2015 Notes in the Tender
Offer and deliver their consents pursuant to the Consent Solicitation, (ii) if necessary, redeem any untendered 2015 Notes in accordance with the terms of the 2015 Notes Indenture, and (iii) pay fees and expenses in connection with the
Tender Offer and Consent Solicitation and the issuance and sale of the Securities. 
 Holders of the Securities (including the
Initial Purchasers and their direct and indirect transferees) will be entitled to the benefits of a Registration Rights Agreement to be dated the Closing Date (as defined below) and substantially in the form attached hereto as Exhibit A (the
“Registration Rights Agreement”), pursuant to which the Company and the Guarantors will agree to file one or more registration statements with the Securities and Exchange Commission (the “Commission”) providing for
the registration under the Securities Act of the Securities or the Exchange Securities referred to (and as defined) in the Registration Rights Agreement. 
 The Company hereby confirms its agreement with the several Initial Purchasers concerning the purchase and resale of the Securities, as follows: 

1. Purchase and Resale of the Securities. 
 (a) The Company agrees to issue and sell the Securities to the several Initial Purchasers as provided in this Agreement, and each Initial Purchaser, agrees, severally and not jointly, to purchase from the
Company, in each case, on the basis of the representations, warranties and agreements set forth herein and subject to the conditions set forth herein, the respective principal amount of Securities set forth opposite such Initial Purchaser’s
name in Schedule 1 hereto at a price equal to 98.0% of the principal amount thereof, plus accrued interest, if any, from February 22, 2011 to the Closing Date. The Company will not be obligated to deliver the Securities except upon
payment for all the Securities to be purchased as provided herein. 
 (b) The Company understands that the Initial Purchasers
intend to offer the Securities for resale on the terms set forth in the Time of Sale Information and the Offering Memorandum. Each Initial Purchaser, severally and not jointly, represents, warrants and agrees that: 

(i) it is a qualified institutional buyer within the meaning of Rule 144A under the Securities Act (a
“QIB”) and an accredited investor within the meaning of Rule 501(a) under the Securities Act; 

  
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 (ii) neither it nor any Person acting on its behalf has solicited offers
for, or offered or sold, or will solicit offers for, or offer or sell, the Securities by means of any form of general solicitation or general advertising within the meaning of Rule 502(c) of Regulation D under the Securities Act (“Regulation
D”) or in any manner involving a public offering within the meaning of Section 4(2) of the Securities Act; and 
 (iii) it has not solicited offers for, or offered or sold, and will not solicit offers for, or offer or sell, the Securities as part of their initial offering except: 

(A) within the United States to persons whom it reasonably believes to be QIBs in transactions pursuant to Rule 144A under
the Securities Act (“Rule 144A”) and in connection with each such sale, it has taken or will take reasonable steps to ensure that the purchaser of the Securities is aware that such sale is being made in reliance on Rule 144A; or

 (B) in accordance with the restrictions set forth in Annex C hereto. 

(c) Each Initial Purchaser acknowledges and agrees that the Company and, for purposes of the “no registration” opinions to be
delivered to the Initial Purchasers pursuant to Sections 6(g) and 6(h), McAfee & Taft A Professional Corporation, as counsel for the Company, and Cahill Gordon & Reindel LLP as counsel for the Initial Purchasers,
respectively, may rely upon the accuracy of the representations and warranties of the Initial Purchasers, and compliance by the Initial Purchasers with their agreements, contained in paragraph (b) above (including Annex C hereto),
and each Initial Purchaser hereby consents to such reliance. 
 (d) The Company acknowledges and agrees that the Initial
Purchasers may offer and sell Securities to or through any affiliate of an Initial Purchaser and that any such affiliate may offer and sell Securities purchased by it to or through any Initial Purchaser. 

(e) The Company acknowledges and agrees that the Initial Purchasers are acting solely in the capacity of an arm’s length contractual
counterparty to the Company with respect to the offering of Securities contemplated hereby (including in connection with determining the terms of the offering) and not as a financial advisor or a fiduciary to, or an agent of, the Company or any
other person. Additionally, no Initial Purchaser is advising the Company or any other person as to any legal, tax, investment, accounting or regulatory matters in any jurisdiction. The Company shall consult with its own advisors concerning such
matters and shall be responsible for making their own independent investigation and appraisal of the transactions contemplated hereby, and the Initial Purchasers shall have no responsibility or liability to the Company with respect thereto. Any
review by the Initial Purchasers of the Company, the transactions contemplated hereby or other matters relating to such transactions will be performed solely for the benefit of the Initial Purchasers and shall not be on behalf of the Company.


  
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 2. Payment and Delivery. 

(a) Payment for and delivery of the Securities will be made at the offices of Cahill Gordon & Reindel LLP at
10:00 A.M., New York City time, on February 22, 2011, or at such other time or place on the same or such other date, not later than the fourth business day thereafter, as the Representative and the Company may agree upon in writing. The time
and date of such payment and delivery is referred to herein as the “Closing Date.” 
 (b) Payment for the
Securities shall be made by wire transfer in immediately available funds to the account(s) specified by the Company to the Representative against delivery to the nominee of The Depository Trust Company (“DTC”), for the account of
the Initial Purchasers, of one or more global notes representing the Securities (collectively, the “Global Notes”), with any transfer taxes payable in connection with the sale of the Securities duly paid by the Company. The Global
Notes will be made available for inspection by the Representative not later than 1:00 P.M., New York City time, on the business day prior to the Closing Date. 
 3. Representations and Warranties of the Company and the Guarantors. The Company and the Guarantors jointly and severally represent and warrant to each Initial Purchaser that: 

(a) Preliminary Offering Memorandum, Time of Sale Information and Offering Memorandum. The Preliminary Offering Memorandum, as of
its date, did not, the Time of Sale Information, at the Time of Sale, did not, and at the Closing Date, will not, and, the Offering Memorandum, in the form first used by the Initial Purchasers to confirm sales of the Securities does not and as of
the Closing Date, will not, contain any untrue statement of a material fact or omit to state a material fact necessary in order to make the statements therein, in the light of the circumstances under which they were made, not misleading;
provided that the Company and the Guarantors make no representation or warranty with respect to any statements or omissions made in reliance upon and in conformity with information relating to any Initial Purchaser furnished to the Company in
writing by such Initial Purchaser through the Representative expressly for use in the Time of Sale Information or the Offering Memorandum. 
 (b) Additional Written Communications. The Company and the Guarantors (including their agents and representatives, other than the Initial Purchasers in their capacity as such) has not prepared,
made, used, authorized, approved or referred to and will not prepare, make, use, authorize, approve or refer to any written communication that constitutes an offer to sell or solicitation of an offer to buy the Securities (each such communication by
the Company and the Guarantors or their agents and representatives (other than a communication referred to in clauses (i), (ii) and (iii) below) an “Issuer Written Communication”) other than (i) the Preliminary
Offering Memorandum, (ii) the Offering Memorandum, (iii) the document listed on Annex A hereto, including a term sheet substantially in the form of Annex B hereto, which constitutes part of the Time of Sale Information, and
(iv) any electronic road show or other written communications, in each case used in accordance with Section 4(c). Each such Issuer Written Communication, when taken together with the Time of Sale Information, did not, and at the Closing
Date will not, contain any untrue statement of a material fact or omit to state a material fact necessary in order to make the statements therein, in the light of the circumstances under which they were made, not misleading; provided that the
Company and the Guarantors make no representation 

  
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and warranty with respect to any statements or omissions made in each such Issuer Written Communication in reliance upon and in conformity with information relating to any Initial Purchaser
furnished to the Company in writing by such Initial Purchaser through the Representative expressly for use in any Issuer Written Communication. Each Issuer Written Communication does not conflict with the Time of Sale Information or the Offering
Memorandum. 
 (c) Financial Statements. The historical financial statements and the related notes thereto of the Company
and its consolidated subsidiaries included in each of the Time of Sale Information and the Offering Memorandum present fairly the consolidated financial position of the Company and its subsidiaries as of the dates indicated and the results of their
operations and the changes in their cash flows for the periods specified; such financial statements have been prepared in conformity with generally accepted accounting principles in the United States applied on a consistent basis throughout the
periods covered thereby; the other financial information included in each of the Time of Sale Information and the Offering Memorandum has been derived from the accounting records of the Company and its subsidiaries and presents fairly the
information shown thereby; and the “Summary consolidated historical financial information” and “Selected historical consolidated financial information” set forth in each of the Time of Sale Information and the Offering Memorandum
is accurately presented in all material respects and prepared on a basis consistent with the audited and unaudited historical consolidated financial statements from which it has been derived. 

(d) No Material Adverse Change. Except as disclosed in the Time of Sale Information and the Offering Memorandum, since the date of
the most recent financial statements of the Company included in each of the Time of Sale Information and the Offering Memorandum, (i) there has not been any change in the capital stock or long-term debt of the Company or any of its subsidiaries
(other than borrowings under the ABL Revolving Facility (as defined in Section 14(g)), or any dividend or distribution of any kind declared, set aside for payment, paid or made by the Company on any class of capital stock, or any material
adverse change, or any development involving a prospective material adverse change, in or affecting the business, properties, consolidated financial position, stockholders’ equity or results of operations of the Company and its subsidiaries
taken as a whole; (ii) neither the Company nor any of its subsidiaries has entered into any transaction or agreement other than in the ordinary course of business; and (iii) neither the Company nor any of its subsidiaries has sustained any
loss or interference (including any liability or obligation) with its business, including from fire, explosion, flood or other calamity, whether or not covered by insurance, or from any labor disturbance or dispute or any action, order or decree of
any court or arbitrator or governmental or regulatory authority that is material to the Company and its subsidiaries, taken as a whole. 
 (e) Organization and Good Standing. The Company and each of its subsidiaries have been duly organized and are validly existing and in good standing under the laws of their respective jurisdictions
of organization, are duly qualified to do business and are in good standing in each other jurisdiction in which their respective ownership or lease of property or the conduct of their respective businesses requires such qualification, and have all
power and authority necessary to own or lease their respective properties and to conduct the businesses in which they are engaged, except where the failure to be so qualified or have such power or authority would not, individually or in the
aggregate, have a material adverse effect on the business, properties, consolidated financial position, stockholders’ equity or results of operations of the Company and its subsidiaries taken as a whole or on the performance


  
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by the Company and the Guarantors of their obligations under the Securities and the Guarantees (a “Material Adverse Effect”). The subsidiaries listed in Schedule 2 to this
Agreement are the only direct or indirect subsidiaries of the Company other than Oklahoma Ethanol LLC and Chaparral Biofuels, L.L.C., which will not be Guarantors. The Company does not own, directly or indirectly, equity securities or similar
ownership interests of any entity other than its interests in such subsidiaries. 
 (f) Capitalization. The Company has
an authorized capitalization as set forth in each of the Time of Sale Information and the Offering Memorandum under the heading “Capitalization.” The limited partnership agreements or limited liability company agreements governing all
outstanding limited partnership interests or limited liability company interests of each Guarantor have been validly executed and delivered, and all capital contributions required under such limited partnership agreements or limited liability
company agreements have been paid in full; and, except as otherwise described in each of the Time of Sale Information and the Offering Memorandum, the limited partnership interests or limited liability company interests of each Guarantor are owned
directly or indirectly by the Company, free and clear of any lien, charge, encumbrance or security interest, except as otherwise described in the Time of Sale Information and the Offering Memorandum, including without limitation for liens under or
permitted by the ABL Revolving Facility. 
 (g) Due Authorization. The Company and each of the Guarantors have full
right, power and authority to execute and deliver this Agreement, the Securities, the Indenture (including each Guarantee set forth therein), the Exchange Securities and the Registration Rights Agreement (to the extent a party thereto)
(collectively, the “Transaction Documents”), and to perform their respective obligations hereunder and thereunder; and all action required to be taken for the due and proper authorization, execution and delivery of each of the
Transaction Documents and the consummation of the transactions contemplated by the Transaction Documents has been duly and validly taken. 
 (h) The Indenture. The Indenture has been duly authorized by the Company and each of the Guarantors and, when duly executed and delivered in accordance with its terms by each of the parties
thereto, will constitute a valid and legally binding agreement of the Company and each of the Guarantors enforceable against the Company and each of the Guarantors in accordance with its terms, except as enforceability may be limited by applicable
bankruptcy, insolvency, fraudulent transfer, reorganization, moratorium or similar laws now or hereafter in effect relating to or affecting creditors’ rights generally or by general equitable principles regardless of whether enforcement is
sought in law or equity (collectively, the “Enforceability Exceptions”); and on the Closing Date, the Indenture will conform in all material respects to the requirements of the Trust Indenture Act of 1939, as amended (the
“Trust Indenture Act”), and the rules and regulations of the Commission applicable to an indenture that is qualified thereunder. 
 (i) The Securities and the Guarantees. The Securities have been duly authorized by the Company and, when duly executed, authenticated, issued and delivered as provided in the Indenture and paid for
as provided herein, will be duly and validly issued and outstanding and will constitute valid and legally binding obligations of the Company enforceable against the Company in accordance with their terms, subject to the Enforceability Exceptions,
and will be entitled to the benefits of the Indenture; and the Guarantees have been duly authorized by each of the Guarantors and, when the Securities 

  
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have been duly executed, authenticated, issued and delivered as provided in the Indenture and paid for as provided herein, will be valid and legally binding obligations of each of the Guarantors,
enforceable against each of the Guarantors in accordance with their terms, subject to the Enforceability Exceptions, and will be entitled to the benefits of the Indenture. 
 (j) The Exchange Securities. On the Closing Date, the Exchange Securities (including the related guarantees) will have been duly authorized by the Company and each of the Guarantors and, when duly
executed, authenticated, issued and delivered in accordance with the Indenture and as contemplated by the Registration Rights Agreement, will constitute valid and legally binding obligations of the Company, as issuer, and each of the Guarantors, as
guarantor, enforceable against the Company and each of the Guarantors in accordance with their terms, subject to the Enforceability Exceptions, and will be entitled to the benefits of the Indenture. 

(k) Purchase and Registration Rights Agreement. This Agreement has been duly authorized, executed and delivered by the Company and
each of the Guarantors; and the Registration Rights Agreement has been duly authorized by the Company and each of the Guarantors and, when duly executed and delivered in accordance with its terms by each of the parties thereto, will constitute a
valid and legally binding agreement of the Company and each of the Guarantors enforceable against the Company and each of the Guarantors in accordance with its terms, subject to the Enforceability Exceptions, and except that rights to indemnity and
contribution thereunder may be limited by applicable law and public policy. 
 (l) Descriptions of Certain Documents.
Each of the Securities, the Guarantees, the Indenture and the Registration Rights Agreement conforms in all material respects to the descriptions thereof contained in each of the Time of Sale Information and the Offering Memorandum. 

(m) No Violation or Default. Neither the Company nor any of its subsidiaries is (i) in violation of its charter or by-laws or
similar organizational documents; (ii) in default, and no event has occurred that, with notice or lapse of time or both, would constitute such a default, in the due performance or observance of any term, covenant or condition contained in any
indenture, mortgage, deed of trust, loan agreement or other agreement or instrument to which the Company or any of its subsidiaries is a party or by which the Company or any of its subsidiaries is bound or to which any of the property or assets of
the Company or any of its subsidiaries is subject; or (iii) in violation of any law or statute or any judgment, order, rule or regulation of any court or arbitrator or governmental or regulatory authority having jurisdiction over it or its
properties, except, in the case of clauses (ii) and (iii) above, for any such default or violation that would not, individually or in the aggregate, have a Material Adverse Effect. 

(n) No Conflicts. The execution, delivery and performance by the Company and each of the Guarantors of each of the Transaction
Documents to which each is a party, the issuance and sale of the Securities (and the Guarantees) and the consummation of the transactions contemplated by the Transaction Documents (including the Tender Offer and Consent Solicitation) will not
(i) conflict with or result in a breach or violation of any of the terms or provisions of, or constitute a default under, or result in the creation or imposition of any lien, charge or encumbrance upon any property or assets of the Company or
any of its subsidiaries pursuant to, any indenture, mortgage, deed of trust, loan 

  
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agreement or other agreement or instrument to which the Company or any of its subsidiaries is a party or by which the Company or any of its subsidiaries is bound or to which any of the property
or assets of the Company or any of its subsidiaries is subject (other than liens intended to be created under the ABL Revolving Facility), (ii) result in any violation of the provisions of the charter or by-laws or similar organizational
documents of the Company or any of its subsidiaries or (iii) result in the violation of any law or statute or any judgment, order, rule or regulation of any court or arbitrator or governmental or regulatory authority, except, in the case of
clauses (i) and (iii) above, for any such conflict, breach, violation, default, lien charge or encumbrance that would not, individually or in the aggregate, have a Material Adverse Effect. 

(o) No Consents Required. No consent, approval, authorization, order, registration or qualification of or with any court or
arbitrator or governmental or regulatory authority is required for the execution, delivery and performance by the Company and each of the Guarantors of each of the Transaction Documents to which each is a party, the issuance and sale of the
Securities (and the Guarantees) and the consummation of the transactions contemplated by the Transaction Documents, except for such consents, approvals, authorizations, orders and registrations or qualifications (i) as may be required under
applicable state securities laws in connection with the purchase and resale of the Securities by the Initial Purchasers, (ii) with respect to the Exchange Securities (and the related guarantees) as may be required under the Securities Act and
applicable state securities laws as contemplated by the Registration Rights Agreement, (iii) which have been, or prior to the Closing Date will be, obtained, and (iv) which, if not obtained, would not, individually or in the aggregate,
have a Material Adverse Effect. 
 (p) Legal Proceedings. Except as described in each of the Time of Sale Information and
the Offering Memorandum, there are no legal, governmental or regulatory, actions, suits or proceedings pending to which the Company or any of its subsidiaries is or may be a party or to which any property of the Company or any of its subsidiaries is
or may be the subject that, individually or in the aggregate, if determined adversely to the Company or any of its subsidiaries, could reasonably be expected to have a Material Adverse Effect; to the Company’s and each of the Guarantors’
knowledge, no such actions, suits or proceedings are threatened or contemplated by any governmental or regulatory authority or threatened by others. 
 (q) Independent Accountants. Grant Thornton LLP, who have certified certain financial statements of the Company and its subsidiaries in each of the Time of Sale Information and the Offering
Memorandum, are independent public accountants with respect to the Company and its subsidiaries and are independent public accountants within the meaning of Rule 101 of the Code of Professional Conduct of the American Institute of Certified Public
Accountants and its interpretations and rulings thereunder. 
 (r) Title to Real and Personal Property. The Company and
its subsidiaries have (1) good and defensible title to oil and gas properties owned by the Company and its subsidiaries, (2) good and indefeasable title in fee simple to all other real property owned by the Company and its subsidiaries and
(3) good title to all items of personal property owned by the Company and its subsidiaries, in each case that are material to the respective businesses of the Company and its subsidiaries, free and clear of all liens, encumbrances, claims and
defects and imperfections of title, except (i) those that are described in the each of the Time of Sale Information and the Offering Memorandum, (ii) those under 

  
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the ABL Revolving Facility, (iii) those under oil and gas leases, options to lease, operating agreements, utilization and pooling agreements, participation and drilling concessions
agreements and gas sales contracts, securing payment of amounts not yet due and payable and of a scope and nature customary in the oil and gas industry, (iv) those that do not materially interfere with the use made and proposed to be made of
such property by the Company and its subsidiaries or (v) those that could not reasonably be expected, individually or in the aggregate, to have a Material Adverse Effect; and any real property and buildings held under lease by the Company and
its subsidiaries are held by them under valid, subsisting and enforceable leases with such exceptions as are not material and do not interfere with the use made or proposed to be made of such real property and buildings by the Company or its
subsidiaries. 
 (s) Title to Intellectual Property. The Company and its subsidiaries own or possess or are licensed to
use adequate rights to use all material patents, patent applications, trademarks, service marks, trade names, trademark registrations, service mark registrations, copyrights, licenses and know-how (including trade secrets and other unpatented and/or
unpatentable proprietary or confidential information, systems or procedures) necessary for the conduct of their respective businesses, except where the failure to own, possess or license such rights would not, individually or in the aggregate, have
a Material Adverse Effect; the Company and its subsidiaries have not received any notice of any claim of infringement of or conflict with any such rights of others. 
 (t) Investment Company Act. Neither the Company nor any of its subsidiaries is, and after giving effect to the offering and sale of the Securities and the application of the proceeds thereof as
described in each of the Time of Sale Information and the Offering Memorandum none of them will be, an “investment company” within the meaning of the Investment Company Act of 1940, as amended, and the rules and regulations of the
Commission thereunder (collectively, “Investment Company Act”). 
 (u) Taxes. The Company and its
subsidiaries have paid all federal, state, local and foreign taxes and filed all tax returns required to be paid or filed through the date hereof to the extent that such taxes have become due and are not being contested in good faith with such
exceptions as would not, individually or in the aggregate, result in a Material Adverse Effect; and except as otherwise disclosed in each of the Time of Sale Information and the Offering Memorandum, there is no tax deficiency that has been asserted
against the Company or any of its subsidiaries or any of their respective properties or assets, which has had, nor does the Company have any knowledge of any tax deficiency, which if determined adversely to the Company or its subsidiaries might,
individually or in the aggregate, have a Material Adverse Effect. 
 (v) Licenses and Permits. The Company and its
subsidiaries possess all licenses, certificates, permits and other authorizations issued by, and have made all declarations and filings with, the appropriate federal, state, local or foreign governmental or regulatory authorities that are necessary
for the ownership or lease of their respective properties, the conduct of their respective businesses as described in each of the Time of Sale Information and the Offering Memorandum, except where the failure to possess or make the same would not,
individually or in the aggregate, have a Material Adverse Effect; and except as described in each of the Time of Sale Information and the Offering Memorandum, neither the Company nor any of its subsidiaries has received notice of any revocation or
modification 

  
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of any such license, certificate, permit or authorization or has any reason to believe that any such license, certificate, permit or authorization will not be renewed in the ordinary course,
except for notices, modifications or non-renewals as would not, individually or in the aggregate, have a Material Adverse Effect. 
 (w) No Labor Disputes. No labor disturbance by or dispute with employees of the Company or any of its subsidiaries exists or, to the knowledge of the Company and the Guarantors, is contemplated or
threatened, which disturbance or dispute would have a Material Adverse Effect. 
 (x) Compliance With Environmental Laws.
The Company and its subsidiaries (i) are in compliance with any and all applicable federal, state, local and foreign laws, rules, regulations, decisions and orders relating to the protection of human health and safety and the environment
including without limitation those imposing liability or standards of conduct concerning any hazardous or toxic substances or wastes, pollutants or contaminants (collectively, “Environmental Laws”); (ii) have received and are
in compliance with all permits, licenses or other approvals currently required of them under applicable Environmental Laws to conduct their respective businesses; (iii) have not received notice of any actual or potential liability for the
investigation or remediation of any disposal or release of hazardous or toxic substances or wastes, pollutants or contaminants, except in any such case as described in each of the Time of Sale Information and the Offering Memorandum or for any such
failure to comply with, or failure to receive required permits, licenses or approvals, or liability as would not, individually or in the aggregate, have a Material Adverse Effect. None of the Company or any of its subsidiaries has received notice
that it has been identified as a potentially responsible party under the Comprehensive Environmental Response, Compensation and Liability Act of 1980, as amended (“CERCLA”), or any comparable state law; and (v) no property or
facility of the Company or any of its subsidiaries is (x) listed or, to the Company’s or any subsidiary’s knowledge, proposed for listing on the National Priorities List under CERCLA or is (y) listed in the Comprehensive
Environmental Response, Compensation, Liability Information System List promulgated pursuant to CERCLA, or on any comparable list maintained by any state or local governmental authority. 

(y) Compliance With ERISA. Each employee benefit plan, within the meaning of Section 3(3) of the Employee Retirement Income
Security Act of 1974, as amended (“ERISA”), that is maintained, administered or contributed to by the Company or any of its affiliates for employees or former employees of the Company and its affiliates has been maintained in all
material respects in compliance with its terms and the requirements of any applicable statutes, orders, rules and regulations, including but not limited to ERISA and the Internal Revenue Code of 1986, as amended (the “Code”); no
prohibited transaction, within the meaning of Section 406 of ERISA or Section 4975 of the Code, has occurred with respect to any such plan excluding transactions effected pursuant to a statutory or administrative exemption; and for each
such plan that is subject to the funding rules of Section 412 of the Code or Section 302 of ERISA, no “accumulated funding deficiency” as defined in Section 412 of the Code has been incurred, whether or not waived, and the
fair market value of the assets of each such plan (excluding for these purposes accrued but unpaid contributions) exceeds the present value of all benefits accrued under such plan determined using reasonable actuarial assumptions. 

(z) Accounting Controls. The Company and its subsidiaries maintain systems of internal accounting controls sufficient to provide
reasonable assurance that (i) transactions are executed in accordance 

  
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with management’s general or specific authorizations; (ii) transactions are recorded as necessary to permit preparation of financial statements in conformity with generally accepted
accounting principles and to maintain asset accountability; (iii) access to assets is permitted only in accordance with management’s general or specific authorization; and (iv) the recorded accountability for assets is compared with
the existing assets at reasonable intervals and appropriate action is taken with respect to any differences. 
 (aa)
Insurance. The Company and its subsidiaries have insurance covering their respective properties, operations, personnel and businesses, which insurance is in amounts and insures against such losses and risks as are reasonably adequate for the
conduct by the Company and its subsidiaries of their respective businesses as is customary for companies engaged in similar businesses in similar industries; and neither the Company nor any of its subsidiaries has (i) received notice from any
insurer or agent of such insurer that any material capital improvements or other expenditures are required or necessary to be made in order to continue such insurance or (ii) any reason to believe that it will not be able to renew its existing
insurance coverage as and when such coverage expires or to obtain similar coverage at reasonable cost from similar insurers as may be necessary to continue its business. 
 (bb) Solvency. On and immediately after the Closing Date, the Company (after giving effect to the issuance of the Securities and the other transactions related thereto as described in each of the
Time of Sale Information and the Offering Memorandum) will be Solvent. As used in this paragraph, the term “Solvent” means, with respect to a particular date, that on such date (i) the present fair market value (or present fair
saleable value) of the assets of the Company is not less than the total amount required to pay the liabilities of the Company on its total existing debts and liabilities (including contingent liabilities) as they become absolute and matured;
(ii) the Company is able to realize upon its assets and pay its debts and other liabilities, contingent obligations and commitments as they mature and become due in the normal course of business; (iii) assuming consummation of the issuance
of the Securities as contemplated by this Agreement, the Time of Sale Information and the Offering Memorandum, the Company is not incurring debts or liabilities beyond its ability to pay as such debts and liabilities mature; (iv) the Company is
not engaged in any business or transaction, and does not propose to engage in any business or transaction, for which its property would constitute unreasonably small capital after giving due consideration to the prevailing practice in the industry
in which the Company is engaged; and (v) the Company is not a defendant in any civil action that would result in a judgment that the Company is or would become unable to satisfy. 

(cc) No Restrictions on Subsidiaries. Except for the restrictions applicable to subsidiaries that will not be Guarantors, no
subsidiary of the Company is currently prohibited, directly or indirectly, under any agreement or other instrument to which it is a party or is subject, from paying any dividends to the Company, from making any other distribution on such
subsidiary’s capital stock or similar ownership interest, from repaying to the Company any loans or advances to such subsidiary from the Company or from transferring any of such subsidiary’s properties or assets to the Company or any other
subsidiary of the Company. 
 (dd) No Broker’s Fees. Neither the Company nor any of its subsidiaries is a party to
any contract, agreement or understanding with any person (other than this Agreement) that would give rise to a valid claim against the Company or any of its subsidiaries or any Initial Purchaser for a brokerage commission, finder’s fee or like
payment in connection with the offering and sale of the Securities. 

  
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 (ee) Rule 144A Eligibility. On the Closing Date, the Securities will not be of the
same class as securities listed on a national securities exchange registered under Section 6 of the Exchange Act or quoted in an automated inter-dealer quotation system; and each of the Preliminary Offering Memorandum and the Offering
Memorandum, as of its respective date, contains or will contain all the information that, if requested by a prospective purchaser of the Securities, would be required to be provided to such prospective purchaser pursuant to Rule 144A(d)(4) under the
Securities Act. 
 (ff) No Integration. Neither the Company nor any of its affiliates (as defined in Rule 501(b) of
Regulation D) has, directly or through any agent, sold, offered for sale, solicited offers to buy or otherwise negotiated in respect of, any security (as defined in the Securities Act), that is or will be integrated with the sale of the Securities
in a manner that would require registration of the Securities under the Securities Act. 
 (gg) No General Solicitation or
Directed Selling Efforts. None of the Company or any of its affiliates or any other person acting on its or their behalf (other than the Initial Purchasers, as to which no representation is made) has (i) solicited offers for, or offered or
sold, the Securities by means of any form of general solicitation or general advertising within the meaning of Rule 502(c) of Regulation D or in any manner involving a public offering within the meaning of Section 4(2) of the Securities Act or
(ii) engaged in any directed selling efforts within the meaning of Regulation S under the Securities Act (“Regulation S”), and all such persons have complied with the offering restrictions requirement of Regulation S.

 (hh) Securities Law Exemptions. Assuming the accuracy of the representations and warranties of the Initial Purchasers
contained in Section 1(b) (including Annex C hereto) and their compliance with their agreements set forth therein, it is not necessary, in connection with the issuance and sale of the Securities to the Initial Purchasers and the offer,
resale and delivery of the Securities by the Initial Purchasers in the manner contemplated by this Agreement, the Time of Sale Information and the Offering Memorandum, to register the Securities under the Securities Act or to qualify the Indenture
under the Trust Indenture Act. 
 (ii) No Stabilization. Neither the Company nor any of the Guarantors has taken,
directly or indirectly, any action designed to or that could reasonably be expected to cause or result in any stabilization or manipulation of the price of the Securities. 
 (jj) Margin Rules. Neither the Company nor any of its subsidiaries has taken, and none of them will take, any action that might cause the issuance, sale and delivery of the Securities nor the
application of the proceeds thereof by the Company as described in each of the Time of Sale Information and the Offering Memorandum to violate Regulation T, U or X of the Board of Governors of the Federal Reserve System. 

(kk) Forward-Looking Statements. No forward-looking statement (within the meaning of Section 27A of the Securities Act and
Section 21E of the Exchange Act) contained in any of the Time of Sale Information or the Offering Memorandum has been made or reaffirmed without a reasonable basis or has been disclosed other than in good faith. 

  
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 (ll) Statistical and Market Data. Nothing has come to the attention of the Company or
any Guarantor that has caused the Company or any Guarantor to believe that the statistical and market-related data included in each of the Time of Sale Information and the Offering Memorandum is not based on or derived from sources that are reliable
and accurate in all material respects. 
 (mm) No Undisclosed Relationships. No relationship, direct or indirect, exists
between or among the Company or any of its subsidiaries, on the one hand, and the directors, officers, stockholders, customers or suppliers of the Company or any of its subsidiaries, on the other, that is required by the Securities Act to be
described in a prospectus that is not described in each of the Time of Sale Information and the Offering Memorandum and that is not so described therein. 
 (nn) Engineers; Reserve Reports. The information described in the each of Time of Sale Information and the Offering Memorandum regarding the estimated proved reserves of the Company and the
Guarantors is based in part on the reports generated by Cawley, Gillespie & Associates, Inc., Ryder Scott Company, L. P. and Lee Keeling & Associates, Inc., each as independent petroleum engineers with respect to the Company and
the Guarantors (the “Engineers”). The information underlying the estimates of the reserves of the Company and the Guarantors supplied by the Company to the Engineers, for the purposes of preparing the reserve reports of the Company
referenced in each of the Time of Sale Information and the Offering Memorandum (the “Reserve Reports”), was true and correct in all material respects on the date of each such Reserve Report; the estimates of future capital
expenditures and other future exploration and development costs supplied to the Engineers were prepared in good faith and with a reasonable basis; the information provided to the Engineers for purposes of preparing the Reserve Reports was prepared
in all material respects in accordance with customary industry practices; the Engineers were, as of the date of each of the Reserve Reports prepared by them, and are, as of the date hereof, independent petroleum engineers with respect to the Company
and the Guarantors; other than normal production of reserves and intervening spot market product price fluctuations, and except as disclosed in the each of Time of Sale Information and the Offering Memorandum, neither the Company nor any of the
Guarantors is aware of any facts or circumstances that would result in a material decline in the reserves in the aggregate, or the aggregate present value of future net cash flows therefrom, as described in the each of Time of Sale Information and
the Offering Memorandum and as reflected in the Reserve Reports; and the estimates of such reserves and the present value of the future net cash flows therefrom as described in the each of Time of Sale Information and the Offering Memorandum and
reflected in the Reserve Reports comply in all material respects with the Securities Act. 
 (oo) OFAC. None of the
Company, any of its subsidiaries or, to the knowledge of the Company, any director, officer, agent, employee or affiliate of the Company or any of its subsidiaries is currently subject to any U.S. sanctions administered by the Office of Foreign
Assets Control of the U.S. Department of the Treasury (“OFAC”); and the Company will not directly or indirectly use the proceeds of the offering of the Securities hereunder, or lend, contribute or otherwise make available such
proceeds to any subsidiary, joint venture partner or other person or entity, for the purpose of financing the activities of any person currently subject to any U.S. sanctions administered by OFAC. 

(pp) Compliance with Foreign Corrupt Practices Act. Neither the Company nor any of its subsidiaries nor, to the best knowledge of
the Company and each of the Guarantors, any director, officer, 

  
 13 









 
agent, employee or other person associated with or acting on behalf of the Company or any of its subsidiaries has (i) used any corporate funds for any unlawful contribution, gift,
entertainment or other unlawful expense relating to political activity; (ii) made any direct or indirect unlawful payment to any foreign or domestic government official or employee from corporate funds; (iii) violated or is in violation of
any provision of the Foreign Corrupt Practices Act of 1977; or (iv) made any bribe, rebate, payoff, influence payment, kickback or other unlawful payment. 
 4. Further Agreements of the Company and the Guarantors. The Company and each of the Guarantors jointly and severally covenant and agree with each Initial Purchaser that: 

(a) Delivery of Copies. The Company will deliver to the Initial Purchasers as many copies of the Preliminary Offering Memorandum,
any other Time of Sale Information, any Issuer Written Communication and the Offering Memorandum (including all amendments and supplements thereto) as the Representative may reasonably request. 

(b) Amendments or Supplements. Before finalizing the Offering Memorandum or making or distributing any amendment or supplement to
any of the Time of Sale Information or the Offering Memorandum, the Company will furnish to the Representative and counsel for the Initial Purchasers a copy of the proposed Offering Memorandum or such amendment or supplement for review, and will not
distribute any such proposed Offering Memorandum, amendment or supplement to which the Representative reasonably objects. 
 (c)
Additional Written Communications. Before making, preparing, using, authorizing, approving or referring to any Issuer Written Communication, the Company will furnish to the Representative and counsel for the Initial Purchasers a copy of such
written communication for review and will not make, prepare, use, authorize, approve or refer to any such written communication to which the Representative reasonably objects. 
 (d) Notice to the Representative. The Company will advise the Representative promptly, and confirm such advice in writing, (i) of the issuance by any governmental or regulatory authority of
any order preventing or suspending the use of any of the Time of Sale Information, any Issuer Written Communication or the Offering Memorandum or the initiation or, to the extent the Company becomes aware, threatening of any proceeding for that
purpose; (ii) of the occurrence of any event at any time prior to the completion of the initial offering of the Securities as a result of which the Preliminary Offering Memorandum or the Offering Memorandum as then amended or supplemented would
include any untrue statement of a material fact or omit to state a material fact necessary in order to make the statements therein, in the light of the circumstances existing when the Preliminary Offering Memorandum or the Offering Memorandum is
delivered to a purchaser, not misleading; (iii) of the occurrence of any event at any time prior to the completion of the initial offering of the Securities as a result of which an Issuer Written Communication would include any untrue statement
of a material fact; and (iv) of the receipt by the Company of any notice with respect to any suspension of the qualification of the Securities for offer and sale in any jurisdiction or the initiation or, to the extent the Company becomes aware,
threatening of any proceeding for such purpose; and the Company will use its commercially reasonable efforts to prevent the issuance of any such order preventing or suspending the use of any of the Time of Sale Information, any Issuer Written
Communication or the Offering Memorandum or suspending any such qualification of the Securities and, if any such order is issued, will obtain as soon as possible the withdrawal thereof. 

  
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 (e) Time of Sale Information. If at any time prior to the Closing Date (i) any
event shall occur or condition shall exist as a result of which any of the Time of Sale Information as then amended or supplemented would include any untrue statement of a material fact or omit to state any material fact necessary in order to make
the statements therein, in the light of the circumstances under which they were made, not misleading or (ii) it is necessary to amend or supplement any of the Time of Sale Information to comply with law, the Company will immediately notify the
Initial Purchasers thereof and forthwith prepare and, subject to paragraph (b) above, furnish to the Initial Purchasers such amendments or supplements to any of the Time of Sale Information as may be necessary so that the statements in any of
the Time of Sale Information as so amended or supplemented will not, in light of the circumstances under which they were made, be misleading or so that any of the Time of Sale Information will comply with law. 

(f) Ongoing Compliance of the Offering Memorandum. If at any time prior to the earlier of (i) 180 days following the Closing
Date and (ii) completion of the initial distribution of the Securities (x) any event shall occur or condition shall exist as a result of which the Offering Memorandum as then amended or supplemented would include any untrue statement of a
material fact or omit to state any material fact required to be stated therein or necessary in order to make the statements therein, in the light of the circumstances existing when the Offering Memorandum is delivered to a purchaser, not misleading
or (y) it is necessary to amend or supplement the Offering Memorandum to comply with law, the Company will immediately notify the Initial Purchasers thereof and forthwith prepare and, subject to paragraph (b) above, furnish to the Initial
Purchasers such amendments or supplements to the Offering Memorandum as may be necessary so that the statements in the Offering Memorandum as so amended or supplemented will not, in the light of the circumstances existing when the Offering
Memorandum is delivered to a purchaser, be misleading or so that the Offering Memorandum will comply with law. 
 (g) Blue
Sky Compliance. The Company will qualify the Securities for offer and sale under the securities or Blue Sky laws of such jurisdictions as the Representative shall reasonably request and will continue such qualifications in effect so long as
required for the offering and resale of the Securities; provided that neither the Company nor any of the Guarantors shall be required to (i) qualify as a foreign corporation or other entity or as a dealer in securities in any such
jurisdiction where it would not otherwise be required to so qualify, (ii) file any general consent to service of process in any such jurisdiction or (iii) subject itself to taxation in any such jurisdiction if it is not otherwise so
subject. 
 (h) Clear Market. During the period from the date hereof through and including the date that is 90 days after
the date hereof, the Company and each of the Guarantors will not, without the prior written consent of the Representative, offer, sell, contract to sell or otherwise dispose of any debt securities issued or guaranteed by the Company or any of the
Guarantors and having a tenor of more than one year. 

  
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 (i) Use of Proceeds. The Company will apply the net proceeds from the sale of the
Securities as described in each of the Time of Sale Information and the Offering Memorandum under the heading “Use of proceeds.” 
 (j) Supplying Information. While the Securities remain outstanding and are “restricted securities” within the meaning of Rule 144(a)(3) under the Securities Act, the Company and each of
the Guarantors will, during any period in which the Company is not subject to and in compliance with Section 13 or 15(d) of the Exchange Act, furnish to holders of the Securities and prospective purchasers of the Securities designated by such
holders, upon the request of such holders or such prospective purchasers, the information required to be delivered pursuant to Rule 144A(d)(4) under the Securities Act. 
 (k) DTC. The Company will assist the Initial Purchasers in arranging for the Securities to be eligible for clearance and settlement through DTC. 

(l) No Resales by the Company. Until the issuance of the Exchange Securities, the Company will not, and will not permit any of its
affiliates (as defined in Rule 144 under the Securities Act) to, resell any of the Securities that have been acquired by any of them, except for Securities purchased by the Company or any of its affiliates and resold in a transaction registered
under the Securities Act. 
 (m) No Integration. None of the Company, any of its affiliates (as defined in Rule 501(b) of
Regulation D) or any person acting on behalf of the Company or such affiliate will, directly or through any agent, sell, offer for sale, solicit offers to buy or otherwise negotiate in respect of, any security (as defined in the Securities Act),
that is or will be integrated with the sale of the Securities in a manner that would require registration of the Securities under the Securities Act. The Company will take all action that is appropriate or necessary to assure that its offerings of
other securities will not be integrated for purposes of the Securities Act with the offering contemplated hereby. 
 (n) No
General Solicitation or Directed Selling Efforts. None of the Company or any of its affiliates or any other person acting on its or their behalf (other than the Initial Purchasers, as to which no covenant is given) will (i) solicit offers
for, or offer or sell, the Securities by means of any form of general solicitation or general advertising within the meaning of Rule 502(c) of Regulation D or in any manner involving a public offering within the meaning of Section 4(2) of the
Securities Act or (ii) engage in any directed selling efforts within the meaning of Regulation S, and all such persons will comply with the offering restrictions requirement of Regulation S. 

(o) No Stabilization. Neither the Company nor any of the Guarantors will take, directly or indirectly, any action designed to or
that could reasonably be expected to cause or result in any stabilization or manipulation of the price of the Securities. 
 5.
Certain Agreements of the Initial Purchasers. Each Initial Purchaser hereby represents and agrees that it has not and will not use, authorize use of, refer to, or participate in the planning for use of, any written communication that
constitutes an offer to sell or the solicitation of an offer to buy the Securities other than (i) the Preliminary Offering Memorandum and the Offering Memorandum, (ii) a written communication that contains no “issuer information”
(as defined in Rule 433(h)(2) under 

  
 16 









 
the Securities Act) that was not included (including through incorporation by reference) in the Preliminary Offering Memorandum or the Offering Memorandum, (iii) any written communication
listed on Annex A or prepared pursuant to Section 4(c) above (including any electronic road show), (iv) any written communication prepared by such Initial Purchaser and approved by the Company in advance in writing or (v) any
written communication relating to or that contains the terms of the Securities and/or other information that was included (including through incorporation by reference) in the Preliminary Offering Memorandum or the Offering Memorandum. 

6. Conditions of Initial Purchasers’ Obligations. The obligation of each Initial Purchaser to purchase Securities on the
Closing Date as provided herein is subject to the performance by the Company and each of the Guarantors of their respective covenants and other obligations hereunder and to the following additional conditions: 

(a) Representations and Warranties. The representations and warranties of the Company and the Guarantors contained herein shall be
true and correct on the date hereof and on and as of the Closing Date; and the statements of the Company, the Guarantors and their respective officers made in any certificates delivered pursuant to this Agreement shall be true and correct on and as
of the Closing Date. 
 (b) No Downgrade. Subsequent to the earlier of (A) the Time of Sale and (B) the
execution and delivery of this Agreement, (i) no downgrading shall have occurred in the rating accorded the Securities or any other debt securities or preferred stock issued or guaranteed by the Company or any of the Guarantors by any
“nationally recognized statistical rating organization”, as such term is defined by the Commission for purposes of Rule 436(g)(2) under the Securities Act; and (ii) no such organization shall have publicly announced that it has under
surveillance or review, or has changed its outlook with respect to, its rating of the Securities or of any other debt securities or preferred stock issued or guaranteed by the Company or any of the Guarantors (other than an announcement with
positive implications of a possible upgrading). 
 (c) No Material Adverse Change. Subsequent to the execution and
delivery of this Agreement, no event or condition of a type described in Section 3(d) hereof shall have occurred or shall exist, which event or condition is not described in each of the Time of Sale Information (excluding any amendment or
supplement thereto) and the Offering Memorandum (excluding any amendment or supplement thereto) the effect of which in the judgment of Wells Fargo Securities, LLC makes it impracticable or inadvisable to proceed with the offering, sale or delivery
of the Securities on the terms and in the manner contemplated by this Agreement, the Time of Sale Information and the Offering Memorandum. 
 (d) Officers’ Certificate. The Representative shall have received on and as of the Closing Date a certificate of the chief executive officer, the chief financial officer and the general
counsel of the Company (i) confirming that such officers have carefully reviewed the Time of Sale Information and the Offering Memorandum and, to the best knowledge of such officers, the representations set forth in Sections 3(a) and 3(b)
hereof are true and correct, (ii) confirming that the other representations and warranties of the Company and the Guarantors in this Agreement are true and correct and that the Company and the Guarantors have complied with all agreements and
satisfied all conditions on their 

  
 17 









 
part to be performed or satisfied hereunder at or prior to the Closing Date, (iii) to the effect set forth in paragraphs (b) and (c) above and (iv) that, to the knowledge of
such officers, the statements of the Company and its officers made in any certificates delivered pursuant to this Agreement are true and correct on and as of the Closing Date. 
 (e) Comfort Letters. On the date of this Agreement and on the Closing Date, Grant Thornton LLP shall have furnished to the Representative, at the request of the Company, letters, dated the
respective dates of delivery thereof and addressed to the Initial Purchasers, in form and substance reasonably satisfactory to the Representative, containing statements and information of the type customarily included in accountants’
“comfort letters” to initial purchasers with respect to the financial statements and certain financial information of the Company and its subsidiaries contained in each of the Time of Sale Information and the Offering Memorandum;
provided that the letter delivered on the Closing Date shall use a “cut-off” date no more than three business days prior to such Closing Date. 
 (f) Reserve Engineer Letters. The Initial Purchasers shall have received letters, dated the Closing Date and addressed to the Initial Purchasers, from Cawley, Gillespie & Associates, Inc.,
Ryder Scott Company, L. P. and Lee Keeling & Associates, Inc., each an independent petroleum engineering firm for the Company, in form and substance reasonably satisfactory to the Representative and counsel for the Initial Purchasers.

 (g) Opinion of Counsel for the Company. McAfee & Taft A Professional Corporation, counsel for the Company,
and Robert W. Kelly II, Esq., General Counsel of the Company, shall have furnished to the Representative, at the request of the Company, their written opinion (and a negative assurance letter, in the case of McAfee & Taft, P.C.), dated the
Closing Date and addressed to the Initial Purchasers, in form and substance reasonably satisfactory to the Representative, to the effect set forth in Annexes D-1 and D-2, respectively, hereto. 

(h) Opinion of Counsel for the Initial Purchasers. The Representative shall have received on and as of the Closing Date an opinion
and negative assurance letter of Cahill Gordon & Reindel LLP, counsel for the Initial Purchasers, with respect to such matters as the Initial Purchasers may reasonably request, and such counsel shall have received such
documents and information as they may reasonably request to enable them to pass upon such matters. 
 (i) No Legal Impediment
to Issuance. No action shall have been taken and no statute, rule, regulation or order shall have been enacted, adopted or issued by any federal, state or foreign governmental or regulatory authority that would, as of the Closing Date, prevent
the issuance or sale of the Securities or the issuance of the Guarantees; and no injunction or order of any federal, state or foreign court shall have been issued that would, as of the Closing Date, prevent the issuance or sale of the Securities or
the issuance of the Guarantees. 
 (j) Good Standing. The Representative shall have received on and as of the Closing
Date satisfactory evidence of the good standing of the Company and its subsidiaries in their respective jurisdictions of organization and their good standing in such other jurisdictions as the Representative may reasonably request, in each case in
writing or any standard form of telecommunication, from the appropriate governmental authorities of such jurisdictions. 

  
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 (k) Registration Rights Agreement. The Representative shall have received a
counterpart of the Registration Rights Agreement that shall have been executed and delivered by a duly authorized officer of the Company and each of the Guarantors. 
 (l) DTC. The Securities shall be eligible for clearance and settlement through DTC. 
 (m) Tender Offer. Substantially concurrently with the Closing Date, the Company shall have given notice to the trustee under the 2015 Notes Indenture of the Company’s election to redeem all of
the 2015 Notes that remain outstanding following the consummation of the Tender Offer and Consent Solicitation. 
 (n)
Additional Documents. On or prior to the Closing Date, the Company and the Guarantors shall have furnished to the Representative such further certificates and documents as the Representative may reasonably request. 

All opinions, letters, certificates and evidence mentioned above or elsewhere in this Agreement shall be deemed to be in compliance with
the provisions hereof only if they are in form and substance reasonably satisfactory to counsel for the Initial Purchasers. 

7. Indemnification and Contribution. 
 (a) Indemnification of the Initial Purchasers. The Company and each of the Guarantors jointly and severally agree to indemnify and hold harmless each Initial Purchaser, its affiliates, directors
and officers and each person, if any, who controls (within the meaning of Section 15 of the Securities Act or Section 20 of the Exchange Act) such Initial Purchaser, from and against any and all losses, claims, damages and liabilities
(including, without limitation, reasonable legal fees and other expenses incurred in connection with any suit, action or proceeding or any claim asserted, as such fees and expenses are incurred), joint or several, that arise out of, or are based
upon, any untrue statement or alleged untrue statement of a material fact contained in the Preliminary Offering Memorandum, any of the other Time of Sale Information, any Issuer Written Communication or the Offering Memorandum (or any amendment or
supplement thereto) or any omission or alleged omission to state in the Time of Sale Information or the Offering Memorandum a material fact required to be stated therein or necessary in order to make the statements therein, in the light of the
circumstances under which they were made, not misleading, except insofar as such losses, claims, damages or liabilities arise out of, or are based upon, any untrue statement or omission or alleged untrue statement or omission made in reliance upon
and in conformity with any information relating to any Initial Purchaser furnished to the Company in writing by such Initial Purchaser through the Representative expressly for use therein, it being understood and agreed that the only such
information furnished by any Initial Purchaser consists of the information described as such in subsection (b) below. 

(b) Indemnification of the Company. Each Initial Purchaser agrees, severally and not jointly, to indemnify and hold harmless the
Company, each of the Guarantors, their respective directors and officers and each person, if any, who controls (within the meaning of Section 15 of the Securities Act or Section 20 of the Exchange Act) the Company or any of the Guarantors
to the same extent as the indemnity set forth in paragraph (a) above, but only with respect to any losses, claims, damages 

  
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or liabilities that arise out of, or are based upon, any untrue statement or omission or alleged untrue statement or omission made in reliance upon and in conformity with any information
furnished to the Company in writing by such Initial Purchaser through the Representative expressly for use in the Preliminary Offering Memorandum, any of the other Time of Sale Information, any Issuer Written Communication or the Offering Memorandum
(or any amendment or supplement thereto), it being understood and agreed that the only such information consists of the following: the information contained in the fourth sentence of the eleventh paragraph and the thirteenth paragraph under the
caption “Plan of distribution” in the Preliminary Offering Memorandum and the Offering Memorandum. 
 (c) Notice
and Procedures. If any suit, action, proceeding (including any governmental or regulatory investigation), claim or demand shall be brought or asserted against any person in respect of which indemnification may be sought pursuant to either
paragraph (a) or (b) above, such person (the “Indemnified Person”) shall promptly notify the person against whom such indemnification may be sought (the “Indemnifying Person”) in writing; provided
that the failure to notify the Indemnifying Person shall not relieve it from any liability that it may have under paragraph (a) or (b) above except to the extent that it has been materially prejudiced (through the forfeiture of substantive
rights or defenses) by such failure; and provided, further, that the failure to notify the Indemnifying Person shall not relieve it from any liability that it may have to an Indemnified Person otherwise than under paragraph (a) or
(b) above. If any such proceeding shall be brought or asserted against an Indemnified Person and it shall have notified the Indemnifying Person thereof, the Indemnifying Person shall retain counsel reasonably satisfactory to the Indemnified
Person to represent the Indemnified Person and any others entitled to indemnification pursuant to this Section 7 that the Indemnifying Person may designate in such proceeding and shall pay the reasonable fees and expenses of such counsel
related to such proceeding, as incurred. In any such proceeding, any Indemnified Person shall have the right to retain its own counsel, but the fees and expenses of such counsel shall be at the expense of such Indemnified Person unless (i) the
Indemnifying Person and the Indemnified Person shall have mutually agreed to the contrary; (ii) the Indemnifying Person has failed within a reasonable time to retain counsel reasonably satisfactory to the Indemnified Person; (iii) the
Indemnified Person shall have reasonably concluded that there may be legal defenses available to it that are different from or in addition to those available to the Indemnifying Person; or (iv) the named parties in any such proceeding
(including any impleaded parties) include both the Indemnifying Person and the Indemnified Person and representation of both parties by the same counsel would be inappropriate due to actual or potential differing interests between them. It is
understood and agreed that the Indemnifying Person shall not, in connection with any proceeding or related proceeding in the same jurisdiction, be liable for the fees and expenses of more than one separate firm (in addition to any reasonably
necessary local counsel) for all Indemnified Persons, and that all such reasonable fees and expenses shall be paid or reimbursed as they are incurred. Any such separate firm for any Initial Purchaser, its affiliates, directors and officers and any
control persons of such Initial Purchaser shall be designated in writing by Wells Fargo Securities, LLC and any such separate firm for the Company, the Guarantors, their respective directors and officers and any control persons of the Company and
the Guarantors shall be designated in writing by the Company. The Indemnifying Person shall not be liable for any settlement of any proceeding effected without its written consent, but if settled with such consent or if there be a final judgment for
the plaintiff, the Indemnifying Person agrees to indemnify each Indemnified Person from and against any loss or liability by reason of such settlement or judgment. Notwithstanding the foregoing sentence, if at any time an Indemnified Person


  
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shall have requested that an Indemnifying Person reimburse the Indemnified Person for fees and expenses of counsel as contemplated by this paragraph, the Indemnifying Person shall be liable for
any settlement of any proceeding effected without its written consent if (i) such settlement is entered into more than 45 days after receipt by the Indemnifying Person of such request and (ii) the Indemnifying Person shall not have
reimbursed the Indemnified Person in accordance with such request prior to the date of such settlement. No Indemnifying Person shall, without the written consent of the Indemnified Person, effect any settlement of any pending or threatened
proceeding in respect of which any Indemnified Person is or could have been a party and indemnification could have been sought hereunder by such Indemnified Person, unless such settlement (x) includes an unconditional release of such
Indemnified Person, in form and substance reasonably satisfactory to such Indemnified Person, from all liability on claims that are the subject matter of such proceeding and (y) does not include any statement as to or any admission of fault,
culpability or a failure to act by or on behalf of any Indemnified Person. 
 (d) Contribution. If the indemnification
provided for in paragraphs (a) and (b) above is unavailable to an Indemnified Person or insufficient in respect of any losses, claims, damages or liabilities referred to therein, then each Indemnifying Person under such paragraph, in lieu
of indemnifying such Indemnified Person thereunder, shall contribute to the amount paid or payable by such Indemnified Person as a result of such losses, claims, damages or liabilities (i) in such proportion as is appropriate to reflect the
relative benefits received by the Company and the Guarantors on the one hand and the Initial Purchasers on the other from the offering of the Securities or (ii) if the allocation provided by clause (i) is not permitted by applicable law,
in such proportion as is appropriate to reflect not only the relative benefits referred to in clause (i) but also the relative fault of the Company and the Guarantors on the one hand and the Initial Purchasers on the other in connection with
the statements or omissions that resulted in such losses, claims, damages or liabilities, as well as any other relevant equitable considerations. The relative benefits received by the Company and the Guarantors on the one hand and the Initial
Purchasers on the other shall be deemed to be in the same respective proportions as the net proceeds (before deducting expenses) received by the Company from the sale of the Securities and the total discounts and commissions received by the Initial
Purchasers in connection therewith, as provided in this Agreement, bear to the aggregate offering price of the Securities. The relative fault of the Company and the Guarantors on the one hand and the Initial Purchasers on the other shall be
determined by reference to, among other things, whether the untrue or alleged untrue statement of a material fact or the omission or alleged omission to state a material fact relates to information supplied by the Company or any Guarantor or by the
Initial Purchasers and the parties’ relative intent, knowledge, access to information and opportunity to correct or prevent such statement or omission. 
 (e) Limitation on Liability. The Company, the Guarantors and the Initial Purchasers agree that it would not be just and equitable if contribution pursuant to this Section 7 were determined by
pro rata allocation (even if the Initial Purchasers were treated as one entity for such purpose) or by any other method of allocation that does not take account of the equitable considerations referred to in paragraph (d) above.
The amount paid or payable by an Indemnified Person as a result of the losses, claims, damages and liabilities referred to in paragraph (d) above shall be deemed to include, subject to the limitations set forth above, any legal or other
expenses reasonably incurred by such Indemnified Person in connection with any such action or claim. Notwithstanding the provisions of this Section 7, 

  
 21 









 
in no event shall an Initial Purchaser be required to contribute any amount in excess of the amount by which the total discounts and commissions received by such Initial Purchaser with respect to
the offering of the Securities exceeds the amount of any damages that such Initial Purchaser has otherwise been required to pay by reason of such untrue or alleged untrue statement or omission or alleged omission. No person guilty of fraudulent
misrepresentation (within the meaning of Section 11(f) of the Securities Act) shall be entitled to contribution from any person who was not guilty of such fraudulent misrepresentation. The Initial Purchasers’ obligations to contribute
pursuant to this Section 7 are several in proportion to their respective purchase obligations hereunder and not joint. 

(f) Non-Exclusive Remedies. The remedies provided for in this Section 7 are not exclusive and shall not limit any rights or
remedies that may otherwise be available to any Indemnified Person at law or in equity. 
 8. Termination. This Agreement
may be terminated in the absolute discretion of Wells Fargo Securities, LLC, by notice to the Company, if after the execution and delivery of this Agreement and prior to the Closing Date (i) trading generally shall have been suspended or
materially limited on or by any of the New York Stock Exchange, the American Stock Exchange, the Nasdaq National Market or the over-the-counter market; (ii) trading of any securities issued or guaranteed by the Company or any of the Guarantors
shall have been suspended on any exchange or in any over-the-counter market; (iii) a general moratorium on commercial banking activities shall have been declared by federal or New York State authorities; or (iv) there shall have occurred
any outbreak or escalation of hostilities or any change in financial markets or any calamity or crisis, either within or outside the United States, that, in the judgment of Wells Fargo Securities, LLC, is material and adverse and makes it
impracticable or inadvisable to proceed with the offering, sale or delivery of the Securities on the terms and in the manner contemplated by this Agreement, the Time of Sale Information and the Offering Memorandum. 

9. Defaulting Initial Purchaser. 
 (a) If, on the Closing Date, any Initial Purchaser defaults on its obligation to purchase the Securities that it has agreed to purchase hereunder, the non-defaulting Initial Purchasers may in their
discretion arrange for the purchase of such Securities by other persons satisfactory to the Company on the terms contained in this Agreement. If, within 36 hours after any such default by any Initial Purchaser, the non-defaulting Initial Purchasers
do not arrange for the purchase of such Securities, then the Company shall be entitled to a further period of 36 hours within which to procure other persons satisfactory to the non-defaulting Initial Purchasers to purchase such Securities on such
terms. If other persons become obligated or agree to purchase the Securities of a defaulting Initial Purchaser, either the non-defaulting Initial Purchasers or the Company may postpone the Closing Date for up to five full business days in order to
effect any changes that in the opinion of counsel for the Company or counsel for the Initial Purchasers may be necessary in the Time of Sale Information, the Offering Memorandum or in any other document or arrangement, and the Company agrees to
promptly prepare any amendment or supplement to the Time of Sale Information or the Offering Memorandum that effects any such changes. As used in this Agreement, the term “Initial Purchaser” includes, for all purposes of this
Agreement unless the context otherwise requires, any person not listed in Schedule 1 hereto that, pursuant to this Section 9, purchases Securities that a defaulting Initial Purchaser agreed but failed to purchase. 

  
 22 









 (b) If, after giving effect to any arrangements for the purchase of the Securities of a
defaulting Initial Purchaser or Initial Purchasers by the non-defaulting Initial Purchasers and the Company as provided in paragraph (a) above, the aggregate principal amount of such Securities that remains unpurchased does not exceed
one-eleventh of the aggregate principal amount of all the Securities, then the Company shall have the right to require each non-defaulting Initial Purchaser to purchase the principal amount of Securities that such Initial Purchaser agreed to
purchase hereunder plus such Initial Purchaser’s pro rata share (based on the principal amount of Securities that such Initial Purchaser agreed to purchase hereunder) of the Securities of such defaulting Initial Purchaser or
Initial Purchasers for which such arrangements have not been made. 
 (c) If, after giving effect to any arrangements for the
purchase of the Securities of a defaulting Initial Purchaser or Initial Purchasers by the non-defaulting Initial Purchasers and the Company as provided in paragraph (a) above, the aggregate principal amount of such Securities that remains
unpurchased exceeds one-eleventh of the aggregate principal amount of all the Securities, or if the Company shall not exercise the right described in paragraph (b) above, then this Agreement shall terminate without liability on the part of the
non-defaulting Initial Purchasers. Any termination of this Agreement pursuant to this Section 9 shall be without liability on the part of the Company or the Guarantors, except that the Company and each of the Guarantors will continue to be
liable for the payment of expenses as set forth in Section 10 hereof and except that the provisions of Section 7 hereof shall not terminate and shall remain in effect. 

(d) Nothing contained herein shall relieve a defaulting Initial Purchaser of any liability it may have to the Company, the Guarantors or
any non-defaulting Initial Purchaser for damages caused by its default. 
 10. Payment of Expenses. 

(a) Whether or not the transactions contemplated by this Agreement are consummated or this Agreement is terminated, the Company and each
of the Guarantors jointly and severally agree to pay or cause to be paid all costs and expenses incident to the performance of their respective obligations hereunder, including without limitation, (i) the costs incident to the authorization,
issuance, sale, preparation and delivery of the Securities and any taxes payable in that connection; (ii) the costs incident to the preparation and printing of the Preliminary Offering Memorandum, any other Time of Sale Information, any Issuer
Written Communication and the Offering Memorandum (including any amendment or supplement thereto) and the distribution thereof; (iii) the costs of reproducing and distributing each of the Transaction Documents; (iv) the fees and expenses
of the Company’s and the Guarantors’ counsel and independent accountants; (v) the fees and expenses incurred in connection with the registration or qualification and determination of eligibility for investment of the Securities under
the laws of such jurisdictions as the Representative may designate and the preparation, printing and distribution of a Blue Sky Memorandum (including the related fees and reasonable expenses of counsel for the Initial Purchasers), (vi) any fees
charged by rating agencies for rating the Securities; (vii) the fees and expenses of the Trustee and any paying agent (including related fees and expenses of any counsel to such parties);
(viii)

  
 23 









 
all expenses and application fees incurred in connection with the approval of the Securities for book-entry transfer by DTC; and (ix) all expenses incurred by the Company in connection with
any “road show” presentation to potential investors. 
 (b) If (i) the Company for any reason fails to tender the
Securities for delivery to the Initial Purchasers or (ii) the Initial Purchasers decline to purchase the Securities for any reason permitted under this Agreement other than a termination pursuant to Section 8(i), 8(iii) or 8(iv), the
Company and each of the Guarantors jointly and severally agree to reimburse the Initial Purchasers for all out-of-pocket costs and expenses (including the fees and expenses of their counsel) reasonably incurred by the Initial Purchasers in
connection with this Agreement and the offering contemplated hereby. 
 11. Persons Entitled to Benefit of Agreement.
This Agreement shall inure to the benefit of and be binding upon the parties hereto and their respective successors and any controlling persons referred to herein, and the affiliates, officers and directors of each Initial Purchaser referred to in
Section 7 hereof. Nothing in this Agreement is intended or shall be construed to give any other person any legal or equitable right, remedy or claim under or in respect of this Agreement or any provision contained herein. No purchaser of
Securities from any Initial Purchaser shall be deemed to be a successor merely by reason of such purchase. 
 12.
Survival. The respective indemnities, rights of contribution, representations, warranties and agreements of the Company, the Guarantors and the Initial Purchasers contained in this Agreement or made by or on behalf of the Company, the
Guarantors or the Initial Purchasers pursuant to this Agreement or any certificate delivered pursuant hereto shall survive the delivery of and payment for the Securities and shall remain in full force and effect, regardless of any termination of
this Agreement or any investigation made by or on behalf of the Company, the Guarantors or the Initial Purchasers. 
 13.
Certain Defined Terms. For purposes of this Agreement, (a) except where otherwise expressly provided, the term “affiliate” has the meaning set forth in Rule 405 under the Securities Act; (b) the term “business
day” means any day other than a day on which banks are permitted or required to be closed in New York City; and (c) the term “subsidiary” has the meaning set forth in Rule 405 under the Securities Act. 

14. Miscellaneous. 
 (a) Authority of the Representative. Any action by the Initial Purchasers hereunder may be taken by Wells Fargo Securities, LLC on behalf of the Initial Purchasers, and any such action taken by
Wells Fargo Securities, LLC shall be binding upon the Initial Purchasers. 
 (b) Notices. All notices and other
communications hereunder shall be in writing and shall be deemed to have been duly given if mailed or transmitted and confirmed by any standard form of telecommunication. Notices to the Initial Purchasers shall be given to the Representative c/o
Wells Fargo Securities, LLC, 301 South College Street, Charlotte, North Carolina 28288-0604, Attention: Peter Daniel, with a copy to Cahill Gordon & Reindel LLP, 80 Pine Street, New York, New York, Attention: Doug Horowitz, Esq. Notices to
the Company shall be given to it at 701 Cedar Lake Boulevard, Oklahoma City, Oklahoma 73114 (fax: (405) 478-2906); Attention: General Counsel. 

  
 24 









 (c) Governing Law. This Agreement shall be governed by and construed in accordance
with the laws of the State of New York. 
 (d) Counterparts. This Agreement may be signed in counterparts (which may
include counterparts delivered by any standard form of telecommunication), each of which shall be an original and all of which together shall constitute one and the same instrument. 

(e) Amendments or Waivers. No amendment or waiver of any provision of this Agreement, nor any consent or approval to any departure
therefrom, shall in any event be effective unless the same shall be in writing and signed by the parties hereto. 
 (f)
Headings. The headings herein are included for convenience of reference only and are not intended to be part of, or to affect the meaning or interpretation of, this Agreement. 

(g) Definitions. The terms that follow, when used in this Agreement, shall have the meanings indicated. 

“ABL Revolving Facility” shall mean that certain eighth restated senior secured asset-based revolving credit facility of
the Company, dated as of April 12, 2010, by and among the borrowers party thereto, including the Company, and JPMorgan Chase Bank, N.A., as Administrative Agent, as amended to the date hereof. 

“Agreement” shall mean this purchase agreement. 

  
 25 









 If the foregoing is in accordance with your understanding, please indicate your acceptance
of this Agreement by signing in the space provided below. 
  

			
	Very truly yours,
	
	CHAPARRAL ENERGY, INC.
		
	By:	 	 /s/ Mark A. Fischer

		 	Name: Mark A. Fischer
		 	Title: Chief Executive Officer and President
	
	CHAPARRAL ENERGY, L.L.C.
		
	By:	 	 /s/ Mark A. Fischer

		 	Name: Mark A. Fischer
		 	Title: Manager
	
	NORAM PETROLEUM, L.L.C.
		
	By:	 	 /s/ Mark A. Fischer

		 	Name: Mark A. Fischer
		 	Title: Manager
	
	CHAPARRAL RESOURCES, L.L.C.
		
	By:	 	 /s/ Mark A. Fischer

		 	Name: Mark A. Fischer
		 	Title: Manager



  
 26 









 
			
	CHAPARRAL CO2, L.L.C.
		
	By:	 	 /s/ Mark A. Fischer

		 	Name: Mark A. Fischer
		 	Title: Manager
	
	CHAPARRAL REAL ESTATE, L.L.C.
		
	By:	 	 /s/ Mark A. Fischer

		 	Name: Mark A. Fischer
		 	Title: Manager
	
	CEI ACQUISITION, L.L.C.
		
	By:	 	 /s/ Mark A. Fischer

		 	Name: Mark A. Fischer
		 	Title: Manager
	
	CEI PIPELINE, L.L.C.
		
	By:	 	 /s/ Mark A. Fischer

		 	Name: Mark A. Fischer
		 	Title: Manager
	
	GREEN COUNTRY SUPPLY, INC.
		
	By:	 	 /s/ Mark A. Fischer

		 	Name: Mark A. Fischer
		 	Title: President



  
 27 









 
			
	CHAPARRAL EXPLORATION, L.L.C.
		
	By:	 	 /s/ Mark A. Fischer

		 	Name: Mark A. Fischer
		 	Title: Manager
	
	ROADRUNNER DRILLING, L.L.C.
		
	By:	 	 /s/ Mark A. Fischer

		 	Name: Mark A. Fischer
		 	Title: Manager



  
 28 










			
	WELLS FARGO SECURITIES, LLC
	
	 For itself and on behalf of the several
 Initial Purchasers listed in Schedule 1 hereto.

		
	By	 	 /s/ Authorized Signatory

		 	Authorized Signatory


  
 29 









 Schedule 1 
  

					
	 Initial Purchaser
	  	Principal Amount	 
		
	 Wells Fargo Securities, LLC
	  	$	120,000,000	  
	 J.P. Morgan Securities LLC
	  	$	49,000,000	  
	 Credit Suisse Securities (USA) LLC
	  	$	49,000,000	  
	 RBC Capital Markets, LLC
	  	$	49,000,000	  
	 UBS Securities LLC
	  	$	49,000,000	  
	 Capital One Southcoast, Inc.
	  	$	15,000,000	  
	 Credit Agricole Securities (USA) Inc.
	  	$	15,000,000	  
	 SG Americas Securities, LLC
	  	$	15,000,000	  
	 Scotia Capital (USA) Inc.
	  	$	6,500,000	  
	 Lloyds TSB Bank plc
	  	$	6,500,000	  
	 Comerica Securities, Inc.
	  	$	6,500,000	  
	 Natixis Securities North America Inc.
	  	$	6,500,000	  
	 Mitsubishi UFJ Securities (USA), Inc.
	  	$	6,500,000	  
	 U.S. Bancorp Investments, Inc.
	  	$	6,500,000	  
		  	 	 	 
		
	 Total
	  	$	400,000,000	  








 Schedule 2 
 Guarantors 
  

			
	 Name of Subsidiary
	  	 Jurisdiction of Incorporation or Organization

		
	Chaparral Energy, L.L.C.	  	Oklahoma
		
	NorAm Petroleum, L.L.C.	  	Oklahoma
		
	Chaparral Resources, L.L.C.	  	Oklahoma
		
	Chaparral CO2, L.L.C.	  	Oklahoma
		
	Chaparral Real Estate, L.L.C.	  	Oklahoma
		
	CEI Acquisition, L.L.C.	  	Delaware
		
	Green Country Supply, Inc.	  	Oklahoma
		
	CEI Pipeline, L.L.C.	  	Texas
		
	Chaparral Exploration, L.L.C.	  	Delaware
		
	Roadrunner Drilling, L.L.C.	  	Oklahoma








 ANNEX A 
 Additional Time of Sale Information 
 1. Term sheet containing the terms of
the Securities, substantially in the form of Annex B. 







 ANNEX B 
 Form of 
 Pricing Term Sheet for 

the Securities 
 To be provided under separate cover. 







 ANNEX C 
 Restrictions on Offers and Sales Outside the United States 
 In connection
with offers and sales of Securities outside the United States: 
 (a) Each Initial Purchaser acknowledges that the Securities
have not been registered under the Securities Act and may not be offered or sold within the United States or to, or for the account or benefit of, U.S. persons except pursuant to an exemption from, or in transactions not subject to, the registration
requirements of the Securities Act. 
 (b) Each Initial Purchaser, severally and not jointly, represents, warrants and agrees
that: 
 (i) Such Initial Purchaser has offered and sold the Securities, and will offer and sell the Securities,
(A) as part of their distribution at any time and (B) otherwise until 40 days after the later of the commencement of the offering of the Securities and the Closing Date, only in accordance with Regulation S under the Securities Act
(“Regulation S”) or Rule 144A or any other available exemption from registration under the Securities Act. 
 (ii) None of such Initial Purchaser or any of its affiliates or any other person acting on its or their behalf has engaged or will engage in any directed selling efforts with respect to the Securities,
and all such persons have complied and will comply with the offering restrictions requirement of Regulation S. 

(iii) At or prior to the confirmation of sale of any Securities sold in reliance on Regulation S, such Initial Purchaser
will have sent to each distributor, dealer or other person receiving a selling concession, fee or other remuneration that purchases Securities from it during the distribution compliance period a confirmation or notice to substantially the following
effect: 
 “The Securities covered hereby have not been registered under the U.S. Securities Act of 1933, as amended (the
“Securities Act”), and may not be offered or sold within the United States or to, or for the account or benefit of, U.S. persons (i) as part of their distribution at any time or (ii) otherwise until 40 days after the later
of the commencement of the offering of the Securities and the date of original issuance of the Securities, except in accordance with Regulation S or Rule 144A or any other available exemption from registration under the Securities Act. Terms used
above have the meanings given to them by Regulation S.” 
 (iv) Such Initial Purchaser has not and will not
enter into any contractual arrangement with any distributor with respect to the distribution of the Securities, except with its affiliates or with the prior written consent of the Company. 
 Terms used in paragraph (a) and this paragraph (b) and not otherwise defined in this Agreement have the meanings given to them by Regulation S. 







 (c) In relation to each Member State of the European Economic Area which has implemented the
Prospectus Directive (each, a “Relevant Member State”), each initial purchaser has represented and agreed that with effect from and including the date on which the Prospectus Directive is implemented in that Relevant Member State (the
“Relevant Implementation Date”) it has not made and will not make an offer of Notes which are the subject of the offering contemplated by this Offering Circular to the public in that Relevant Member State other than: 

(i) to any legal entity which is a qualified investor as defined in the Prospectus Directive; 

(ii) to fewer than 100 or, if the Relevant Member State has implemented the relevant provision of the 2010 PD Amending
Directive, 150, natural or legal persons (other than qualified investors as defined in the Prospectus Directive), as permitted under the Prospectus Directive, subject to obtaining the prior consent of the relevant Dealer or Dealers nominated by the
Issuer for any such offer; or 
 (iii) in any other circumstances falling within Article 3(2) of the Prospectus
Directive, 
 provided that no such offer of Notes shall require the Issuer or any initial purchaser to publish a prospectus pursuant to Article
3 of the Prospectus Directive. 
 For the purposes of this provision, the expression an “offer of Notes to the public” in relation to
any Notes in any Relevant Member State means the communication in any form and by any means of sufficient information on the terms of the offer and the Notes to be offered so as to enable an investor to decide to purchase or subscribe the Notes, as
the same may be varied in that Member State by any measure implementing the Prospectus Directive in that Member State, the expression “Prospectus Directive” means Directive 2003/71/EC (and amendments thereto, including the 2010 PD Amending
Directive, to the extent implemented in the Relevant Member State), and includes any relevant implementing measure in the Relevant Member State and the expression “2010 PD Amending Directive” means Directive 2010/73/EU. 

Each initial purchaser has represented and agreed that: 
 (i) (a) it is a person whose ordinary activities involve it in acquiring, holding, managing or disposing of investments (as principal or agent) for the purposes of its business and (b) it has not
offered or sold and will not offer or sell the Notes other than to persons whose ordinary activities involve them in acquiring, holding, managing or disposing of investments (as principal or as agent) for the purposes of their businesses or who it
is reasonable to expect will acquire, hold, manage or dispose of investments (as principal or agent) for the purposes of their businesses where the issue of the Notes would otherwise constitute a contravention of Section 19 of the FSMA by the
Issuer; 
 (ii) it has only communicated or caused to be communicated and will only communicate or cause to be
communicated an invitation or inducement to engage in investment activity (within the meaning of Section 21 of the FSMA) received by it in connection with the issue or sale of the Notes in circumstances in which Section 21(1) of the FSMA
does not apply to the Issuer or the Guarantors; and 







 (iii) it has complied and will comply with all applicable provisions of the
FSMA with respect to anything done by it in relation to the Notes in, from or otherwise involving the United Kingdom. 
 Each
initial purchaser has represented and agreed that it has not, directly or indirectly, offered or sold and will not, directly or indirectly, offer or sell in the Netherlands any notes with a denomination of less than €50,000 (or its other
currency equivalent) other than to persons who trade or invest in securities in the conduct of a profession or business (which includes banks, stockbrokers, insurance companies, pension funds, other institutional investors and finance companies and
treasury departments of large enterprises) unless one of the other exemptions from or exceptions to the prohibition contained in article 3 of the Dutch Securities Transactions Supervision Act 1995 (Wet toezicht effectenverkeer 1995) is applicable
and the conditions attached to such exemption or exception are complied with. 
 (d) Each Initial Purchaser acknowledges that no
action has been or will be taken by the Company that would permit a public offering of the Securities, or possession or distribution of any of the Time of Sale Information, the Offering Memorandum, any Issuer Written Communication or any other
offering or publicity material relating to the Securities, in any country or jurisdiction where action for that purpose is required. 







 ANNEX D-1 
 Form of Opinion of McAfee & Taft, P.C. for the Company and Guarantors 
 We have acted as special counsel to Chaparral Energy, Inc., a Delaware corporation (the “Issuer”), in connection with the Purchase Agreement dated February
    , 2011 (the “Purchase Agreement”) among (i) the Issuer, (ii) the subsidiaries of the Issuer named therein as parties thereto and as guarantors of the Initial Securities (as defined below)
(collectively, the “Guarantors”), and (iii) Wells Fargo Securities, LLC as representative for the Initial Purchasers listed in Schedule 1 to the Purchase Agreement (the “Initial Purchasers”), relating to the
sale by the Issuer to the Initial Purchasers of $             aggregate principal amount of the Issuer’s 8.25% Senior Notes due 2021 (the “Initial Securities”).
The Issuer and the Guarantors are referred to collectively herein as the “Obligors.” The Initial Securities are being issued under an Indenture dated as of February     , 2011 (the
“Indenture”), by and among the Issuer, the Guarantors and Wells Fargo Bank, National Association, as trustee (the “Trustee”). Capitalized terms used but not defined herein have the meanings assigned to such terms in
the Purchase Agreement. 
 The Obligors and the Initial Purchasers have entered into a Registration Rights Agreement, dated as
of February     , 2011 (the “Registration Rights Agreement”), pursuant to which the Obligors have agreed to file, under certain conditions, with the Securities and Exchange Commission (the
“SEC”), a registration statement under the Securities Act of 1933, as amended (the “Securities Act”), with respect to an offer (the “Exchange Offer”) by the Obligors to the holders of the Initial
Securities to issue and deliver to such holders, in exchange for their Initial Securities, a like principal amount of new notes (the “Exchange Securities”) identical to the Initial Securities in all material respects, except that
the Exchange Securities will not (except in specified circumstances) be subject to restrictions on transfer. 
 We are
furnishing this opinion letter to you pursuant to Section 6(g) of the Purchase Agreement. 
 In rendering the opinions
set forth herein, we have examined and relied on originals or copies, certified or otherwise identified to our satisfaction, of the following: 
 (a) the Issuer’s Preliminary Offering Memorandum dated February 7, 2011 (the “Preliminary Offering Memorandum”) relating to the Initial Securities; 

(b) the Issuer’s Offering Memorandum dated February 7, 2011 (the “Offering Memorandum”) relating to the
Initial Securities; 
 (c) the Pricing Supplement dated February 7, 2011 relating to the Initial Securities (such document,
together with the Preliminary Offering Memorandum, being referred to herein as the “Time of Sale Information”); 
 (d) the Indenture; 
 (e) the form of the Initial Securities and the form of the
Exchange Securities; 
 (f) the global notes executed by the Issuer pursuant to the Indenture, in the aggregate principal amount
of $            , representing the Initial Securities purchased and sold pursuant to the Purchase Agreement with a view toward resale in reliance on Rule 144A under the Securities
Act; 







 (g) the global notes executed by the Issuer pursuant to the Indenture, in the aggregate
principal amount of $            , representing the Initial Securities purchased and sold pursuant to the Purchase Agreement with a view toward resale in reliance on Regulation S
under the Securities Act; 
 (h) the Purchase Agreement; 

(i) the Registration Rights Agreement; 
 (j) the Certificate of Incorporation of the Issuer, certified by the Secretary of State of the State of Delaware as in effect on February     , 2011 and certified by the
Secretary of the Issuer as in effect on each of the dates of the adoption of the resolutions specified in paragraph (t) below, the date of the Purchase Agreement and the date hereof (the “Issuer Charter”); 

(k) the Bylaws of the Issuer (the “Issuer Bylaws”), certified by the Secretary of the Issuer as in effect on each of the
dates of the adoption of the resolutions specified in paragraph (t) below, the date of the Purchase Agreement and the date hereof; 
 (l) the Certificate of Incorporation of Green Country Supply, Inc. (“Green Country Supply”), certified by the Secretary of State of the State of Oklahoma as in effect on February
    , 2011 and certified by the Secretary of Green Country Supply as in effect on each of the dates of the adoption of the resolutions specified in paragraph (t) below, the date of the Purchase Agreement and the date
hereof (the “Green Country Supply Charter”); 
 (m) the Bylaws of Green Country Supply (“Green Country
Supply Bylaws”), certified by the Secretary of Green Country Supply as in effect on each of the dates of the adoption of the resolutions specified in paragraph (t) below, the date of the Purchase Agreement and the date hereof;

 (n) the Certificates of Formation of the Delaware LLCs, certified by the Secretary of State of the State of Delaware as in
effect on February     , 2011 and certified by the respective Secretaries of the Delaware LLCs as in effect on each of the dates of the adoption of the resolutions specified in paragraph (u) below, the date of the
Purchase Agreement and the date hereof (the “Delaware LLCs Certificates of Formation”); 
 (o) the Limited
Liability Company Agreements of the Delaware LLCs, certified by the respective Secretaries of the Delaware LLCs as in effect on each of the dates of the adoption of the resolutions specified in paragraph (u) below, the date of the Purchase
Agreement and the date hereof; 
 (p) the Certificates of Limited Liability Company of the Oklahoma LLCs, certified by the
Secretary of State of the State of Oklahoma as in effect on February     , 2011 and certified by the respective Secretaries of the Oklahoma LLCs as in effect on each of the dates of the adoption of the resolutions
specified in paragraph (u) below, the date of the Purchase Agreement and the date hereof (the “Oklahoma LLCs Certificates of Limited Liability Company”); 
 (q) the Limited Liability Company Agreements of the Oklahoma LLCs, certified by the respective Secretaries of the Oklahoma LLCs as in effect on each of the dates of the adoption of the resolutions
specified in paragraph (v) below, the date of the Purchase Agreement and the date hereof; 
 (r) certificates from the
Secretary of State of the State of Delaware dated February     , 2011 as to the good standing and legal existence under the laws of the State of Delaware of the Issuer and the Delaware LLCs; 







 (s) certificates from the Secretary of State of the State of Oklahoma dated February
    , 2011 as to the good standing and legal existence under the laws of the State of Oklahoma of Green Country Supply and the Oklahoma LLCs; 
 (t) resolutions of the Board of Directors of the Issuer and Green Country Supply, effective as of February     , 2011 certified by the Secretary of the Issuer and the Secretary
of Green Country Supply; 
 (u) resolutions of the Manager of each of the Delaware LLCs and the Oklahoma LLCs, effective as of
February     , 2011, certified by the Secretary of each entity; 
 (v) a certificate dated the date
hereof (the “Opinion Support Certificate”), executed by the President and Chief Executive Officer of the Issuer, in the form attached hereto as Exhibit A; 

(w) any Applicable Orders (as defined below); and 
 (x) each of the Applicable Agreements (as defined below). 
 We have also examined
originals or copies, certified or otherwise identified to our satisfaction, of such records of the Obligors and such agreements, certificates of public officials, certificates of officers or other representatives of the Obligors and others, and such
other documents, certificates and records, as we have deemed necessary or appropriate as a basis for the opinions set forth herein. In our examination, we have assumed the legal capacity of all natural persons, the genuineness of all signatures, the
authenticity of all documents submitted to us as originals, and the conformity to authentic original documents of all documents submitted to us as certified or photostatic copies. As to any facts material to the opinions and statements expressed
herein that we did not independently establish or verify, we have relied, to the extent we deem appropriate, upon (i) oral or written statements and representations of officers and other representatives of the Obligors (including without
limitation the facts certified in the Opinion Support Certificate), (ii) representations made by the Obligors and representations made by the Initial Purchasers in the Purchase Agreement and (iii) statements and certifications of public
officials and others. 
 As used herein the following terms have the respective meanings set forth below: 

“Applicable Agreements” means those agreements and other instruments identified in the Opinion Support Certificate.

 “Applicable Guarantors” means Green Country Supply, the Oklahoma LLCs and the Delaware LLCs. 

“Applicable Obligor Organizational Documents” means, collectively, the following instruments, each in the form reviewed
by us, as indicated above: (i) the Issuer Charter, (ii) the Issuer Bylaws, (iii) the Delaware LLCs Certificates of Formation, (iv) the Oklahoma LLCs Certificates of Limited Liability Company, (v) the Limited Liability
Company Agreements of the Delaware LLCs and the Oklahoma LLCs, (vi) the Green Country Supply Charter and (vi) the Green Country Supply Bylaws. 
 “Applicable Obligors” means the Issuer and the Applicable Guarantors. 
 “Applicable Orders” means those orders or decrees of governmental authorities identified on Schedule 1 to the Opinion Support Certificate. However, officers of the Issuer have
certified in the Opinion Support Certificate that there are no Applicable Orders. 







 “Delaware LLCs” means Chaparral Exploration, L.L.C. and CEI Acquisition,
L.L.C. 
 “Oklahoma LLCs” means NorAm Petroleum, L.L.C., Chaparral Real Estate, L.L.C.,
Chaparral CO2, L.L.C., Chaparral Energy, L.L.C., Chaparral
Resources, L.L.C., CEI Pipeline LLC and Roadrunner Drilling, L.L.C. 
 “Person” means a natural person or a
legal entity organized under the laws of any jurisdiction. 
 “Transaction Documents” means collectively, the
following instruments, each in the form reviewed by us, as indicated above: (i) the Purchase Agreement, (ii) the Registration Rights Agreement, (iii) the Initial Securities and (iv) the Indenture. 

Based upon the foregoing and subject to the limitations, qualifications, exceptions and assumptions set forth herein, we are of the
opinion that: 
 1. The Issuer is a corporation formed, validly existing and in good standing under the General Corporation Law
of the State of Delaware (the “DGCL”). Green Country Supply is a corporation formed, validly existing and in good standing under the Oklahoma Business Corporation Act (the “OBCA”). The Delaware LLCs are limited
liability companies formed, validly existing and in good standing under the Delaware Limited Liability Company Act (the “DLLCA”). The Oklahoma LLCs are limited liability companies formed, validly existing and in good standing under
the Oklahoma Limited Liability Company Act (the “OLLCA”). 
 2. The Issuer has the corporate power and
corporate authority under the DGCL to (i) execute and deliver, and to incur and perform all of its obligations under, each of the Transaction Documents to which it is a party and (ii) carry on its business and own and lease its properties
as described in the Time of Sale Information and the Offering Memorandum. Green Country Supply has the corporate power and corporate authority under the OBCA to (i) executive and deliver, and to incur and perform all of its obligations under,
each of the Transaction Documents to which it is a party and (ii) carry and its business and own and lease its properties as described in the Time of Sale Information and the Offering Memorandum. The Delaware LLCs have the limited liability
company power and authority under the DLLCA to (i) execute and deliver, and to incur and perform all of their obligations under, the Transaction Documents to which they are parties and (ii) to carry on their business and own and lease
their properties as described in the Time of Sale Information and the Offering Memorandum. The Oklahoma LLCs have the limited liability company power and authority under the OLLCA to (i) execute and deliver, and to incur and perform all of
their obligations under, the Transaction Documents to which they are parties and (ii) to carry on their business and own and lease their properties as described in the Time of Sale Information and the Offering Memorandum. 

3. Each of the Transaction Documents, and the issuance and sale of the Initial Securities pursuant to the Purchase Agreement and the
Indenture, has been duly authorized by the Issuer, and each of the Transaction Documents has been duly executed and delivered by the Issuer. The Exchange Securities have been duly authorized by the Issuer. Each of the Purchase Agreement, the
Registration Rights Agreement and the Indenture has been duly authorized, executed and delivered by the Applicable Guarantors. 

4. None of (i) the execution and delivery by or on behalf of the Applicable Obligors of, nor the performance of their respective
obligations under, each of the Transaction Documents to which it is a party, each in accordance with its terms, (ii) the offering, issuance, sale and delivery of the Initial Securities to the Initial Purchasers pursuant to the Purchase
Agreement, (iii) the offering, issuance, exchange 







 
and delivery of the Exchange Securities pursuant to the Exchange Offers contemplated by the Registration Rights Agreement in the manner therein contemplated, (iv) the issuance of the
guaranties of the Initial Securities by the Applicable Guarantors or (v) the issuance of the guaranties of the Exchange Securities by the Applicable Guarantors at such time as the Exchange Securities are issued pursuant to the Exchange Offer
contemplated by the Registration Rights Agreement in the manner therein contemplated, (A) constituted, constitutes or will constitute (1) a violation of any of the Applicable Obligor Organizational Documents or (2) a breach or
violation, or a default (or an event which, with notice or passage of time or both, would constitute a default) under any Applicable Agreement, (B) resulted, results or will result in any violation of (1) the applicable laws of the State
of Oklahoma, (2) the applicable laws of the United States of America, (3) the DGCL or DLLCA or (4) Regulation T, U or X of the Federal Reserve Board, or (C) resulted, results or will result in the contravention of any Applicable
Order. 
 5. No Governmental Approval, which has not been obtained or taken and is not in full force and effect, is required to
authorize, or is required for the execution and delivery by each of the Applicable Obligors of, the Transaction Documents to which it is a party or the incurrence or performance of its obligations thereunder, or the enforceability of any of such
Transaction Documents against any of the Applicable Obligors that is a party thereto. As used in this paragraph, “Governmental Approval” means any consent, approval, license, authorization or validation of, or filing, recording or
registration with, any executive, legislative, judicial, administrative or regulatory body of the State of Oklahoma or the United States of America, pursuant to (i) applicable laws of the State of Oklahoma, (ii) applicable laws of the
United States of America, (iii) the DGCL or (iv) the DLLCA. 
 6. The statements under the captions “Description
of the notes” “and “Exchange offer; Registration rights” in the Preliminary Offering Memorandum and the Offering Memorandum, insofar as such statements purport to summarize certain provisions of documents referred to therein and
reviewed by us as described above, fairly summarize such provisions in all material respects, subject to the qualifications and assumptions stated therein. 
 7. The statements in the Preliminary Offering Memorandum and the Offering Memorandum under the captions “Certain U.S. federal income tax considerations,” and “Business and properties —
Environmental matters and regulation,” insofar as they refer to statements of law or legal conclusions, fairly summarize the matters referred to therein in all material respects, subject to the qualifications and assumptions stated therein.

 8. The Indenture constitutes a valid and binding obligation of each of the Applicable Obligors, enforceable against each of
them in accordance with its terms. 
 9. When authenticated by the Trustee in the manner provided in the Indenture and delivered
to and paid for by the Initial Purchasers in accordance with the Purchase Agreement, the Initial Securities will constitute valid and binding obligations of the Issuer, entitled to the benefits of the Indenture and enforceable against the Issuer in
accordance with its terms. 
 10. When the Initial Securities have been authenticated by the Trustee in the manner provided in
the Indenture and delivered to and paid for by the Initial Purchasers in accordance with the Purchase Agreement, the guarantees of the Initial Securities included in the Indenture will constitute valid and binding obligations of the Applicable
Guarantors, enforceable against the Applicable Guarantors in accordance with the terms of the Indenture. 
 11. When validly
executed by the Issuer and authenticated by the Trustee in the manner provided in the Indenture and delivered in exchange for Initial Securities pursuant to the Exchange Offer 







 
contemplated by the Registration Rights Agreement, the Exchange Securities will constitute valid and binding obligations of the Issuer, entitled to the benefits of the Indenture and enforceable
against the Issuer in accordance with its terms. 
 12. When the Exchange Securities have been validly executed by the Issuer
and authenticated by the Trustee in accordance with the provisions of the Indenture and delivered in exchange for Initial Securities pursuant to the Exchange Offer contemplated by the Registration Rights Agreement, the guarantees included in the
Indenture of the Exchange Securities will constitute valid and binding obligations of the Applicable Guarantors, enforceable against the Applicable Guarantors in accordance with the terms of the Indenture. 

13. The Registration Rights Agreement constitutes a valid and binding obligation of each of the Applicable Obligors, enforceable against
each of them in accordance with its terms. 
 14. Assuming (i) the accuracy of the representations and warranties of the
Obligors set forth in paragraphs (ee), (ff), (gg) and (hh) of Section 3 of the Purchase Agreement, (ii) the due performance by the Obligors and the Initial Purchasers of the covenants and agreements set forth in the Purchase Agreement,
(iii) the compliance by the Initial Purchasers with the offering and transfer procedures and the restrictions described in the Offering Memorandum, (iv) the accuracy of the representations and warranties of the Initial Purchasers set forth
in paragraph (b) of Section 1 of the Purchase Agreement (including Annex C thereto), (v) the accuracy of the representations and warranties made or deemed to be made in accordance with the Purchase Agreement and the Offering
Memorandum by purchasers to whom the Initial Purchasers initially resell the Initial Securities, and (vi) that purchasers to whom the Initial Purchasers initially resell the Initial Securities have been made aware of the information set forth
in the Offering Memorandum under the caption “Transfer restrictions,” (A) the offer, issue, sale and delivery of the Initial Securities (and the guaranties thereof by the Applicable Guarantors) to the Initial Purchasers and the
initial resale of the Initial Securities (and the guaranties thereof by the Applicable Guarantors) by the Initial Purchasers in accordance with paragraph (b) of Section 1 of the Purchase Agreement (including Annex C thereto), each in the
manner contemplated by the Purchase Agreement and the Offering Memorandum, do not require registration under the Securities Act; provided, however, that we express no opinion as to any subsequent resale of any Initial Securities (and the
guaranties thereof by the Guarantors) or any Exchange Securities (and the guaranties thereof by the Guarantors), and (B) prior to the consummation of the Exchange Offer or the effectiveness of the Shelf Registration Statement (as defined in the
Registration Rights Agreement), the Indenture is not required to be qualified under the Trust Indenture Act of 1939, as amended. 
 15. The Issuer is not an “investment company” within the meaning of said term as used in the Investment Company Act of 1940, as amended. 

In addition, we have participated in conferences with officers and other representatives of the Obligors, the independent registered
public accounting firm and the independent reserve engineers for the Obligors, your counsel and your representatives at which the contents of the Time of Sale Information and the Offering Memorandum and related matters were discussed and, although
we have not independently verified and are not passing upon, and do not assume any responsibility for, the accuracy, completeness or fairness of the statements contained in the Time of Sale Information and the Offering Memorandum (except as and to
the extent set forth in paragraphs 6 and 7 above), on the basis of the foregoing (relying with respect to factual matters to the extent we deem appropriate upon statements by officers and other representatives of the Obligors), no facts have come to
our attention that have led us to believe that (i) the Time of Sale Information, as of          p.m. on February     , 2011 (which you have informed us is a time prior to
the time of the first sale of the Initial Securities by any Initial Purchaser), contained an untrue 







 
statement of a material fact or omitted to state any material fact necessary to make the statements therein, in light of the circumstances under which they were made, not misleading, or
(ii) the Offering Memorandum, as of its date and as of the date hereof, contained or contains an untrue statement of a material fact or omitted or omits to state any material fact necessary to make the statements therein, in light of the
circumstances under which they were made, not misleading, it being understood that we express no opinion, statement or belief in this letter with respect to (i) the historical financial statements and related schedules, including the notes and
schedules thereto and the auditor’s reports thereon and (ii) any other reserve, financial or accounting data, included in, or excluded from, the Offering Memorandum or the Time of Sale Information. 

We express no opinion as to the laws of any jurisdiction other than (i) applicable laws of the State of Oklahoma,
(ii) applicable laws of the United States of America, (iii) certain other specified laws of the United States of America to the extent referred to specifically herein, (iv) the DGCL and (v) the DLLCA. References herein to
“applicable laws” mean those laws, rules and regulations that, in our experience, are normally applicable to transactions of the type contemplated by the Transaction Documents, without our having made any special investigation as to the
applicability of any specific law, rule or regulation, and that are not the subject of a specific opinion herein referring expressly to a particular law or laws; provided however, that such references to “applicable laws” (including
without limitation those appearing in paragraphs 4 and 5 above) do not include any municipal or other local laws, rules or regulations, or any antifraud, environmental, labor, securities, tax, insurance or antitrust, laws, rules or regulations.

 Our opinions expressed herein are subject to the following additional assumptions and qualifications: 

(i) The opinions set forth in paragraph 1 above as to the valid existence and good standing of the Issuer and the other entities
mentioned in such paragraph are based solely upon our review of certificates and other communications from the appropriate public officials. 
 (ii) In rendering the opinions set forth in paragraph 4 above regarding Applicable Agreements, we do not express any opinion, however, as to whether the execution or delivery by the Obligors of the
Transaction Documents, or the incurrence or performance by any of the Obligors of its obligations thereunder, will constitute a violation of, or a default under or as a result of, any covenant, restriction or provision, in each case with respect to
any financial ratio or test or any aspect of the financial condition or results of operation of any of the Obligors. 
 (iii)
The opinion set forth in paragraph 7 above with respect to United States federal income tax considerations is based upon our interpretations of current United States federal income tax law, including court authority and existing final and temporary
U.S. Treasury regulations, which are subject to change both prospectively and retroactively, and upon the assumptions and qualifications discussed herein. We note that such opinion represents merely our best legal judgment on the matters presented
and that others may disagree with our conclusion. Such opinion is not binding upon the Internal Revenue Service or courts, and there is no guarantee that the Internal Revenue Service will not successfully challenge our conclusions. No assurance can
be given that future legislative, judicial or administrative changes, on either a prospective or retroactive basis, would not adversely affect the accuracy of our conclusions. 
 (iv) Treasury Circular 230 Disclosure. This disclosure is provided to comply with Treasury Circular 230. The opinion set forth in paragraph 7 of this letter is not intended or written to be used,
and cannot be used, by any person for the purpose of avoiding tax penalties that may be imposed on the person. Such opinion was written to support the promoting, marketing or recommending of the transactions or matters addressed by this written
advice, and the taxpayer should seek advice based on the taxpayer’s particular circumstances from an independent tax advisor. No limitation has been imposed by our firm on disclosure of the tax treatment or tax structure of the transaction.








 (v) Our opinions in paragraphs 8, 9, 10, 11, 12 and 13 above may be: 

(1) limited by applicable bankruptcy, insolvency, reorganization, moratorium, fraudulent conveyance or transfer or other
similar laws relating to or affecting the rights of creditors generally; and 
 (2) subject to the application of
general principles of equity (regardless of whether considered in a proceeding in equity or at law), including, without limitation, the possible unavailability of specific performance, injunctive relief or any other equitable remedy and concepts of
materiality, reasonableness, good faith and fair dealing. 
 (vi) With respect to our opinions in paragraphs 8, 9, 10, 11, 12
and 13, the Transaction Documents state that they are governed by the laws of the State of New York. Section 162 of Title 15 of the Oklahoma Statutes provides as follows: 
 A contract is to be interpreted according to the law and usage of the place where it is to be performed, or, if it does not indicate a place of performance, according to the law and usage of the place
where it is made. 
 In addition to the general choice of law rule stated above, 12A Okla. Stat. § 1-301(1) states as
follows: 
 Except as provided hereafter in this section, when a transaction bears a reasonable relation to this state and also
to another state or nation, the parties may agree that the law either of this state or of such other state or nation shall govern their rights and duties... 
 The Oklahoma courts have held in cases construing choice of law provisions in promissory notes that an express provision by the parties designating a place of performance or providing a specific choice of
law will be given effect if the designated state bears a reasonable relation to the transaction, unless to give it effect would violate the public policy of Oklahoma. Although we have found no Oklahoma cases specifically addressing the choice of law
applicable to a note purchase agreement or a guaranty, we believe that, based on such decisions, an Oklahoma court would give effect to the choice of law provisions in the Transaction Documents that call for the application of New York law as long
as Oklahoma public policy is not violated. 
 (vii) We express no opinion as to the effect of the laws of any jurisdiction in
which any holder of any Initial Security or Exchange Security is located (other than the State of Oklahoma) that limit the interest, fees or other charges such holder may impose for the loan or use of money or other credit. 

(viii) We express no opinion as to the validity, binding effect or enforceability of [Section 4.9] of the Indenture or the
first two sentences of [Section 7.7 of the Indenture]. 







 (ix) We express no opinion as to the validity, effect or enforceability of any provisions:

 (1) purporting to establish particular notice periods or actions as “reasonable,” to establish
evidentiary standards or limitations periods for suits or proceedings to enforce such documents or otherwise, to establish certain determinations (including determinations of contracting parties and judgments of courts) as conclusive or conclusive
absent manifest error, to commit the same to the discretion of any Person or permit any Person to act in its sole judgment or to waive rights to notice (including, without limitation, notice of acceleration, demands, defenses, counterclaims or
setoffs); 
 (2) providing that the assertion or employment of any right or remedy shall not prevent the
concurrent assertion or employment of any other right or remedy, or that each and every remedy shall be cumulative and in addition to every other remedy or that any delay or omission to exercise any right or remedy shall not impair any other right
or remedy or constitute a waiver thereof; 
 (3) relating to severability or separability; 

(4) purporting to limit the liability of, or to exculpate, any Person, including without limitation any provision that
purports to waive liability for violation of securities laws; 
 (5) that constitute an agreement to agree in the
future on any matter; 
 (6) that relate to indemnification, contribution or reimbursement obligations to the
extent any such provisions (A) would purport to require any Person to provide indemnification, contribution or reimbursement in respect of the negligence, recklessness, willful misconduct or unlawful or wrongful behavior of any Person,
(B) violate any law, rule or regulation (including any federal or state securities law, rule or regulation) or (C) are determined to be contrary to public policy; 

(7) purporting to establish any obligation of any party as absolute or unconditional regardless of the occurrence or
non-occurrence or existence or nonexistence of any event or other state of facts; 
 (8) purporting to obligate
any party to conform to a standard that may not be objectively determinable or employing items that are vague or have no commonly accepted meaning in the context in which used; 

(9) purporting to require the payment of liquidated damages, premiums, additional interest or similar amounts, however
denominated, for failure to timely comply with obligations under the Registration Rights Agreement; or 
 (10)
purporting to require that all amendments, waivers and terminations be in writing or the disregard of any course of dealing or usage of trade. 
 (x) In making our examination of executed documents, we have assumed (except to the extent that we expressly opine above) (1) the valid existence and good standing of each of the parties thereto,
(2) that such parties had the power and authority, corporate, partnership, limited liability company or other, to enter into and to incur and perform all their obligations thereunder, (3) the due authorization by all requisite action,
corporate, partnership, limited liability company or other, and the due execution and delivery by such parties of such documents and (4) to the extent such documents purport to constitute agreements, that each of such documents constitutes the
legal, valid and binding obligation of each party 







 
thereto, enforceable against such party in accordance with its terms. In this paragraph (x), all references to parties to documents shall be deemed to mean and include each of such parties, and
each other person (if any) directly or indirectly acting on its behalf. 
 (xi) Except to the extent that we expressly opine
above, we have assumed that the execution and delivery of the Transaction Documents, and the incurrence and performance of the obligations thereunder of the parties thereto do not and will not contravene, breach, violate or constitute a default
under (with the giving of notice, the passage of time or otherwise) (1) the certificate or articles of incorporation, certificate of formation, charter, bylaws, limited liability company agreement, limited partnership agreement or similar
organic document of any such party, (2) any contract, indenture, mortgage, loan agreement, note, lease or other agreement or instrument, (3) any statute, law, rule, or regulation, (4) any judicial or administrative order or decree of
any governmental authority, or (5) any consent, approval, license, authorization or validation of, or filing, recording or registration with, any governmental authority, in each case, to which any party to the Transaction Documents or any of
its subsidiaries or any of their respective properties may be subject, or by which any of them may be bound or affected. Further, we have assumed the compliance by each such party, other than the Obligors, with all laws, rules and regulations
applicable to it, as well as the compliance by the each of the Obligors, and each other person (if any) directly or indirectly acting on its behalf, with all laws, rules and regulations that may be applicable to it solely by virtue of the particular
nature of the business conducted by it or any goods or services produced or rendered by it or property owned, operated or leased by it, or any other facts pertaining specifically to it. In this paragraph (xi), all references to parties to the
Transaction Documents, other than the first such reference, shall be deemed to mean and include each of such parties, and each other person (if any) directly or indirectly acting on its behalf. 

(xii) Without limiting the generality of our qualification in clause (1) of paragraph (v) above, we express no opinion as to
the applicability or effect of any preference, fraudulent transfer or conveyance, or similar law on the Transaction Documents or any transactions contemplated thereby or any opinion expressed herein. 

(xiii) Except to the extent that we expressly opine above, we have assumed that no authorization, consent or other approval of, notice to
or registration, recording or filing with any court, governmental authority or regulatory body (other than routine informational filings, filings under the Securities Act and filings under the Securities Exchange Act of 1934, as amended) is required
to authorize, or is required in connection with the transactions contemplated by the Transaction Documents, the execution or delivery of thereof by or on behalf of any party thereto or the incurrence or performance by any of the parties thereto of
its obligations thereunder. 
 (xiv) The opinion expressed in paragraph 15 above is given in reliance upon facts set forth in
the Opinion Support Certificate. 
 (xv) We advise you that certain of the guaranty and surety waivers contained in the
Indenture may be unenforceable in whole or in part. 
 (xvi) We understand that you are receiving a separate opinion letter
dated the date hereof from Robert W. Kelly II, Esq., General Counsel of the Issuer. We (1) have assumed the accuracy of the opinions and statements expressed therein and (2) assume no responsibility for such opinions and statements.

 (xvii) We have assumed that the sale of the Initial Securities pursuant to Regulation S under the Securities Act is not part
of a plan or scheme to evade the registration provisions of the Securities Act. 







 This opinion is being furnished only to you in connection with the sale of the Initial
Securities under the Purchase Agreement occurring today and is solely for your benefit and is not to be used, circulated, quoted or otherwise referred to for any other purpose or relied upon by any other Person, including any purchaser of any
Initial Securities or Exchange Securities from you and any subsequent purchaser of any Initial Securities or Exchange Securities, without our express written permission. The opinions expressed herein are as of the date hereof only and are based on
laws, orders, contract terms and provisions, and facts as of such date, and we disclaim any obligation to update this opinion letter after such date or to advise you of changes of facts stated or assumed herein or any subsequent changes in
applicable law. 
  

			
		  	Very truly yours,
		
		  	McAfee & Taft A Professional Corporation








 Exhibit A 
 Chaparral Energy, Inc. 
 Officer’s Certificate 

February     , 2011 
 Reference is made to the Purchase Agreement dated as of February     , 2011 (the “Purchase Agreement”) by and among (i) Chaparral Energy, Inc., a Delaware
corporation (the “Company”), (ii) the subsidiaries of the Company named therein as parties thereto and as guarantors of securities purchased and sold pursuant thereto, and (iii) Wells Fargo Securities, LLC, as
representative of the initial purchasers of securities purchased and sold pursuant thereto (collectively, the “Initial Purchasers”). The undersigned, Mark A. Fischer, hereby certifies that he is the Chief Executive Officer and
President of the Company. 
 Such officer understands that pursuant to the Purchase Agreement, McAfee & Taft A
Professional Corporation (“McAfee & Taft”), special counsel to the Company, is delivering to the Initial Purchasers an opinion letter dated the date hereof (the “Opinion Letter”). Such officer further
understands that McAfee & Taft is relying on this certificate and the statements made herein in rendering certain of the opinions expressed in the Opinion Letter. 
 With regard to the foregoing, the undersigned certifies that he has made due inquiry of all persons necessary or appropriate to verify or confirm the statements contained herein, and he further certifies
the following: 
 1. Attached as a schedule to either the Company’s 2009 Form 10-K or its Form 10-Q for the Quarter ended
September 30, 2010 is a true, accurate and complete list of every indenture, mortgage, deed of trust, loan, purchase or credit agreement, lease or other agreement (collectively, the “Applicable Agreements”) that is both
(a) material in relation to the business, operations, affairs, financial condition, assets, or properties of the Company and its subsidiaries, considered as a single enterprise, and (b) an instrument by which the Company or any of its
subsidiaries is bound or by which the Company or any of its subsidiaries or any of its properties may be bound or affected. 

2. Attached as Schedule 1 to this Officer’s Certificate is a true, accurate and complete list of every order, judgment or
decree (collectively, the “Applicable Orders”) of any governmental authority by which the Company or any of its subsidiaries or any of its properties is bound, that is material in relation to the business, operations, affairs,
financial condition, assets, or properties of the Company and its subsidiaries, considered as a single enterprise. 
 3. The
Company and its subsidiaries are engaged in businesses other than that of investing, reinvesting, owning, holding or trading in Securities. Furthermore, the Company and its subsidiaries: 

(a) are not engaged primarily, nor does any of them hold itself out as being engaged primarily, nor does any of them propose to engage
primarily, in the business of investing, reinvesting, or trading in Securities; 
 (b) are not engaged, nor do any of them
propose to engage, in the business of issuing Face-Amount Certificates of the Installment Type, nor has any of them been engaged in such business and has any such certificates outstanding; 







 (c) are not engaged, nor does any of them propose to engage, in the business of investing,
reinvesting, owning, holding or trading in Securities (other than Securities of its respective subsidiaries); and 
 (d) do not
own, nor does any of them propose to acquire, Investment Securities having a value exceeding 40 percent of the value of its total assets (exclusive of Government Securities and cash items) on an unconsolidated basis. 

4. The Company and its subsidiaries do not own, and none of the proceeds from the offering of notes contemplated by the Purchase
Agreement will be used directly or indirectly to purchase or carry, any “margin stock” as defined in Regulation U promulgated by the Board of Governors of the Federal Reserve System. 

As used in paragraph 3 of this certificate: 
 “Face-Amount Certificate of the Installment Type” means any certificate, investment contract or other Security which represents an obligation on the part of its issuer to pay a stated or
determinable sum or sums at a fixed or determinable date or dates more than twenty-four months after the date of issuance, in consideration of the payment of periodic installments of a stated or determinable amount; 

“Government Security” means any Security issued or guaranteed as to principal or interest by the United States of
America, or by an entity controlled or supervised by and acting as an instrumentality of the Government of the United States of America pursuant to authority granted by the Congress of the United States of America; or any certificate of deposit for
any of the foregoing; 
 “Investment Securities” means all Securities, except (i) Government Securities
and (ii) Securities issued by majority-owned subsidiaries of the owner, which subsidiaries: (A) are not themselves engaged in any activity described in clauses (a) through (c) of paragraph 3 of this certificate; and (B) do
not own or propose to own Investment Securities having a value exceeding 40 percent of the value of each such subsidiary’s total assets (exclusive of Government Securities and cash items) on an unconsolidated basis; and 

“Security” or “Securities” means any note, stock, treasury stock, bond, debenture, evidence of
indebtedness, certificate of interest or participation in any profit-sharing agreement, collateral-trust certificate, preorganization certificate or subscription, transferable share, investment contract, voting-trust certificate, certificate of
deposit for a security, fractional undivided interest in oil, gas or other mineral rights, any put, call, straddle, option or privilege on any security (including a certificate of deposit) or on any group or index of securities (including any
interest therein or based on the value thereof), or any put, call, straddle, option or privilege entered into on a national securities exchange relating to foreign currency, or, in general, any interest or instrument commonly known as a
“security,” or any certificate of interest or participation in, temporary or interim certificate for, receipt for, guarantee of, or warrant or right to subscribe to or purchase, any of the foregoing. 

IN WITNESS WHEREOF the undersigned has executed this Officer’s Certificate as of the date first written above. 

 

	
	  

	Mark A. Fischer









 Schedule 1 
 Applicable Orders 
 None. 







 ANNEX D-2 
 Form of Opinion of Robert W. Kelly II, Esq., General Counsel of the Company 
 Ladies and
Gentlemen: 
 This legal opinion is provided to you pursuant to Section 6(g) of the Purchase Agreement, dated February
    , 2011 (the “Purchase Agreement”), between (i) Chaparral Energy, Inc., a Delaware corporation (the “Company”), (ii) the unrestricted subsidiaries of the Company named therein
as parties thereto and listed in Schedule 2 thereto as guarantors (collectively, the “Guarantors”) and (iii) Wells Fargo Securities, LLC, [others] (the “Initial Purchasers”) relating to the issuance and sale by
the Company of $400,000,000 aggregate principal amount of 8.25% Senior Notes due 2021 (the “Securities”). Capitalized terms used herein, which are not otherwise defined, shall have the same meaning assigned to such term under the
Purchase Agreement. 
 In my capacity as counsel to the Company, I, or attorneys over whom I exercise supervision, have examined
the preliminary Offering Memorandum dated February     , 2011 (the “Preliminary Offering Memorandum”, as supplemented by the Pricing Supplement dated February     , 2011 (the
“Pricing Supplement” and, together with the Preliminary Offering Memorandum, the “Time of Sale Information”) and the final Offering Memorandum dated February     , 2011 related to the offering and the
sale of the Securities (the “Offering Memorandum”). In addition, I, or attorneys over whom I exercise supervision, have examined the originals, or copies identified to our satisfaction, of such corporate records of the Company and
its subsidiaries, including the Guarantors, certificates of public officials, officers of the Company and its subsidiaries, including the Guarantors, and other persons and such other documents, agreements and instruments as I have deemed necessary
as a basis for the opinions hereinafter expressed. 
 Based on the foregoing, I am of the opinion that: 

1. The Company has been duly qualified as a foreign corporation to transact business and is in good standing in the State
of Oklahoma. 
 2. The Guarantors are organized in the states set opposite their names on Schedule 2 of the
Purchase Agreement (the “Applicable Guarantors,” and each an “Applicable Guarantor”) and each has been duly formed, is validly existing as a corporation or limited liability company, as the case may be, in good
standing under the laws of its respective state, and has the corporate or limited liability company power and authority to own, lease and operate its properties and to conduct its business as described in the Time of Sale Information and the
Offering Memorandum. 
 3. Each of the Purchase Agreement, the Registration Rights Agreement, the Indenture and
the Securities, and the issuance and sale of the Securities pursuant to the Purchase Agreement and the Indenture, has been duly authorized by the Sole Member of the Applicable Guarantors or in the case of Green Country Supply, Inc., its Board of
Directors, and each of the Purchase Agreement, the Registration Rights Agreement and the Indenture, including the guarantee of the Securities and Exchange Securities pursuant to the Indenture, has been validly executed and delivered by each of the
Applicable Guarantors. 







 4. The execution, delivery and performance of the Purchase Agreement, the
Registration Rights Agreement, the Indenture and the Securities by the Company and the Guarantors, the compliance by the Company and the Guarantors with all the provisions thereof and the consummation of the transactions contemplated hereby and
thereby will not, to my knowledge, (A) violate any indenture, loan agreement, mortgage, lease or other agreement or instrument to which the Company or any Guarantor is a party or by which the Company or any Guarantor or their respective
property is bound or (B) violate or conflict with any judgment, order or decree of any court or governmental body or agency having jurisdiction over the Company or any Guarantor or their respective property, except in each case, for such
violations as would not have a Material Adverse Effect. 
 5. To my knowledge after due inquiry, there are no
legal or governmental proceedings required to be described in the Time of Sale Information and the Offering Memorandum which are not described as required or of any contracts or documents of a character required to be described in the Time of Sale
Information and the Offering Memorandum which are not described as required, and in each case insofar as such descriptions constitute summaries of the legal matters, documents or proceedings referred to in the Time of Sale Information and the
Offering Memorandum, fairly present as of the date of the Purchase Agreement the information disclosed in the Time of Sale Information and the Offering Memorandum in all material aspects, it being understood that I express no opinion as to the
financial statements or schedules or other financial data contained in the Time of Sale Information and the Offering Memorandum. 
 The opinions expressed herein are limited to the federal laws of the United States and, to the extent relevant hereto, the laws of the State of Oklahoma, as currently in effect. I assume no obligation to
supplement this opinion if any applicable laws change after the date hereof or if I become aware of any facts that might change the opinions expressed herein after the date hereof. 

This opinion is given as of the date hereof and is solely for the benefit of the Initial Purchasers and the Trustee in connection with
the transactions contemplated by the Purchase Agreement. This opinion may be relied upon by McAfee Taft A Professional Corporation. in connection with their opinion rendered in connection with the transactions contemplated by the Purchase Agreement.
This opinion may not be relied upon for any other purpose or relied upon by any other person for any purpose without my prior written consent. 
  

	
	Very truly yours,
	
	Robert W. Kelly II
	
	Senior Vice President and General Counsel









 Exhibit A 
 Form of Registration Rights Agreement 
 [Provided separately]