RSP Permian, Inc. Common Stock UNDERWRITING AGREEMENT

Exhibit 1.1

Execution Version

15,000,000

RSP Permian, Inc.

Common Stock

UNDERWRITING AGREEMENT

May 18, 2017

Xxxxxxx Lynch, Pierce, Xxxxxx & Xxxxx

Incorporated

Xxx Xxxxxx Xxxx

Xxx Xxxx, Xxx Xxxx 00000

Ladies and Gentlemen:

Certain stockholders of RSP Permian, Inc., a Delaware corporation (the “Company”), named in Schedule I attached hereto (each individually a “Selling Stockholder” and, collectively, the “Selling Stockholders”), propose to sell an aggregate of 15,000,000 shares (the “Firm Stock”) of the Company’s common stock, par value $0.01 per share (the “Common Stock”). In addition, the Selling Stockholders propose to grant to Xxxxxxx Lynch, Pierce, Xxxxxx & Xxxxx Incorporated (the “Underwriter”) an option to purchase up to an aggregate of 2,250,000 additional shares of the Common Stock on the terms set forth in Section 3 (the “Option Stock”). The Firm Stock and the Option Stock, if purchased, are hereinafter collectively called the “Stock.” This agreement (the “Agreement”) is to confirm the agreement concerning the purchase of the Stock from the Selling Stockholders by the Underwriter.

1. Representations and Warranties of the Company. The Company represents and warrants that:

(a) An automatic shelf registration statement on Form S-3 relating to the Stock has (i) been prepared by the Company in conformity with the requirements of the Securities Act of 1933, as amended (the “Securities Act”), and the rules and regulations of the Securities and Exchange Commission (the “Commission”) thereunder; (ii) been filed with the Commission under the Securities Act; and (iii) become effective under the Securities Act. Copies of such registration statement and any amendment thereto have been delivered by the Company to you. As used in this Agreement:

(i) “Applicable Time” means 6:45 p.m. (New York City time) May 18, 2017;

(ii) “Effective Date” means the date and time as of which the Registration Statement, or the most recent post-effective amendment thereto, became, or is deemed to have become, effective in accordance with the rules and regulations under the Securities Act;

(iii) “Issuer Free Writing Prospectus” means each “issuer free writing prospectus” (as defined in Rule 433(h) under the Securities Act);

(iv) “Preliminary Prospectus” means any preliminary prospectus relating to the Stock included in the Registration Statement or filed with the Commission pursuant to Rule 424(b) under the Securities Act;

(v) “Pricing Disclosure Package” means, as of the Applicable Time, the most recent Preliminary Prospectus, together with the information included in Schedule III hereto and each Issuer Free Writing Prospectus filed or used by the Company on or before the Applicable Time, other than a road show that is an Issuer Free Writing Prospectus but is not required to be filed under Rule 433 under the Securities Act;

(vi) “Prospectus” means the final prospectus relating to the Stock, as filed with the Commission pursuant to Rule 424(b) under the Securities Act; and

(vii) “Registration Statement” means the registration statement, as amended as of the Effective Date, relating to the offering, issuance and sale of the Stock, including any Preliminary Prospectus or the Prospectus, all exhibits to such registration statement and including the information deemed by virtue of Rule 430B under the Securities Act to be part of such registration statement as of the Effective Date.

Any reference to any Preliminary Prospectus or the Prospectus shall be deemed to refer to and include any documents incorporated by reference therein pursuant to Form S-3 under the Securities Act as of the date of such Preliminary Prospectus or the Prospectus, as the case may be. Any reference to the “most recent Preliminary Prospectus” shall be deemed to refer to the latest Preliminary Prospectus included in the Registration Statement or filed pursuant to Rule 424(b) under the Securities Act prior to or on the date hereof. Any reference to any amendment or supplement to any Preliminary Prospectus or the Prospectus shall be deemed to refer to and include any document filed under the Securities Exchange Act of 1934, as amended (the “Exchange Act”), after the date of such Preliminary Prospectus or the Prospectus, as the case may be, and before the date of such amendment or supplement and incorporated by reference in such Preliminary Prospectus or the Prospectus, as the case may be; and any reference to any amendment to the Registration Statement shall be deemed to include any document filed with the Commission pursuant to Section 13(a) or 15(d) of the Exchange Act after the Effective Date and before the date of such amendment that is incorporated by reference in the Registration Statement. Any registration statement filed pursuant to Rule 462(b) under the Securities Act is herein called the “Rule 462(b) Registration Statement” and, after such filing, the term “Registration Statement” shall include the Rule 462(b) Registration Statement. The Commission has not issued any order preventing or suspending the use of any Preliminary Prospectus or the Prospectus or suspending the effectiveness of the Registration Statement, and no proceeding or examination for such purpose has been instituted or threatened by the Commission. The Commission has not notified the Company of any objection to the use of the form of the Registration Statement or any post-effective amendment thereto.

(b) The Company was not at the time of initial filing of the Registration Statement and at the earliest time thereafter that the Company or another offering participant made a bona fide offer (within the meaning of Rule 164(h)(2) under the Securities Act) of the Stock, is not on the date hereof and will not be on the applicable Delivery Date, an “ineligible issuer” (as defined in Rule 405 under the Securities Act).

(c) The Company has been since the time of initial filing of the Registration Statement and continues to be a “well-known seasoned issuer” (as defined in Rule 405 under the Securities Act) eligible to use Form S-3 for the offering of the Stock,including not having been an “ineligible issuer” (as defined in Rule 405 under the Securities Act) at any such time or date. The Registration Statement is an “automatic shelf registration statement” (as defined in Rule 405 under the Securities Act)and was filed not earlier than the date that is three years prior to the applicable Delivery Date.

(d) The Registration Statement conformed and will conform in all material respects on the Effective Date and on the applicable Delivery Date, and any amendment to the Registration Statement filed after the date hereof will conform in all material respects when filed, to the requirements of the Securities Act and the rules and regulations thereunder. The most recent Preliminary Prospectus conformed, and the Prospectus will conform, in all material respects when filed with the Commission pursuant to Rule 424(b) under the Securities Act and on the applicable Delivery Date to the requirements of the Securities Act and the rules and regulations thereunder. The documents incorporated by reference in any Preliminary Prospectus or the Prospectus conformed, and any further documents so incorporated will conform, in all material respects to the requirements of the Exchange Act or the Securities Act, as applicable, and the rules and regulations of the Commission thereunder.

(e) The Registration Statement did not, as of the Effective Date, contain an untrue statement of a material fact or omit to state a material fact required to be stated therein or necessary to make the statements therein not misleading; provided, however, that no representation or warranty is made as to information contained in or omitted from the Registration Statement in reliance upon and in conformity with written information furnished to the Company by the Underwriter specifically for inclusion therein, which information is specified in Section 10(f).

(f) The Prospectus will not, as of its date or as of the applicable Delivery Date, contain an untrue statement of a material fact or omit to state a material fact necessary to make the statements therein, in the light of the circumstances under which they were made, not misleading; provided, however, that no representation or warranty is made as to information contained in or omitted from the Prospectus in reliance upon and in conformity with written information furnished to the Company by the Underwriter specifically for inclusion therein, which information is specified in Section 10(f).

(g) The documents incorporated by reference in any Preliminary Prospectus or the Prospectus did not, and any further documents filed and incorporated by reference therein will

not, when filed with the Commission, contain an untrue statement of material fact or omit to state a material fact necessary to make the statements therein, in light of the circumstances under which they were made, not misleading.

(h) The Pricing Disclosure Package did not, as of the Applicable Time contain an untrue statement of a material fact or omit to state a material fact necessary to make the statements therein, in the light of the circumstances under which they were made, not misleading; provided, however, that no representation or warranty is made as to information contained in or omitted from the Pricing Disclosure Package in reliance upon and in conformity with written information furnished to the Company by the Underwriter specifically for inclusion therein, which information is specified in Section 10(f).

(i) Each Issuer Free Writing Prospectus listed in Schedule IV hereto, when taken together with the Pricing Disclosure Package, did not, as of the Applicable Time, contain an untrue statement of a material fact or omit to state a material fact necessary to make the statements therein, in the light of the circumstances under which they were made, not misleading; provided, however, that no representation or warranty is made as to information contained in or omitted from such Issuer Free Writing Prospectus listed in Schedule IV hereto in reliance upon and in conformity with written information furnished to the Company by the Underwriter specifically for inclusion therein, which information is specified in Section 10(f).

(j) Each Issuer Free Writing Prospectus conformed or will conform in all material respects to the requirements of the Securities Act and the rules and regulations thereunder on the date of first use, and the Company has complied with any filing requirements applicable to such Issuer Free Writing Prospectus pursuant to the Securities Act and rules and regulations thereunder. The Company has not made any offer relating to the Stock that would constitute an Issuer Free Writing Prospectus without the prior written consent of the Underwriter, except as set forth on Schedule IV hereto. The Company has retained in accordance with the Securities Act and the rules and regulations thereunder all Issuer Free Writing Prospectuses that were not required to be filed pursuant to the Securities Act and the rules and regulations thereunder.

(k) The Company and each of its subsidiaries have been duly organized, are validly existing and in good standing as a corporation or other business entity under the laws of their respective jurisdictions of organization and are duly qualified to do business and in good standing as a foreign corporation or other business entity in each jurisdiction in which their respective ownership or lease of property or the conduct of their respective businesses requires such qualification, except where the failure to be so qualified or in good standing would not, in the aggregate, reasonably be expected to have a material adverse effect on the condition (financial or otherwise), or results of operations, stockholders’ equity, properties, business or prospects of the Company and its subsidiaries taken as a whole (a “Material Adverse Effect”). Each of the Company and its subsidiaries has all power and authority necessary to own or hold its properties and to conduct the businesses in which it is engaged as described in the most recent Preliminary Prospectus. The Company does not own or control, directly or indirectly, any corporation, association or other entity as of the date hereof and will not own or control, directly or indirectly, any corporation, association or other entity as of any applicable Delivery Date other than the subsidiaries listed on Exhibit 21 to the Company’s Annual Report on Form 10-K for the most recent fiscal year and LPLS, L.L.C. Each subsidiary (the “Operating Company”) listed on Exhibit 21 to the Company’s Annual Report on Form 10-K for the most recent fiscal year is a “significant subsidiary” (as defined in Rule 405 under the Securities Act).

(l) The Company has an authorized capitalization as set forth in each of the most recent Preliminary Prospectus and the Prospectus under the heading “Capitalization,” and all of the issued shares of capital stock of the Company have been duly authorized and validly issued, are fully paid and non-assessable, conform to the description thereof contained in the most recent Preliminary Prospectus in all material respects and were issued in compliance with federal and state securities laws and not in violation of any preemptive right, resale right, right of first refusal or similar right. All of the Company’s options, warrants and other rights to purchase or exchange any securities for shares of the Company’s capital stock have been duly authorized and validly issued, conform to the description thereof contained in the most recent Preliminary Prospectus in all material respects and were issued in compliance with federal and state securities laws. All of the issued shares of capital stock or other equity interests of each subsidiary of the Company have been duly authorized and validly issued, are fully paid and non-assessable and are owned directly or indirectly by the Company. The Company directly owns 100% of the limited liability company interests of the Operating Company, free and clear of all liens, encumbrances, equities or claims, except for liens arising under or in connection with (i) the Amended and Restated Credit Agreement, dated as of September 10, 2013, as amended by the First Amendment to Amended and Restated Credit Agreement, dated June 9, 2014, the Second Amendment to Amended and Restated Credit Agreement, dated August 29, 2014, the Third Amendment to Amended and Restated Credit Agreement, dated September 12, 2014, and the Fourth Amendment to Amended and Restated Credit Agreement, dated August 24, 2015, among the Operating Company, as Borrower, each of the Lenders from time to time party hereto, Comerica Bank, as administrative agent, syndication agent and documentation agent for the Lenders, (ii) the Credit Agreement, dated December 19, 2016, with RSP Permian L.L.C., JPMorgan Chase Bank, N.A., as administrative agent, and the lenders party thereto and (iii) except for such liens, encumbrances, equities or claims as would not, in the aggregate, reasonably be expected to have a Material Adverse Effect.

(m) The shares of Stock to be sold by each Selling Stockholder hereunder have been duly authorized, validly issued, and fully paid and are non-assessable and conform to the description thereof contained in each of the most recent Preliminary Prospectus and the Prospectus in all material respects, and the sale of the Stock is not subject to any statutory or contractual preemptive rights, rights of first refusal and similar rights.

(n) The Company has all requisite corporate power and authority to execute, deliver and perform its obligations under this Agreement. This Agreement has been duly and validly authorized, executed and delivered by the Company and constitutes, assuming the due authorization, execution and delivery by the other parties thereto, a valid and legally binding agreement of the Company, enforceable against the Company in accordance with its terms, except as enforceability may be limited (A) by applicable bankruptcy, insolvency, fraudulent transfer, reorganization, moratorium or similar laws affecting the enforcement of creditors’ rights generally or by equitable principles (whether considered in a proceeding at law or in equity) relating to enforceability and (B) public policy, applicable law relating to fiduciary duties and indemnification and an implied covenant of good faith and fair dealing.

(o) The execution, delivery and performance of this Agreement by the Company, the consummation of the transactions contemplated hereby will not (i) conflict with or result in a breach or violation of any of the terms or provisions of, impose any lien, charge or encumbrance upon any property or assets of the Company and its subsidiaries, or constitute a default under any indenture, mortgage, deed of trust, loan agreement, license, lease 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; (ii) result in any violation of the provisions of the charter or bylaws (or similar organizational documents) of the Company or any of its subsidiaries; or (iii) result in any violation of any statute or any judgment, order, decree, rule or regulation of any court or governmental agency or body having jurisdiction over the Company or any of its subsidiaries or any of their properties or assets, except, with respect to clauses (i) and (iii), conflicts, breaches, impositions, violations or defaults that would not, in the aggregate, reasonably be expected to have a Material Adverse Effect.

(p) No consent, approval, authorization or order of, or filing, registration or qualification with, any court or governmental agency or body having jurisdiction over the Company or any of its subsidiaries or any of their properties or assets is required for the sale of the Stock as described in the most recent Preliminary Prospectus, the execution, delivery and performance of this Agreement by the Company, the consummation of the transactions contemplated hereby, except (A) such as have been, or prior to the Initial Delivery Date, will be, obtained or made, (B) for the registration of the Stock under the Securities Act and such consents, approvals, authorizations, orders, filings, registrations or qualifications as may be required under the Exchange Act, and applicable state or foreign securities laws and/or the bylaws and rules of the Financial Industry Regulatory Authority (“FINRA”) in connection with the purchase and sale of the Stock by the Underwriter and (C) for such consents that, if not obtained, have not or would not, in the aggregate, reasonably be expected to have a Material Adverse Effect.

(q) The historical financial statements (including the related notes and supporting schedules) included or incorporated by reference in the most recent Preliminary Prospectus comply as to form in all material respects with the requirements of Regulation S-X under the Securities Act and present fairly in all material respects the financial condition, results of operations and cash flows of the entities purported to be shown thereby at the dates and for the periods indicated and have been prepared in conformity with accounting principles generally accepted in the United States applied on a consistent basis throughout the periods involved.

(r) The unaudited pro forma financial statements included or incorporated by reference in the most recent Preliminary Prospectus include assumptions that provide a reasonable basis for presenting the significant effects directly attributable to the transactions and events described therein, the related pro forma adjustments give appropriate effect to those assumptions, and the pro forma adjustments reflect the proper application of those adjustments to the historical financial statement amounts in the unaudited pro forma financial statements included or incorporated by reference in the most recent Preliminary Prospectus. The unaudited pro forma financial statements included or incorporated by reference in the most recent Preliminary Prospectus comply as to form in all material respects with the applicable requirements of Regulation S-X under the Securities Act.

(s) Xxxxx Xxxxxxxx LLP (“Xxxxx Xxxxxxxx”), who has certified certain financial statements of the Company and its subsidiaries and predecessor, and whose report appears in the most recent Preliminary Prospectus or is incorporated by reference therein and who have delivered the initial letter referred to in Section 9(i) hereof, is an independent public accounting firm with respect to the Company and its subsidiaries and predecessor, as required by the Securities Act and the rules and regulations thereunder. Deloitte & Touche LLP (“Deloitte”), has certified certain financial statements of (A) Silver Hill Energy Partners, LLC (“SHEP I”) and (B) Silver Hill E&P II, LLC (“XXXX XX”) that appear in the most recent Preliminary Prospectus or are incorporated by reference therein and have delivered the initial letter referred to in Section 9(i) hereof.

(t) The Company and each of its subsidiaries maintain internal accounting controls sufficient to provide reasonable assurances regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles in the United States, including, but not limited to, internal accounting controls sufficient to provide reasonable assurance that (i) transactions are executed in accordance with management’s general or specific authorization, (ii) transactions are recorded as necessary to permit preparation of the Company’s financial statements in conformity with accounting principles generally accepted in the United States and to maintain accountability for its assets, (iii) access to the Company’s assets is permitted only in accordance with management’s general or specific authorization, (iv) the recorded accountability for the Company’s assets is compared with existing assets at reasonable intervals and appropriate action is taken with respect to any differences and (v) the interactive data in eXtensible Business Reporting Language included or incorporated by reference in the Pricing Disclosure Package and the Prospectus fairly present the information called for in all material respects and are prepared in accordance with the Commission’s rules and guidelines applicable thereto.

(u) (i) The Company and each of its subsidiaries maintain disclosure controls and procedures (as such term is defined in Rule 13a-15(e) under the Exchange Act), (ii) such disclosure controls and procedures are designed to ensure that the information required to be disclosed by the Company and its subsidiaries in the reports they file or will file or submit under the Exchange Act is accumulated and communicated to management of the Company and its subsidiaries, including their respective principal executive officers and principal financial officers, as appropriate, to allow timely decisions regarding required disclosure to be made, and (iii) such disclosure controls and procedures are effective in all material respects to perform the functions for which they were established.

(v) Since the date of the most recent balance sheet of the Company and its consolidated subsidiaries reviewed or audited by Xxxxx Xxxxxxxx, (i) the Company has not been advised of or become aware of (A) any significant deficiencies in the design or operation of internal controls that could adversely affect the ability of the Company or any of its subsidiaries to record, process, summarize and report financial data, or any material weaknesses in internal controls, and (B) any fraud, whether or not material, that involves management or other employees who have a significant role in the internal controls of the Company and each of its subsidiaries; and (ii) there have been no significant changes in internal controls or in other factors that could significantly affect internal controls, including any corrective actions with regard to significant deficiencies and material weaknesses.

(w) The section entitled “Management’s Discussion and Analysis of Financial Condition and Results of Operations—Critical Accounting Policies and Estimates” set forth or incorporated by reference in the most recent Preliminary Prospectus accurately and fully describes (i) the accounting policies that the Company believes are the most important in the portrayal of the Company’s financial condition and results of operations and that require management’s most difficult, subjective or complex judgments (“Critical Accounting Policies”); (ii) the judgments and uncertainties affecting the application of Critical Accounting Policies; and (iii) the likelihood that materially different amounts would be reported under different conditions or using different assumptions and an explanation thereof.

(x) There is and has been no failure on the part of the Company and any of the Company’s directors or officers, in their capacities as such, to comply with any provision of the Xxxxxxxx-Xxxxx Act of 2002, as amended, and the rules and regulations promulgated in connection therewith applicable to the Company.

(y) Except as described in the most recent Preliminary Prospectus and except as would not, in the aggregate, reasonably be expected to have a Material Adverse Effect, since the date of the latest audited financial statements included or incorporated by reference in the most recent Preliminary Prospectus, (i) neither the Company nor any of its subsidiaries has (A) sustained any loss or interference with its business from fire, explosion, flood or other calamity, whether or not covered by insurance, or from any labor dispute or court or governmental action, order or decree, (B) issued or granted any securities, (C) incurred any material liability or obligation, direct or contingent, other than liabilities and obligations that were incurred in the ordinary course of business, (D) entered into any material transaction not in the ordinary course of business, or (E) declared or paid any dividend or distribution on its capital stock or limited liability interests, as applicable, and (ii) there has not been any change in the capital stock, partnership or limited liability interests, as applicable, or long-term debt of the Company or any of its subsidiaries or any adverse change, or any development involving a prospective adverse change, in or affecting the condition (financial or otherwise), results of operations, stockholders’ equity, properties, management, business or prospects of the Company and its subsidiaries taken as a whole.

(z) The Company and each of its subsidiaries have good and marketable title to, or have valid rights to lease or otherwise use, all items of real property and good and marketable title to, or have valid rights to lease or otherwise use, all items of personal property that are material to the conduct of the respective businesses of the Company and its subsidiaries, in each case free and clear of all liens, encumbrances and defects, except such liens, encumbrances and defects (i) as are described in the most recent Preliminary Prospectus, (ii) that do not materially interfere with the use made and proposed to be made of such property by the Company and its subsidiaries and (iii) would not, in the aggregate, reasonably be expected to have a Material Adverse Effect.

(aa) Except as would not, in the aggregate, reasonably be expected to have a Material Adverse Effect, the Company and its subsidiaries have such consents, easements, rights-of-way or licenses from any person (collectively, “rights-of-way”) as are necessary to enable the Company to conduct its business in the manner described in the most recent Preliminary Prospectus, subject to qualifications as may be set forth in the most recent Preliminary Prospectus.

(bb) The Company and each of its subsidiaries have such permits, licenses, patents, franchises, certificates of need and other approvals or authorizations of governmental or regulatory authorities (“Permits”) as are necessary under applicable law to own their properties and conduct their businesses in the manner described in the most recent Preliminary Prospectus, except for any of the foregoing that would not, in the aggregate, reasonably be expected to have a Material Adverse Effect. Each of the Company and its subsidiaries have fulfilled and performed all of its respective obligations with respect to the Permits, and no event has occurred that allows, or after notice or lapse of time would allow, revocation or termination thereof or results in any other impairment of the rights of the holder or any such Permits, except for any of the foregoing that would not reasonably be expected to have a Material Adverse Effect. Neither the Company nor any of its subsidiaries has received notice of any revocation or modification of any such Permits or has any reason to believe that any such Permits will not be renewed in the ordinary course.

(cc) The Company and each of its subsidiaries own or possess adequate rights to use all material patents, patent applications, trademarks, service marks, trade names, trademark registrations, service xxxx registrations, copyrights, licenses, know-how (including seismic data and other unpatentable or unpatented proprietary or confidential information, systems or procedures related to geologic exploration), software, systems and technology (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 as would not, in the aggregate, reasonably be expected to have a Material Adverse Effect.

(dd) Except as described in the most recent Preliminary Prospectus, there are no legal or governmental proceedings pending to which the Company or any of its subsidiaries is a party or of which any property or assets of the Company or any of its subsidiaries is the subject that would, in the aggregate, reasonably be expected to have a Material Adverse Effect or would, in the aggregate, reasonably be expected to have a material adverse effect on the performance of this Agreement or the consummation of the transactions contemplated hereby; and no such proceedings are threatened or, to the Company’s knowledge, contemplated by governmental authorities or others.

(ee) There are no contracts or other documents required to be described in the Registration Statement or the most recent Preliminary Prospectus or filed as exhibits to the Registration Statement that are not described and, if applicable, filed as required. The statements made in the most recent Preliminary Prospectus, insofar as they purport to constitute summaries of the terms of the contracts and other documents described and, if applicable, filed constitute accurate summaries of the terms of such contracts and documents in all material respects.

(ff) The statements made or incorporated by reference in the most recent Preliminary Prospectus under the captions “Business—Regulation of Environmental and Occupation Safety and Health Matters,” “Business—Regulation of the Oil and Natural Gas Industry” and “Certain Relationships and Related Party Transactions, and Director Independence,” insofar as they purport to constitute summaries of the terms of statutes, rules or regulations, legal or

governmental proceedings or contracts and other documents, constitute accurate summaries of the terms of such statutes, rules and regulations, legal and governmental proceedings and contracts and other documents in all material respects.

(gg) Except as would not, in the aggregate, reasonably be expected to have a Material Adverse Effect, the Company and each of its subsidiaries carry, or are covered by, insurance from insurers of recognized financial responsibility in such amounts and covering such risks as is reasonably adequate for the conduct of their respective businesses and the value of their respective properties and as is customary for companies engaged in similar businesses in similar industries. All policies of insurance of the Company and its subsidiaries are in full force and effect; the Company and each of its subsidiaries are in compliance with the terms of such policies in all material respects; and neither the Company nor any of its subsidiaries has received notice from any insurer or agent of such insurer that capital improvements or other expenditures are required or necessary to be made in order to continue such insurance; there are no claims by the Company or any of its subsidiaries under any such policy or instrument as to which any insurance company is denying liability or defending under a reservation of rights clause; and neither the Company nor any such subsidiary has been notified in writing that it will not be able to renew its existing insurance coverage as and when such coverage expires or to obtain similar coverage from similar insurers as may be necessary to continue its business at a cost that would not reasonably be expected to have a Material Adverse Effect.

(hh) Except as described in the most recent Preliminary Prospectus, no relationship, direct or indirect, exists between or among the Company, on the one hand, and the directors, officers, stockholders, customers or suppliers of the Company, on the other hand, that is required to be described in the most recent Preliminary Prospectus which is not so described.

(ii) No labor disturbance by or dispute with the employees of the Company or any of its subsidiaries exists or, to the knowledge of the Company, is imminent that would reasonably be expected to have a Material Adverse Effect.

(jj) Neither the Company nor any of its subsidiaries is (i) in violation of its charter or bylaws (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, condition or other obligation contained in any indenture, mortgage, deed of trust, loan agreement, license or other agreement or instrument to which it is a party or by which it is bound or to which any of its properties or assets is subject, or (iii) in violation of any statute or any order, rule or regulation of any court or governmental agency or body having jurisdiction over it or its property or assets or has failed to obtain any license, permit, certificate, franchise or other governmental authorization or permit necessary to the ownership of its property or to the conduct of its business, except in the case of clauses (ii) and (iii), to the extent any such conflict, breach, violation or default would not, individually or in the aggregate, reasonably be expected to have a Material Adverse Effect.

(kk) Except as disclosed in the most recent Preliminary Prospectus, the Company and each of its subsidiaries (i) are, and at all times prior hereto were, in compliance with all laws, regulations, ordinances, rules, orders, judgments, decrees, permits or other legal requirements of any governmental authority, including without limitation any international, foreign, national,

state, provincial, regional, or local authority, relating to pollution, the protection of human health or safety, the environment, or natural resources, or to use, handling, storage, manufacturing, transportation, treatment, discharge, disposal or release of hazardous or toxic substances or wastes, pollutants or contaminants (“Environmental Laws”) applicable to such entity, which compliance includes, without limitation, obtaining, maintaining and complying with all permits and authorizations and approvals required by Environmental Laws to conduct their respective businesses, and (ii) have not received notice or otherwise have knowledge of any actual or alleged violation of Environmental Laws, or of any actual or potential liability for or other obligation concerning the presence, disposal or release of hazardous or toxic substances or wastes, pollutants or contaminants, except in the case of clause (i) or (ii) where such noncompliance, violation, liability, or other obligation would not, in the aggregate, reasonably be expected to have a Material Adverse Effect. Except as described in the most recent Preliminary Prospectus, (x) there are no proceedings that are pending, or known to be contemplated, against the Company or any of its subsidiaries under Environmental Laws in which a governmental authority is also a party, other than such proceedings regarding which it is reasonably believed no monetary sanctions of $100,000 or more will be imposed, (y) the Company and its subsidiaries are not aware of any issues regarding compliance with Environmental Laws, including any pending or proposed Environmental Laws, or liabilities or other obligations under Environmental Laws or concerning hazardous or toxic substances or wastes, pollutants or contaminants, that would reasonably be expected to have a Material Adverse Effect, and (z) none of the Company and its subsidiaries anticipates material capital expenditures relating to Environmental Laws other than those incurred in the ordinary course of business.

(ll) Except, in each case, for any such matter as would not reasonably be expected to have a Material Adverse Effect, (i) the Company and each of its subsidiaries have filed all federal, state, local and foreign tax returns required to be filed through the date hereof, subject to permitted extensions, and have paid all taxes due, and (ii) there is no tax deficiency that has been determined adversely to the Company or any of its subsidiaries, nor does the Company have any knowledge of any tax deficiencies that have been, or would reasonably be expected to be asserted against the Company.

(mm) Except, in each case, for any such matter as would not reasonably be expected to have a Material Adverse Effect, (i) each “employee benefit plan” (within the meaning of Section 3(3) of the Employee Retirement Income Security Act of 1974, as amended (“ERISA”)) for which the Company or any member of its “Controlled Group” (defined as any organization which is a member of a controlled group of corporations within the meaning of Section 414 of the Internal Revenue Code of 1986, as amended (the “Code”)) would have any liability (each a “Plan”) has been maintained in material compliance with its terms and with the requirements of all applicable statutes, rules and regulations including ERISA and the Code; (ii) no prohibited transaction, within the meaning of Section 406 of ERISA or Section 4975 of the Code, has occurred with respect to any Plan, excluding transactions effected pursuant to a statutory or administrative exemption; (iii) with respect to each Plan subject to Title IV of ERISA, (A) no “reportable event” (within the meaning of Section 4043(c) of ERISA) has occurred or is reasonably expected to occur, excluding any reportable event for which a waiver could apply, (B) the Company and, to the Company’s knowledge, each member of the Controlled Group have fulfilled their obligations under the minimum funding standards of the Code with respect to each such Plan and (C) neither the Company nor any member of its Controlled Group has incurred, or

reasonably expects to incur, any material liability under Title IV of ERISA (other than contributions to the Plan or premiums to the Pension Benefit Guaranty Corporation in the ordinary course and without default) in respect of a Plan (including a “multiemployer plan,” within the meaning of Section 4001(c)(3) of ERISA); and (iv) each Plan that is intended to be qualified under Section 401(a) of the Code is the subject of a favorable determination or opinion letter from the Internal Revenue Service to the effect that it is so qualified, and nothing has occurred, whether by action or by failure to act, which would reasonably be expected to cause the loss of such qualification.

(nn) The statistical and market-related data included or incorporated by reference in the most recent Preliminary Prospectus and the consolidated financial statements of the Company and its subsidiaries included or incorporated by reference in the most recent Preliminary Prospectus are based on or derived from sources that the Company believes to be reliable in all material respects.

(oo) Neither the Company nor any of its subsidiaries is and, as of the applicable Delivery Date and, after giving effect to the offer and sale of the Stock and the application of proceeds therefrom as described under “Use of Proceeds” in the most recent Preliminary Prospectus and the Prospectus, none of them will be, an “investment company” or a company “controlled” by an “investment company” within the meaning of the Investment Company Act of 1940, as amended (the “Investment Company Act”), and the rules and regulations of the Commission thereunder.

(pp) The statements set forth or incorporated by reference in the most recent Preliminary Prospectus under the captions “Description of Capital Stock” and “Material U.S. Federal Income Tax Considerations for Non-U.S. Holders,” insofar as they purport to summarize the provisions of the laws and documents referred to therein, are accurate summaries of the provisions of such laws and documents in all material respects.

(qq) Netherland, Xxxxxx & Associates, Inc. (“NSAI”), a reserve engineer that prepared reserve reports on (i) estimated net proved oil and natural gas reserves held by the Company and its subsidiaries as of December 31, 2016, (ii) estimated net proved oil and natural gas reserves held by SHEP I as of December 31, 2016 and (iii) estimated net proved oil and natural gas reserves held by XXXX XX as of December 31, 2016, was, as of the date of preparation of such reserve reports, and is, as of the date hereof, an independent petroleum engineer with respect to the Company or SHEP I and XXXX XX, as applicable.

(rr) The information contained or incorporated by reference in the most recent Preliminary Prospectus regarding estimated proved reserves of the Company and its subsidiaries, SHEP I and XXXX XX as of December 31, 2016, is based upon the reserve reports prepared by NSAI. Such estimates fairly reflect, in all material respects, the oil and natural gas reserves of the Company and its subsidiaries, SHEP I or XXXX XX, as applicable, as of December 31, 2016 and are in accordance, in all material respects, with Commission rules and guidelines that are currently in effect for oil and gas producing companies applied on a consistent basis throughout the period covered.

(ss) Except as described in the most recent Preliminary Prospectus, there are no contracts, agreements or understandings between the Company and any person granting such person the right to require the Company to file a registration statement under the Securities Act with respect to any securities of the Company owned or to be owned by such person or to require the Company to include such securities in the securities registered pursuant to the Registration Statement or in any securities being registered pursuant to any other registration statement filed by the Company under the Securities Act.

(tt) 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 any of them or the Underwriter for a brokerage commission, finder’s fee or like payment in connection with the offering and sale of the Stock.

(uu) The Company has not sold or issued any securities that would be integrated with the offering of the Stock contemplated by this Agreement pursuant to the Securities Act, the rules and regulations thereunder or the interpretations thereof by the Commission.

(vv) The Company and its affiliates have not taken, directly or indirectly, any action designed to or that has constituted or that could reasonably be expected to cause or result in the stabilization or manipulation of the price of any security of the Company in connection with the offering of the shares of the Stock.

(ww) The shares of the Stock to be sold by the Selling Stockholders to the Underwriter pursuant to this Agreement are listed for trading on the New York Stock Exchange (the “NYSE”).

(xx) The Company has not distributed and, prior to the later to occur of any Delivery Date and the completion of the distribution of the Stock, will not distribute any offering material in connection with the offering and sale of the Stock other than any Preliminary Prospectus, the Prospectus, any Issuer Free Writing Prospectus to which the Underwriter has consented in accordance with Section 1(k) or 6(a)(vi) and any Issuer Free Writing Prospectus set forth on Schedule IV hereto.

(yy) Neither the Company nor any of its subsidiaries nor any director, officer or employee of the Company or any of its subsidiaries nor, to the knowledge of the Company, any agent, affiliate or other person acting on behalf of the Company or any of its subsidiaries has (i) used any Company funds for any unlawful contribution, gift, entertainment or other unlawful expense relating to political activity; (ii) made any direct or indirect unlawful payment from Company funds to any foreign or domestic government official or employee, including of any government-owned or controlled entity or of a public international organization, or any person acting in an official capacity for or on behalf of any of the foregoing, or any political party or party official or candidate for political office; (iii) violated or is in violation of any provision of the Foreign Corrupt Practices Act of 1977, as amended, or any applicable law or regulation implementing the OECD Convention on Combating Bribery of Foreign Public Officials in International Business Transactions, or committed an offence under the Xxxxxxx Xxx 0000 of the United Kingdom, or any other applicable anti-bribery or anti-corruption laws; or (iv) made, offered or requested any unlawful bribe or other unlawful benefit, including, without limitation,

any unlawful rebate, payoff, influence payment or kickback or other unlawful or improper payment or benefit. The Company and its subsidiaries have instituted, maintain and enforce policies and procedures designed to promote and ensure compliance with all applicable anti-bribery and anti-corruption laws.

(zz) The operations of the Company and its subsidiaries are and have been conducted at all times in compliance with applicable financial recordkeeping and reporting requirements of the Currency and Foreign Transactions Reporting Act of 1970, as amended, the applicable money laundering statutes of all jurisdictions where the Company or any of its subsidiaries conduct business, the rules and regulations thereunder and any related or similar rules, regulations or guidelines, issued, administered or enforced by any governmental agency (collectively, the “Anti-Money Laundering Laws”) and no action, suit or proceeding by or before any court or governmental agency, authority or body or any arbitrator involving the Company or any of its subsidiaries with respect to the Anti-Money Laundering Laws is pending or, to the knowledge of the Company, threatened.

(aaa) None of the Company or any of its subsidiaries, nor, to the knowledge of the Company, any director, officer, employee, agent or affiliate of the Company or any of its subsidiaries, nor, to the knowledge of the Company, any other person associated with or acting on behalf of the Company or any of its subsidiaries is currently subject to any sanctions administered or enforced by the U.S. Government, (including, without limitation, the Office of Foreign Assets Control of the U.S. Department of the Treasury (“OFAC”) or the U.S. Department of State and including, without limitation, the designation as a “specially designated national” or “blocked person”), the United Nations Security Council, the European Union, Her Majesty’s Treasury, or other applicable sanctions authority (collectively, “Sanctions”), nor is the Company or any subsidiary located, organized or resident in a country or territory that is the subject of Sanctions, including, without limitation, Cuba, Burma (Myanmar), Iran, North Korea, Sudan and Syria (each, a “Sanctioned Country”); and neither the Company nor any subsidiary will directly or indirectly use the proceeds of the offering of stock hereunder, or lend, contribute or otherwise make available such proceeds to any subsidiary, joint venture partner or other person or entity (i) to fund or facilitate any activities of or business with any person that, at the time of such funding or facilitation, is the subject of Sanctions, (ii) to fund or facilitate any activities of or business in any Sanctioned Country or (iii) in any other manner that will result in a violation by any person (including any person participating in the transaction, whether as underwriter, advisor, investor or otherwise) of Sanctions. For the past two years, neither the Company nor any of its subsidiaries has knowingly engaged in or is now knowingly engaged in any dealings or transactions with any person that at the time of the dealing or transaction is or was the subject or the target of Sanctions in violation of such Sanctions or with any Sanctioned Country in violation of such Sanctions.

Any certificate signed by any officer of the Company and delivered to the Underwriter or counsel for the Underwriter in connection with the offering of the Stock shall be deemed a representation and warranty by the Company, as to matters covered thereby, to the Underwriter.

The Company acknowledges that for purposes of the opinions to be delivered to the Underwriter pursuant to Section 9 of this Agreement, counsel to the Company and counsel to the Underwriter will rely upon the accuracy and truth of the foregoing representations, and the Company hereby consents to such reliance.

2. Representations and Warranties of the Selling Stockholders. Each Selling Stockholder, severally and not jointly, represents and warrants that:

(a) Neither such Selling Stockholder nor any person acting on behalf of such Selling Stockholder (other than, if applicable, the Company and the Underwriter) has used or referred to any “free writing prospectus” (as defined in Rule 405 under the Securities Act) relating to the Stock.

(b) At any Delivery Date on which such Selling Stockholder is selling shares of Stock, such Selling Stockholder will be the legal and record owner of the shares of Stock to be sold by such Selling Stockholder hereunder on such Delivery Date, free and clear of all liens, encumbrances, restrictions on transfer or claims except for any liens, encumbrances, or claims arising under the Delaware General Corporation Law (“DGCL”).

(c) Upon payment for the Stock to be sold by such Selling Stockholder pursuant to this Agreement, delivery of such Stock, as directed by the Underwriter, to Cede & Co. (“Cede”) or such other nominee as may be designated by The Depository Trust Company (“DTC”), registration of such Stock in the name of Cede or such other nominee and the crediting of such Stock on the books of DTC to securities accounts of the Underwriter, (i) DTC will acquire legal, record and beneficial ownership of the Stock free and clear of all liens, encumbrances, equities, community property rights, restrictions on transfer or claims, (ii) DTC shall be a “protected purchaser” of such Stock within the meaning of Section 8-303 of the New York Uniform Commercial Code (the “UCC”), (iii) under Section 8-501 of the UCC, the Underwriter will acquire a valid security entitlement in respect of such Stock, and (iv) an action based on an “adverse claim” (as defined in Section 8-102 of the UCC) to such securities entitlement, whether framed in conversion, replevin, constructive trust, equitable lien or other theory may not be asserted against the Underwriter with respect to such security entitlement (assuming that the Underwriter is purchasing such Stock without notice of any adverse claim). For purposes of this representation, such Selling Stockholder may assume that when such payment, delivery and crediting occur, (x) such Stock will have been registered in the name of Cede or another nominee designated by DTC, in each case on the Company’s share registry in accordance with its certificate of incorporation, bylaws and applicable law, (y) DTC will be registered as a “clearing corporation” within the meaning of Section 8-102 of the UCC, and (z) appropriate entry to the account of the Underwriter on the records of DTC will have been made pursuant to the UCC.

(d) [Reserved.]

(e) Such Selling Stockholder has full right, power and authority, corporate or otherwise, to enter into this Agreement.

(f) This Agreement has been duly and validly authorized, executed and delivered by or on behalf of such Selling Stockholder.

(g) [Reserved.]

(h) The sale of the Stock by such Selling Stockholder, the execution, delivery and performance of this Agreement by such Selling Stockholder and the consummation by such Selling Stockholder of the transactions contemplated hereby and thereby do not and 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, any indenture, mortgage, deed of trust, loan agreement, license, lease or other agreement or instrument to which such Selling Stockholder is a party or by which such Selling Stockholder is bound or to which the Stock to be sold hereunder is subject, (ii) if applicable result in any violation of the provisions of the charter or bylaws (or similar organizational documents) of such Selling Stockholder or (iii) result in any violation of any statute or any judgment, order, decree, rule or regulation of any court or governmental agency or body having jurisdiction over such Selling Stockholder or the Stock to be sold hereunder, except in the case of clauses (i) or (iii) above, for any default or violation that would not, in the aggregate, reasonably be expected to have a material adverse effect on the ability of the Selling Stockholder to consummate the transactions contemplated by this Agreement.

(i) No consent, approval, authorization or order of, or filing or registration with, any court or governmental agency or body having jurisdiction over such Selling Stockholder or the property or assets of such Selling Stockholder is required for the sale of the Stock by such Selling Stockholder, the execution, delivery and performance of this Agreement by such Selling Stockholder and the consummation by such Selling Stockholder of the transactions contemplated hereby and thereby, except (A) such as have been or, prior to the Initial Delivery Date will be, obtained or made, (B) for the registration of the Stock under the Securities Act and such consents, approvals, authorizations, orders, filings, registrations or qualifications as may be required under the Exchange Act and applicable state securities laws in connection with the purchase and sale of the Stock by the Underwriter, (C) for such that, if not obtained, have not or would not, in the aggregate, reasonably be expected to have a material adverse effect on the ability of the Selling Stockholder to consummate the transactions contemplated by this Agreement, and (D) as described in the Registration Statement and the most recent Preliminary Prospectus.

(j) In respect of any statements in or omissions from the Registration Statement, the Prospectus, the Pricing Disclosure Package or any Issuer Free Writing Prospectus or any amendment or supplement thereto used by the Company or the Underwriter, as the case may be, made in reliance upon and in conformity with information furnished in writing to the Company by such Selling Stockholder specifically for use in connection with the preparation thereof, such Selling Stockholder hereby makes the same representations and warranties to the Underwriter as the Company makes to the Underwriter under Sections (1)(e), (f), (g) and (h); it being understood and agreed that the foregoing applies only to such information furnished by such Selling Stockholder to the Company, which consists of (A) the legal name, address and the number of shares of Common Stock owned by such Selling Stockholder, and (B) the other information with respect to such Selling Stockholder (excluding percentages) that appear in the table (and corresponding footnotes) under the caption “Selling Stockholders” (collectively, the “Selling Stockholder Information”).

(k) Such Selling Stockholder is not prompted to sell shares of Stock by any information concerning the Company that is not set forth in the Registration Statement, the Pricing Disclosure Package and the Prospectus.

(l) Except as disclosed in the most recent Preliminary Prospectus, the Selling Stockholder has not taken, directly or indirectly, any action that is designed to or that has constituted or that could reasonably be expected to cause or result in the stabilization or manipulation of the price of any security of the Company in connection with the offering of the shares of the Stock.

Any certificate signed by any officer of such Selling Stockholder and delivered to the Underwriter or counsel for the Underwriter in connection with the offering of the Stock shall be deemed a representation and warranty by such Selling Stockholder, as to matters covered thereby, to the Underwriter.

Each Selling Stockholder acknowledges that for purposes of the opinions to be delivered to the Underwriter pursuant to Section 9 of this Agreement, counsel to the Company, counsel to the Selling Stockholder and counsel to the Underwriter will rely upon the accuracy and truth of the foregoing representations, and the Selling Stockholder hereby consents to such reliance.

3. Purchase of the Stock by the Underwriter. On the basis of the representations, warranties and covenants contained in, and subject to the terms and conditions of, this Agreement, each Selling Stockholder agrees to sell the number of shares of the Firm Stock set forth opposite its name in Schedule I hereto, severally and not jointly, to the Underwriter, and the Underwriter agrees to purchase the Firm Stock.

In addition, each Selling Stockholder grants to the Underwriter an option to purchase up to the number of shares of Option Stock set forth opposite such Selling Stockholder’s name in Schedule I hereto, severally and not jointly. Such options are exercisable in the event that the Underwriter sells more shares of Common Stock than the number of shares of Firm Stock in the offering and as set forth in Section 5 hereof. Any such election to purchase Option Stock shall be made in proportion to the maximum number of shares of Option Stock to be sold by each Selling Stockholder as set forth in Schedule I hereto.

The purchase price payable by the Underwriter for both the Firm Stock and any Option Stock is set forth in Schedule V hereto, less, in the case of the Option Stock, an amount per share equal to any dividends or distributions declared by the Company on its Common Stock and payable on the Firm Stock but not on the Option Stock.

The Selling Stockholders shall not be obligated to deliver any of the Firm Stock or Option Stock to be delivered on the applicable Delivery Date, except upon payment for all such Stock to be purchased on such Delivery Date as provided herein.

4. Offering of Stock by the Underwriter. The Underwriter proposes to offer the Firm Stock for sale upon the terms and conditions to be set forth in the Prospectus.

5. Delivery of and Payment for the Stock. Delivery of and payment for the Firm Stock shall be made at 10:00 A.M., New York City time, on the fourth full business day following the date of this Agreement or at such other date or place as shall be determined by agreement between the Underwriter and the Company. This date and time are sometimes referred to as the “Initial Delivery Date.” Delivery of the Firm Stock shall be made to the Underwriter for

its account against payment by the Underwriter of the aggregate purchase price of the Firm Stock being sold by the Selling Stockholders to or upon the order of the Selling Stockholders of the purchase price by wire transfer in immediately available funds to the accounts specified by the Selling Stockholders. Time shall be of the essence, and delivery at the time and place specified pursuant to this Agreement is a further condition of the obligation of the Underwriter hereunder. The Selling Stockholders shall deliver the Firm Stock through the facilities of DTC unless the Underwriter shall otherwise instruct.

The option granted in Section 3 will expire 30 days after the date of this Agreement and may be exercised in whole or from time to time in part by written notice being given to the Selling Stockholders by the Underwriter; provided, however, that if such date falls on a day that is not a business day, the option granted in Section 3 will expire on the next succeeding business day. Such notice shall set forth the aggregate number of shares of Option Stock as to which the option is being exercised, the names in which the shares of Option Stock are to be registered, the denominations in which the shares of Option Stock are to be issued and the date and time, as determined by the Underwriter, when the shares of Option Stock are to be delivered; provided, however, that this date and time shall not be earlier than the Initial Delivery Date nor earlier than the second business day after the date on which the option shall have been exercised nor later than the fifth business day after the date on which the option shall have been exercised unless otherwise agreed in writing by the Company and the Underwriter. Each date and time the shares of Option Stock are delivered is sometimes referred to as an “Option Stock Delivery Date,” and the Initial Delivery Date and any Option Stock Delivery Date are sometimes each referred to as a “Delivery Date.”

Delivery of the Option Stock by the Selling Stockholders and payment for the Option Stock by the Underwriter shall be made at 10:00 A.M., New York City time, on the date specified in the corresponding notice described in the preceding paragraph or at such other date or place as shall be determined by agreement between the Underwriter and the Company. On each Option Stock Delivery Date, the Selling Stockholders shall deliver or cause to be delivered the Option Stock to the Underwriter for the account of the Underwriter against payment by the Underwriter of the aggregate purchase price of the Option Stock being sold by the Selling Stockholders to or upon the order of the Selling Stockholders of the purchase price by wire transfer in immediately available funds to the accounts specified by the Selling Stockholders. Time shall be of the essence, and delivery at the time and place specified pursuant to this Agreement is a further condition of the obligation of the Underwriter hereunder. The Selling Stockholders shall deliver the Option Stock through the facilities of DTC unless the Underwriter shall otherwise instruct.

6. Further Agreements of the Company and the Underwriter. (a) The Company agrees:

(i) To prepare the Prospectus in a form approved by the Underwriter and to file such Prospectus pursuant to Rule 424(b) under the Securities Act not later than the Commission’s close of business on the second business day following the execution and delivery of this Agreement; to make no further amendment or any supplement to the Registration Statement or the Prospectus prior to the last Delivery Date except as provided herein; to advise the Underwriter, promptly after it receives notice thereof, of

the time when any amendment or supplement to the Registration Statement or the Prospectus has been filed and to furnish the Underwriter with copies thereof; to advise the Underwriter, promptly after it receives notice thereof, of the issuance by the Commission of any stop order or of any order preventing or suspending the use of the Prospectus or any Issuer Free Writing Prospectus, of the suspension of the qualification of the Stock for offering or sale in any jurisdiction, of the initiation or threatening of any proceeding or examination for any such purpose or of any request by the Commission for the amending or supplementing of the Registration Statement, the Prospectus or any Issuer Free Writing Prospectus or for additional information; and, in the event of the issuance of any stop order or of any order preventing or suspending the use of the Prospectus or any Issuer Free Writing Prospectus or suspending any such qualification, to use promptly its best efforts to obtain its withdrawal.

(ii) To furnish promptly to the Underwriter and to counsel for the Underwriter upon request a signed copy of the Registration Statement as originally filed with the Commission, and each amendment thereto filed with the Commission, including all consents and exhibits filed therewith.

(iii) To deliver promptly to the Underwriter such number of the following documents as the Underwriter shall reasonably request: (A) conformed copies of the Registration Statement as originally filed with the Commission and each amendment thereto (in each case excluding exhibits other than this Agreement and the computation of per share earnings), (B) each Preliminary Prospectus, the Prospectus and any amended or supplemented Prospectus, (C) each Issuer Free Writing Prospectus, and (D) any document incorporated by reference in any Preliminary Prospectus or the Prospectus; and, if the delivery of a prospectus is required at any time after the date hereof in connection with the offering or sale of the Stock or any other securities relating thereto and if at such time any events shall have occurred as a result of which the Prospectus as then amended or supplemented would include an 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 when such Prospectus is delivered, not misleading, or, if for any other reason it shall be necessary to amend or supplement the Prospectus in order to comply with the Securities Act, to notify the Underwriter and, upon its request, to file such document and to prepare and furnish without charge to the Underwriter and to any dealer in securities as many copies as the Underwriter may from time to time reasonably request of an amended or supplemented Prospectus that will correct such statement or omission or effect such compliance.

(iv) To file promptly with the Commission any amendment or supplement to the Registration Statement or the Prospectus that may, in the judgment of the Company or the Underwriter, be required by the Securities Act or requested by the Commission.

(v) For such period as in the opinion of counsel for the Underwriter a prospectus is required by the Securities Act to be delivered in connection with sales by the Underwriter or any dealer, prior to filing with the Commission any amendment or supplement to the Registration Statement, the Prospectus, to furnish a copy thereof to the Underwriter and counsel for the Underwriter and not to file any such amendment or

supplement to which the Underwriter reasonably object unless the Company shall have determined based upon the advice of counsel that such amendment, supplement or other filing is required by law, and the Company will promptly notify the Underwriter after they shall have received notice thereof of the time when any amendment to the Registration Statement becomes effective or when any supplement to the Prospectus has been filed.

(vi) Not to make any offer relating to the Stock that would constitute an Issuer Free Writing Prospectus without the prior written consent of the Underwriter.

(vii) To comply with all applicable requirements of Rule 433 under the Securities Act with respect to any Issuer Free Writing Prospectus. If at any time after the date hereof any events shall have occurred as a result of which any Issuer Free Writing Prospectus, as then amended or supplemented, would conflict with the information in the Registration Statement, the most recent Preliminary Prospectus or the Prospectus or would include an untrue statement of a material fact or omit to state any material fact necessary in order to make the statements therein, in light of the circumstances under which they were made, not misleading, or, if for any other reason it shall be necessary to amend or supplement any Issuer Free Writing Prospectus, to notify the Underwriter and, upon their request, to file such document and to prepare and furnish without charge to the Underwriter as many copies as the Underwriter may from time to time reasonably request of an amended or supplemented Issuer Free Writing Prospectus that will correct such conflict, statement or omission or effect such compliance.

(viii) As soon as practicable after the Effective Date (it being understood that the Company shall have until at least 410 days or, if the fourth quarter following the fiscal quarter that includes the Effective Date is the last fiscal quarter of the Company’s fiscal year, 455 days after the end of the Company’s current fiscal quarter), to make generally available to the Company’s security holders and to deliver to the Underwriter (or make available through the Commission’s Electronic Data Gathering Analysis and Retrieval System) an earnings statement of the Company and its subsidiaries (which need not be audited) complying with Section 11(a) of the Securities Act and the rules and regulations thereunder (including, at the option of the Company, Rule 158 under the Securities Act).

(ix) Promptly from time to time to take such action as the Underwriter may reasonably request to qualify the Stock for offering and sale under the securities or Blue Sky laws of Canada and such other jurisdictions as the Underwriter may request and to comply with such laws so as to permit the continuance of sales and dealings therein in such jurisdictions for as long as may be necessary to complete the distribution of the Stock; provided, however, that in connection therewith the Company shall not be required to (i) qualify as a foreign corporation in any jurisdiction in which it would not otherwise be required to so qualify, (ii) file a general consent to service of process in any such jurisdiction, or (iii) subject itself to taxation in any jurisdiction in which it would not otherwise be subject.

(x) [Reserved.]

(xi) To apply the net proceeds from the sale of the Stock being sold by the Company substantially in accordance with the description as set forth in the Prospectus under the caption “Use of Proceeds.”

(xii) To file with the Commission such information on Form 10-Q or Form 10-K as may be required by Rule 463 under the Securities Act.

(xiii) If the Company elects to rely upon Rule 462(b) under the Securities Act, the Company shall file a Rule 462(b) Registration Statement with the Commission in compliance with Rule 462(b) under the Securities Act by 10:00 P.M., Washington, D.C. time, on the date of this Agreement, and the Company shall at the time of filing pay the Commission the filing fee for the Rule 462(b) Registration Statement.

(xiv) Except as disclosed in the most recent Preliminary Prospectus, the Company and its affiliates will not take, directly or indirectly, any action designed to or that has constituted or that reasonably would be expected to cause or result in the stabilization or manipulation of the price of any security of the Company in connection with the offering of the Stock.

(xv) The Company will do and perform all things required or necessary to be done and performed under this Agreement by it prior to each Delivery Date, and to satisfy all conditions precedent to the Underwriter’s obligations hereunder to purchase the Stock.

(xvi) The Company will use its best efforts to include, subject to notice of issuance, the Stock on the NYSE.

(b) The Underwriter agrees that it shall not include any “issuer information” (as defined in Rule 433 under the Securities Act) in any “free writing prospectus” (as defined in Rule 405 under the Securities Act) used or referred to by it without the prior consent of the Company (any such issuer information with respect to whose use the Company has given its consent, “Permitted Issuer Information”); provided, however, that (i) no such consent shall be required with respect to any such issuer information contained in any document filed by the Company with the Commission prior to the use of such free writing prospectus, and (ii) “issuer information,” as used in this Section 6(b), shall not be deemed to include information prepared by the Underwriter on the basis of or derived from issuer information.

7. Further Agreements of the Selling Stockholders. Each Selling Stockholder agrees, severally and not jointly:

(a) To furnish to the Underwriter, prior to the Initial Delivery Date, a letter, substantially in the form of Exhibit A hereto (the “Lock-Up Agreements”).

(b) Neither such Selling Stockholder nor any person acting on behalf of such Selling Stockholder (other than, if applicable, the Company and the Underwriter) shall use or refer to any “free writing prospectus” (as defined in Rule 405 under the Securities Act), relating to the Stock.

(c) To deliver to the Underwriter prior to the Initial Delivery Date a properly completed and executed United States Treasury Department Form W-9 (or other applicable form or statement specified by Treasury Department regulations in lieu thereof).

(d) Such Selling Stockholder will not take, directly or indirectly, any action designed to or that has constituted or that reasonably would be expected to cause or result in the stabilization or manipulation of the price of any security of the Company in connection with the offering of the Stock.

(e) The Selling Stockholder will do and perform all things required or necessary to be done and performed under this Agreement by it prior to each Delivery Date, and to satisfy all conditions precedent to the Underwriter’s obligations hereunder to purchase the Stock.

8. Expenses. The Company agrees, whether or not the transactions contemplated by this Agreement are consummated or this Agreement is terminated, to pay all expenses, costs and fees incident to and in connection with (a) the authorization, issuance, sale and delivery of the Stock and any stamp duties or other taxes payable in that connection, and the preparation and printing of certificates for the Stock; (b) the preparation, printing and filing under the Securities Act of the Registration Statement (including any exhibits thereto), any Preliminary Prospectus, the Prospectus, any Issuer Free Writing Prospectus and any amendment or supplement thereto; (c) the distribution of the Registration Statement (including any exhibits thereto), any Preliminary Prospectus, the Prospectus, any Issuer Free Writing Prospectus and any amendment or supplement thereto, or any document incorporated by reference therein, all as provided in this Agreement; (d) the production and distribution of this Agreement, and any other related documents in connection with the offering, purchase, sale and delivery of the Stock; (e) any required review by the FINRA of the terms of sale of the Stock (including related fees and expenses of counsel to the Underwriter in an amount that is not greater than $20,000); (f) the inclusion of the Stock on the NYSE; (g) the qualification of the Stock under the securities laws of the several jurisdictions as provided in Section 6(a)(ix) and the preparation, printing and distribution of a Blue Sky Memorandum (including related reasonable fees and expenses of counsel to the Underwriter); (h) the preparation, printing and distribution of one or more versions of the Preliminary Prospectus and the Prospectus for distribution in Canada; (i) the investor presentations on any “road show” undertaken in connection with the marketing of the Stock, including, without limitation, expenses associated with any electronic road show, travel and lodging expenses of the representatives and officers of the Company and one-half of the cost of any aircraft chartered in connection with the road show; and (j) all other costs and expenses incident to the performance of the obligations of the Company and the Selling Stockholders under this Agreement; provided, however, that, except as provided in this Section 8 and in Section 13, the Underwriter shall pay its own costs and expenses, including the costs and expenses of their counsel, any transfer taxes on the Stock which they may sell and the expenses of advertising any offering of the Stock made by the Underwriter.

9. Conditions of Underwriter’s Obligations. The obligations of the Underwriter hereunder are subject to the accuracy, when made on the date hereof and on each Delivery Date, of the representations and warranties of the Company and the Selling Stockholders contained

herein, to the performance by the Company and the Selling Stockholders of their respective obligations hereunder, and to each of the following additional terms and conditions:

(a) The Prospectus shall have been timely filed with the Commission in accordance with Section 6(a)(i). The Company shall have complied with all filing requirements applicable to any Issuer Free Writing Prospectus used or referred to after the date hereof; no stop order suspending the effectiveness of the Registration Statement or preventing or suspending the use of the Prospectus or any Issuer Free Writing Prospectus shall have been issued and no proceeding or examination for such purpose shall have been initiated or threatened by the Commission; and any request of the Commission for inclusion of additional information in the Registration Statement or the Prospectus or otherwise shall have been complied with. If the Company has elected to rely upon Rule 462(b) under the Securities Act, the Rule 462(b) Registration Statement shall have become effective by 10:00 p.m., Washington, D.C. time, on the date of this Agreement.

(b) The Underwriter shall not have discovered and disclosed to the Company on or prior to such Delivery Date that the Registration Statement, the Prospectus or the Pricing Disclosure Package, or any amendment or supplement thereto, contains an untrue statement of a fact which, in the opinion of Xxxxxx & Xxxxxxx LLP, counsel for the Underwriter, is material or omits to state a fact which, in the opinion of such counsel, is material and is required to be stated therein or is necessary to make the statements therein not misleading.

(c) All corporate proceedings and other legal matters incident to the authorization, form and validity of this Agreement, the Stock, the Registration Statement, the Prospectus and any Issuer Free Writing Prospectus, and all other legal matters relating to this Agreement and the transactions contemplated hereby shall be reasonably satisfactory in all material respects to counsel for the Underwriter, and the Company and the Selling Stockholders shall have furnished to such counsel all documents and information that they may reasonably request to enable them to pass upon such matters.

(d) Xxxxxx & Xxxxxx L.L.P. shall have furnished to the Underwriter its written opinion, as counsel to the Company, addressed to the Underwriter and dated such Delivery Date, in form and substance reasonably satisfactory to the Underwriter, substantially in the form attached hereto as Exhibit B-1.

(e) Xxxxxxxx & Knight LLP shall have furnished to the Underwriter its written opinion, as counsel to Silver Hill Energy Partners Holdings, LLC and Silver Hill Energy Partners II, LLC, addressed to the Underwriter and dated such Delivery Date, in form and substance reasonably satisfactory to the Underwriter substantially in the form attached hereto as Exhibit B-2.

(f) [Reserved.]

(g) The Underwriter shall have received from Xxxxx X. Xxxxxx, General Counsel for the Company, an opinion, dated such Delivery Date, as to the matters described in Exhibit C hereto.

(h) The Underwriter shall have received from Xxxxxx & Xxxxxxx LLP, counsel for the Underwriter, such opinion or opinions, dated such Delivery Date, with respect to the issuance and sale of the Stock, the Registration Statement, the Prospectus and the Pricing Disclosure Package and other related matters as the Underwriter may reasonably require, and the Company shall have furnished to such counsel such documents as they reasonably request for the purpose of enabling them to pass upon such matters.

(i) At the time of execution of this Agreement, the Underwriter shall have received from each of Xxxxx Xxxxxxxx and Deloitte a letter, in form and substance satisfactory to the Underwriter, addressed to the Underwriter and dated the date hereof (i) confirming that they are independent public accountants within the meaning of the Securities Act and are in compliance with the applicable requirements relating to the qualification of accountants under Rule 2-01 of Regulation S-X of the Commission, and (ii) stating, as of the date hereof (or, with respect to matters involving changes or developments since the respective dates as of which specified financial information is given in the most recent Preliminary Prospectus, as of a date not more than three days prior to the date hereof), the conclusions and findings of such firm with respect to the financial information and other matters ordinarily covered by accountants’ “comfort letters” to underwriters in connection with registered public offerings.

(j) With respect to the letters of Xxxxx Xxxxxxxx and Deloitte referred to in the preceding paragraph and delivered to the Underwriter concurrently with the execution of this Agreement (the “initial letters”), the Company shall have furnished to the Underwriter letters (the “bring-down letters”) of such accountants, addressed to the Underwriter and dated such Delivery Date (i) confirming that they are independent public accountants within the meaning of the Securities Act and are in compliance with the applicable requirements relating to the qualification of accountants under Rule 2-01 of Regulation S-X of the Commission, (ii) stating, as of the date of the bring-down letter (or, with respect to matters involving changes or developments since the respective dates as of which specified financial information is given in the Prospectus, as of a date not more than three days prior to the date of the bring-down letter), the conclusions and findings of such firm with respect to the financial information and other matters covered by the initial letter, and (iii) confirming in all material respects the conclusions and findings set forth in the initial letter.

(k) At the time of execution of this Agreement, the Underwriter shall have received from NSAI an initial letter (the “initial expert letter”) with respect to each of the Company and its Subsidiaries, SHEP I and XXXX XX, in form and substance satisfactory to the Underwriter, addressed to the Underwriter and dated the date hereof and a subsequent letter dated as of the Delivery Date, which such letter shall cover the period from any initial expert letter to the Delivery Date, stating the conclusions and findings of such firm with respect to the reserve and other operational information and other matters as is customary to underwriters in connection with registered public offerings.

(l) The Company shall have furnished to the Underwriter a certificate, dated such Delivery Date, of its Chief Executive Officer and its Chief Financial Officer as to such matters as the Underwriter may reasonably request, including, without limitation, a statement:

(i) That the representations and warranties of the Company in Section 1 are true and correct on the date hereof and on and as of such Delivery Date, and the Company has complied with all its agreements contained herein and satisfied all the conditions on its part to be performed or satisfied hereunder at or prior to such Delivery Date;

(ii) That no stop order suspending the effectiveness of the Registration Statement has been issued; and no proceedings or examination for that purpose have been instituted or, to the knowledge of such officers, threatened; and the Commission shall not have notified the Company of any objection to the use of the form of the Registration Statement or any post-effective amendment thereto;

(iii) That they have examined the Registration Statement, the Prospectus and the Pricing Disclosure Package, and, in their opinion, (A) (1) the Registration Statement, as of the Effective Date, (2) the Prospectus, as of its date and on the applicable Delivery Date, and (3) the Pricing Disclosure Package, as of the Applicable Time, did not and do not contain any untrue statement of a material fact and did not and do not omit to state a material fact required to be stated therein or necessary to make the statements therein (except in the case of the Registration Statement, in the light of the circumstances under which they were made) not misleading, and (B) since the Effective Date, no event has occurred that should have been set forth in a supplement or amendment to the Registration Statement, the Prospectus or any Issuer Free Writing Prospectus that has not been so set forth; and

(iv) To the effect of Section 9(n) (provided, however, that no representation with respect to the judgment of the Underwriter need be made) and Section 9(o).

(m) Each Selling Stockholder (or the Custodian or one or more attorneys in fact on behalf of such Selling Stockholder) shall have furnished to the Underwriter on such Delivery Date a certificate, dated such Delivery Date, signed by, or on behalf of, such Selling Stockholder stating that such Selling Stockholder has examined the Selling Stockholder Information with respect to such Selling Stockholder contained in the Registration Statement, the Prospectus and the Pricing Disclosure Package and that (i) the representations and warranties of the Selling Stockholder contained herein are true and correct on the date hereof and on and as of such Delivery Date and (ii) the Selling Stockholder has complied with all its agreements contained herein and has satisfied all the conditions on its part to be performed or satisfied hereunder at or prior to such Delivery Date.

(n) Except as described in the most recent Preliminary Prospectus, (i) neither the Company nor any of its subsidiaries shall have sustained, since the date of the latest audited financial statements included or incorporated by reference in the most recent Preliminary Prospectus, any loss or interference with its business from fire, explosion, flood or other calamity, whether or not covered by insurance, or from any labor dispute or court or governmental action, order or decree, or (ii) since such date there shall not have been any change in the capital stock or long-term debt of the Company or any of its subsidiaries or any change, or any development involving a prospective change, in or affecting the condition (financial or otherwise), results of operations, stockholders’ equity, properties, management, or prospects of the Company and its subsidiaries taken as a whole, the effect of which, in any such case described in clause (i) or (ii), is, individually or in the aggregate, in the judgment of the Underwriter, so material and adverse as to make it impracticable or inadvisable to proceed with the public offering or the delivery of the Stock being delivered on such Delivery Date on the terms and in the manner contemplated in the Prospectus.

(o) Subsequent to the execution and delivery of this Agreement, there shall not have occurred any of the following: (i) (A) trading in securities generally on any securities exchange that has registered with the Commission under Section 6 of the Exchange Act (including the NYSE, The NASDAQ Global Select Market, The NASDAQ Global Market or The NASDAQ Capital Market), or (B) trading in any securities of the Company on any exchange or in the over-the-counter market, shall have been suspended or materially limited or the settlement of such trading generally shall have been materially disrupted or minimum prices shall have been established on any such exchange or such market by the Commission, by such exchange or by any other regulatory body or governmental authority having jurisdiction, (ii) a general moratorium on commercial banking activities shall have been declared by federal or state authorities, (iii) the United States shall have become engaged in hostilities, there shall have been an escalation in hostilities involving the United States or there shall have been a declaration of a national emergency or war by the United States, or (iv) there shall have occurred such a material adverse change in general economic, political or financial conditions, including, without limitation, as a result of terrorist activities after the date hereof (or the effect of international conditions on the financial markets in the United States shall be such), as to make it, in the judgment of the Underwriter, impracticable or inadvisable to proceed with the public offering or delivery of the Stock being delivered on such Delivery Date on the terms and in the manner contemplated in the Prospectus.

(p) Subsequent to the execution and delivery of this Agreement, (i) no downgrading shall have occurred in the rating accorded to the Company’s debt Securities by any “nationally recognized statistical rating organization” (as defined by the Commission in Section 3(a)(62) of the Exchange Act), and (ii) no such organization shall have publicly announced that it has under surveillance or review, with possible negative implications, its rating of any of the Company’s debt securities.

(q) The NYSE shall have approved the Stock for inclusion, subject only to official notice of issuance.

(r) The Lock-Up Agreements between the Underwriter and each of the Selling Stockholders set forth on Schedule II, delivered to the Underwriter on or before the date of this Agreement, shall be in full force and effect on such Delivery Date.

(s) On or prior to each Delivery Date, the Company shall have furnished to the Underwriter such further certificates and documents as the Underwriter may reasonably request.

All opinions, letters, evidence and certificates 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 Underwriter.

10. Indemnification and Contribution.

(a) The Company hereby agrees to indemnify and hold harmless the Underwriter, its affiliates, directors, officers and employees and each person, if any, who controls the Underwriter within the meaning of Section 15 of the Securities Act or Section 20 of the Exchange Act, from and against any loss, claim, damage or liability, joint or several, or any action in respect thereof (including, but not limited to, any loss, claim, damage, liability or action relating to purchases and sales of Stock), to which that Underwriter, affiliate, director, officer, employee or controlling person may become subject, under the Securities Act or otherwise, insofar as such loss, claim, damage, liability or action arises out of, or is based upon, (i) any untrue statement or alleged untrue statement of a material fact contained in (A) any Preliminary Prospectus, the Registration Statement, the Prospectus or in any amendment or supplement thereto, (B) any Issuer Free Writing Prospectus or in any amendment or supplement thereto, (C) any Permitted Issuer Information used or referred to in any “free writing prospectus” (as defined in Rule 405 under the Securities Act) used or referred to by the Underwriter, (D) any materials or information provided to investors by, or with the approval of, the Company in connection with the marketing of the offering of the Stock, including any “road show” (as defined in Rule 433 under the Securities Act) not constituting an Issuer Free Writing Prospectus (“Marketing Materials”), or (E) any Blue Sky application or other document prepared or executed by the Company (or based upon any written information furnished by the Company for use therein) specifically for the purpose of qualifying any or all of the Stock under the securities laws of any state or other jurisdiction (any such application, document or information being hereinafter called a “Blue Sky Application”) or (ii) the omission or alleged omission to state in any Preliminary Prospectus, the Registration Statement, the Prospectus, any Issuer Free Writing Prospectus or in any amendment or supplement thereto or in any Permitted Issuer Information, any Marketing Materials or any Blue Sky Application, any material fact required to be stated therein or necessary to make the statements therein not misleading, and shall reimburse the Underwriter and each such affiliate, director, officer, employee or controlling person promptly upon demand for any legal or other expenses reasonably incurred by that Underwriter, affiliate, director, officer, employee or controlling person in

connection with investigating or defending or preparing to defend against any such loss, claim, damage, liability or action as such expenses are incurred; provided, however, that the Company shall not be liable in any such case to the extent that any such loss, claim, damage, liability or action arises out of, or is based upon, any untrue statement or alleged untrue statement or omission or alleged omission made in any Preliminary Prospectus, the Registration Statement, the Prospectus, any Issuer Free Writing Prospectus or in any such amendment or supplement thereto or in any Permitted Issuer Information, any Marketing Materials or any Blue Sky Application, in reliance upon and in conformity with written information concerning the Underwriter furnished to the Company by or on behalf of the Underwriter specifically for inclusion therein, which information consists solely of the information specified in Section 10(e). The foregoing indemnity agreement is in addition to any liability which the Company may otherwise have to the Underwriter or to any affiliate, director, officer, employee or controlling person of that Underwriter.

(b) Each of the Selling Stockholders, severally and not jointly, shall indemnify and hold harmless the Underwriter, its affiliates, directors, officers and employees and each person, if any, who controls the Underwriter within the meaning of Section 15 of the Securities Act or Section 20 of the Exchange Act, from and against any loss, claim, damage or liability, joint or several, or any action in respect thereof (including, but not limited to, any loss, claim, damage, liability or action relating to purchases and sales of Stock), to which the Underwriter, affiliate, director, officer, employee or controlling person may become subject, under the Securities Act or otherwise, insofar as such loss, claim, damage, liability or action arises out of, or is based upon, (i) any untrue statement or alleged untrue statement of a material fact contained in any Preliminary Prospectus, the Registration Statement, the Prospectus, any Issuer Free Writing Prospectus or in any amendment or supplement thereto or in any Permitted Issuer Information, any Marketing Materials, any Blue Sky Application or any “free writing prospectus” (as defined in Rule 405 under the Securities Act) (any such “free writing prospectus” that was prepared by or on behalf of the Selling Stockholder or used or referred to by the Selling Stockholder in connection with the offering of the Stock in violation of Section 7(c) being referred to as a “Selling Stockholder Free Writing Prospectus”), or (ii) the omission or alleged omission to state in any Preliminary Prospectus, Registration Statement, the Prospectus, any Issuer Free Writing Prospectus or in any amendment or supplement thereto or in any Permitted Issuer Information, any Marketing Materials, any Blue Sky Application or any Selling Stockholder Free Writing Prospectus, any material fact required to be stated therein or necessary to make the statements therein not misleading, and shall reimburse the Underwriter, its affiliates, directors, officers and employees and each such controlling person promptly upon demand for any legal or other expenses reasonably incurred by the Underwriter, its affiliate, directors, officers and employees or controlling persons in connection with investigating or defending or preparing to defend against any such loss, claim, damage, liability or action as such expenses are incurred, but in each case to the extent, but only to the extent, that such untrue statement or alleged untrue statement or omission or alleged omission was made in the Preliminary Prospectus, Registration Statement, the Prospectus, the Issuer Free Writing Prospectus, the amendment or supplement, the Permitted Issuer Information, the Marketing Materials, the Blue Sky Application or the Selling Stockholder Free Writing Prospectus in reliance upon and in conformity with the

Selling Stockholder Information. The aggregate liability of each Selling Stockholder under this Section 10(b) and Section 10(e) for any claim for breach of representations and warranties of the Selling Stockholder contained in Section 2 shall be limited to the net proceeds, after underwriting discounts before deducting expenses, received by the Selling Stockholder from the shares sold by such Selling Stockholder pursuant to this Agreement, as set forth in the Prospectus.

(c) The Underwriter shall indemnify and hold harmless the Company, each Selling Stockholder, their respective directors, officers, employees, and each person, if any, who controls the Company or such Selling Stockholder within the meaning of Section 15 of the Securities Act or Section 20 of the Exchange Act, from and against any loss, claim, damage or liability, joint or several, or any action in respect thereof, to which the Company, such Selling Stockholder or any such director, officer or controlling person may become subject, under the Securities Act or otherwise, insofar as such loss, claim, damage, liability or action arises out of, or is based upon, (i) any untrue statement or alleged untrue statement of a material fact contained in any Preliminary Prospectus, the Registration Statement, the Prospectus, any Issuer Free Writing Prospectus or in any amendment or supplement thereto or in any Marketing Materials or Blue Sky Application, or (ii) the omission or alleged omission to state in any Preliminary Prospectus, the Registration Statement, the Prospectus, any Issuer Free Writing Prospectus or in any amendment or supplement thereto or in any Marketing Materials or Blue Sky Application, any material fact required to be stated therein or necessary to make the statements therein not misleading, but in each case only to the extent that the untrue statement or alleged untrue statement or omission or alleged omission was made in reliance upon and in conformity with written information concerning the Underwriter furnished to the Company by or on behalf of the Underwriter specifically for inclusion therein, which information is limited to the information set forth in Section 10(e). The foregoing indemnity agreement is in addition to any liability that the Underwriter may otherwise have to the Company, such Selling Stockholder or any such director, officer, employee or controlling person.

(d) Promptly after receipt by an indemnified party under this Section 10 of notice of any claim or the commencement of any action, the indemnified party shall, if a claim in respect thereof is to be made against the indemnifying party under this Section 10, notify the indemnifying party in writing of the claim or the commencement of that action; provided, however, that the failure to notify the indemnifying party shall not relieve it from any liability which it may have under this Section 10 except to the extent it has been materially prejudiced (through the forfeiture of substantive rights and defenses) by such failure and, provided further, that the failure to notify the indemnifying party shall not relieve it from any liability which it may have to an indemnified party otherwise than under this Section 10. If any such claim or action shall be brought against an indemnified party, and it shall notify the indemnifying party thereof, the indemnifying party shall be entitled to participate therein and, to the extent that it wishes, jointly with any other similarly notified indemnifying party, to assume the defense thereof with counsel reasonably satisfactory to the indemnified party. After notice from the indemnifying party to the indemnified party of its election to assume the defense of such claim or action, the indemnifying party shall not be liable to the indemnified party under

this Section 10 for any legal or other expenses subsequently incurred by the indemnified party in connection with the defense thereof other than reasonable costs of investigation; provided, however, that the indemnified party shall have the right to employ counsel to represent jointly the indemnified party and those other indemnified parties and their respective directors, officers, employees and controlling persons who may be subject to liability arising out of any claim in respect of which indemnity may be sought under this Section 10 if (i) the indemnified party and the indemnifying party shall have so mutually agreed; (ii) the indemnifying party has failed within a reasonable time to retain counsel reasonably satisfactory to the indemnified party; (iii) the indemnified party and its directors, officers, employees and controlling persons shall have reasonably concluded that there may be legal defenses available to them that are different from or in addition to those available to the indemnifying party; or (iv) the named parties in any such proceeding (including any impleaded parties) include both the indemnified parties or their respective directors, officers, employees or controlling persons, on the one hand, and the indemnifying party, on the other hand, and representation of both sets of parties by the same counsel would be inappropriate due to actual or potential differing interests between them, and in any such event the fees and expenses of such separate counsel shall be paid by the indemnifying party. No indemnifying party shall (x) without the prior written consent of the indemnified parties (which consent shall not be unreasonably withheld), settle or compromise or consent to the entry of any judgment with respect to any pending or threatened claim, action, suit or proceeding in respect of which indemnification or contribution may be sought hereunder (whether or not the indemnified parties are actual or potential parties to such claim or action) unless such settlement, compromise or consent includes an unconditional release of each indemnified party, in form and substance reasonably satisfactory to such indemnified party, from all liability arising out of such claim, action, suit or proceeding and does not include a statement as to, or an admission of fault, culpability or a failure to act by or on behalf of any indemnified party, or (y) be liable for any settlement of any such action effected without its written consent (which consent shall not be unreasonably withheld), but if settled with the consent of the indemnifying party or if there be a final judgment for the plaintiff in any such action, the indemnifying party agrees to indemnify and hold harmless any indemnified party from and against any loss or liability by reason of such settlement or judgment. Notwithstanding the foregoing sentence, if at any time an indemnified party shall have requested an indemnifying party to reimburse the indemnified party for fees and expenses of counsel as contemplated by Section 10(a) or (b) hereof, the indemnifying party agrees that it shall be liable for any settlement of any proceeding effected without its written consent if (i) such settlement is entered into more than 60 days after receipt by such indemnifying party of the aforesaid request and (ii) such indemnifying party shall not have reimbursed the indemnified party in accordance with such request or disputed in good faith the indemnified party’s entitlement to such reimbursement prior to the date of such settlement.

(e) If the indemnification provided for in this Section 10 shall for any reason be unavailable to or insufficient to hold harmless an indemnified party under Section 10(a), 10(b) or 10(c) in respect of any loss, claim, damage or liability, or any action in respect thereof, referred to therein, then each indemnifying party shall, in lieu of indemnifying such indemnified party, contribute to the amount paid or payable by such

indemnified party as a result of such loss, claim, damage or liability, or action in respect thereof, (i) in such proportion as shall be appropriate to reflect the relative benefits received by the Company and the Selling Stockholders, on the one hand, and the Underwriter, on the other, from the offering of the Stock, or (ii) if the allocation provided by clause (i) above is not permitted by applicable law, in such proportion as is appropriate to reflect not only the relative benefits referred to in clause (i) above but also the relative fault of the Company and the Selling Stockholders, on the one hand, and the Underwriter, on the other, with respect to the statements or omissions that resulted in such loss, claim, damage or liability, or action in respect thereof, as well as any other relevant equitable considerations. The relative benefits received by the Company and the Selling Stockholders, on the one hand, and the Underwriter, on the other, with respect to such offering shall be deemed to be in the same proportion as the total net proceeds from the offering of the Stock purchased under this Agreement (before deducting expenses) received by the Company and the Selling Stockholders, on the one hand, and the total underwriting discounts and commissions received by the Underwriter with respect to the shares of the Stock purchased under this Agreement, on the other hand. The relative fault shall be determined by reference to whether the untrue or alleged untrue statement of a material fact or omission or alleged omission to state a material fact relates to information supplied by the Company, the Selling Stockholders or the Underwriter, the intent of the parties and their relative knowledge, access to information and opportunity to correct or prevent such statement or omission. The Company, the Selling Stockholders and the Underwriter agree that it would not be just and equitable if contributions pursuant to this Section 10(e) were to be determined by pro rata allocation or by any other method of allocation that does not take into account the equitable considerations referred to herein. The amount paid or payable by an indemnified party as a result of the loss, claim, damage or liability, or action in respect thereof, referred to above in this Section 10(e) shall be deemed to include, for purposes of this Section 10(e), any legal or other expenses reasonably incurred by such indemnified party in connection with investigating or defending any such action or claim. Notwithstanding the provisions of this Section 10(e), in no event shall (x) the Underwriter be required to contribute any amount in excess of the amount by which the total underwriting discounts and commissions received by the Underwriter with respect to the offering of the Stock exceeds the amount of any damages that the Underwriter has otherwise been required to pay by reason of such untrue or alleged untrue statement or omission or alleged omission or (y) a Selling Stockholder be required to contribute any amount in excess of the amount by which the net proceeds (exclusive of expenses) received by the Selling Stockholder from the shares sold by such Selling Stockholder pursuant to this Agreement (as set forth in the Prospectus) exceeds any damages which such Selling Stockholder has otherwise been required to pay by reason of such untrue statement or omission or alleged omission. In no event shall the aggregate liability of the Selling Stockholders under Section 10(b) and 10(e) and for any claim for any claim for breach of representations and warranties of the Selling Stockholders contained in Section 2 exceed the limit set forth in Section 10(e). 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.

(f) The Underwriter confirms that the statements regarding delivery of shares by the Underwriter set forth on the cover page of, and the concession and reallowance figures and the paragraph relating to stabilization by the Underwriter appearing under the caption “Underwriting” in, the most recent Preliminary Prospectus and the Prospectus are correct and constitute the only information concerning the Underwriter furnished in writing to the Company by or on behalf of the Underwriter specifically for inclusion in any Preliminary Prospectus, the Registration Statement, the Prospectus, any Issuer Free Writing Prospectus or in any amendment or supplement thereto or in any Marketing Materials.

11. Termination. The obligations of the Underwriter hereunder may be terminated by the Underwriter by notice given to and received by the Company and the Selling Stockholders prior to delivery of and payment for the Firm Stock if, prior to that time, any of the events described in Sections 9(m), 9(n) or 9(o) shall have occurred or if the Underwriter shall decline to purchase the Stock for any reason permitted under this Agreement.

12. Reimbursement of Underwriter’s Expenses. If (a) any Selling Stockholder shall fail to tender the Stock for delivery to the Underwriter for any reason, or (b) the Underwriter shall decline to purchase the Stock for any reason permitted under this Agreement, the Company and, in the case of clause (a) any Selling Stockholders who fail to tender Stock for delivery to the Underwriter, will reimburse the Underwriter for all reasonable out-of-pocket expenses (including fees and disbursements of counsel for the Underwriter) incurred by the Underwriter in connection with this Agreement and the proposed purchase of the Stock, and upon demand the Company and, if applicable, the Selling Stockholders, shall pay the full amount thereof to the Underwriter. If the purchase of the Stock is not consummated as a result of the occurrence of any of the events described in Section 9(n) (other than the occurrence of an event described in Section 9(n)(i)(B)) and the Underwriter is not in default under this Agreement, neither the Company nor any Selling Stockholder shall be obligated to reimburse the Underwriter on account of those expenses.

13. Research Analyst Independence. The Company acknowledges that the Underwriter’s research analysts and research departments are required to be independent from their respective investment banking divisions and are subject to certain regulations and internal policies, and that the Underwriter’s research analysts may hold views and make statements or investment recommendations and/or publish research reports with respect to the Company and/or the offering that differ from the views of their respective investment banking divisions. The Company and the Selling Stockholders hereby waive and release, to the fullest extent permitted by law, any claims that the Company or the Selling Stockholders may have against the Underwriter with respect to any conflict of interest that may arise from the fact that the views expressed by their independent research analysts and research departments may be different from or inconsistent with the views or advice communicated to the Company or the Selling Stockholders by the Underwriter’s investment banking divisions. The Company and the Selling Stockholders acknowledge that the Underwriter is a full service securities firm and as such from time to time, subject to applicable securities laws, may effect transactions for its own account or the account of its customers and hold long or short positions in debt or equity securities of the companies that may be the subject of the transactions contemplated by this Agreement.

14. No Fiduciary Duty. Each of the Company and the Selling Stockholders acknowledges and agrees that in connection with this offering, sale of the Stock or any other services the Underwriter may be deemed to be providing hereunder, notwithstanding any preexisting relationship, advisory or otherwise, between the parties or any oral representations or assurances previously or subsequently made by the Underwriter: (a) no fiduciary or agency relationship between the Company, the Selling Stockholders and any other person, on the one hand, and the Underwriter, on the other, exists; (b) the Underwriter is not acting as advisor, expert or otherwise, to the Company or the Selling Stockholders, including, without limitation, with respect to the determination of the public offering price of the Stock, and such relationship between the Company and the Selling Stockholders, on the one hand, and the Underwriter, on the other, is entirely and solely commercial, based on arms-length negotiations; (c) any duties and obligations that the Underwriter may have to the Company or Selling Stockholders shall be limited to those duties and obligations specifically stated herein; and (d) the Underwriter and its respective affiliates may have interests that differ from those of the Company and the Selling Stockholders. The Company and the Selling Stockholders hereby waive any claims that the Company or the Selling Stockholders may have against the Underwriter with respect to any breach of fiduciary duty in connection with this offering.

15. Notices, etc. All statements, requests, notices and agreements hereunder shall be in writing, and:

(a) if to the Underwriter, shall be delivered or sent by mail or facsimile transmission to Xxxxxxx Lynch, Pierce, Xxxxxx & Xxxxx Incorporated, Xxx Xxxxxx Xxxx, Xxx Xxxx, Xxx Xxxx 00000, Attention: Syndicate Department, fax no. (000) 000 0000, with a copy to ECM Legal, Xxxxxxx Lynch, Pierce, Xxxxxx & Xxxxx Incorporated, Xxx Xxxxxx Xxxx, Xxx Xxxx, Xxx Xxxx 00000, Attention: ECM Legal, fax no. (000) 000-0000;

(b) if to the Company, shall be delivered or sent by mail or facsimile transmission to the address of the Company set forth in the Registration Statement, Attention: Xxxxx X. Xxxxxx, Vice President, General Counsel and Corporate Secretary (Fax: (000) 000-0000); and

(c) if to any Selling Stockholders, shall be delivered or sent by mail or facsimile transmission to such Selling Stockholder at the address set forth on Schedule I hereto.

Any such statements, requests, notices or agreements shall take effect at the time of receipt thereof. The Company and the Selling Stockholders shall be entitled to act and rely upon any request, consent, notice or agreement given or made by Xxxxxxx Lynch, Pierce, Xxxxxx & Xxxxx Incorporated and the Company and the Underwriter shall be entitled to act and rely upon any request, consent, notice or agreement given or made on behalf of the Selling Stockholders by the Custodian.

16. Persons Entitled to Benefit of Agreement. This Agreement shall inure to the benefit of and be binding upon the Underwriter, the Company and the Selling Stockholders and their respective personal representatives and successors. This Agreement and the terms and

provisions hereof are for the sole benefit of only those persons, except that (a) the representations, warranties, indemnities and agreements of the Company and the Selling Stockholders contained in this Agreement shall also be deemed to be for the benefit of the directors, officers and employees of the Underwriter and each person or persons, if any, who control the Underwriter within the meaning of Section 15 of the Securities Act, and (b) the indemnity agreement of the Underwriter contained in Section 10(c) of this Agreement shall be deemed to be for the benefit of the directors, officers and employees of the Company or any Selling Stockholder, and any person controlling the Company or a Selling Stockholder within the meaning of Section 15 of the Securities Act or Section 20 of the Exchange Act. Nothing in this Agreement is intended or shall be construed to give any person, other than the persons referred to in this Section 16, any legal or equitable right, remedy or claim under or in respect of this Agreement or any provision contained herein.

17. Survival. The respective indemnities, rights, contribution, representations, warranties and agreements of the Company, the Selling Stockholders and the Underwriter contained in this Agreement or made by or on behalf of them, respectively, pursuant to this Agreement, shall survive the delivery of and payment for the Stock and shall remain in full force and effect, regardless of any investigation made by or on behalf of any of them or any person controlling any of them.

18. Definition of the Terms “Business Day”, “Affiliate” and “Subsidiary”. For purposes of this Agreement, (a) “business day” means each Monday, Tuesday, Wednesday, Thursday or Friday that is not a day on which banking institutions in New York are generally authorized or obligated by law or executive order to close, and (b) “affiliate” and “subsidiary” have the meanings set forth in Rule 405 under the Securities Act.

19. Governing Law. This Agreement and any claim, controversy or dispute arising under or related to this Agreement shall be governed by and construed in accordance with the laws of the State of New York without regard to conflict of laws principles (other than Section 5-1401 of the General Obligations Law).

20. Waiver of Jury Trial. The Company and the Underwriter hereby irrevocably waive, to the fullest extent permitted by applicable law, any and all right to trial by jury in any legal proceeding arising out of or relating to this Agreement or the transactions contemplated hereby.

21. Counterparts. This Agreement may be executed in one or more counterparts and, if executed in more than one counterpart, the executed counterparts shall each be deemed to be an original but all such counterparts shall together constitute one and the same instrument.

22. Headings. The headings herein are inserted for convenience of reference only and are not intended to be part of, or to affect the meaning or interpretation of, this Agreement.

If the foregoing correctly sets forth the agreement among the Company, the Selling Stockholders and the Underwriter, please indicate your acceptance in the space provided for that purpose below.


Very truly yours,

RSP Permian, Inc.

By:	/s/ Xxxxx X. Xxxxxx
	Name:	Xxxxx X. Xxxxxx
	Title:	Vice President and General Counsel

Silver Hill Energy Partners II, LLC

By:	/s/ Xxxx X. Xxxxxx
	Name:	Xxxx X. Xxxxxx
	Title:	President and Chief Executive Officer

Silver Hill Energy Partners Holdings, LLC

By:	/s/ Xxxx X. Xxxxxx
	Name:	Xxxx X. Xxxxxx
	Title:	President and Chief Executive Officer

[Signature Page to Underwriting Agreement]

Accepted:


XXXXXXX LYNCH, PIERCE, XXXXXX & XXXXX
INCORPORATED

By:	/s/ Xxxx Xxxxx
	Name:	Xxxx Xxxxx
	Title:	Managing Director

[Signature Page to Underwriting Agreement]

SCHEDULE I

SELLING STOCKHOLDERS


Name and Address of Selling Stockholder	Number of Shares of Firm Stock		Number of Shares of Option Stock
Silver Hill Energy Partners II, LLC 0000 Xxxxxx Xxxx, Xxxxx 0000 Xxxxxx, Xxxxx 00000		7,751,438		1,162,716

Silver Hill Energy Partners Holdings, LLC 0000 Xxxxxx Xxxx, Xxxxx 0000 Xxxxxx, Xxxxx 00000		7,248,562		1,087,284

SCHEDULE II

PERSONS DELIVERING LOCK-UP AGREEMENTS

Selling Stockholders

Silver Hill Energy Partners Holdings, LLC

Silver Hill Energy Partners II, LLC

SCHEDULE III

ORALLY CONVEYED PRICING INFORMATION

1. Public Offering price: Variable price offering

2. Number of shares offered: 15,000,000 or, if the Underwriter exercises in full its option to purchase the Option Stock, 17,250,000

SCHEDULE IV

ISSUER FREE WRITING PROSPECTUS

[None.]

SCHEDULE V

1. Price per share to Underwriter: $38.78

EXHIBIT A

LOCK-UP LETTER AGREEMENT

Xxxxxxx Lynch, Pierce, Xxxxxx & Xxxxx

Incorporated

Xxx Xxxxxx Xxxx

Xxx Xxxx, Xxx Xxxx 00000

Ladies and Gentlemen:

The undersigned understands that you (the “Underwriter”) propose to enter into an Underwriting Agreement (the “Underwriting Agreement”) providing for the purchase by you of shares (the “Stock”) of Common Stock, par value $0.01 per share (the “Common Stock”), of RSP Permian Inc., a Delaware corporation (the “Company”), and that you propose to reoffer the Stock to the public (the “Offering”).

In consideration of the execution of the Underwriting Agreement by you, and for other good and valuable consideration, the undersigned hereby irrevocably agrees that, without the prior written consent of Xxxxxxx Lynch, Pierce, Xxxxxx & Xxxxx Incorporated, the undersigned will not, directly or indirectly, (1) offer for sale, sell, pledge, or otherwise dispose of (or enter into any transaction or device that is designed to, or could be expected to, result in the disposition by any person at any time in the future of) any shares of Common Stock (including, without limitation, shares of Common Stock that may be deemed to be beneficially owned by the undersigned in accordance with the rules and regulations of the Securities and Exchange Commission and shares of Common Stock that may be issued upon exercise of any options or warrants) or securities convertible into or exercisable or exchangeable for Common Stock (other than the Stock to be sold in the Offering), (2) enter into any swap or other derivatives transaction that transfers to another, in whole or in part, any of the economic benefits or risks of ownership of shares of Common Stock, whether any such transaction described in clause (1) or (2) above is to be settled by delivery of Common Stock or other securities, in cash or otherwise, (3) make any demand for or exercise any right or cause to be filed a registration statement, including any amendments thereto, with respect to the registration of any shares of Common Stock or securities convertible into or exercisable or exchangeable for Common Stock or any other securities of the Company, or (4) publicly disclose the intention to do any of the foregoing for a period commencing on the date hereof and ending on the 45th day after the date of the final prospectus relating to the Offering (such 45-day period, the “Lock-Up Period”).

The foregoing paragraph shall not apply to (a) transactions relating to shares of Common Stock or other securities acquired in the open market after the completion of the Offering, (b) bona fide gifts, sales or other dispositions of shares of any class of the Company’s capital stock, in each case that are made exclusively between and among the undersigned or members of the undersigned’s family, or affiliates of the

undersigned, including its partners (if a partnership) or members (if a limited liability company), or to a trust the beneficiaries of which are the undersigned or members of the undersigned’s family; provided, however, that it shall be a condition to any transfer pursuant to this clause (b) that (i) the transferee/donee agrees to be bound by the terms of this Lock-Up Letter Agreement (including, without limitation, the restrictions set forth in the preceding sentence) to the same extent as if the transferee/donee were a party hereto, (ii) each party (donor, donee, transferor or transferee) shall not be required by law (including without limitation the disclosure requirements of the Securities Act of 1933, as amended (the “Securities Act”), and the Exchange Act of 1934, as amended (the “Exchange Act”)) to make, and shall agree to not voluntarily make, any filing or public announcement of the transfer or disposition prior to the expiration of the 45-day period referred to above, and (iii) the undersigned notifies Xxxxxxx Lynch, Pierce, Xxxxxx & Xxxxx Incorporated at least two business days prior to the proposed transfer or disposition, (c) the exercise of warrants or the exercise of stock options granted pursuant to the Company’s stock option/incentive plans or otherwise outstanding on the date hereof; provided, however, that the restrictions shall apply to shares of Common Stock issued upon such exercise or conversion, (d) the establishment of any contract, instruction or plan that satisfies all of the requirements of Rule 10b5-1 (a “Rule 10b5-1 Plan”) under the Exchange Act or sales pursuant to any Rule 10b5-1 Plan currently in effect on the date hereof; provided, however, that no sales of Common Stock or securities convertible into, or exchangeable or exercisable for, Common Stock, shall be made pursuant to a Rule 10b5-1 Plan not currently in effect on the date hereof prior to the expiration of the Lock-Up Period (as the same may be extended pursuant to the provisions hereof); provided further, that the Company is not required to report the establishment of such Rule 10b5-1 Plan in any public report or filing with the Commission under the Exchange Act during the lock-up period and does not otherwise voluntarily effect any such public filing or report regarding such Rule 10b5-1 Plan and (e) any demands or requests for, exercise any right with respect to, or take any action in preparation of, the registration by the Company under the Act of the undersigned’s shares of Common Stock, provided that no transfer of the undersigned’s shares of Common Stock registered pursuant to the exercise of any such right and no registration statement shall be filed under the Act with respect to any of the undersigned’s shares of Common Stock during the Lock-Up Period.

In furtherance of the foregoing, the Company and its transfer agent are hereby authorized to decline to make any transfer of securities if such transfer would constitute a violation or breach of this Lock-Up Letter Agreement.

It is understood that, if the Company notifies you that it does not intend to proceed with the Offering, if you notify the Company that you do not intend to proceed with the Offering, if the Underwriting Agreement does not become effective, or if the Underwriting Agreement (other than the provisions thereof which survive termination) shall terminate or be terminated prior to payment for and delivery of the Stock, the undersigned will be released from its obligations under this Lock-Up Letter Agreement.

The undersigned understands that the Company and you will proceed with the Offering in reliance on this Lock-Up Letter Agreement.

Whether or not the Offering actually occurs depends on a number of factors, including market conditions. Any Offering will only be made pursuant to an Underwriting Agreement, the terms of which are subject to negotiation between the Company, the Selling Stockholders named therein and you.

This Lock-Up Letter Agreement shall automatically terminate upon the earliest to occur, if any, of (1) the termination of the Underwriting Agreement before the sale of any Stock to you or (2) 45 days, in the event that the Underwriting Agreement has not been executed by that date.

[Signature page follows]

The undersigned hereby represents and warrants that the undersigned has full power and authority to enter into this Lock-Up Letter Agreement and that, upon request, the undersigned will execute any additional documents necessary in connection with the enforcement hereof. Any obligations of the undersigned shall be binding upon the heirs, personal representatives, successors and assigns of the undersigned.


Very truly yours,

By:
		Name:
		Title:

Dated:

EXHIBIT B-1

FORM OF OPINION OF COMPANY’S COUNSEL

Xxxxxx & Xxxxxx L.L.P. shall have furnished to the Underwriter its written opinion, as counsel to the Company, addressed to the Underwriter and dated the Delivery Date, in form and substance reasonably satisfactory to the Underwriter, to the effect that:

(i) The Company is validly existing as a corporation and in good standing under the laws of the State of Delaware, with the corporate power and authority to own or lease, as the case may be, and to operate its properties and conduct its business as described in the Registration Statement, the Pricing Disclosure Package and the Prospectus.

(ii) RSP Permian, L.L.C. is validly existing as a limited liability company and in good standing under the laws of the State of Delaware, with the limited liability company power and authority to own or lease, as the case may be, and to operate its properties and conduct its business as described in the Registration Statement, the Pricing Disclosure Package and the Prospectus and is duly qualified to do business as a foreign limited liability company and is in good standing in the State of Texas.

(iii) The Company directly owns 100% of the issued and outstanding membership interests in RSP Permian, L.L.C.; such membership interests have been duly authorized and validly issued in accordance with the Third Amended and Restated Limited Liability Company Agreement of RSP Permian, L.L.C. and are fully paid (to the extent required by the Third Amended and Restated Limited Liability Company Agreement of RSP Permian, L.L.C.) and non-assessable (except as such non-assessability may be limited by sections 18-303, 18-607 and 18-804 of the Delaware Limited Liability Company Act (the “Delaware LLC Act”); and the Company owns such membership interests free and clear of all liens, encumbrances, equities or claims (other than liens arising under or in connection with the Revolving Credit Agreement and Term Loan) (A) in respect of which a financing statement under the Uniform Commercial Code of the State of Delaware naming the Company as debtor is on file in the office of the Secretary of State of the State of Delaware as of a recent date or (B) otherwise known to us, without independent investigation other than those created by or arising under the Delaware LLC Act.

(iv) The shares of the Stock to be sold by the Selling Stockholders in accordance with the Underwriting Agreement have been duly authorized and validly issued in accordance with the Governing Documents and are free of preemptive rights under federal law, the Delaware General Corporation Law or the Company’s charter or bylaws, fully paid and non-assessable.

(v) Except as set forth in the Pricing Disclosure Package and the Prospectus, there are no persons with registration rights or other similar rights described in or created pursuant to any agreement filed as an exhibit to the Registration Statement to have any securities registered pursuant to the Registration Statement or registered by the Company under the Securities Act or otherwise.

Exhibit B-1-1

(vi) The execution, delivery and performance of the Underwriting Agreement by the Company do not and will not (a) result in a breach or result in a default (or an event that, with notice or lapse of time or both, would constitute such an event) under any agreement that is filed as an exhibit to the Registration Statement; (b) violate the provisions of the charter or bylaws (or similar organizational documents) of the Company or its subsidiaries; (c) violate any federal, New York, Delaware or Texas statute, rule or regulation applicable to the Company or the DGCL or the Delaware LLC Act, or (d) result in the creation of any additional lien upon any property or assets of the Company Parties under the Credit Agreement except, with respect to clauses (c) and (d), as would not, individually or in the aggregate, reasonably be expected to materially impair the ability of the Company and its subsidiaries to consummate the transactions contemplated by the Underwriting Agreement in connection with the offering (a “Material Adverse Effect”); it being understood that we express no opinion in clause (c) of this paragraph (vi) with respect to any federal or state securities, Blue Sky or anti-fraud laws, rules or regulations.

(vii) The Underwriting Agreement has been duly authorized, executed and delivered by the Company.

(viii) No consent, approval, authorization or order of, registration or qualification with any federal, Texas or New York court or governmental agency or any Delaware court or governmental agency acting pursuant to the DGCL is required to be obtained or made by the Company or its subsidiaries for the execution, delivery and performance by the Company of the Underwriting Agreement, the compliance by the Company with the terms thereof and the sale of the Stock by the Selling Stockholders being delivered on the date hereof pursuant to the Underwriting Agreement, except (i) as have been obtained or made, (ii) for the registration of the offering and sale of the Stock under the Securities Act, (iii) for such consents, approvals, authorizations, orders, registrations or qualifications as may be required under applicable federal or state securities or Blue Sky Laws and the approval by FINRA of the underwriting terms and arrangements in connection with the purchase and distribution of the Stock by the Underwriter and in connection with the purchase and sale of the Stock by the Underwriter and (iv) for such consents that, if not obtained, have not or would not, in the aggregate, reasonably be expected to have a Material Adverse Effect.

(ix) The Registration Statement has been declared effective under the Act; to our knowledge, no stop order suspending the effectiveness of the Registration Statement has been issued and no proceedings for that purpose have been instituted or threatened by the Commission; and any required filing of the Prospectus pursuant to Rule 424(b) under the Act has been made in the manner and within the time period required by such rule.

(x) The statements set forth or incorporated by reference in the Preliminary Prospectus and the Prospectus under the headings “Business—Regulation of the Oil and Natural Gas Industry,” “Business—Regulation of Environmental and Occupational Safety and Health Matters,” “Description of Capital Stock,” “Material U.S. Federal Income Tax Considerations for Non-U.S. Holders” and “Shares Eligible for Future Sale,” and in the Registration Statement in Item 14, to the extent that they constitute descriptions or summaries of the terms of the Common Stock or the documents referred to therein, or refer to statements of federal law, the laws of the State of Delaware or legal conclusions, are accurate in all material respects.

Exhibit B-1-2

(xi) None of the Company or its subsidiaries is, or, after giving effect to the offering and sale of the Stock pursuant to the terms of the Underwriting Agreement and application of the net proceeds thereof as described in the Registration Statement, the Pricing Disclosure Package and the Prospectus under the caption “Use of Proceeds,” will be, required to register as an “investment company,” as such term is defined in the Investment Company Act.

(xii) Each of the Registration Statement, at the time it was declared effective, the Pricing Disclosure Package, as of the Applicable Time, and the Prospectus, when filed with the Commission pursuant to Rule 424(b) under the Securities Act and at Initial Delivery Date or the Option Stock Delivery Date, as the case may be (in each case other than (a) the financial statements and related schedules, including the notes and schedules thereto and the auditor’s report thereon, (b) the other financial data derived therefrom and (c) oil and natural gas reserve data or reports, in each case included in or omitted from the Registration Statement, the Pricing Disclosure Package and the Prospectus, as to which we express no opinion), appeared on their face to comply as to form in all material respects with the requirements of the Securities Act.

We have participated in conferences with representatives of the Company and with representatives of its independent accountants and counsel for the Underwriter at which conferences the contents of the Registration Statement, the Pricing Disclosure Package and the Prospectus and any amendment and supplement thereto and related matters were discussed. Although we have not undertaken to determine independently, and do not assume any responsibility for, or express opinion regarding (other than listed in paragraph (xi) above) the accuracy, completeness or fairness of the statements contained in the Registration Statement, the Pricing Disclosure Package or the Prospectus, based upon the participation described above (relying as to factual matters upon statements of fact made to us by representatives of the Company) and nothing has come to our attention to cause us to believe that:

(a) the Registration Statement, at the time it became effective (including the information, if any, deemed pursuant to Rule 430B to be part of the Registration Statement at the time of effectiveness), contained an untrue statement of a material fact or omitted to state a material fact required to be stated therein or necessary to make the statements therein not misleading;

(b) the Pricing Disclosure Package, as of the Applicable Time, included an untrue statement of a material fact or omitted to state a material fact necessary in order to make the statements therein, in light of the circumstances under which they were made, not misleading; or

(c) the Prospectus, as of its date and as of the date hereof, included or includes an untrue statement of a material fact or omitted or omits 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;

except that in each case, we do not express any belief with respect to (i) the financial statements and related schedules, including the notes and schedules thereto and the auditor’s report thereon, (ii) any other financial or accounting information; or (iii) oil and natural gas reserve data or reports, in each case included in or omitted form the Registration Statement, the Pricing Disclosure Package and the Prospectus.

Exhibit B-1-3

EXHIBIT B-2

FORM OF OPINION OF SELLING STOCKHOLDERS’ COUNSEL

Xxxxxxxx & Knight LLP shall have furnished to the Underwriter its written opinion, as counsel to Silver Hill Energy Partners Holdings, LLC and Silver Hill Energy Partners II, LLC, addressed to the Underwriter and dated the Delivery Date, in form and substance reasonably satisfactory to the Underwriter, to the effect that:

[FORM OF TK OPINION TO COME.]

Exhibit B-2-1

EXHIBIT C

FORM OF OPINION OF GENERAL COUNSEL OF THE COMPANY

1. Except as set forth in the Pricing Disclosure Package and the Prospectus, no options, warrants or other rights to purchase, agreements or other obligations to issue, or convert any obligations into or exchange any securities for, shares of capital stock of or ownership interests in the Company are outstanding.

Exhibit C-1

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RSP Permian, Inc. Common Stock UNDERWRITING AGREEMENT

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