VANTAGE ENERGY INC. Common Stock UNDERWRITING AGREEMENT

Exhibit 1.1

[ ]

Common Stock

[ ], 2014

BARCLAYS CAPITAL INC.
As Representative of the several
Underwriters named in Schedule I attached hereto,
c/o Barclays Capital Inc.
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Ladies and Gentlemen:

Vantage Energy Inc., a Delaware corporation (the “Company”), and certain stockholders of the Company named in Schedule II (the “Selling Stockholders”), propose to sell an aggregate of [·] shares (the “Firm Stock”) of the Company’s common stock, par value $0.01 per share (the “Common Stock”). Of the [·] shares of the Firm Stock, [·] are being sold by the Company and [·] are being sold by the Selling Stockholders. In addition, the Selling Stockholders propose to grant to the underwriters (the “Underwriters”) named in Schedule I attached to this agreement (this “Agreement”) an option to purchase up to an aggregate of [·] 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 is to confirm the agreement concerning the purchase of the Stock from the Company and the Selling Stockholders by the Underwriters.

The Company was recently incorporated to become a holding company for Vantage Energy, LLC (“Vantage I”) and Vantage Energy II, LLC (“Vantage II”), as described more particularly in the Preliminary Prospectus and the Prospectus.

The steps outlined below, and the transactions contemplated thereby, are collectively referred to as the “Reorganization.” As a result of the Reorganization, Vantage I and Vantage II will become direct, wholly owned subsidiaries of the Company. As used in this Agreement, references to the “Company” with respect to periods prior to the consummation of the Reorganization shall be deemed to collectively refer to the combined Vantage I and Vantage II, unless the context otherwise requires. It is understood and agreed by the parties hereto that the following transactions will occur at or prior to the closing of the offering of the Firm Stock on the Initial Delivery Date (as hereinafter defined):

(1) Pursuant to that certain Master Reorganization Agreement by and among the Company, the Selling Stockholders, Vantage I, Vantage II, Quantum Energy Partners IV, LP, a Delaware limited partnership, Q-Vantage Parallel Partners, a Delaware limited partnership, QEM IV Direct Investment Partners, a Delaware limited partnership, Quantum V

Investment Partners, a Delaware limited partnership, Carlyle/Riverstone Global Energy and Power Fund III, L.P., a Delaware limited partnership, C/R Energy Vantage III Partnership, L.P., a Delaware limited partnership, Riverstone Energy Coinvestment III, L.P., a Delaware limited partnership, C/R Energy Coinvestment III, L.P., a Delaware limited partnership, Riverstone V Vantage II Holdings, L.P., a Delaware limited partnership, LR-Vantage Holdings, L.P., a Delaware limited partnership, LR-Vantage Holdings II, L.P., a Delaware limited partnership, VI Merger Sub LLC, a Delaware limited liability company, VII Merger Sub LLC, a Delaware limited liability company, and each of the other persons holding membership interests in Vantage I or Vantage II, dated as of Initial Delivery Date and substantially in the form filed as an exhibit to the Registration Statement (the “Master Reorganization Agreement”), certain restructuring transactions have been or will be undertaken prior to completion of the offering of the Stock, as more fully described in the Registration Statement.

(2) Vantage I will repay and terminate (i) the Second Amended and Restated Credit Agreement, dated as of December 20, 2013, among Vantage I, as borrower, ▇▇▇▇▇ Fargo Bank, N.A., as administrative agent, and the lenders and other parties thereto (the “Vantage I Credit Agreement”) and (ii) the Second Lien Term Loan Credit Agreement, dated as of December 20, 2013, among Vantage I, as borrower, Credit Suisse AG, Cayman Islands Branch, as administrative agent, and the lenders party thereto (the “Vantage I Term Loan”). Vantage II will repay and terminate (i) the Credit Agreement, dated as of November 29, 2012, among Vantage II, as borrower, ▇▇▇▇▇ Fargo Bank, N.A., as administrative agent, and the lenders and other parties thereto, as amended (the “Vantage II Credit Agreement”) and (ii) the Second Lien Term Loan Credit Agreement, dated as of May 8, 2014, among Vantage II, as borrower, Wilmington Trust, National Association, as administrative agent, and the lenders party thereto (the “Vantage II Term Loan”).

(3) The Company will enter into a new revolving credit facility (the “New Credit Agreement” and, together with the Master Reorganization Agreement, the “Documents”).

(4) The public through the Underwriters will purchase the Firm Shares from the Company and the Selling Stockholders.

The Company and all of its subsidiaries are referred to collectively herein as the “Company Parties” and, individually, as a “Company Party.”

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

(a) Registration Statement. A registration statement on Form S-1 (File No. 333-197265) 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 the representative (the “Representative”) of the Underwriters. As used in this Agreement:

(i) “Applicable Time” means [·] p.m. (New York City time) on [insert date];

(ii) “Effective Date” means the date and time as of which the Registration Statement, or the most recent post-effective amendment thereto, was declared effective by the Commission 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 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 IV 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;

(vii) “Registration Statement” means the registration statement on Form S-1 (File No. 333-197265), 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 430A under the Securities Act to be part of such registration statement as of the Effective Date;

(viii) “Testing-the-Waters Communication” means any oral or written communication with potential investors undertaken in reliance on Section 5(d) of the Securities Act; and

(ix) “Written Testing-the-Waters Communication” means any Testing-the-Waters Communication that is a written communication within the meaning of Rule 405 under the Securities Act.

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 herein to the term “Registration Statement” shall be deemed to include the abbreviated registration statement to register additional shares of Common Stock under Rule 462(b) under the Securities Act (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.

(b) Emerging Growth Company Status. From the time of initial confidential submission of the Registration Statement with the Commission (or, if earlier, the first date on which the Company engaged directly or through any Person authorized to act on its behalf in any Testing-the-Waters Communication) through the date hereof, the Company has been and is an “emerging growth company,” as defined in Section 2(a) of the Securities Act (an “Emerging Growth Company”).

(c) Testing-the-Waters Communications. The Company (i) has not engaged in any Testing-the-Waters Communication and (ii) has not authorized anyone other than the Representative to engage in Testing-the-Waters Communications. The Company has not distributed or approved for distribution any Written Testing-the-Waters Communications.

(d) Ineligible Issuer. The Company was not at the time of initial submission 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).

(e) Form of Documents. 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.

(f) No Material Misstatements or Omissions in the Registration Statement. 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 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 through the Representative by or on behalf of any Underwriter specifically for inclusion therein, which information is specified in Section 10(f).

(g) No Material Misstatements or Omissions in the Prospectus. 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 in order to make the statements therein, in the light of the circumstances under which they were made, not misleading; provided 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 through the Representative by or on behalf of any Underwriter specifically for inclusion therein, which information is specified in Section 10(f).

(h) No Material Misstatements or Omissions in the Pricing Disclosure Package. 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 in order to make the statements therein, in the light of the circumstances under which they were made, not misleading; provided 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 through the Representative by or on behalf of any Underwriter specifically for inclusion therein, which information is specified in Section 10(f).

(i) No Material Misstatements or Omissions in Issuer Free Writing Prospectus. Each Issuer Free Writing Prospectus listed in Schedule V 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 in order to make the statements therein, in the light of the circumstances under which they were made, not misleading; provided that no representation or warranty is made as to information contained in or omitted from such Issuer Free Writing Prospectus listed in Schedule V hereto in reliance upon and in conformity with written information furnished to the Company through the Representative by or on behalf of any Underwriter specifically for inclusion therein, which information is specified in Section 10(f).

(j) Issuer Free Writing Prospectuses Conform to the Requirements of the Securities Act. 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 Representative. 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. The Company has taken all actions necessary so that any “road show” (as defined in Rule 433 under the Securities Act) in connection with the offering of the Stock will not be required to be filed pursuant to the Securities Act and the rules and regulations thereunder.

(k) Organization and Good Standing. Each of the Company Parties has been duly organized, is validly existing and in good standing as a corporation or other business entity under the laws of its jurisdiction of organization and is duly qualified to do business and in good standing as a foreign corporation or other business entity in each jurisdiction in which its ownership or lease of property or the conduct of its 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 (A) have a material adverse effect on the condition (financial or otherwise), results of operations, stockholders’ equity, properties, business or prospects of the Company Parties taken as a whole or (B) materially impair the ability of the Company Parties to perform their respective obligations under this Agreement and the Documents to which they are a party (each clause (A) and (B), a “Material Adverse Effect”). Each of the Company Parties has all power and authority necessary to own or hold its properties and to conduct the business in which it is engaged in the manner described in the most recent Preliminary Prospectus. The Company

does not own or control, directly or indirectly, any corporation, association or other entity other than the subsidiaries listed on Schedule VI hereto.

(l) Capitalization. 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, or after giving effect to the Reorganization will 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 and were issued in compliance with federal and state securities laws. All of the issued shares of capital stock or other ownership interest 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, free and clear of all liens, encumbrances, equities or claims (other than those arising under (i) the Vantage I Credit Agreement, (ii) the Vantage II Credit Agreement, (iii) the Vantage I Term Loan, (iv) the Vantage II Term Loan and (v) the New Credit Agreement), except as described in the most recent Preliminary Prospectus and for such liens, encumbrances, equities or claims as would not, individually or in the aggregate, reasonably be expected to have a Material Adverse Effect.

(m) Duly Authorized and Validly Issued Shares. The Stock to be issued and sold by the Company to the Underwriters hereunder have been duly authorized and, upon payment and delivery in accordance with this Agreement, will be validly issued, fully paid and non-assessable, will conform in all material respects to the description thereof contained in the most recent Preliminary Prospectus, and the issuance of the Stock is not subject to any preemptive or similar rights.

(n) Power and Authority. The Company Parties have all requisite corporate power and authority to execute, deliver and perform its obligations under this Agreement and each of the Documents to which it is a party. Each of this Agreement and the Documents has been duly and validly authorized, executed and delivered by the Company Parties. Each of the Documents constitutes, assuming the due authorization, execution and delivery by the other parties thereto, a valid and legally binding agreement of the Company Parties, enforceable against the Company Parties in accordance with their terms, except as enforceability may be limited (i) by applicable bankruptcy, insolvency, fraudulent conveyance, reorganization, moratorium and other similar laws affecting the enforcement of creditors’ rights generally or by equitable principles (whether considered in a proceeding in equity or at law), and (ii) public policy, applicable law relating to fiduciary duties and indemnification and an implied covenant of good faith and fair dealing (collectively, the “Enforceability Exceptions”). The Reorganization has been duly authorized by the Company Parties.

(o) No Conflicts. The issue and sale of the Stock, the execution, delivery and performance of this Agreement and the Documents by the Company Parties, as applicable, the consummation of the transactions contemplated by this Agreement and the Documents and the

application of the proceeds from the sale of the Stock as described under “Use of Proceeds” in the most recent Preliminary Prospectus 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 any of the Company Parties is a party or by which any of the Company Parties is bound or to which any of the property or assets of the Company Parties is subject; (ii) result in any violation of the provisions of the charter or bylaws (or similar organizational documents) of the Company Parties; 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 any of the Company Parties or any of their properties or assets, except, with respect to clauses (i) and (iii) above, for any such conflict, breach, violation or default that would not reasonably be expected to have, individually or in the aggregate, a Material Adverse Effect.

(p) No Consents. No consent, approval, authorization or order of, or filing, registration or qualification with, any court or governmental agency or body having jurisdiction over any of the Company Parties or any of their properties or assets is required for (i) the issuance and sale of the Stock, (ii) the execution, delivery and performance by the Company Parties of this Agreement and the Documents, (iii) the consummation of the transactions contemplated by this Agreement and the Documents, and (iv) the application of the proceeds from the sale of the Stock as described under “Use of Proceeds” in the most recent Preliminary Prospectus, except (A) such as have been, or prior to the Initial Delivery Date, will be obtained or made, (B) for the registration of the sale of Stock under the Securities Act and such consents, approvals, authorizations, orders, filings, registrations or qualifications as may be required under the Securities Exchange Act of 1934, as amended (the “Exchange Act”) and applicable state securities laws and the bylaws and rules of the Financial Industry Regulatory Authority, Inc. (“FINRA”) in connection with the purchase and sale of the Stock by the Underwriters, (C) filings that will be made on or prior to the Initial Delivery Date with the Secretary of State of the State of Delaware in connection with the Reorganization, (D) for such consents that, if not obtained, have not or would not, individually or in the aggregate, reasonably be expected to have a Material Adverse Effect.

(q) Financial Statements. The historical financial statements (including the related notes and supporting schedules) included 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. The other financial information included in the most recent Preliminary Prospectus has been derived from the accounting records of the Company Parties and presents fairly in all material respects the information shown thereby.

(r) Pro Forma Financial Statements. The unaudited pro forma financial statements included 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 in the most recent Preliminary Prospectus. The unaudited pro forma financial statements included 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) Independent Accountants. KPMG LLP, who has certified certain financial statements of Vantage I, Vantage II, the Company and their respective consolidated subsidiaries, whose report appears in the most recent Preliminary Prospectus and who has delivered the initial letter referred to in Section 9(g) hereof, is an independent public accounting firm with respect to the Company and its consolidated subsidiaries as required by the Securities Act and the rules and regulations thereunder.

(t) Accounting Controls. The Company Parties (considered as one entity) 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 consolidated 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, and (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.

(u) Disclosure Controls. (i) The Company Parties (considered as one entity) 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, and (iii) such disclosure controls and procedures are effective in all material respects to perform the functions for which they were established.

(v) No Changes in Internal Controls. Since the date of the most recent balance sheet of the Company and its consolidated subsidiaries reviewed or audited by KPMG LLP, (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 any of the Company Parties 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 each of the Company Parties; 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) ▇▇▇▇▇▇▇▇-▇▇▇▇▇. 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 ▇▇▇▇▇▇▇▇-▇▇▇▇▇ Act of 2002 and the rules and regulations promulgated in connection therewith applicable to the Company.

(x) No Material Adverse Effect. Other than as disclosed 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 in the most recent Preliminary Prospectus, (i) none of the Company Parties, considered as one entity, have (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, partnership 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 Parties, considered as one entity, 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 Parties taken as a whole.

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

(z) Licenses and Permits. Each of the Company Parties has 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, individually or in the aggregate, reasonably be expected to have a Material Adverse Effect. Each of the Company Parties has fulfilled and performed all of its 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. None of the Company Parties has received notice of any revocation or modification of any such Permits.

(aa) Intellectual Property. Each of the Company Parties owns or possesses adequate rights to use all material patents, patent applications, trademarks, service marks, trade names, trademark registrations, service ▇▇▇▇ registrations, copyrights, licenses, know-how, 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, individually or in the aggregate, reasonably be expected to have a Material Adverse Effect.

(bb) Legal Proceedings. Except as described in the most recent Preliminary Prospectus, there are no legal or governmental proceedings pending to which a Company Party is a party or of which any property or assets of any of the Company Parties is the subject that could, in the aggregate, reasonably be expected to have a Material Adverse Effect; and to the Company’s knowledge, no such proceedings are threatened or contemplated by governmental authorities or others.

(cc) Contracts to be Described or Filed. 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.

(dd) Summaries of Law or Agreements. The statements made in the most recent Preliminary Prospectus under the captions “Business—Regulation of the Oil and Natural Gas Industry”; “Business—Regulation of Pipeline Safety and Maintenance”; “Description of Capital Stock”; “Shares Eligible for Future Sale”; “Corporate Reorganization” and “Material U.S. Federal Income and Estate Tax Considerations for Non-U.S. Holders”, 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 and contracts and other documents proceedings in all material respects.

(ee) Insurance. Except as would not reasonably be expected to have a Material Adverse Effect, each of the Company Parties 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 Parties are in full force and effect; each of the Company Parties are in compliance with the terms of such policies in all material respects; and none of the Company Parties 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 any of the Company Parties under any such policy or instrument as to which any insurance company is denying liability or defending under a reservation of rights clause; and none of the Company Parties 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.

(ff) No Undisclosed Relationships. Except as described in the most recent Preliminary Prospectus, no relationship, direct or indirect, exists between or among any Company Party, on

the one hand, and the directors, officers, stockholders, customers or suppliers of any Company Party, on the other hand, that is required to be described in the most recent Preliminary Prospectus which is not so described.

(gg) No Labor Disputes. No labor disturbance by or dispute with the employees of any of the Company Parties exists or, to the knowledge of the Company, is imminent that could reasonably be expected to have a Material Adverse Effect.

(hh) No Defaults. None of the Company Parties is (i) in violation of its charter or by-laws (or similar organizational documents), (ii) in default, and no event has occurred that, with notice or lapse of time or both, would constitute such a default, in the due performance or observance of any term, covenant, 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, 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.

(ii) Environmental Laws. Each of the Company Parties (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 non-compliance, 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 any of the Company Parties 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 Parties 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 could reasonably be expected to have a Material Adverse Effect, and (z) none of the Company Parties anticipates material capital expenditures relating to Environmental Laws other than those incurred in the ordinary course of business.

(jj) Taxes. Each of the Company Parties has 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, other than those being contested in good faith and, except as would not, individually or in the aggregate, reasonably be expected to have a Material Adverse Effect, there is no tax deficiency has been determined adversely to any of the Company Parties, nor does the Company have any knowledge of any tax deficiencies that have been asserted against the Company, that could, in the aggregate, reasonably be expected to have a Material Adverse Effect.

(kk) Compliance with ERISA. (i) 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 or any member of its Controlled Group has incurred, or reasonably expects to incur, any 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, that could reasonably be expected to cause the loss of such qualification or approval.

(ll) Statistical and Market-Related Data. The statistical and market-related data included in the most recent Preliminary Prospectus are based on or derived from sources that the Company believes to be reliable in all material respects.

(mm) Investment Company Act. None of the Company Parties is, and as of the applicable Delivery Date and, after giving effect to the Reorganization and the offer and sale of the Stock and the application of the proceeds therefrom as described under “Use of Proceeds” in the most recent Preliminary Prospectus and the Prospectus, none of them will be, (i) 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.

(nn) Independent Petroleum Engineers. Each of Netherland, ▇▇▇▇▇▇ and Associates, Inc. and ▇▇▇▇▇▇ & Company, Inc., whose reports appear in the most recent Preliminary Prospectus and who have delivered the letters referred to in Section 9(i) hereof, were, as of the date of such report, and are, as of the date hereof, independent petroleum engineers with respect to the Company.

(oo) Additional Registration Statements. 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.

(pp) No Brokers. None of the Company Parties 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 Underwriters for a brokerage commission, finder’s fee or like payment in connection with the offering and sale of the Stock or the Reorganization.

(qq) No Integration. The Company has not sold or issued, or agreed to sell or issue, 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.

(rr) Stabilization. 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.

(ss) NYSE Listing of Shares. The Stock has been approved for listing, subject to official notice of issuance and evidence of satisfactory distribution on, The New York Stock Exchange.

(tt) Distribution of Offering Materials. The Company has not distributed and, prior to the later to occur of any Delivery Date and 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 Representative has consented in accordance with Section 1(l) or Section 6(a)(vi) and, in connection with the Directed Share Program described in Section 4, the enrollment materials prepared by Barclays Capital Inc. on behalf of the Company.

(uu) No Unlawful Payments. None of the Company Parties, nor, to the knowledge of the Company, any director, officer, agent, employee or other person associated with or acting on behalf of the Company or any of its subsidiaries, has (i) used any corporate funds for any unlawful contribution, gift, entertainment or other unlawful expense relating to political activity; (ii) made any direct or indirect unlawful payment to any foreign or domestic government official or employee from corporate funds; (iii) violated or is in violation of any provision of the U.S.

Foreign Corrupt Practices Act of 1977; or (iv) made any bribe, rebate, payoff, influence payment, kickback or other unlawful payment.

(vv) Compliance with Money Laundering Laws. The operations of the Company Parties 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 money laundering statutes of all jurisdictions, the rules and regulations thereunder and any related or similar rules, regulations or guidelines, issued, administered or enforced by any governmental agency (collectively, the “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 Money Laundering Laws is pending or, to the knowledge of the Company, threatened.

(ww) OFAC. None of the Company Parties nor, to the knowledge of the Company, any director, officer, agent, employee or affiliate of any of the Company Parties is currently subject to any U.S. sanctions administered by the Office of Foreign Assets Control of the U.S. Treasury Department (“OFAC”); and the Company will not directly or indirectly use the proceeds of the offering, or lend, contribute or otherwise make available such proceeds to any subsidiary, joint venture partner or other person or entity, for the purpose of financing the activities of any person currently subject to any U.S. sanctions administered by OFAC.

(xx) Reserve Data. The oil and natural gas reserve estimates of the Company Parties as of December 31, 2013 and as of [September 1], 2014 contained in the most recent Preliminary Prospectus are derived from reports that have been prepared by either (a) Netherland, ▇▇▇▇▇▇ and Associates, Inc. or (b) ▇▇▇▇▇▇ & Company, Inc., as set forth and to the extent indicated therein; and such estimates fairly reflect, in all material respects, the oil and natural gas reserves of the Company Parties, at the dates indicated therein 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 periods covered.

(yy) Directed Shares. Each Preliminary Prospectus, the Prospectus and each Issuer Free Writing Prospectus comply, and any further amendments or supplements thereto will comply, with any applicable laws or regulations of foreign jurisdictions in which such Preliminary Prospectus, Prospectus or such Issuer Free Writing Prospectus, as amended or supplemented, if applicable, are distributed in connection with the Directed Share Program. No consent, approval, authorization or order of, or filing, registration or qualification with, any court or governmental agency or body, other than such as have been obtained, is required under the securities laws and regulations of any foreign jurisdiction in which the Directed Shares are offered or sold outside the United States.

(zz) Unlawful Issuances Under Directed Share Plan. The Company has not offered, or caused Barclays Capital Inc. to offer, Stock to any person pursuant to the Directed Share Program with the specific intent to unlawfully influence (i) a customer or supplier of the Company to alter the customer’s or supplier’s level or type of business with the Company or (ii) a trade journalist or publication to write or publish favorable information about the Company, its business or its products.

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

2. Representations and Warranties of the Selling Stockholders. Each Selling Stockholder represents and warrants that:

(a) No Use of Free Writing Prospectus. Neither such Selling Stockholder nor any person acting on behalf of such Selling Stockholder (other than, if applicable, the Company and the Underwriters) has used or referred to any “free writing prospectus” (as defined in Rule 405 under the Securities Act) relating to the Stock.

(b) Title to Securities. Upon completion of the Reorganization, and immediately prior to any Delivery Date on which such Selling Stockholder is selling shares of Stock, such Selling Stockholder will have, good and marketable title to the shares of Stock to be sold by such Selling Stockholder hereunder on such Delivery Date and any “security entitlement” within the meaning of Section 8-501 of the New York Uniform Commercial Code (the “UCC”) in respect thereof, free and clear of all liens, encumbrances, equities, community property rights, restrictions on transfer or claims.

(c) Delivery of Securities. Upon payment for the Stock to be sold by such Selling Stockholder pursuant to this Agreement, delivery of such Stock, as directed by the Underwriters, 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 DTC, Cede or such other nominee and the crediting of such Stock on the books of DTC to securities accounts of the Underwriters (i) DTC will acquire good and marketable title to 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 UCC (assuming DTC does not have notice of any adverse claim with respect to such Stock), (iii) under Section 8-501 of the UCC, the Underwriters 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 Underwriters with respect to such security entitlement (assuming that the Underwriters are 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 entries to the accounts of the several Underwriters on the records of DTC will have been made pursuant to the UCC.

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

(e) Authorization, Execution and Delivery of this Agreement. This Agreement has been duly and validly authorized, executed and delivered by or on behalf of such Selling Stockholder.

(f) No Defaults. 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 any of the property or assets of such Selling Stockholder is subject, (ii) result in any violation of the provisions of the certificate of formation or limited liability company agreement (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 property or assets of such Selling Stockholder, except in the case of clauses (i) and (iii) above, for any default or violation that would not, individually or in the aggregate, reasonably be expected to have a Material Adverse Effect.

(g) No Consents. 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, applicable state securities laws, and the bylaws and rules of FINRA in connection with the purchase and sale of the Stock by the Underwriters, (C) for such that, if not obtained, have not or would not, individually or in the aggregate, reasonably be expected to have a Material Adverse Effect and (D) as described in the Registration Statement and the most recent Preliminary Prospectus.

(h) No Material Misstatements or Omissions in the Information Provided by the Selling Stockholders. 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 any 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, each Selling Stockholder hereby makes the same representations and warranties to each Underwriter as the Company makes to such Underwriter under Sections (1)(f), (g), (h) and (i); 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) which appear in the table (and corresponding footnotes) under the caption “Principal and Selling Stockholders” (collectively, the “Selling Stockholder Information”).

(i) No Other Obligations to Sell Common Stock. Such Selling Stockholder is not prompted to sell shares of the Stock by any information concerning the Company that is not set forth in the Registration Statement, the Pricing Disclosure Package and the Prospectus.

(j) Stabilization. Except as disclosed in the most recent Preliminary Prospectus, such 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 an officer of any Selling Stockholder and delivered to the Representative or counsel for the Underwriters 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 each Underwriter.

3. Purchase of the Stock by the Underwriters. On the basis of the representations, warranties and covenants contained in, and subject to the terms and conditions of, this Agreement, the Company agrees to sell [·] shares of the Firm Stock and each Selling Stockholder agrees to sell the number of shares of the Firm Stock set forth opposite such Selling Stockholder’s name in Schedule II hereto, severally and not jointly, to the several Underwriters, and each of the Underwriters, severally and not jointly, agrees to purchase the number of shares of the Firm Stock set forth opposite that Underwriter’s name in Schedule I hereto. Each Underwriter shall be obligated to purchase from the Company, and from each Selling Stockholder, that number of shares of the Firm Stock that represents the same proportion of the number of shares of the Firm Stock to be sold by the Company and by each Selling Stockholder as the number of shares of the Firm Stock set forth opposite the name of such Underwriter in Schedule I represents to the total number of shares of the Firm Stock to be purchased by all of the Underwriters pursuant to this Agreement. The respective purchase obligations of the Underwriters with respect to the Firm Stock shall be rounded among the Underwriters to avoid fractional shares, as the Representative may determine.

In addition, the Selling Stockholders, severally and not jointly, grant to the Underwriters an option to purchase up to the number of additional shares of Option Stock set forth opposite such Selling Stockholder’s name in Schedule II hereto. Such option is exercisable in the event that the Underwriters sell more shares of Common Stock than the number of shares of Firm Stock in the offering and as set forth in Section 5 hereof. Each Underwriter agrees, severally and not jointly, to purchase the number of shares of Option Stock (subject to such adjustments to eliminate fractional shares as the Representative may determine) that bears the same proportion to the total number of shares of Option Stock to be sold on such Delivery Date as the number of shares of Firm Stock set forth in Schedule I hereto opposite the name of such Underwriter bears to the total number of shares of Firm Stock.

The purchase price payable by the Underwriters for the Firm Stock is $[·] per share. The purchase price payable by the Underwriters for the Option Stock shall be the same purchase price per share as the Underwriters shall pay for the Firm Stock, less an amount per share equal to any dividends or distributions declared by the Company and payable on the Firm Stock but not payable on the Option Stock.

The Company and the Selling Stockholders are not 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 Underwriters. Upon authorization by the Representative of the release of the Firm Stock, the several Underwriters propose to offer the Firm Stock for sale upon the terms and conditions to be set forth in the Prospectus.

It is understood that approximately [·] shares of the Firm Stock (the “Directed Shares”) will initially be reserved by the several Underwriters for offer and sale upon the terms and conditions to be set forth in the most recent Preliminary Prospectus and in accordance with the rules and regulations of FINRA to employees of the Company and its subsidiaries and persons having business relationships with the Company and its subsidiaries who have heretofore delivered to Barclays Capital Inc. offers to purchase shares of Firm Stock in form satisfactory to Barclays Capital Inc. (such program, the “Directed Share Program”) and that any allocation of such Firm Stock among such persons will be made in accordance with timely directions received by Barclays Capital Inc. from the Company; provided that under no circumstances will Barclays Capital Inc. or any Underwriter be liable to the Company or to any such person for any action taken or omitted in good faith in connection with such Directed Share Program. It is further understood that any Directed Shares not affirmatively reconfirmed for purchase by any participant in the Directed Share Program by [·]:00 a.m., New York City time, on the first business day following the date hereof or otherwise are not purchased by such persons will be offered by the Underwriters to the public upon the terms and conditions set forth in the Prospectus.

The Company agrees to pay all fees and disbursements incurred by the Underwriters in connection with the Directed Share Program and any stamp duties or other taxes incurred by the Underwriters in connection with the Directed Share Program.

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 [·], 2014 or at such other date or place as shall be determined by agreement between the Representative 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 Representative for the account of each Underwriter against payment by the several Underwriters through the Representative and of the respective aggregate purchase prices of the Firm Stock being sold by the Company and the Selling Stockholders to or upon the order of the Company and the Selling Stockholders of the purchase price by wire transfer in immediately available funds to the accounts specified by the Company and 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 each Underwriter hereunder. The Company shall deliver the Firm Stock through the facilities of DTC unless the Representative 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 Representative; provided 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 Representative, 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. 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 several Underwriters through the Representative 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 Representative and the Selling Stockholders. On each Option Stock Delivery Date, the Selling Stockholders shall deliver or cause to be delivered the Option Stock to the Representative for the account of each Underwriter against payment by the several Underwriters through the Representative and of the respective aggregate purchase prices 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 each Underwriter hereunder. The Selling Stockholders shall deliver the Option Stock through the facilities of DTC unless the Representative shall otherwise instruct.

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

(i) To prepare the Prospectus in a form approved by the Representative 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 Representative, 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 Representative with copies thereof; to advise the Representative, 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 Representative and to counsel for the Underwriters 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 Representative such number of the following documents as the Representative 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, and (C) each Issuer Free Writing 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 Representative and, upon its request, to file such document and to prepare and furnish without charge to each Underwriter and to any dealer in securities as many copies as the Representative 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 Representative, be required by the Securities Act or requested by the Commission.

(v) Prior to filing with the Commission any amendment or supplement to the Registration Statement or the Prospectus, to furnish a copy thereof to the Representative and counsel for the Underwriters and obtain the consent of the Representative to the filing.

(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 Representative.

(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 the 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 Representative and, upon its request, to file such document and to prepare and furnish without charge to each Underwriter as many copies as the Representative 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 Representative (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); provided, however, that such requirements to the Company’s security holders shall be deemed met by the Company’s compliance with its reporting requirements pursuant to the Exchange Act if such compliance satisfies the conditions of Rule 158.

(ix) Promptly from time to time to take such action as the Representative 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 Representative 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 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) For a period commencing on the date hereof and ending on the 180th day after the date of the Prospectus (the “Lock-Up Period”), not to, directly or indirectly, (A) 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 or securities convertible into or exercisable or exchangeable for Common Stock (other than the Stock and shares of Common Stock and securities convertible into or exchangeable for Common Stock issued pursuant to employee benefit plans, qualified stock option plans or other employee compensation plans existing on the date hereof or described in the most recent Preliminary Prospectus), or sell or grant options, rights or warrants with respect to any shares of Common Stock or securities convertible into or exchangeable for Common Stock (other than the grant of options pursuant to employee benefit plans, option plans, qualified stock option plans or other employee compensation plans existing on the date hereof or described in the most recent Preliminary Prospectus), (B) 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 such shares of Common Stock, whether any such transaction described in clause (A) or (B) above is to be settled by delivery of Common Stock or other securities, in cash or otherwise, (C) file 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, exercisable or exchangeable into Common Stock or any other

securities of the Company (other than any registration statement on Form S-8), or (D) publicly disclose the intention to do any of the foregoing, in each case without the prior written consent of Barclays Capital Inc., on behalf of the Underwriters, and to cause each officer, director and stockholder of the Company set forth on Schedule III hereto to furnish to the Representative, prior to the Initial Delivery Date, a letter or letters, substantially in the form of Exhibit A hereto (the “Lock-Up Agreements”).

(xi) If Barclays Capital Inc., in its sole discretion, agrees to release or waive the restrictions set forth in a Lock-Up Agreement for an officer or director of the Company and provides the Company with notice of the impending release or waiver at least three business days before the effective date of the release or waiver, the Company agrees to announce the impending release or waiver by issuing a press release substantially in the form of Exhibit B hereto, and containing such other information as Barclays Capital Inc. may require with respect to the circumstances of the release or waiver and/or the identity of the officer(s) and/or director(s) with respect to which the release or waiver applies, through a major news service at least two business days before the effective date of the release or waiver.

(xii) 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.”

(xiii) 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.

(xiv) 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.

(xv) In connection with the Directed Share Program, to ensure that the Directed Shares will be restricted from sale, transfer, assignment, pledge or hypothecation to the same extent as sales and dispositions of Common Stock by the Company are restricted pursuant to Section 6(a)(x), and Barclays Capital Inc. will notify the Company as to which Directed Share Participants will need to be so restricted. At the request of Barclays Capital Inc., the Company will direct the transfer agent to place stop transfer restrictions upon such securities for such period of time as is consistent with Section 6(a)(x).

(xvi) To comply with all applicable securities and other applicable laws, rules and regulations in each foreign jurisdiction in which the Directed Shares are offered in connection with the Directed Share Program.

(xvii) The Company will promptly notify the Representative if the Company ceases to be an Emerging Growth Company at any time prior to the later of (A) the time when a prospectus relating to the offering or sale of the Stock or any other securities

relating thereto is not required by the Securities Act to be delivered (whether physically or through compliance with Rule 172 under the Securities Act or any similar rule) and (B) completion of the Lock-Up Period.

(xviii) 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.

(xix) 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 Underwriters’ obligations hereunder to purchase the Stock.

(b) Each Underwriter severally agrees:

(i) that such Underwriter 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 such Underwriter 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 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 or on behalf of such Underwriter on the basis of or derived from issuer information.

(ii) that any Testing-the-Waters Communications undertaken by it were with entities that are qualified institutional buyers as defined in Rule 144A under the Securities Act or institutions that are accredited investors as defined in Rule 501(a) under the Securities Act.

7. Further Agreements of the Selling Stockholders. Each Selling Stockholder agrees:

(a) To furnish to the Representative, prior to the Initial Delivery Date, a letter, substantially in the form of Exhibit A hereto.

(b) Neither such Selling Stockholder nor any person acting on behalf of such Selling Stockholder (other than, if applicable, the Company and the Underwriters) 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 Representative prior to or on 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) Except as set forth in the most recent Preliminary Prospectus, 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) Such 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 Underwriters’ 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, fees and taxes 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; (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, any Written Testing-the-Waters Communication, 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, any Written Testing-the-Waters Communication, and any amendment or supplement thereto, all as provided in this Agreement; (d) the production and distribution of this Agreement, any supplemental agreement among Underwriters, 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 Underwriters in an amount that is not greater than $20,000); (f) the listing of the Stock on the New York Stock Exchange and/or any other exchange; (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 fees and expenses of counsel to the Underwriters); (h) the preparation, printing and distribution of one or more versions of the Preliminary Prospectus and the Prospectus for distribution in Canada, including in the form of a Canadian “wrapper” (including related fees and expenses of Canadian counsel to the Underwriters); (i) the offer and sale of shares of the Stock by the Underwriters in connection with the Directed Share Program, including reasonable fees and disbursements of counsel to the Underwriters related thereto, the costs and expenses of preparation, printing and distribution of the Directed Share Program material and all stamp duties or other taxes incurred by the Underwriters in connection with the Directed Share Program; (j) the investor presentations on any “road show” or any Testing-the-Waters Communication, 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 (k) all other costs and expenses incident to the performance of the obligations of the Company and any Selling Stockholder under this Agreement; provided that, except as provided in this Section 8 and in Section 13, the Underwriters shall pay their own costs and expenses, including the costs and expenses of their counsel, any transfer taxes on the Stock which they may sell, the expenses of advertising any offering of the Stock made by the Underwriters, and the Selling Stockholders shall bear the pro rata cost of any underwriting discount and any underwriting commission with all other fees attributable to the Selling Stockholders and related to the offering borne by the Company.

9. Conditions of Underwriters’ Obligations. The respective obligations of the Underwriters hereunder are subject to the accuracy, when made and on each Delivery Date, of the representations and warranties of the Company and each Selling Stockholder contained herein, to the performance by the Company and each Selling Stockholder 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) No Underwriter shall have discovered and disclosed to the Company on or prior to such Delivery Date that (i) the Registration Statement or any amendment or supplement thereto, contains an untrue statement of a fact which, in the opinion of ▇▇▇▇▇ ▇▇▇▇▇ L.L.P., counsel for the Underwriters, 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 or (ii) 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 ▇▇▇▇▇ ▇▇▇▇▇, L.L.P., counsel for the Underwriters, is material or omits to state a fact which, in the opinion of such counsel, is material and is necessary to make the statements therein, in light of the circumstances existing on such Delivery Date, 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 Underwriters, 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) ▇▇▇▇▇▇ & ▇▇▇▇▇▇ L.L.P. shall have furnished to the Representative its written opinion, as counsel to the Company, addressed to the Underwriters and dated such Delivery Date, in form and substance reasonably satisfactory to the Representative, substantially in the form attached hereto as Exhibit C-1.

(e) ▇▇▇▇▇▇ & ▇▇▇▇▇▇ L.L.P. shall have furnished to the Representative its written opinion, as counsel to the Selling Stockholders, addressed to the Underwriters and dated such Delivery Date, in form and substance reasonably satisfactory to the Representative, substantially in the form attached hereto as Exhibit C-2.

(f) The Representative shall have received from ▇▇▇▇▇ ▇▇▇▇▇ L.L.P, counsel for the Underwriters, 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 Representative 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.

(g) At the time of execution of this Agreement, the Representative shall have received from KPMG LLP a letter, in form and substance satisfactory to the Representative, addressed to the Underwriters 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.

(h) With respect to the letter of KPMG LLP referred to in the preceding paragraph and delivered to the Representative concurrently with the execution of this Agreement (the “initial letter”), the Company shall have furnished to the Representative a letter (the “bring-down letter”) of such accountants, addressed to the Underwriters 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.

(i) At the time of execution of this Agreement, the Representative shall have received from each of Netherland, ▇▇▇▇▇▇ and Associates, Inc. and ▇▇▇▇▇▇ & Company, Inc. an initial letter (the “initial expert letter”), in form and substance satisfactory to the Representative, addressed to the Underwriters 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.

(j) [The Company shall have furnished to the Representative on the date hereof a certificate, signed by the Chief Financial Officer substantially in the form set forth on Exhibit D hereto (the “Initial CFO Certificate”). At each Delivery Date, the Representative shall have received from the Chief Financial Officer a certificate (the “Bring Down CFO Certificate”) (i) stating, as of the date of the Bring-Down CFO Certificate, the conclusions and findings of the Chief Financial Officer with respect to the financial information and other matters covered by the Initial CFO Certificate and (ii) confirming in all material respects the conclusions and findings set forth in the Initial CFO Certificate.](1)

(1) If necessary, depending on the comfort letter to be delivered by KPMG and/or if capsule financial information is included in the red.

(k) The Company shall have furnished to the Representative a certificate, dated such Delivery Date, of its Chief Executive Officer and its Chief Financial Officer as to such matters as the Representative 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 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

(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, did not contain any untrue statement of a material fact and did not omit to state a material fact required to be stated therein or necessary to make the statements therein not misleading (2) the Prospectus, as of its date and on the applicable Delivery Date, did not and does not contain any untrue statement of a material fact and did not and does not 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, and (3) the Pricing Disclosure Package, as of the Applicable Time, did not contain any untrue statement of a material fact and did not 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, 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.

(l) Each Selling Stockholder shall have furnished to the Representative 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 contained in the Registration Statement, the Prospectus and the Pricing Disclosure Package and that (i) the representations and warranties of such Selling Stockholder contained herein are true and correct on and as of such Delivery Date and (ii) such Selling Stockholder has satisfied all the conditions on its part to be performed or satisfied hereunder at or prior to such Delivery Date.

(m) Except as described in the most recent Preliminary Prospectus, (i) none of the Company Parties shall have sustained, since the date of the latest audited financial statements included 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, no Company Party has declared or paid any dividend on its capital stock, nor has there been any change in the capital stock, partnership or limited liability interests, as applicable, or long-term debt of the Company Parties, taken as a whole, 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, business 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 Representative, 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.

(n) Subsequent to the execution and delivery of this Agreement, to the extent applicable, (i) no downgrading shall have occurred in the rating accorded the Company’s debt securities or preferred stock 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 or preferred stock.

(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 New York Stock Exchange, 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 Representative, 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) The New York Stock Exchange shall have approved the Stock for listing, subject only to official notice of issuance and evidence of satisfactory distribution.

(q) The Lock-Up Agreements between the Representative and the officers, directors and stockholders of the Company set forth on Schedule III, delivered to the Representative on or before the date of this Agreement, shall be in full force and effect on such Delivery Date.

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

(s) As of the Initial Delivery Date, all transactions described in the Preliminary

Prospectus under the heading “Corporate Reorganization” shall have been completed in the manner described therein, the Reorganization will be effective and valid in accordance with the laws of Delaware, and each of the Vantage I Credit Agreement, the Vantage I Term Loan, the Vantage II Credit Agreement and the Vantage II Term Loan shall have been terminated and of no further force or effect.

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 Underwriters.

10. Indemnification and Contribution.

(a) Indemnification of the Underwriters by the Company. The Company hereby agrees to indemnify and hold harmless each Underwriter, its affiliates, directors, officers, employees and agents and each person, if any, who controls any 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, agent 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 any 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 and any Written Testing-the-Waters Communication (“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 each Underwriter and each such affiliate, director, officer, employee, agent or controlling person promptly upon demand for any legal or other expenses reasonably incurred by that Underwriter, affiliate, director, officer, employee, agent 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 such Underwriter furnished to the Company through the Representative by or on behalf of any Underwriter specifically for inclusion therein, which information consists solely of the information specified in Section 10(f). The foregoing indemnity agreement is in addition to any liability which the Company may otherwise have to any Underwriter or to any affiliate, director, officer, employee, agent or controlling person of that Underwriter.

(b) Indemnification of the Underwriters by the Selling Stockholders. The Selling Stockholders shall, severally and not jointly, indemnify and hold harmless each Underwriter, its affiliates, directors, officers, employees and agents and each person, if any, who controls any 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, agent 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 any Selling Stockholder or used or referred to by any 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 each Underwriter, its affiliates, directors, officers, employees and agents and each such controlling person promptly upon demand for any legal or other expenses reasonably incurred by that Underwriter, its affiliates, directors, officers, employees and agents 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 only to the extent that any such loss, claim, damage or liability arises out of or is based upon an untrue statement or alleged untrue statement in or omission or alleged omission from 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 in reliance upon and in conformity with the Selling Stockholder Information. The aggregate liability of each Selling Stockholder under Section 10(b) and Section 10(e) or any claim for breach of representations and warranties of such Selling Stockholder contained in Section 2 shall be limited to the aggregate net proceeds, after underwriting discounts but before deducting expenses received by such Selling Stockholder, from the offering of the shares of the Stock purchased under the Agreement received by such Selling Stockholder, as set forth in the Prospectus.

(c) Indemnification of the Company and the Selling Stockholders by the Underwriters. Each Underwriter, severally and not jointly, shall indemnify and hold harmless the Company, each Selling Stockholder, their directors, officers and 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, 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 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 such Underwriter furnished to the Company through the Representative by or on behalf of that Underwriter specifically for inclusion therein, which information is limited to the information set forth in Section 10(f). The foregoing indemnity agreement is in addition to any liability that any 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), 10(c) or 10(h) 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 Underwriters, 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 Underwriters, 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 Underwriters, 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, as set forth in the table on the cover page of the Prospectus, on the one hand, and the total underwriting discounts and commissions received by the Underwriters with respect to the shares of the Stock purchased under this Agreement, as set forth in the table on the cover page of the Prospectus, 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 Underwriters, 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 Underwriters 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 (even if the Underwriters were treated as one entity for such purpose) 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 an Underwriter be required to contribute any amount in excess of the amount by which the total underwriting discounts and commissions received by such Underwriter with respect to the offering of the Stock exceeds the amount of any damages that such Underwriter has otherwise been required to pay by reason of such untrue or alleged 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 breach of representations and warranties of the Selling Stockholders contained in Section 2 exceed the limit set forth in Section 10(b). No person guilty of fraudulent misrepresentation (within the meaning of Section 11(f) of the Securities Act) shall be entitled to contribution from any person who was not guilty of such fraudulent misrepresentation. The Underwriters’ obligations to contribute as provided in this Section 10(e) are several in proportion to their respective underwriting obligations and not joint.

(f) The Underwriters severally confirm that the statements regarding delivery of shares by the Underwriters set forth on the cover page of, and the concession and reallowance figures and the paragraph relating to stabilization by the Underwriters appearing under the caption “Underwriting” in, the most recent Preliminary Prospectus and the Prospectus are correct and constitute the only information concerning such Underwriters furnished in writing to the Company by or on behalf of the Underwriters 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.

(g) The Company shall indemnify and hold harmless Barclays Capital Inc. (including its affiliates, directors, officers and employees) and each person, if any, who controls Barclays Capital Inc. within the meaning of Section 15 of the Securities Act or Section 20 of the Exchange Act (“Barclays Entities”), from and against any loss, claim, damage or liability or any action in respect thereof to which any of the Barclays Entities may become subject, under the Securities Act or otherwise, insofar as such loss, claim, damage, liability or action (i) arises out of, or is based upon, any untrue statement or alleged untrue statement of a material fact contained in any material prepared by or with the approval of the Company for distribution to Directed Share Participants in connection with the Directed Share Program or any omission or alleged omission

to state therein a material fact required to be stated therein or necessary to make the statements therein not misleading, (ii) arises out of, or is based upon, the failure of the Directed Share Participant to pay for and accept delivery of Directed Shares that the Directed Share Participant agreed to purchase, or (iii) is otherwise related to the Directed Share Program; provided that the Company shall not be liable under this clause (iii) for any loss, claim, damage, liability or action that is determined in a final judgment by a court of competent jurisdiction to have resulted from the gross negligence or willful misconduct of the Barclays Entities. The Company shall reimburse the Barclays Entities promptly upon demand for any legal or other expenses reasonably incurred by them in connection with investigating or defending or preparing to defend against any such loss, claim, damage, liability or action as such expenses are incurred.

11. Defaulting Underwriters.

(a) If, on any Delivery Date, any Underwriter defaults in its obligations to purchase the Stock that it has agreed to purchase under this Agreement, the remaining non-defaulting Underwriters may in their discretion arrange for the purchase of such Stock by the non-defaulting Underwriters or other persons satisfactory to the Company on the terms contained in this Agreement. If, within 36 hours after any such default by any Underwriter, the non-defaulting Underwriters do not arrange for the purchase of such Stock, then the Company shall be entitled to a further period of 36 hours within which to procure other persons satisfactory to the non-defaulting Underwriters to purchase such Stock on such terms. In the event that within the respective prescribed periods, the non-defaulting Underwriters notify the Company that they have so arranged for the purchase of such Stock, or the Company notifies the non-defaulting Underwriters that it has so arranged for the purchase of such Stock, either the non-defaulting Underwriters or the Company may postpone such Delivery Date for up to seven full business days in order to effect any changes that in the opinion of counsel for the Company or counsel for the Underwriters may be necessary in the Registration Statement, the Prospectus or in any other document or arrangement, and the Company agrees to promptly prepare any amendment or supplement to the Registration Statement, the Prospectus or in any such other document or arrangement that effects any such changes. As used in this Agreement, the term “Underwriter” includes, for all purposes of this Agreement unless the context requires otherwise, any party not listed in Schedule I hereto that, pursuant to this Section 11, purchases Stock that a defaulting Underwriter agreed but failed to purchase.

(b) If, after giving effect to any arrangements for the purchase of the Stock of a defaulting Underwriter or Underwriters by the non-defaulting Underwriters and the Company as provided in paragraph (a) above, the total number of shares of the Stock that remains unpurchased does not exceed one-eleventh of the total number of shares of all the Stock, then the Company shall have the right to require each non-defaulting Underwriter to purchase the total number of shares of Stock that such Underwriter agreed to purchase hereunder plus such Underwriter’s pro rata share (based on the total number of shares of Stock that such Underwriter agreed to purchase hereunder) of the Stock of such defaulting Underwriter or Underwriters for which such arrangements have not been made; provided that the non-defaulting Underwriters shall not be obligated to purchase more than 110% of the total number of shares of Stock that it agreed to purchase on such Delivery Date pursuant to the terms of Section 3.

(c) If, after giving effect to any arrangements for the purchase of the Stock of a defaulting Underwriter or Underwriters by the non-defaulting Underwriters and the Company as provided in paragraph (a) above, the total number of shares of Stock that remains unpurchased exceeds one-eleventh of the total number of shares of all the Stock, or if the Company shall not exercise the right described in paragraph (b) above, then this Agreement shall terminate without liability on the part of the non-defaulting Underwriters. Any termination of this Agreement pursuant to this Section 11 shall be without liability on the part of the Company, except that the Company will continue to be liable for the payment of expenses as set forth in Sections 8 and 13 and except that the provisions of Section 10 shall not terminate and shall remain in effect.

(d) Nothing contained herein shall relieve a defaulting Underwriter of any liability it may have to the Company or any non-defaulting Underwriter for damages caused by its default.

12. Termination. The obligations of the Underwriters hereunder may be terminated by the Representative 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) and 9(o) shall have occurred or if the Underwriters shall decline to purchase the Stock for any reason permitted under this Agreement.

13. Reimbursement of Underwriters’ Expenses. If (a) the Company or any Selling Stockholder shall fail to tender the Stock for delivery to the Underwriters for any reason, or (b) the Underwriters shall decline to purchase the Stock for any reason permitted under this Agreement, the Company will reimburse the Underwriters for all reasonable out-of-pocket expenses (including fees and disbursements of counsel for the Underwriters) incurred by the Underwriters in connection with this Agreement and the proposed purchase of the Stock, and upon demand the Company shall pay the full amount thereof to the Representative. Notwithstanding the foregoing, if this Agreement is terminated pursuant to Section 11 by reason of the default of one or more Underwriters or the purchase of the Stock is not consummated as a result of the occurrence of any of the events described in Section 9(o) (other than the occurrence of an event described in Section 9(o)(i)(B)), the Company shall not be obligated to reimburse any defaulting Underwriter on account of those expenses.

14. Research Analyst Independence. The Company acknowledges that the Underwriters’ 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 such Underwriters’ 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 each Selling Stockholder hereby waives and releases, to the fullest extent permitted by law, any claims that the Company or any Selling Stockholder may have against the Underwriters 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 any Selling Stockholder by such Underwriters’ investment banking divisions. The Company and each Selling Stockholder acknowledges that each of the Underwriters 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.

15. No Fiduciary Duty. The Company and each Selling Stockholder acknowledges and agrees that in connection with this offering, sale of the Stock or any other services the Underwriters 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 Underwriters: (a) no fiduciary or agency relationship between the Company, any Selling Stockholder and any other person, on the one hand, and the Underwriters, on the other, exists; (b) the Underwriters are not acting as advisors, expert or otherwise, to either the Company or any Selling Stockholder, including, without limitation, with respect to the determination of the public offering price of the Stock, and such relationship between the Company and any Selling Stockholder, on the one hand, and the Underwriters, on the other, is entirely and solely commercial, based on arms-length negotiations; (c) any duties and obligations that the Underwriters may have to the Company or any Selling Stockholder shall be limited to those duties and obligations specifically stated herein; and (d) the Underwriters and their respective affiliates may have interests that differ from those of the Company and each Selling Stockholder. The Company and each Selling Stockholder hereby waives any claims that the Company or any Selling Stockholder may have against the Underwriters with respect to any breach of fiduciary duty in connection with this offering.

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

(a) if to the Underwriters, shall be delivered or sent by mail or facsimile transmission to Barclays Capital Inc., ▇▇▇ ▇▇▇▇▇▇▇ ▇▇▇▇▇▇, ▇▇▇ ▇▇▇▇, ▇▇▇ ▇▇▇▇ ▇▇▇▇▇, Attention: Syndicate Registration (Fax: (▇▇▇) ▇▇▇-▇▇▇▇), with a copy, in the case of any notice pursuant to Section 10(d), to the Director of Litigation, Office of the General Counsel, Barclays Capital Inc., ▇▇▇ ▇▇▇▇▇▇▇ ▇▇▇▇▇▇, ▇▇▇ ▇▇▇▇, ▇▇▇ ▇▇▇▇ ▇▇▇▇▇;

(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: ▇▇▇▇▇▇ ▇. ▇▇▇▇▇, ▇▇., President and Chief Financial Officer; and

(c) if to any Selling Stockholder, shall be delivered or sent by mail or facsimile transmission to such Selling Stockholder at the address set forth on Schedule II 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 on behalf of the Underwriters by Barclays Capital Inc., and the Company and the Underwriters shall be entitled to act and rely upon any request, consent, notice or agreement given or made on behalf of any Selling Stockholder by the Custodian.

In accordance with the requirements of the USA Patriot Act (Title III of Pub. L. 107-56 (signed into law October 26, 2001)), the underwriters are required to obtain, verify and record information that identifies their respective clients, including the Company and the Selling

Stockholders, which information may include the name and address of their respective clients, as well as other information that will allow the underwriters to properly identify their respective clients.

17. Persons Entitled to Benefit of Agreement. This Agreement shall inure to the benefit of and be binding upon the Underwriters, the Company, each Selling Stockholder and their respective 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 each Selling Stockholder contained in this Agreement shall also be deemed to be for the benefit of the directors, officers, employees and agents of the Underwriters and each person or persons, if any, who control any Underwriter within the meaning of Section 15 of the Securities Act, and (b) the indemnity agreement of the Underwriters contained in Section 10(c) of this Agreement shall be deemed to be for the benefit of the directors of the Company, the officers of the Company who have signed the Registration Statement and any person controlling the Company within the meaning of Section 15 of the Securities Act. Nothing in this Agreement is intended or shall be construed to give any person, other than the persons referred to in this Section 17, any legal or equitable right, remedy or claim under or in respect of this Agreement or any provision contained herein.

18. Survival. The respective indemnities, representations and warranties of the Company, each Selling Stockholder and the Underwriters 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.

19. 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.

20. Governing Law. 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).

21. Waiver of Jury Trial. The Company and the Underwriters 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.

22. 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.

23. 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.

[Signature Page Follows]

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

	Very truly yours,

	VANTAGE ENERGY INC.


	By:
		Name:
		Title:

	VANTAGE ENERGY INVESTMENT LLC


	By:
		Name:
		Title:


	VANTAGE ENERGY INVESTMENT II LLC


	By:
		Name:
		Title:

[Signature Page to Underwriting Agreement]

Accepted:

BARCLAYS CAPITAL INC.

For itself and as Representative
of the several Underwriters named
in Schedule I hereto

By:
	Authorized Representative

[Signature Page to Underwriting Agreement]

SCHEDULE I

Underwriters		Number of Shares of Firm Stock

Barclays Capital Inc.
▇▇▇▇▇▇▇, Sachs & Co.
Citigroup Global Markets Inc.
Credit Suisse Securities (USA) LLC
Tudor, Pickering, ▇▇▇▇ & Co. Securities, Inc.
▇▇▇▇▇ Fargo Securities, LLC
▇▇▇▇▇▇▇ ▇▇▇▇▇ & Associates, Inc.
RBC Capital Markets, LLC
Scotia Capital (USA) Inc.
KeyBanc Capital Markets Inc.
Mitsubishi UFJ Securities (USA), Inc.
Total

SCHEDULE II

Name and Address of Selling Stockholder	Number of Shares of Firm Stock	Number of Shares of Option Stock

Vantage Energy Investment LLC ▇▇▇ ▇▇▇▇▇▇▇▇▇ ▇▇▇▇▇ ▇▇▇▇, ▇▇▇▇▇ ▇▇▇ ▇▇▇▇▇▇▇▇▇, ▇▇▇▇▇▇▇▇ ▇▇▇▇▇
Vantage Energy Investment II LLC ▇▇▇ ▇▇▇▇▇▇▇▇▇ ▇▇▇▇▇ ▇▇▇▇, ▇▇▇▇▇ ▇▇▇ ▇▇▇▇▇▇▇▇▇, ▇▇▇▇▇▇▇▇ ▇▇▇▇▇
Total

SCHEDULE III

PERSONS DELIVERING LOCK-UP AGREEMENTS

Directors

S. ▇▇▇ ▇▇▇▇▇▇, ▇▇.

▇. ▇▇▇▇▇▇ ▇▇▇▇▇

▇▇▇▇▇▇▇▇ ▇. ▇▇▇▇▇▇

[others]

Officers

▇▇▇▇▇ ▇▇▇▇▇▇▇

▇▇▇▇▇▇ ▇▇▇▇▇

▇▇▇▇ ▇. ▇▇▇▇▇, ▇▇.

W. Worth ▇▇▇▇▇▇

▇▇▇▇ ▇. ▇▇▇▇▇▇▇

Stockholders

Vantage Energy Investment LLC

Vantage Energy Investment II LLC

SCHEDULE IV

ORALLY CONVEYED PRICING INFORMATION

1. [Public offering price]

2. [Number of shares offered]

SCHEDULE V

ISSUER FREE WRITING PROSPECTUSES – ROAD SHOW MATERIALS

[Electronic roadshow as made available on ▇▇▇▇://▇▇▇.▇▇▇▇▇▇▇▇▇▇▇.▇▇▇.]

[Electronic roadshow as made available on ▇▇▇▇://▇▇▇.▇▇▇▇▇▇▇▇▇▇▇▇▇▇.▇▇▇.]

[Insert other “road show” materials, if any]

SCHEDULE VI

LIST OF SUBSIDIARIES OF VANTAGE ENERGY INC.

Name of Subsidiary		Jurisdiction of Organization

Siduri Development, LLC		Texas

Vantage Energy Appalachia II LLC		Delaware

Vantage Energy Appalachia LLC		Pennsylvania

Vantage Energy Black Warrior LLC		Delaware

Vantage Energy Cherokee LLC		Delaware

Vantage Energy Green River LLC		Delaware

Vantage Energy II, LLC		Delaware

Vantage Energy Management Company		Delaware

Vantage Energy Piceance LLC		Delaware

Vantage Energy Uinta LLC		Delaware

Vantage Energy, LLC		Delaware

Vantage Fort Worth Energy LLC		Delaware

Vista Gathering, LLC		Delaware

EXHIBIT A

FORM OF LOCK-UP LETTER AGREEMENT

BARCLAYS CAPITAL INC.

As Representative of the several

Underwriters named in Schedule I,

c/o Barclays Capital Inc.

▇▇▇ ▇▇▇▇▇▇▇ ▇▇▇▇▇▇
▇▇▇ ▇▇▇▇, ▇▇▇ ▇▇▇▇ ▇▇▇▇▇

Ladies and Gentlemen:

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

In consideration of the execution of the Underwriting Agreement by the Underwriters, and for other good and valuable consideration, the undersigned hereby irrevocably agrees that, without the prior written consent of Barclays Capital Inc., on behalf of the Underwriters, 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

Exhibit A-1

date hereof and ending on the 180th day after the date of the Prospectus relating to the Offering (such 180-day period, the “Lock-Up Period”).

The foregoing paragraph shall not apply to (a) 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); provided that it shall be a condition to any transfer pursuant to this clause (a) 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; and (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, and the Securities 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 180-day period referred to above, (b) 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, that the restrictions shall apply to shares of Common Stock issued upon such exercise or conversion, (c) 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; 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 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 (d) any demands or requests for, exercise of any right with respect to, or any action taken 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.

If the undersigned is an officer or director of the Company, (i) the undersigned agrees that the foregoing provisions shall be equally applicable to any issuer-directed Stock, as referred to in FINRA Rule 5131(d)(2)(A) that the undersigned may purchase in the Offering pursuant to an allocation of Stock that is directed in writing by the Company, (ii) Barclays Capital Inc. agrees that, at least three business days before the effective date of any release or waiver of the foregoing restrictions in connection with a transfer of shares of Common Stock, Barclays Capital Inc. will notify the Company of the impending release or waiver, and (iii) the Company has agreed in the Underwriting Agreement to announce the impending release or waiver by issuing a press release through a major news service (as referred to in FINRA Rule 5131(d)(2)(B)) at least two

Exhibit A-2

business days before the effective date of the release or waiver. Any release or waiver granted by Barclays Capital Inc. hereunder to any such officer or director shall only be effective two business days after the publication date of such press release. The provisions of this paragraph will not apply if both (a) the release or waiver is effected solely to permit a transfer not for consideration, and (b) the transferee has agreed in writing to be bound by the same terms described in this letter that are applicable to the transferor, to the extent and for the duration that such terms remain in effect at the time of the transfer.

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 the Underwriters that it does not intend to proceed with the Offering, if the Underwriters notify the Company that they 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 the Underwriters 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 the Underwriters.

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 the Underwriters or (2) [·], 2014(2), in the event that the Underwriting Agreement has not been executed by that date.

[Signature page follows]

(2) Sunset date being confirmed with Barclays.

Exhibit A-3

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 A-4

EXHIBIT B

Form of Press Release

Vantage Energy Inc.
[Insert date]

Vantage Energy Inc., (the “Company”) announced today that Barclays Capital Inc., the lead book-running manager in the Company’s recent public sale of [·] shares of common stock is [waiving]/[releasing] a lock-up restriction with respect to [·] shares of the Company’s common stock held by [certain officers or directors]/[an officer or director](3) of the Company.(4) The [waiver]/[release] will take effect on [insert date], and the shares may be sold or otherwise disposed of on or after such date.

This press release is not an offer for sale of the securities in the United States or in any other jurisdiction where such offer is prohibited, and such securities may not be offered or sold in the United States absent registration or an exemption from registration under the United States Securities Act of 1933, as amended.

(3) If Barclays Capital Inc. so requests in writing (either in or accompanying the notice to the Company about the impending release or waiver), the Company will include in the press release such other information as Barclays Capital Inc. may require regarding the circumstances of the release or waiver and/or the identity of the officer(s) or director(s) with respect to which the release or waiver applies.

(4) Depending on the circumstances, Barclays may wish to consider whether it may be appropriate to include the names of the specific officers/directors for which a waiver or release has been granted.

Exhibit B-1

EXHIBIT C-1

FORM OF OPINION OF COMPANY’S COUNSEL

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

[To come]

Exhibit C-1-1

EXHIBIT C-2

FORM OF OPINION OF SELLING STOCKHOLDER(S)’ COUNSEL

[To come]

Exhibit C-2-1

EXHIBIT C-3

CERTIFICATE OF CHIEF FINANCIAL OFFICER(5)

(5) If necessary. Language to be determined based on the comfort letter to be delivered by KPMG.

Exhibit C-3-1

VANTAGE ENERGY INC. Common Stock UNDERWRITING AGREEMENT

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