HORNBECK OFFSHORE SERVICES, INC. Purchase Agreement March 2, 2012

Exhibit 10.1

Execution version

$375,000,000

▇▇▇▇▇▇▇▇ OFFSHORE SERVICES, INC.

5.875% Senior Notes due 2020

Purchase Agreement

March 2, 2012

▇.▇. ▇▇▇▇▇▇ Securities LLC

As Representative of the

several Initial Purchasers listed

in Schedule 1 hereto

c/o ▇.▇. ▇▇▇▇▇▇ Securities LLC

▇▇▇ ▇▇▇▇▇▇▇ ▇▇▇▇▇▇

▇▇▇ ▇▇▇▇, ▇▇▇ ▇▇▇▇ ▇▇▇▇▇

Ladies and Gentlemen:

▇▇▇▇▇▇▇▇ Offshore Services, Inc., a Delaware corporation (the “Company”), proposes to issue and sell to the several initial purchasers listed in Schedule 1 hereto (the “Initial Purchasers”), for whom you are acting as representative (the “Representative”), $375,000,000 principal amount of its 5.875% Senior Notes due 2020 (the “Securities”). The Securities will be issued pursuant to an Indenture to be dated as of March 16, 2012 (the “Indenture”) among the Company, the guarantors listed in Schedule 2 hereto (the “Guarantors”) and ▇▇▇▇▇ Fargo Bank, National Association, as trustee (the “Trustee”), and will be guaranteed on an unsecured senior basis by each of the Guarantors (the “Guarantees”).

The Securities will be sold to the Initial Purchasers without being registered under the Securities Act of 1933, as amended (the “Securities Act”), in reliance upon an exemption therefrom. The Company and the Guarantors have prepared a preliminary offering memorandum dated March 2, 2012 (the “Preliminary Offering Memorandum”) and will prepare an offering memorandum dated the date hereof (the “Offering Memorandum”) setting forth information concerning the Company and the Securities. Copies of the Preliminary Offering Memorandum have been, and copies of the Offering Memorandum will be, delivered by the Company to the Initial Purchasers pursuant to the terms of this Agreement. The Company hereby confirms that it has authorized the use of the Preliminary Offering Memorandum, the other Time of Sale Information (as defined below) and the Offering Memorandum in connection with the offering and resale of the Securities by the Initial Purchasers in the manner contemplated by this Agreement. Capitalized terms used but not defined herein shall have the meanings given to such terms in the Preliminary Offering Memorandum. References herein to the

Preliminary Offering Memorandum, the Time of Sale Information and the Offering Memorandum shall be deemed to refer to and include any document incorporated by reference therein.

At or prior to the time when sales of the Securities were first made (the “Time of Sale”), the following information shall have been prepared (collectively, the “Time of Sale Information”): the Preliminary Offering Memorandum, as supplemented and amended by the written communications listed on Annex A hereto.

Holders of the Securities (including the Initial Purchasers and their direct and indirect transferees) will be entitled to the benefits of a Registration Rights Agreement, to be dated the Closing Date (as defined below) and substantially in the form attached hereto as Exhibit A (the “Registration Rights Agreement”), pursuant to which the Company and the Guarantors will agree to file one or more registration statements with the Securities and Exchange Commission (the “Commission”) providing for the registration under the Securities Act of the issuance or resale of the Securities or the Exchange Securities referred to (and as defined) in the Registration Rights Agreement.

The Company hereby confirms its agreement with the several Initial Purchasers concerning the purchase and resale of the Securities, as follows:

1. Purchase and Resale of the Securities. (a) The Company agrees to issue and sell the Securities to the several Initial Purchasers as provided in this Agreement, and each Initial Purchaser, on the basis of the representations, warranties and agreements set forth herein and subject to the conditions set forth herein, agrees, severally and not jointly, to purchase from the Company the respective principal amount of Securities set forth opposite such Initial Purchaser’s name in Schedule 1 hereto at a price equal to 98.4% of the principal amount thereof plus accrued interest, if any, from March 16, 2012 to the Closing Date. The Company will not be obligated to deliver any of the Securities except upon payment for all the Securities to be purchased as provided herein.

(b) The Company understands that the Initial Purchasers intend to offer the Securities for resale on the terms set forth in the Time of Sale Information. Each Initial Purchaser, severally and not jointly, represents, warrants and agrees that:

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

(ii) it has not solicited offers for, or offered or sold, and will not solicit offers for, or offer or sell, the Securities by means of any form of general solicitation or general advertising within the meaning of Rule 502(c) of Regulation D under the Securities Act (“Regulation D”) or in any manner involving a public offering within the meaning of Section 4(2) of the Securities Act; and

(iii) it has not solicited offers for, or offered or sold, and will not solicit offers for, or offer or sell, the Securities as part of their initial offering except:

(A) within the United States to persons whom it reasonably believes to be QIBs in transactions pursuant to Rule 144A under the Securities Act (“Rule 144A”) and in connection with each such sale, it has taken or will take reasonable steps to ensure that the purchaser of the Securities is aware that (1) such sale is being made in reliance on Rule 144A, (2) the Securities have not been and, except as described in the Time of Sale Information, will not be registered under the Securities Act and (3) the Securities may not be offered, sold or otherwise transferred except as described in the Time of Sale Information; or

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

(c) Each Initial Purchaser acknowledges and agrees that the Company and, for purposes of the opinions to be delivered to the Initial Purchasers pursuant to Sections 6(f) and 6(g), counsel for the Company and counsel for the Initial Purchasers, respectively, may rely upon the accuracy of the representations and warranties of the Initial Purchasers, and compliance by the Initial Purchasers with their agreements, contained in paragraph (b) above (including Annex C hereto), and each Initial Purchaser hereby consents to such reliance.

(d) The Company acknowledges and agrees that the Initial Purchasers may offer and sell Securities to or through any affiliate of an Initial Purchaser and that any such affiliate may offer and sell Securities purchased by it to or through any Initial Purchaser so long as (i) such offers and sales are consistent with Section 1(b) and (ii) the Initial Purchasers remain liable for the actions or omission of any such authorized affiliate to the same extent as if such actions or omissions were performed by the Initial Purchaser.

(e) The Company and the Guarantors acknowledge and agree that the Initial Purchasers are acting solely in the capacity of an arm’s length contractual counterparty to the Company and the Guarantors with respect to the offering of Securities contemplated hereby (including in connection with determining the terms of the offering) and not as financial advisors or fiduciaries to, or agents of, the Company, the Guarantors or any other person. Additionally, neither the Representative nor any other Initial Purchaser is advising the Company, the Guarantors or any other person as to any legal, tax, investment, accounting or regulatory matters in any jurisdiction. The Company and the Guarantors shall consult with their own advisors concerning such

matters and shall be responsible for making their own independent investigation and appraisal of the transactions contemplated hereby, and neither the Representative nor any other Initial Purchaser shall have any responsibility or liability to the Company or the Guarantors with respect thereto. Any review by the Representative or any Initial Purchaser of the Company, the Guarantors, and the transactions contemplated hereby or other matters relating to such transactions will be performed solely for the benefit of the Representative or such Initial Purchaser, as the case may be, and shall not be on behalf of the Company, the Guarantors or any other person.

2. Payment and Delivery. (a) Payment for and delivery of the Securities will be made at the offices of ▇▇▇▇▇▇ & ▇▇▇▇▇▇ LLP, First City Tower, ▇▇▇▇ ▇▇▇▇▇▇, ▇▇▇▇▇ ▇▇▇▇, ▇▇▇▇▇▇▇, ▇▇▇▇▇ ▇▇▇▇▇-▇▇▇▇, at 10:00 A.M., New York City time, on March 16, 2012, or at such other time or place on the same or such other date, not later than the fifth business day thereafter, as the Representative and the Company may agree upon in writing. The time and date of such payment and delivery is referred to herein as the “Closing Date”.

(b) Payment for the Securities shall be made by wire transfer in immediately available funds to the account(s) specified by the Company to the Representative against delivery to the Trustee as custodian for The Depository Trust Company, for the account of the Initial Purchasers, of one or more global notes representing the Securities (collectively, the “Global Note”), with any transfer taxes payable in connection with the sale of the Securities duly paid by the Company. The Global Note will be made available for inspection by the Representative not later than 1:00 P.M., New York City time, on the business day prior to the Closing Date.

3. Representations and Warranties of the Company and the Guarantors. The Company and the Guarantors jointly and severally represent and warrant to each Initial Purchaser that:

(a) Preliminary Offering Memorandum, Time of Sale Information and Offering Memorandum. The Preliminary Offering Memorandum, as of its date, did not, the Time of Sale Information, at the Time of Sale, did not, and at the Closing Date, will not, and the Offering Memorandum, in the form first used by the Initial Purchasers to confirm sales of the Securities and as of the Closing Date, will not, contain any untrue statement of a material fact or omit to state a material fact necessary in order to make the statements therein, in the light of the circumstances under which they were made, not misleading; provided that the Company and the Guarantors make no representation or warranty with respect to any statements or omissions made in reliance upon and in conformity with information relating to any Initial Purchaser furnished to the Company in writing by such Initial Purchaser through the Representative expressly for use in the Preliminary Offering Memorandum, the Time of Sale Information or the Offering Memorandum.

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

(c) Incorporated Documents. The documents incorporated by reference in each of the Time of Sale Information and the Offering Memorandum, when filed with the Commission, conformed or will conform, as the case may be, in all material respects to the requirements of the Exchange Act and the rules and regulations of the Commission thereunder, and did not and will not contain any untrue statement of a material fact or omit to state a material fact required to be stated therein or necessary in order to make the statements therein, in the light of the circumstances under which they were made, not misleading.

(d) Financial Statements. The financial statements, and the related notes thereto, of the Company included or incorporated by reference in the Time of Sale Information and the Offering Memorandum present fairly, in all material respects, the consolidated financial position of the Company and its consolidated subsidiaries as of the dates indicated and the results of their operations and the changes in their consolidated cash flows for the periods specified; and said financial statements have been prepared in conformity with United States generally accepted accounting principles and practices applied on a consistent basis, except as described in the notes to such financial statements; and the other financial and statistical information and any other financial data included or incorporated by reference in the Time of Sale Information and the Offering Memorandum present fairly, in all material respects, the information purported to be shown thereby at the respective dates or for the respective periods to which they apply and, to the extent that such information is set forth in or has been derived from the financial statements and accounting books and records of the

Company, have been prepared on a basis consistent with such financial statements and the books and records of the Company. The interactive data in eXtensbile Business Reporting Language included or incorporated by reference in the Offering Memorandum and the Time of Sale Information fairly presents the information called for in all material respects and has been prepared in accordance with the Commission’s rules and guidelines applicable thereto.

(e) No Material Adverse Change. None of the Company, the Guarantors, or any of their subsidiaries has sustained since the date of the latest audited financial statements included or incorporated by reference in the Time of Sale Information any material 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, otherwise than as set forth or contemplated in the Time of Sale Information and the Offering Memorandum; and, since the respective dates as of which information is given in the Time of Sale Information and the Offering Memorandum, there has not been any material change in the capital stock, material increase in long-term debt or any material decreases in consolidated net current assets or stockholders’ equity of the Company, the Guarantors, or any of their subsidiaries or any material adverse change, or any development involving a prospective material adverse change, in or affecting the general affairs, management, current or future consolidated financial position, stockholders’ equity or results of operations of the Company and its subsidiaries taken as a whole (a “Material Adverse Effect”);

(f) Organization and Good Standing. Each of the Company and the Guarantors has been duly incorporated as a corporation or formed as a limited liability company and is validly existing as a corporation or limited liability company in good standing under the laws of the State of Delaware, with the corporate or limited liability company power and authority to own its properties and conduct its business as described in the Time of Sale Information and the Offering Memorandum, and has been duly qualified as a foreign corporation or limited liability company for the transaction of business and is in good standing under the laws of each other jurisdiction in which it owns or leases properties or conducts any business so as to require such qualification, except where the failure to be so qualified or in good standing in any such jurisdiction would not have a material adverse effect on the ability of the Company and its subsidiaries taken as a whole to own or lease their properties or conduct their businesses as described in the Time of Sale Information and the Offering Memorandum;

(g) Capitalization. The Company had, at the date indicated in the Time of Sale Information and the Offering Memorandum, a duly authorized, issued and outstanding capitalization as set forth in the Time of Sale Information and the Offering Memorandum under the caption “Capitalization”; all of the issued shares of capital stock of the Company have been duly and validly authorized and issued and are fully paid and non-assessable; such authorized capital stock of the Company conforms as to legal matters

in all material respects to the description thereof contained in the Time of Sale Information and the Offering Memorandum; all of the equity interests in each subsidiary of the Company, have been duly and validly authorized and issued and are fully paid and non-assessable and are owned directly or indirectly by the Company, free and clear of any lien, charge, encumbrance, security interest, restriction on voting or transfer or any other claim of any third party;

(h) The Indenture. The Indenture has been duly authorized by the Company and the Guarantors and, when duly executed and delivered by the Company and the Guarantors (assuming the authorization, execution and delivery by the Trustee), will constitute a valid and legally binding instrument of the Company and the Guarantors, enforceable against the Company and the Guarantors in accordance with its terms, subject as to enforcement, to bankruptcy, insolvency, fraudulent transfer, fraudulent conveyance, moratorium, reorganization and laws of general applicability relating to or affecting creditors’ rights and general equity principles (regardless of whether enforceability is considered in a proceeding in equity or at law); the Indenture conforms, in all material respects to the requirements of the Trust Indenture Act of 1939, as amended (the “Trust Indenture Act”), and the rules and regulations of the Commission applicable to an indenture that is qualified thereunder; and the Indenture conforms, in all material respects, to the description thereof in the Time of Sale Information and the Offering Memorandum;

(i) The Securities. The Securities have been duly authorized by the Company, and, when issued and delivered as provided in this Agreement and duly authenticated pursuant to the Indenture will be duly executed, authenticated, issued and delivered and will constitute valid and legally binding obligations of the Company entitled to the benefits provided by the Indenture, enforceable against the Company in accordance with its terms, subject as to enforcement, to bankruptcy, insolvency, fraudulent transfer, fraudulent conveyance, moratorium, reorganization and laws of general applicability relating to or affecting creditors’ rights and general equity principles (regardless of whether enforceability is considered in a proceeding in equity or at law); and the Securities will conform, in all material respects, to the descriptions thereof in the Time of Sale Information and the Offering Memorandum;

(j) The Guarantees. The Guarantees have been duly authorized by the Guarantors, and, when issued and delivered as provided in this Agreement and duly authenticated pursuant to the Indenture will be duly executed, authenticated, issued and delivered and will constitute valid and legally binding obligations of the Guarantors entitled to the benefits provided by the Indenture enforceable against the Guarantors in accordance with its terms, subject as to enforcement, to bankruptcy, insolvency, fraudulent transfer, fraudulent conveyance, moratorium, reorganization and laws of general applicability relating to or affecting creditors’ rights and general equity principles (regardless of whether enforceability is considered in a proceeding in equity or at law); and the Guarantees will conform, in all material respects, to the descriptions thereof in the Time of Sale Information and the Offering Memorandum;

(k) The Exchange Securities. The notes and related guarantees having terms substantially identical to (1) the Securities (the “Exchange Securities”) issuable in exchange for the Securities in an exchange offer (the “Exchange Offer”) pursuant to the Registration Rights Agreement and (2) the Guarantees, respectively, have been duly authorized by the Company and the Guarantors, and, when issued and delivered pursuant to the Registration Rights Agreement and duly authenticated pursuant to the Indenture, will have been duly executed, authenticated, issued and delivered and will constitute valid and legally binding obligations of the Company and the Guarantors entitled to the benefits provided by the Indenture, enforceable against the Company and the Guarantors in accordance with its terms, subject as to enforcement, to bankruptcy, insolvency, fraudulent transfer, fraudulent conveyance, moratorium, reorganization and laws of general applicability relating to or affecting creditors’ rights and general equity principles (regardless of whether enforceability is considered in a proceeding in equity or at law);;

(l) Purchase Agreement. This Agreement has been duly authorized, executed and delivered by the Company and the Guarantors;

(m) Registration Rights Agreements. The Registration Rights Agreement has been duly authorized by the Company and the Guarantors and, when duly executed and delivered by the Company and the Guarantors, shall constitute the valid and legally binding obligation of the Company and the Guarantors, enforceable against the Company and the Guarantors in accordance with its terms, subject as to enforcement, to bankruptcy, insolvency, fraudulent transfer, fraudulent conveyance, moratorium, reorganization and laws of general applicability relating to or affecting creditors’ rights and general equity principles (regardless of whether enforceability is considered in a proceeding in equity or at law); and except that rights to indemnification thereunder may be limited by federal or state securities laws or public policy relating thereto; and the Registration Rights Agreement will conform, in all material respects, to the description thereof in the Time of Sale Information and the Offering Memorandum;

(n) Legal Summaries. The statements set forth in the Time of Sale Information and the Offering Memorandum under the captions “Description of notes,” “Description of notes—Registration rights,” and “United States federal income and estate tax considerations”, insofar as they constitute summaries of the legal matters, documents or proceedings referred to therein, fairly present, in all material respects, the information called for with respect to such legal matters, documents or proceedings;

(o) No Violation. None of the Company, the Guarantors, or any of their subsidiaries is in violation of its certificate of incorporation or certificate of formation, or its bylaws or limited liability company agreement (or other organizational documents), or

in default in the performance or observance of any obligation, covenant or condition contained in any indenture, mortgage, deed of trust, loan agreement, lease or other agreement or instrument to which it is a party or by which it or any of its properties may be bound, other than such defaults that individually or in the aggregate would not have a Material Adverse Effect;

(p) No Conflicts. The issue and sale of the Securities (including the Guarantees) and the compliance by the Company and the Guarantors with all of the provisions of the Securities, the Guarantees, the Indenture, the Registration Rights Agreement and this Agreement and the consummation of the transactions herein and therein contemplated (A) will not 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 or other agreement or instrument to which the Company or any of its subsidiaries is a party or by which the Company or any of its subsidiaries is bound or to which any of the property or assets of the Company or any of its subsidiaries is subject, except such conflict, breach or violation as would not have a Material Adverse Effect, (B) will not result in any violation of the provisions of the Certificate of Incorporation or bylaws of the Company or any significant subsidiary, and (C) will not result in the violation of any statute or any order, rule or regulation of any court or governmental agency or body having jurisdiction over the Company or any of its subsidiaries or any of their properties, except such violations as would not have a Material Adverse Effect;

(q) No Consents Required. Except as disclosed in the Time of Sale Information and the Offering Memorandum, no consent, approval, authorization, order, registration or qualification of or with any such court or governmental agency or body is required for the issue and sale of the Securities (including the Guarantees) or the consummation by the Company of the transactions contemplated by this Agreement, the Registration Rights Agreement or the Indenture, except for the filing and effectiveness of a registration statement by the Company with the Commission pursuant to the Securities Act and the Registration Rights Agreement, the qualification of the Indenture under the Trust Indenture Act in relation to the Exchange Securities and such consents, approvals, authorizations, registrations or qualifications as may be required under state securities or Blue Sky laws in connection with the purchase and distribution of the Securities by the Initial Purchasers in the manner contemplated by this Agreement, the Time of Sale Information and the Offering Memorandum and except for such consents the failure to obtain would not have a Material Adverse Effect;

(r) Legal Proceedings. Except as set forth in the Time of Sale Information and the Offering Memorandum, there are no legal or governmental proceedings pending to which the Company, the Guarantors, or any of their subsidiaries is a party or of which any property of the Company or any of its subsidiaries is the subject which, if determined adversely to the Company or any of its subsidiaries, would individually or in the aggregate have a Material Adverse Effect; and, to the best of the Company’s knowledge, no such proceedings are threatened or contemplated by governmental authorities or threatened by others;

(s) Independent Accountants. Ernst & Young LLP, who have certified the audited consolidated financial statements of the Company and its subsidiaries, are independent public accountants as required under the Securities Act and the rules and regulations of the Commission thereunder and the rules and regulations of the Public Company Accounting Oversight Board;

(t) Title to Personal Property. The Company and its subsidiaries own no material real property (other than leasehold interests); the Company and its subsidiaries have good title to (i) all barges, tugs, tankers, offshore supply vessels, multi-purpose supply vessels, anchor-handling towing supply vessels and other vessels (collectively, “Vessels”) owned by them and (ii) all other personal property owned by them, in each case free and clear of all liens, encumbrances and defects except such as are described in the Time of Sale Information and the Offering Memorandum or such as do not materially affect the value of such property and do not interfere with the use made and proposed to be made of such property by the Company and its subsidiaries; and except for the leases at HOS Port, LLC, none of the real property and building space held under lease by the Company and its subsidiaries are material to the Company and its subsidiaries taken as a whole and, should their existing leases (except for such leases) expire or terminate, the cost to secure new facilities would not result in a Material Adverse Effect;

(u) Intellectual Property. The Company and its subsidiaries own or possess adequate licenses or other rights to use all trademarks, service marks, trade names and know-how necessary to conduct the businesses now or proposed to be operated by them as described in the Time of Sale Information and the Offering Memorandum, and neither the Company nor any of its subsidiaries has received any notice of conflict with (or knows of any such conflict with) asserted rights of others with respect to any trademarks, service marks, trade names or know-how which, if such assertion of conflict were sustained, would individually or in the aggregate have a Material Adverse Effect;

(v) No Undisclosed Relationships. No relationship, direct or indirect, exists between or among the Company or any of its subsidiaries, on the one hand, and the directors, officers, stockholders or other affiliates of the Company or any of its subsidiaries, on the other, that would be required by the Securities Act to be described in a registration statement to be filed with the Commission and that is not so described in each of the Time of Sale Information and the Offering Memorandum.

(w) Investment Company Act. The Company and the Guarantors are not and, after giving effect to the offering and sale of the Securities and the application of the proceeds thereof as described in the Time of Sale Information and the Offering Memorandum, will not be required to register as an “investment company” as such term is defined in the Investment Company Act of 1940, as amended, and the rules and regulations of the Commission thereunder (collectively, the “Investment Company Act”);

(x) Taxes. The Company and its subsidiaries have filed all necessary federal, state, local and foreign income and franchise tax returns or have timely requested extensions thereof and have paid all taxes shown as due thereon or made adequate reserve or provision therefor; and other than tax deficiencies which the Company or any subsidiary is contesting in good faith and for which the Company or such subsidiary has provided adequate reserves, there is no tax deficiency that has been asserted against the Company or any subsidiary that would individually or in the aggregate have a Material Adverse Effect;

(y) Licenses and Permits. The Company and its significant subsidiaries possess all licenses, permits, certificates, consents, orders, approvals and other authorizations from, and have made all declarations and filings with, all federal, state, local or foreign and other governmental authorities, the American Bureau of Shipping and all courts and other tribunals, including without limitation under any applicable Environmental Laws (as defined below), currently required or necessary to own or lease, as the case may be, and to operate their properties and to carry on their business as now and proposed to be conducted as set forth in the Time of Sale Information and the Offering Memorandum (“Permits”), except where the failure to obtain such Permits would not individually or in the aggregate have a Material Adverse Effect; the Company and its subsidiaries have fulfilled and performed all of their obligations with respect to such Permits and no event has occurred which allows, or after notice or lapse of time would allow, revocation or termination thereof or results in any other material impairment of the rights of the holder of any such Permit, except where the failure to perform such obligations or the occurrence of such event would not have a Material Adverse Effect; and neither the Company nor any of its subsidiaries has received any notice of any proceeding relating to revocation or modification of any such Permit, except as described in the Time of Sale Information and the Offering Memorandum and except where such revocation or modification would not individually or in the aggregate have a Material Adverse Effect;

(z) No Labor Disputes. There is no strike, labor dispute, slowdown or work stoppage with the employees of the Company or any of its subsidiaries which is pending or, to the best of the Company’s knowledge, threatened; neither the Company nor any of its subsidiaries is a party to or has any obligation under any collective bargaining agreement or other labor union contract, white paper or side agreement with any labor union or organization; except as described in the Time of Sale Information and the Offering Memorandum, to the best of the Company’s knowledge, no collective bargaining organizing activities are taking place with respect to the Company or any of its subsidiaries; and the Company has a policy on drug and alcohol abuse applicable to each of the Vessels that meets or exceeds the standards contained in the current edition of the Oil Companies International Marine Forum Guidelines for the Control of Drugs and Alcohol Onboard Ship;

(aa) Compliance With Environmental Laws. Except as described in the Time of Sale Information and the Offering Memorandum or as would not individually or in the aggregate have a Material Adverse Effect (A) the Company and its subsidiaries are in compliance with and not subject to any known liability under applicable Environmental Laws (as defined below), (B) the Company and its subsidiaries have made all filings and provided all notices required under any applicable Environmental Laws, and have, and are in compliance with, all Permits required under any applicable Environmental Laws and each of them is in full force and effect, (C) there is no civil, criminal or administrative action, suit, demand, claim, hearing, notice of violation, investigation, proceeding, notice or demand letter or request for information pending or, to the best of the Company’s knowledge, threatened against the Company or its subsidiaries under any Environmental Law, (D) no lien, charge, encumbrance or restriction has been recorded under any Environmental Law with respect to any assets, facility or property owned, operated, leased or controlled by the Company or any of its subsidiaries, (E) neither the Company nor any of its subsidiaries has received notice that it has been identified as a potentially responsible party under the Comprehensive Environmental Response, Compensation and Liability Act of 1980, as amended (“CERCLA”), or any comparable state law, (F) no property or facility of the Company or any of its subsidiaries is (i) listed or, to the best of the Company’s knowledge, proposed for listing on the National Priorities List under CERCLA or (ii) listed in the Comprehensive Environmental Response, Compensation, Liability Information System List promulgated pursuant to CERCLA, or on any comparable list maintained by any state or local governmental authority and (G) each Vessel complies with the Federal Water Pollution Control Act, as amended, and has secured and carries on board a current U.S. Coast Guard Certificate of Financial Responsibility (Water Pollution);

For purposes of this Agreement, “Environmental Laws” means the common law, all federal treaties and all applicable federal, state and local laws or regulations, codes, orders, decrees, judgments or injunctions issued, promulgated, approved or entered thereunder, relating to pollution or protection of public or employee health and safety or the environment, including, without limitation, laws relating to (i) emissions, discharges, releases or threatened releases of hazardous materials into the environment (including, without limitation, ambient air, surface water, ground water, sea water, land surface or subsurface strata), (ii) the manufacture, processing, distribution, use, generation, treatment, storage, disposal, transport or handling of hazardous materials, and (iii) underground and above ground storage tanks and related piping, and emissions, discharges, releases or threatened releases therefrom;

(bb) Compliance With ERISA. Neither the Company nor any of its subsidiaries has any liability for any prohibited transaction or funding deficiency or any complete or partial withdrawal liability with respect to any pension, profit sharing, 401(k) plan or other plan which is subject to the Employee Retirement Income Security Act of 1974, as

amended (“ERISA”), to which the Company or any of its subsidiaries makes or ever has made a contribution and in which any employee of the Company or any of its subsidiaries is or has ever been a participant, except for such liabilities which would not individually or in the aggregate have a Material Adverse Effect; and with respect to such plans, the Company and each of its subsidiaries are in compliance in all material respects with all applicable provisions of ERISA;

(cc) Disclosure Controls. The Company maintains disclosure controls and procedures (as such term is defined in Rule 13a-15(e) of the Exchange Act) that comply with the requirements of the Exchange Act; such disclosure controls and procedures have been designed to ensure that material information relating to the Company and its subsidiaries is made known to the Company’s principal executive officer and principal financial executive officer by others within those entities; and such disclosure controls and procedures are effective;

(dd) Accounting Controls. Company maintains a system of internal control over financial reporting (as such term is defined in Rule 13a-15(f) of the Exchange Act) that complies with the requirements of the Exchange Act and has been designed by the Company’s principal executive officer and principal financial officer, or under their supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles; the Company’s internal control over financial reporting is effective, and the Company is not aware of any material weaknesses in its internal control over financial reporting.

(ee) Internal Controls. Since the date of the latest audited financial statements included or incorporated by reference in the Offering Memorandum and the Time of Sale Information, there has been no change in the Company’s internal control over financial reporting that has materially and adversely affected, or is reasonably likely to materially and adversely affect, the Company’s internal control over financial reporting.

(ff) Insurance. The Company and its subsidiaries carry insurance in such amounts and covering such risks as in their determination is adequate for the conduct of their business or the value of their properties.

(gg) No Unlawful Payments. Neither the Company nor any of its subsidiaries nor, to the best knowledge of the Company and each of the Guarantors, 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 Foreign Corrupt Practices Act of 1977; or (iv) made any other unlawful payment from corporate funds, whether as a bribe, rebate, payoff, influence payment, kickback or otherwise.

(hh) Compliance with Money Laundering Laws. The operations of the Company and its subsidiaries are and have been conducted at all times in compliance with applicable financial recordkeeping and reporting requirements of the Currency and Foreign Transactions Reporting Act of 1970, as amended, the 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 best knowledge of the Company, threatened.

(ii) Compliance with OFAC. None of the Company, any of its subsidiaries or, to the knowledge of the Company, any director, officer, agent, employee or affiliate of the Company or any of its subsidiaries is currently subject to any U.S. sanctions administered by the Office of Foreign Assets Control of the U.S. Department of the Treasury (“OFAC”); and the Company will not directly or indirectly use the proceeds of the offering of the Securities hereunder, or lend, contribute or otherwise make available such proceeds to any subsidiary, joint venture partner or other person or entity, for the purpose of financing the activities of any person currently subject to any U.S. sanctions administered by OFAC.

(jj) No Broker’s Fees. Neither the Company nor any of its subsidiaries is a party to any contract, agreement or understanding with any person (other than this Agreement) that would give rise to a valid claim against any of them or any Initial Purchaser for a brokerage commission, finder’s fee or like payment in connection with the offering and sale of the Securities.

(kk) Rule 144A Eligibility. When the Securities are issued and delivered pursuant to this Agreement, no Securities will be of the same class (within the meaning of Rule 144A under the Securities Act) as securities which are listed on a national securities exchange registered under Section 6 of the Exchange Act, or quoted in a U.S. automated inter-dealer quotation system; the Securities satisfy the requirements set forth in Rule 144A(d)(3) under the Securities Act.

(ll) No Integration. Neither the Company, the Guarantors, nor any affiliate (as defined in Rule 501(b) of Regulation D) of the Company or the Guarantors has directly, or through any agent, sold, offered for sale, solicited offers to buy or otherwise negotiated in respect of, any security (as defined in the Securities Act) which is or will be integrated with the sale of the Securities in a manner that would require the registration under the Securities Act of the offering contemplated by the Time of Sale Information and the Offering Memorandum.

(mm) No General Solicitation or Directed Selling Efforts. None of the Company, the Guarantors, any affiliate of the Company or any person acting on its or their behalf (other than the Initial Purchasers for whom we make no representation) has (i) offered or sold the Securities by means of any general solicitation or general advertising within the meaning of Rule 502(c) under the Securities Act or (ii) engaged in any directed selling efforts within the meaning of Regulation S under the Securities Act (“Regulation S”), and all such persons have complied with the offering restrictions requirement of Regulation S.

(nn) Securities Law Exemptions. Assuming the accuracy of the representations and warranties of the Initial Purchasers contained in Section 1(b) (including Annex C hereto) and their compliance with their agreements set forth therein, it is not necessary, in connection with the issuance and sale of the Securities to the Initial Purchasers and the offer, resale and delivery of the Securities by the Initial Purchasers in the manner contemplated by this Agreement, the Time of Sale Information and the Offering Memorandum, to register the Securities under the Securities Act or to qualify the Indenture under the Trust Indenture Act.

(oo) No Stabilization. Prior to the date hereof, neither the Company nor any of its affiliates has taken any action which is designed to or which has constituted or which might have been expected to cause or result in stabilization or manipulation of the price of any security of the Company in connection with the offering of the Securities.

(pp) Margin Rules. None of the transactions contemplated by this Agreement (including, without limitation, the use of the proceeds from the sale of the Securities) will violate or result in a violation of Section 7 of the Exchange Act, or any regulation promulgated thereunder, including, without limitation, Regulations T, U, and X of the Board of Governors of the Federal Reserve System.

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

(rr) Statistical and Market Data. To the best of the Company’s and the Guarantors’ knowledge, the statistical and market related data included in the Time of Sale Information and the Offering Memorandum are based on or derived from sources which are reliable and accurate in all material respects.

(ss) ▇▇▇▇▇▇▇▇-▇▇▇▇▇ Act. There is and has been no failure on the part of the Company or 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 (the “▇▇▇▇▇▇▇▇-▇▇▇▇▇ Act”), including Section 402 related to loans and Sections 302 and 906 related to certifications.

4. Further Agreements of the Company and the Guarantors. The Company and each of the Guarantors jointly and severally covenant and agree with each Initial Purchaser that:

(a) Delivery of Copies. The Company will deliver, without charge, to the Initial Purchasers as many copies of the Preliminary Offering Memorandum, any other Time of Sale Information, any Issuer Written Communication and the Offering Memorandum (including all amendments and supplements thereto) as the Representative may reasonably request.

(b) Offering Memorandum, Amendments or Supplements. Before finalizing the Offering Memorandum or making or distributing any amendment or supplement to any of the Time of Sale Information or the Offering Memorandum or, except as otherwise required by law with respect to any filing on Form 10-K, Form 10-Q or Form 8-K that is not related to the Securities, filing with the Commission any document that will be incorporated by reference therein, the Company will furnish to the Representative and counsel for the Initial Purchasers a copy of the proposed Offering Memorandum or such amendment or supplement or document to be incorporated by reference therein for review, and will not distribute any such proposed Offering Memorandum, amendment or supplement or file, except as required by law with respect to any filing on Form 10-K, Form 10-Q or Form 8-K that is not related to the Securities, any such document with the Commission to which the Representative reasonably object.

(c) Additional Written Communications. Before making, preparing, using, authorizing, approving or referring to any Issuer Written Communication, the Company will furnish to the Representative and counsel for the Initial Purchasers a copy of such written communication for review and will not make, prepare, use, authorize, approve or refer to any such written communication to which the Representative reasonably objects.

(d) Notice to the Representative. The Company will advise the Representative promptly, and, if requested by the Representative, confirm such advice in writing (including, without limitation, via email or similar means of electronic communication), (i) of the issuance by any governmental or regulatory authority of any order preventing or suspending the use of any of the Time of Sale Information, any Issuer Written Communication or the Offering Memorandum or the initiation or threatening of any proceeding for that purpose; (ii) of the occurrence of any event at any time prior to the completion of the initial offering of the Securities as a result of which any of the Time of Sale Information, any Issuer Written Communication or the Offering Memorandum as then amended or supplemented would include any untrue statement

of a material fact or omit to state a material fact necessary in order to make the statements therein, in light of the circumstances existing when such Time of Sale Information, Issuer Written Communication or the Offering Memorandum is delivered to a purchaser, not misleading; and (iii) of the receipt by the Company of any notice with respect to any suspension of the qualification of the Securities for offer and sale in any jurisdiction or the initiation or threatening of any proceeding for such purpose; and the Company will use its reasonable best efforts to prevent the issuance of any such order preventing or suspending the use of any of the Time of Sale Information, any Issuer Written Communication or the Offering Memorandum or suspending any such qualification of the Securities and, if any such order is issued, will use its reasonable best efforts to obtain as soon as possible the withdrawal thereof.

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

(f) Ongoing Compliance of the Offering Memorandum. If at any time prior to the completion of the initial offering of the Securities (i) any event shall occur or condition shall exist as a result of which the Offering Memorandum as then amended or supplemented would include any untrue statement of a material fact or omit to state any material fact necessary in order to make the statements therein, in the light of the circumstances existing when the Offering Memorandum is delivered to a purchaser, not misleading or (ii) it is necessary to amend or supplement the Offering Memorandum to comply with law, the Company will immediately notify the Initial Purchasers thereof and forthwith prepare and, subject to paragraph (b) above, furnish to the Initial Purchasers such amendments or supplements to the Offering Memorandum (or any document to be filed with the Commission and incorporated by reference therein) as may be necessary so that the statements in the Offering Memorandum as so amended or supplemented (including such document to be incorporated by reference therein) will not, in the light of the circumstances existing when the Offering Memorandum is delivered to a purchaser, be misleading or so that the Offering Memorandum will comply with law.

(g) Blue Sky Compliance. The Company will use its reasonable best efforts to qualify the Securities for offer and sale under the securities or Blue Sky laws of such jurisdictions as the Representative shall reasonably request and will use its reasonable best efforts to continue such qualifications in effect so long as required for the offering and resale of the Securities; provided that neither the Company nor any of the Guarantors shall be required to (i) qualify as a foreign corporation or other entity or as a dealer in securities in any such jurisdiction where it would not otherwise be required to so qualify, (ii) file any general consent to service of process in any such jurisdiction or (iii) subject itself to taxation in any such jurisdiction if it is not otherwise so subject.

(h) Clear Market. During the period from the date hereof through and including the date that is 90 days after the date hereof, the Company and each of the Guarantors will not, without the prior written consent of ▇.▇. ▇▇▇▇▇▇ Securities LLC, offer, sell, contract to sell or otherwise dispose of any debt securities issued or guaranteed by the Company or any of the Guarantors and having a tenor of more than one year; provided, however, for the avoidance of doubt that the language of this Section 4(h) is not applicable to loans.

(i) Use of Proceeds. The Company will apply the net proceeds from the sale of the Securities as described in each of the Time of Sale Information and the Offering Memorandum under the heading “Use of proceeds”.

(j) Supplying Information. While the Securities remain outstanding and are “restricted securities” within the meaning of Rule 144(a)(3) under the Securities Act, the Company and each of the Guarantors will, during any period in which the Company is not subject to and in compliance with Section 13 or 15(d) of the Exchange Act, furnish to holders of the Securities and prospective purchasers of the Securities designated by such holders, upon the request of such holders or such prospective purchasers, the information required to be delivered pursuant to Rule 144A(d)(4) under the Securities Act.

(k) DTC. The Company will assist the Initial Purchasers in arranging for the Securities to be eligible for clearance and settlement through The Depository Trust Company (“DTC”).

(l) No Resales by the Company. The Company will not, and will not permit any of its affiliates (as defined in Rule 144 under the Securities Act) to, resell any of the Securities that have been acquired by any of them, except for Securities purchased by the Company or any of its affiliates and resold in a transaction registered under the Securities Act.

(m) No Integration. Neither the Company nor any of its affiliates (as defined in Rule 501(b) of Regulation D) will, directly or through any agent, sell, offer for sale, solicit offers to buy or otherwise negotiate in respect of, any security (as defined in the Securities Act), that is or will be integrated with the sale of the Securities in a manner that would require registration of the Securities under the Securities Act.

(n) No General Solicitation or Directed Selling Efforts. None of the Company or any of its affiliates or any other person acting on its or their behalf (other than the Initial Purchasers, as to which no covenant is given) will (i) solicit offers for, or offer or sell, the Securities by means of any form of general solicitation or general advertising within the meaning of Rule 502(c) of Regulation D or in any manner involving a public offering within the meaning of Section 4(2) of the Securities Act or (ii) engage in any directed selling efforts within the meaning of Regulation S, and all such persons will comply with the offering restrictions requirement of Regulation S.

(o) No Stabilization. Neither the Company nor any of the Guarantors will take, directly or indirectly, any action designed to or that could reasonably be expected to cause or result in any stabilization or manipulation of the price of the Securities.

5. Certain Agreements of the Initial Purchasers. Each Initial Purchaser hereby represents and agrees that it has not and will not use, authorize use of, refer to, or participate in the planning for use of, any written communication that constitutes an offer to sell or the solicitation of an offer to buy the Securities other than (i) the Time of Sale Information and the Offering Memorandum, (ii) a written communication that contains no “issuer information” (as defined in Rule 433(h)(2) under the Securities Act) that was not included (including through incorporation by reference) in the Time of Sale Information or the Offering Memorandum, (iii) any written communication listed on Annex A or prepared pursuant to Section 4(c) above (including any electronic road show), (iv) any written communication prepared by such Initial Purchaser and approved by the Company in advance in writing or (v) any written communication relating to or that contains the terms of the Securities and/or other information that was included (including through incorporation by reference) in the Time of Sale Information or the Offering Memorandum.

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

(a) Representations and Warranties. The representations and warranties of the Company and the Guarantors contained herein shall be true and correct on the date hereof and on and as of the Closing Date; and the statements of the Company, the Guarantors and their respective officers made in any certificates delivered pursuant to this Agreement shall be true and correct on and as of the Closing Date.

(b) No Downgrade. Subsequent to the earlier of (A) the Time of Sale and (B) the execution and delivery of this Agreement, (i) no downgrading shall have occurred in

the rating accorded the Securities or any other debt securities or preferred stock issued or guaranteed by the Company or any of its subsidiaries by any “nationally recognized statistical rating organization”, as such term is defined under Section 3(a)(62) of the Exchange Act; and (ii) no such organization shall have publicly announced that it has under surveillance or review, or has changed its outlook with respect to, its rating of the Securities or of any other debt securities or preferred stock issued or guaranteed by the Company or any of its subsidiaries (other than an announcement with positive implications of a possible upgrading).

(c) No Material Adverse Change. No event or condition of a type described in Section 3(e) hereof shall have occurred or shall exist, which event or condition is not described in each of the Time of Sale Information (excluding any amendment or supplement thereto) and the Offering Memorandum (excluding any amendment or supplement thereto) the effect of which in the judgment of the Representative makes it impracticable or inadvisable to proceed with the offering, sale or delivery of the Securities on the terms and in the manner contemplated by this Agreement, the Time of Sale Information and the Offering Memorandum.

(d) Officer’s Certificate. The Representative shall have received on and as of the Closing Date a certificate of an executive officer of the Company and of each Guarantor who has specific knowledge of the Company’s or such Guarantor’s financial matters and is satisfactory to the Representative (i) confirming that such officer has carefully reviewed the Time of Sale Information and the Offering Memorandum and, to the best knowledge of such officer, the representations set forth in Sections 3(a) and 3(b) hereof are true and correct, (ii) confirming that the other representations and warranties of the Company and the Guarantors in this Agreement are true and correct and that the Company and the Guarantors have complied with all agreements and satisfied all conditions on their part to be performed or satisfied hereunder at or prior to the Closing Date and (iii) to the effect set forth in paragraphs (b) and (c) above.

(e) Comfort Letters. On the date of this Agreement and on the Closing Date, Ernst & Young LLP shall have furnished to the Representative, at the request of the Company, letters, dated the respective dates of delivery thereof and addressed to the Initial Purchasers, in form and substance reasonably satisfactory to the Representative, containing statements and information of the type customarily included in accountants’ “comfort letters” to underwriters with respect to the financial statements and certain financial information contained or incorporated by reference in each of the Time of Sale Information and the Offering Memorandum; provided that the letter delivered on the Closing Date shall use a “cut-off” date no more than three business days prior to the Closing Date.

(f) Opinion of Counsel for the Company. ▇▇▇▇▇▇▇▇ PC, counsel for the Company, shall have furnished to the Representative, at the request of the Company, their written opinion, dated the Closing Date and addressed to the Initial Purchasers, in form and substance reasonably satisfactory to the Representative, to the effect set forth in Annex D hereto.

(g) Opinion of Counsel for the Initial Purchasers. The Representative shall have received on and as of the Closing Date an opinion of ▇▇▇▇▇▇ & ▇▇▇▇▇▇ LLP, counsel for the Initial Purchasers, with respect to such matters as the Representative may reasonably request, and such counsel shall have received such documents and information as they may reasonably request to enable them to pass upon such matters.

(h) No Legal Impediment to Issuance. No action shall have been taken and no statute, rule, regulation or order shall have been enacted, adopted or issued by any federal, state or foreign governmental or regulatory authority that would, as of the Closing Date, prevent the issuance or sale of the Securities or the issuance of the Guarantees; and no injunction or order of any federal, state or foreign court shall have been issued that would, as of the Closing Date, prevent the issuance or sale of the Securities or the issuance of the Guarantees.

(i) Good Standing. The Representative shall have received on and as of the Closing Date satisfactory evidence of the good standing of the Company and its subsidiaries in their respective jurisdictions of organization and their good standing in such other jurisdictions as the Representative may reasonably request, in each case in writing or any standard form of telecommunication, from the appropriate governmental authorities of such jurisdictions.

(j) Registration Rights Agreement. The Initial Purchasers shall have received a counterpart of the Registration Rights Agreement that shall have been executed and delivered by a duly authorized officer of the Company and each of the Guarantors.

(k) DTC. The Securities shall be eligible for clearance and settlement through DTC.

(l) Additional Documents. On or prior to the Closing Date, the Company and the Guarantors shall have furnished to the Representative such further certificates and documents as the Representative may reasonably request.

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

7. Indemnification and Contribution.

(a) Indemnification of the Initial Purchasers. The Company and each of the Guarantors jointly and severally agree to indemnify and hold harmless each Initial

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

(b) Indemnification of the Company. Each Initial Purchaser agrees, severally and not jointly, to indemnify and hold harmless the Company, each of the Guarantors, each of their respective directors and officers and each person, if any, who controls the Company or any of the Guarantors within the meaning of Section 15 of the Securities Act or Section 20 of the Exchange Act to the same extent as the indemnity set forth in paragraph (a) above, but only with respect to any losses, claims, damages or liabilities that arise out of, or are based upon, any untrue statement or omission or alleged untrue statement or omission made in reliance upon and in conformity with any information relating to such Initial Purchaser furnished to the Company in writing by such Initial Purchaser through the Representative expressly for use in the Preliminary Offering Memorandum, any of the other Time of Sale Information, any Issuer Written Communication or the Offering Memorandum (or any amendment or supplement thereto), it being understood and agreed that the only such information consists of the following: the third paragraph, the fourth and fifth sentence of the fourteenth paragraph and the sixteenth paragraph under the caption “Plan of distribution” in the Offering Memorandum.

(c) Notice and Procedures. If any suit, action, proceeding (including any governmental or regulatory investigation), claim or demand shall be brought or asserted against any person in respect of which indemnification may be sought pursuant to either paragraph (a) or (b) above, such person (the “Indemnified Person”) shall promptly notify the person against whom such indemnification may be sought (the “Indemnifying Person”) in writing; provided that the failure to notify the Indemnifying Person shall not relieve it from any liability that it may have under paragraph (a) or (b) above except to the extent that it has been materially prejudiced (through the forfeiture of substantive rights or defenses) by such failure; and provided, further, that the failure to notify the Indemnifying

Person shall not relieve it from any liability that it may have to an Indemnified Person otherwise than under paragraph (a) or (b) above. If any such proceeding shall be brought or asserted against an Indemnified Person and it shall have notified the Indemnifying Person thereof, the Indemnifying Person shall retain counsel reasonably satisfactory to the Indemnified Person (who shall not, without the consent of the Indemnified Person, be counsel to the Indemnifying Person) to represent the Indemnified Person and any others entitled to indemnification pursuant to this Section 7 that the Indemnifying Person may designate in such proceeding and shall pay the fees and expenses of such proceeding and shall pay the fees and expenses of such counsel related to such proceeding, as incurred. In any such proceeding, any Indemnified Person shall have the right to retain its own counsel, but the fees and expenses of such counsel shall be at the expense of such Indemnified Person unless (i) the Indemnifying Person and the Indemnified Person shall have mutually agreed to the contrary; (ii) the Indemnifying Person has failed within a reasonable time to retain counsel reasonably satisfactory to the Indemnified Person; (iii) the Indemnified Person shall have reasonably concluded that there may be legal defenses available to it that are different from or in addition to those available to the Indemnifying Person; or (iv) the named parties in any such proceeding (including any impleaded parties) include both the Indemnifying Person and the Indemnified Person and representation of both parties by the same counsel would be inappropriate due to actual or potential differing interests between them. It is understood and agreed that the Indemnifying Person shall not, in connection with any proceeding or related proceeding in the same jurisdiction, be liable for the fees and expenses of more than one separate firm (in addition to any local counsel) for all Indemnified Persons, and that all such fees and expenses shall be reimbursed as they are incurred. Any such separate firm for any Initial Purchaser, its affiliates, directors and officers and any control persons of such Initial Purchaser shall be designated in writing by ▇.▇. ▇▇▇▇▇▇ Securities LLC and any such separate firm for the Company, the Guarantors, their respective directors and officers and any control persons of the Company and the Guarantors shall be designated in writing by the Company. The Indemnifying Person shall not be liable for any settlement of any proceeding effected without its written consent, but if settled with such consent or if there be a final judgment for the plaintiff, the Indemnifying Person agrees to indemnify each Indemnified Person from and against any loss or liability by reason of such settlement or judgment. No Indemnifying Person shall, without the written consent of the Indemnified Person, effect any settlement of any pending or threatened proceeding in respect of which any Indemnified Person is or could have been a party and indemnification could have been sought hereunder by such Indemnified Person, unless such settlement (x) includes an unconditional release of such Indemnified Person, in form and substance reasonably satisfactory to such Indemnified Person, from all liability on claims that are the subject matter of such proceeding and (y) does not include any statement as to or any admission of fault, culpability or a failure to act by or on behalf of any Indemnified Person.

(d) Contribution. If the indemnification provided for in paragraphs (a) or (b) above is unavailable to an Indemnified Person or insufficient in respect of any losses, claims, damages or liabilities referred to therein, then each Indemnifying Person under such paragraph, in lieu of indemnifying such Indemnified Person thereunder, shall contribute to the amount paid or payable by such Indemnified Person as a result of such losses, claims, damages or liabilities (i) in such proportion as is appropriate to reflect the relative benefits received by the Company and the Guarantors on the one hand and the Initial Purchasers on the other from the offering of the Securities or (ii) if the allocation provided by clause (i) is not permitted by applicable law, in such proportion as is appropriate to reflect not only the relative benefits referred to in clause (i) but also the relative fault of the Company and the Guarantors on the one hand and the Initial Purchasers on the other in connection with the statements or omissions that resulted in such losses, claims, damages or liabilities, as well as any other relevant equitable considerations. The relative benefits received by the Company and the Guarantors on the one hand and the Initial Purchasers on the other shall be deemed to be in the same respective proportions as the net proceeds (before deducting expenses) received by the Company from the sale of the Securities and the total discounts and commissions received by the Initial Purchasers in connection therewith, as provided in this Agreement, bear to the aggregate offering price of the Securities. The relative fault of the Company and the Guarantors on the one hand and the Initial Purchasers on the other shall be determined by reference to, among other things, whether the untrue or alleged untrue statement of a material fact or the omission or alleged omission to state a material fact relates to information supplied by the Company or any Guarantor or by the Initial Purchasers and the parties’ relative intent, knowledge, access to information and opportunity to correct or prevent such statement or omission.

(e) Limitation on Liability. The Company, the Guarantors and the Initial Purchasers agree that it would not be just and equitable if contribution pursuant to this Section 7 were determined by pro rata allocation (even if the Initial Purchasers were treated as one entity for such purpose) or by any other method of allocation that does not take account of the equitable considerations referred to in paragraph (d) above. The amount paid or payable by an Indemnified Person as a result of the losses, claims, damages and liabilities referred to in paragraph (d) above shall be deemed to include, subject to the limitations set forth above, any legal or other expenses incurred by such Indemnified Person in connection with any such action or claim. Notwithstanding the provisions of this Section 7, in no event shall an Initial Purchaser be required to contribute any amount in excess of the amount by which the total discounts and commissions received by such Initial Purchaser with respect to the offering of the Securities exceeds the amount of any damages that such Initial Purchaser has otherwise been required to pay by reason of such untrue or alleged untrue statement or omission or alleged omission. No person guilty of fraudulent misrepresentation (within the meaning of Section 11(f) of the Securities Act) shall be entitled to contribution from any person who was not guilty of such fraudulent misrepresentation. The Initial Purchasers’ obligations to contribute pursuant to this Section 7 are several in proportion to their respective purchase obligations hereunder and not joint.

(f) Non-Exclusive Remedies. The remedies provided for in this Section 7 are not exclusive and shall not limit any rights or remedies that may otherwise be available to any Indemnified Person at law or in equity.

8. Termination. This Agreement may be terminated in the sole discretion of the Representative, by notice to the Company, if after the execution and delivery of this Agreement and on or prior to the Closing Date (i) trading generally shall have been suspended or materially limited on the New York Stock Exchange or the over-the-counter market; (ii) trading of any securities issued or guaranteed by the Company or any of the Guarantors shall have been suspended on any exchange or in any over-the-counter market; (iii) a general moratorium on commercial banking activities shall have been declared by federal or New York State authorities; or (iv) there shall have occurred any outbreak or escalation of hostilities or any change in financial markets or any calamity or crisis, either within or outside the United States, that, in the judgment of the Representative after consultation with the Company, is material and adverse and makes it impracticable or inadvisable to proceed with the offering, sale or delivery, of the Securities on the terms and in the manner contemplated by this Agreement, the Time of Sale Information and the Offering Memorandum.

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

(b) If, after giving effect to any arrangements for the purchase of the Securities of a defaulting Initial Purchaser or Initial Purchasers by the non-defaulting Initial

Purchasers and the Company as provided in paragraph (a) above, the aggregate principal amount of such Securities that remains unpurchased does not exceed one-tenth of the aggregate principal amount of all the Securities, then the Company shall have the right to require each non-defaulting Initial Purchaser to purchase the principal amount of Securities that such Initial Purchaser agreed to purchase hereunder plus such Initial Purchaser’s pro rata share (based on the principal amount of Securities that such Initial Purchaser agreed to purchase hereunder) of the Securities of such defaulting Initial Purchaser or Initial Purchasers for which such arrangements have not been made.

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

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

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

in connection with the approval of the Securities for book-entry transfer by DTC; and (ix) all expenses incurred by the Company in connection with any “road show” presentation to potential investors.

(b) If (i) this Agreement is terminated pursuant to Section 8(ii), (ii) the Company for any reason fails to tender the Securities for delivery to the Initial Purchasers or (iii) the Initial Purchasers decline to purchase the Securities for any reason permitted under this Agreement (other than pursuant to Section 8(i), (iii), or (iv)), the Company and each of the Guarantors jointly and severally agrees to reimburse the Initial Purchasers for all out-of-pocket costs and expenses (including the reasonable fees and expenses of their counsel) reasonably incurred by the Initial Purchasers in connection with this Agreement and the offering contemplated hereby.

11. Persons Entitled to Benefit of Agreement. This Agreement shall inure to the benefit of and be binding upon the parties hereto and their respective successors and any controlling persons referred to herein, and the affiliates, officers and directors of each Initial Purchaser referred to in Section 7 hereof. Nothing in this Agreement is intended or shall be construed to give any other person any legal or equitable right, remedy or claim under or in respect of this Agreement or any provision contained herein. No purchaser of Securities from any Initial Purchaser shall be deemed to be a successor merely by reason of such purchase.

12. Survival. The respective indemnities, rights of contribution, representations, warranties and agreements of the Company, the Guarantors and the Initial Purchasers contained in this Agreement or made by or on behalf of the Company, the Guarantors or the Initial Purchasers pursuant to this Agreement or any certificate delivered pursuant hereto shall survive the delivery of and payment for the Securities and shall remain in full force and effect, regardless of any termination or completion of this Agreement or any investigation made by or on behalf of the Company, the Guarantors or the Initial Purchasers.

13. Certain Defined Terms. For purposes of this Agreement, (a) except where otherwise expressly provided, the term “affiliate” has the meaning set forth in Rule 405 under the Securities Act; (b) the term “business day” means any day other than a day on which banks are permitted or required to be closed in New York City; (c) the term “Exchange Act” means the Securities Exchange Act of 1934, as amended; (d) the term “subsidiary” has the meaning set forth in Rule 405 under the Securities Act; (e) the term “significant subsidiary” has the meaning set forth in Rule 3-05 of Regulation S-X under the Securities Act; and (f) the term “written communication” has the meaning set forth in Rule 405 under the Securities Act.

14. Miscellaneous. (a) Authority of the Representative. Any action by the Initial Purchasers hereunder may be taken by ▇.▇. ▇▇▇▇▇▇ Securities LLC on behalf of the Initial Purchasers, and any such action taken by ▇.▇. ▇▇▇▇▇▇ Securities LLC shall be binding upon the Initial Purchasers.

(b) Notices. All notices and other communications hereunder shall be in writing and shall be deemed to have been duly given if mailed or transmitted and confirmed by any standard form of telecommunication. Notices to the Initial Purchasers shall be given to the Representative c/o ▇.▇. ▇▇▇▇▇▇ Securities LLC, ▇▇▇ ▇▇▇▇▇▇▇ ▇▇▇▇▇▇, ▇▇▇ ▇▇▇▇, ▇▇▇ ▇▇▇▇ ▇▇▇▇▇ (fax: (▇▇▇)-▇▇▇-▇▇▇▇); Attention: ▇▇▇▇ ▇▇▇▇▇. Notices to the Company and the Guarantors shall be given to them at ▇▇▇▇▇▇▇▇ Offshore Services, Inc., ▇▇▇ ▇▇▇▇▇▇▇▇▇ ▇▇▇▇▇▇▇▇▇, ▇▇▇▇▇ ▇▇▇, ▇▇▇▇▇▇▇▇▇, ▇▇▇▇▇▇▇▇▇ ▇▇▇▇▇ (fax: (▇▇▇) ▇▇▇-▇▇▇▇); Attention: ▇▇▇ ▇▇▇▇▇▇▇, General Counsel.

(c) Governing Law. This Agreement and any claim, controversy or dispute arising under or related to this Agreement shall be governed by and construed in accordance with the laws of the State of New York.

(d) Counterparts. This Agreement may be signed in counterparts (which may include counterparts delivered by any standard form of telecommunication), each of which shall be an original and all of which together shall constitute one and the same instrument.

(e) Amendments or Waivers. No amendment or waiver of any provision of this Agreement, nor any consent or approval to any departure therefrom, shall in any event be effective unless the same shall be in writing and signed by the parties hereto.

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

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


Very truly yours,

▇▇▇▇▇▇▇▇ OFFSHORE SERVICES, INC.

By:		/s/ ▇▇▇▇▇ ▇. ▇▇▇▇, ▇▇.
		▇▇▇▇▇ ▇. ▇▇▇▇, ▇▇.
		Executive Vice President and
		Chief Financial Officer

Guarantors:

Energy Services Puerto Rico, LLC
▇▇▇▇▇▇▇▇ Offshore Services, LLC
▇▇▇▇▇▇▇▇ Offshore Transportation, LLC
▇▇▇▇▇▇▇▇ Offshore Operators, LLC
HOS-IV, LLC
▇▇▇▇▇▇▇▇ Offshore Trinidad & Tobago, LLC
HOS Port, LLC

By:		/s/ ▇▇▇▇▇ ▇. ▇▇▇▇, ▇▇.
		▇▇▇▇▇ ▇. ▇▇▇▇, ▇▇.
		Executive Vice President and
		Chief Financial Officer

Purchase Agreement

Accepted: March 2, 2012


▇.▇. ▇▇▇▇▇▇ SECURITIES LLC

For itself and on behalf of the
several Initial Purchasers listed
in Schedule 1 hereto.

By		/s/ ▇▇▇ ▇. ▇▇▇▇▇▇▇
		Authorized Signatory

		▇▇▇ ▇. ▇▇▇▇▇▇▇
		Vice President

Purchase Agreement

Schedule 1


Initial Purchaser	Principal Amount

▇.▇. ▇▇▇▇▇▇ Securities LLC	$	113,325,000
Barclays Capital Inc.	$	113,325,000
▇▇▇▇▇ Fargo Securities, LLC	$	61,815,000
Comerica Securities, Inc.	$	30,900,000
DNB Markets, Inc.	$	30,900,000
Capital One Southcoast, Inc.	$	24,735,000


Total	$	375,000,000

Schedule 2

List of Guarantors

Energy Services Puerto Rico, LLC, a Delaware limited liability company

▇▇▇▇▇▇▇▇ Offshore Services, LLC, a Delaware limited liability company

▇▇▇▇▇▇▇▇ Offshore Transportation, LLC, a Delaware limited liability company

▇▇▇▇▇▇▇▇ Offshore Operators, LLC, a Delaware limited liability company

HOS-IV, LLC, a Delaware limited liability company

▇▇▇▇▇▇▇▇ Offshore Trinidad & Tobago, LLC, a Delaware limited liability company

HOS Port, LLC, a Delaware limited liability company

ANNEX A

a. Additional Time of Sale Information

1. Term sheet containing the terms of the securities, substantially in the form of Annex B.

ANNEX B

▇▇▇▇▇▇▇▇ Offshore Services, Inc.

Pricing Term Sheet

Pricing Term Sheet, dated March 2, 2012

to Preliminary Offering Memorandum dated March 2, 2012

Strictly Confidential

This pricing term sheet is qualified in its entirety by reference to the Preliminary Offering Memorandum (the “Preliminary Offering Memorandum”). The information in this pricing term sheet supplements the Preliminary Offering Memorandum and updates and supersedes the information in the Preliminary Offering Memorandum to the extent it is inconsistent with the information in the Preliminary Offering Memorandum. Terms used and not defined herein have the meanings assigned in the Preliminary Offering Memorandum.

The notes have not been registered under the Securities Act of 1933, as amended, or the securities laws of any other jurisdiction. The notes may not be offered or sold in the United States or to U.S. persons (as defined in Regulation S) except in transactions exempt from, or not subject to, the registration requirements of the Securities Act. Accordingly, the notes are being offered only to (1) “qualified institutional buyers” as defined in Rule 144A under the Securities Act and (2) outside the United States to non-U.S. persons in compliance with Regulation S under the Securities Act.


Issuer:		▇▇▇▇▇▇▇▇ Offshore Services, Inc.
Guarantors:		Energy Services Puerto Rico, LLC ▇▇▇▇▇▇▇▇ Offshore Services, LLC ▇▇▇▇▇▇▇▇ Offshore Transportation, LLC ▇▇▇▇▇▇▇▇ Offshore Operators, LLC HOS-IV, LLC ▇▇▇▇▇▇▇▇ Offshore Trinidad & Tobago, LLC HOS Port, LLC
Security description:		Senior Notes
Size:		$375,000,000
Gross proceeds:		$375,000,000
Form of Offering:		144A and Regulation S with registration rights as set forth in the Preliminary Offering Memorandum
Maturity:		April 1, 2020
Coupon:		5.875%
Issue price:		100.000%
Yield to maturity:		5.875%
Spread to Benchmark Treasury:		+432 bps
Benchmark Treasury:		UST 3.625% due February 15, 2020


Interest Payment Dates:	April 1 and October 1, commencing October 1, 2012 Up to 35% at 105.875% prior to April 1, 2015 Make-whole call @ T+50 bps prior to April 1, 2016, then on April 1 of:
Equity clawback: Optional redemption:
Equity clawback: Optional redemption:

	On or after:	Redemption Price:
	2016	102.938%
	2017	101.469%
	2018 and thereafter	100.000%

Change of control:	Putable at 101% of principal plus accrued and unpaid interest
Trade date:	▇▇▇▇▇ ▇, ▇▇▇▇
▇▇▇▇▇▇▇▇▇▇:	T+10; March 16, 2012
CUSIP/ISIN:	144A Notes: ▇▇▇▇▇▇▇▇▇ / US440543AJ50 Reg S Notes: ▇▇▇▇▇▇▇▇▇ / ▇▇▇▇▇▇▇▇▇▇▇▇
▇▇▇▇▇▇▇▇▇▇▇▇▇/▇▇▇▇▇▇▇▇:	2,000 x 1,000
Ratings*:	Moody’s: Ba3 S&P: BB-
Bookrunners:	▇.▇. ▇▇▇▇▇▇
	Barclays Capital
	▇▇▇▇▇ Fargo Securities
Co-Managers:	Capital One Southcoast
	Comerica Securities
	DNB Markets

Additional Information

Use of Proceeds

The following disclosure under “Use of proceeds” on page 24 and each other location where it appears in the preliminary offering memorandum is amended to read as follows:

We estimate that we will receive net proceeds of approximately $367.4 million from this offering, after deducting initial purchaser discounts and fees and expenses of the offering.

Capitalization

The following numbers in the As adjusted column under “Capitalization” on page 25 and each other location where they appear in the preliminary offering memorandum are amended to read as follows:


	As of December 31, 2011 As adjusted (in thousands)
Cash and cash equivalents	$	420,474
5.875% senior notes due 2020	$	375,000
Total debt	$	845,863
Total capitalization	$	1,914,866

This material is confidential and is for your information only and is not intended to be used by anyone other than you. This information does not purport to be a complete description of these notes or the offering. Please refer to the Preliminary Offering Memorandum for a complete description.

This communication is being distributed in the United States solely to Qualified Institutional Buyers, as defined in Rule 144A under the Securities Act of 1933, as amended, and outside the United States solely to Non-U.S. persons as defined under Regulation S.

This communication does not constitute an offer to sell or the solicitation of an offer to buy any securities in any jurisdiction to any person to whom it is unlawful to make such offer or solicitation in such jurisdiction.

*	A securities rating is not a recommendation to buy, sell or hold securities and may be subject to revision or withdrawal at any time.

Any disclaimer or other notice that may appear below is not applicable to this communication and should be disregarded. Such disclaimer or notice was automatically generated as a result of this communication being sent by Bloomberg or another email system.

ANNEX C

Restrictions on Offers and Sales Outside the United States

In connection with offers and sales of Securities outside the United States:

(a) Each Initial Purchaser acknowledges that the Securities have not been registered under the Securities Act and may not be offered or sold within the United States or to, or for the account or benefit of, U.S. persons except pursuant to an exemption from, or in transactions not subject to, the registration requirements of the Securities Act.

(b) Each Initial Purchaser, severally and not jointly, represents, warrants and agrees that:

(i) Such Initial Purchaser has offered and sold the Securities, and will offer and sell the Securities, (A) as part of their distribution at any time and (B) otherwise until 40 days after the later of the commencement of the offering of the Securities and the Closing Date, only in accordance with Regulation S under the Securities Act (“Regulation S”) or Rule 144A or any other available exemption from registration under the Securities Act.

(ii) None of such Initial Purchaser or any of its affiliates or any other person acting on its or their behalf has engaged or will engage in any directed selling efforts with respect to the Securities, and all such persons have complied and will comply with the offering restrictions requirement of Regulation S.

(iii) At or prior to the confirmation of sale of any Securities sold in reliance on Regulation S, such Initial Purchaser will have sent to each distributor, dealer or other person receiving a selling concession, fee or other remuneration that purchase Securities from it during the distribution compliance period a confirmation or notice to substantially the following effect:

“The Securities covered hereby have not been registered under the U.S. Securities Act of 1933, as amended (the “Securities Act”), and may not be offered or sold within the United States or to, or for the account or benefit of, U.S. persons (i) as part of their distribution at any time or (ii) otherwise until 40 days after the later of the commencement of the offering of the Securities and the date of original issuance of the Securities, except in accordance with Regulation S or Rule 144A or any other available exemption from registration under the Securities Act. Terms used above have the meanings given to them by Regulation S.”

(iv) Such Initial Purchaser has not and will not enter into any contractual arrangement with any distributor with respect to the distribution of the Securities, except with its affiliates or with the prior written consent of the Company.

Purchase Agreement

Terms used in paragraph (a) and this paragraph (b) and not otherwise defined in this Agreement have the meanings given to them by Regulation S.

(i) it has only communicated or caused to be communicated and will only communicate or cause to be communicated any invitation or inducement to engage in investment activity (within the meaning of Section 21 of the United Kingdom Financial Services and Markets ▇▇▇ ▇▇▇▇ (the “FSMA”)) received by it in connection with the issue or sale of any Securities in circumstances in which Section 21(1) of the FSMA does not apply to the Company or the Guarantors; and

(ii) it has complied and will comply with all applicable provisions of the FSMA with respect to anything done by it in relation to the Securities in, from or otherwise involving the United Kingdom.

(d) Each Initial Purchaser acknowledges that no action has been or will be taken by the Company that would permit a public offering of the Securities, or possession or distribution of any of the Time of Sale Information, the Offering Memorandum, any Issuer Written Communication or any other offering or publicity material relating to the Securities, in any country or jurisdiction where action for that purpose is required.

ANNEX D

Form of Opinion of Counsel for the Company and the Guarantors

(i) each of the Company and the Guarantors has been duly incorporated as a corporation or formed as a limited liability company and is validly existing as a corporation or limited liability company in good standing under the laws of the State of Delaware, with corporate or limited liability company power and authority to own its properties and conduct its business as described in the Time of Sale Information;

(ii) the Company has an authorized capitalization as set forth in the Time of Sale Information, and all of the issued shares of capital stock of the Company have been duly authorized and validly issued and are fully paid and nonassessable;

(iii) each of the Company and the Guarantors has been duly qualified as a foreign corporation or limited liability company for the transaction of business and is in good standing under the laws of each other jurisdiction in which it owns or leases properties or conducts any business so as to require such qualification, except where the failure to be so qualified or in good standing in any such jurisdiction would not have a Material Adverse Effect;

(iv) each Subsidiary (as defined in the Indenture) of the Company (other than the Guarantors) has been duly formed as a limited liability company or other foreign entity and is validly existing as a limited liability company or other foreign entity in good standing under the laws of its jurisdiction of formation except to the extent that the failure to be so formed, validly existing or in good standing would not have a Material Adverse Effect on the Company; and all of the issued and outstanding membership or other equity interests of each such Subsidiary of the Company (including the Guarantors) have been duly authorized and validly issued, are fully paid and nonassessable, and are owned directly or indirectly by the Company, free and clear of all liens, encumbrances, equities or claims except to the extent as will not have a Material Adverse Effect on the Company;

(v) to such counsel’s knowledge and other than as set forth in the Time of Sale Information, there are no legal or governmental proceedings pending to which the Company, the Guarantors, or any of their subsidiaries is a party or of which any property of the Company or any of its subsidiaries is the subject which, if determined adversely to the Company or any of its subsidiaries, would individually or in the aggregate have a Material Adverse Effect; and, to such counsel’s knowledge, no such proceedings are threatened or contemplated by governmental authorities or threatened by others;

(vi) this Agreement has been duly authorized, executed and delivered by each of the Company and the Guarantors;

(vii) the Registration Rights Agreement has been duly authorized, executed and delivered by the Company and the Guarantors and, assuming the due authorization, execution and delivery of the other parties thereto, constitutes a valid and legally binding obligation of the Company and the Guarantors, enforceable against the Company and the Guarantors, in accordance with its terms, except as limited by bankruptcy, insolvency, fraudulent conveyance, fraudulent transfer, moratorium, reorganization and other similar laws of general application affecting the rights and remedies of creditors and by general principles of equity (regardless of whether enforceability is considered in a proceeding in equity or at law) and, as to rights of indemnification, to principles of public policy or federal or state securities laws relating thereto;

(viii) the Securities have been duly authorized, executed, issued and delivered by each of the Company and constitute valid and legally binding obligations of the Company entitled to the benefits provided by the Indenture, enforceable against the Company in accordance with their terms, except as limited by bankruptcy, insolvency, fraudulent conveyance, fraudulent transfer, moratorium, reorganization and other similar laws of general application affecting the rights and remedies of creditors and by general principles of equity (regardless of whether enforceability is considered in a proceeding in equity or at law);

(ix) The Guarantees have been duly authorized, executed, issued and delivered by the Guarantors and constitute valid and legally binding obligations of the Guarantors entitled to the benefits provided by the Indenture, enforceable against the Guarantors in accordance with their terms, except as limited by bankruptcy, insolvency, fraudulent conveyance, fraudulent transfer, moratorium, reorganization and other similar laws of general application affecting the rights and remedies of creditors and by general principles of equity (regardless of whether enforceability is considered in a proceeding in equity or at law);

(x) the Indenture has been duly authorized, executed and delivered by the Company and the Guarantors, and constitutes a valid and legally binding instrument of the Company and the Guarantors, enforceable against the Company and the Guarantors in accordance with its terms, except as limited by bankruptcy, insolvency, fraudulent conveyance, fraudulent transfer, moratorium, reorganization and other similar laws of general application affecting the rights and remedies of creditors and by general principles of equity (regardless of whether enforceability is considered in a proceeding in equity or at law);

(xi) the Exchange Securities have been duly authorized for issuance by the Company, and, when executed, authenticated and issued by the Company in accordance with the terms of the Indenture, the Registration Rights Agreement and the Exchange Offer, will be entitled to the benefits of the Indenture and will be valid and legally binding obligations, enforceable against the Company in accordance with their terms, except as limited by bankruptcy, insolvency, fraudulent conveyance, fraudulent transfer, moratorium, reorganization and other similar laws of general application affecting the rights and remedies of creditors and by general principles of equity (regardless of whether enforceability is considered in a proceeding in equity or at law);

(xii) the guarantees related to the Exchange Securities have been duly authorized for issuance by the Guarantors and, when executed, authenticated and issued by the Guarantors in

accordance with the terms of the Indenture, the Registration Rights Agreement and the Exchange Offer, will be entitled to the benefits of the Indenture and will be valid and legally binding obligations, enforceable against the Guarantors in accordance with their terms, except as limited by bankruptcy, insolvency, fraudulent conveyance, fraudulent transfer, moratorium, reorganization and other similar laws of general application aff3ecting the rights and remedies of creditors and by general principles of equity (regardless of whether enforceability is considered in a proceeding in equity or at law);

(xiii) no consent, approval, authorization, order, registration or qualification of or with any such court or governmental agency or body is required for the issue and sale of the Securities or the Exchange Securities or the consummation by the Company and the Guarantors of the transactions contemplated by this Agreement, the Indenture or the Registration Rights Agreement, except (a) the Exchange Registration Statement (as defined in the Registration Rights Agreement) or, if applicable, the Shelf Registration Statement (as defined in the Registration Rights Agreement) required to be filed under the Registration Rights Agreement and become effective with the Securities and Exchange Commission and (b) such as have been obtained and such consents, approvals, authorizations, registrations or qualifications as may be required under state securities or Blue Sky laws in connection with the purchase and distribution of the Securities by the Initial Purchasers and except where failure to obtain such consent, approval, authorization, order, registration or qualification would not have a Material Adverse Effect; provided, however, that notwithstanding anything to the contrary, such counsel need express no opinion in this subparagraph (xiii) as to compliance with the registration provisions of the Securities Act in relation to the Securities;

(xiv) no registration of the Securities under the Securities Act, and no qualification of an indenture under the Trust Indenture Act with respect thereto, is required for the issuance and sale of the Securities to the Initial Purchasers and the offer, resale and delivery of the Securities by the Initial Purchasers in the manner contemplated by this Agreement and the Time of Sale Information;

(xv) none of the Company, the Guarantors or any of their subsidiaries is and, after giving effect to the offering and sale of the Securities and the application of the proceeds thereof as described in the Time of Sale Information, will be required to register as an “investment company” as defined in the Investment Company Act;

(xvi) when the Securities are issued and delivered pursuant to this Agreement, none of the Securities will be of the same class (within the meaning of Rule 144A under the Securities Act) as securities of the Company that are listed on a national securities exchange registered under Section 6 of the Exchange Act or that are quoted in a United States automated inter-dealer quotation system;

(xvii) the statements set forth in the Time of Sale Information and the Offering Memorandum under the caption “Description of notes”, insofar as they purport to constitute a summary of the terms of the Securities, under the caption “United States federal income and estate tax considerations” insofar as they purport to describe the provisions of the laws and

documents referred to therein and under the caption “Plan of distribution”, insofar as they purport to describe the provisions of this Agreement, fairly present, in all material respects;, the information called for with respect to such legal matters, documents or proceedings;

(xviii) the issue and sale of the Securities and the compliance by the Company and the Guarantors with all of the provisions of the Securities, the Indenture, the Registration Rights Agreement and this Agreement with respect to the Securities and the consummation of the transactions contemplated herein and therein will not (a) 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 or other agreement or instrument which is attached or incorporated by reference as an exhibit to the Company’s annual report on Form 10-K for the year ended December 31, 2011 (the “Annual Report”), or any Item 1.01 of any Form 8-K filed subsequent to the Annual Report, (b) result in any violation of the provisions of the Certificate of Incorporation or Bylaws of the Company or the certificate of formation or limited liability company agreement of any Guarantor, or (c) result in a violation of, to the knowledge of such counsel, any order of any court or governmental agency or body having jurisdiction over the Company, the Guarantors or any of their subsidiaries or any of their properties (except that such counsel need express no opinion with respect to compliance with the anti-fraud or similar provisions of any law, rule or regulation), except in the case of clauses (a) and (c) for such breaches or violations that could not reasonably be expected to have a Material Adverse Effect or that could violate public policy relating thereto;

Because the primary purpose of such counsel’s engagement was not to establish factual matters and many of the statements in the Time of Sale Information, the Offering Memorandum and any amendment or supplement thereto, are wholly or partially nonlegal in character, such counsel may state that such counsel has not independently verified and is not passing upon and does not assume any responsibility for the accuracy, completeness or fairness of the statements contained therein (except for the applicable descriptions referenced in paragraphs (i), (ii), (v), (xiii) and xvii)). Such counsel shall also state that they have participated in conferences with representatives of the Company and with representatives of its independent accountants and representatives of the Initial Purchaser and their counsel, at which conferences the contents of the Time of Sale Information and the Offering Memorandum and any amendment and supplement thereto and related matters were discussed. On the basis of the foregoing, such counsel hereby confirms that nothing has come to the attention of such counsel to cause such counsel to believe (except with respect to the financial statements and related schedules and the financial data derived therefrom, including the notes and schedules thereto and the auditor’s report thereon or any other financial or accounting data included in, or excluded from, the Time of Sale Information or the Offering Memorandum as to which such counsel need express no belief) that the Time of Sale Information, at the Time of Sale (which such counsel may assume to be the date of this Agreement), contained any untrue statement of a material fact or omitted to state a material fact or necessary to make the statements therein, in the light of the circumstances under which they were made, not misleading, or that the Offering

Memorandum or any amendment or supplement thereto, as of its date and the Closing Date, contained or contains any untrue statement of a material fact or omits to state a material fact necessary to make the statements therein, in the light of the circumstances under which they were made, not misleading (other than, in each case, the financial statements and other financial information contained or incorporated by reference therein, as to which such counsel need express no belief).

In rendering such opinion, such counsel may rely as to matters of fact on certificates of responsible officers of the Company and the Guarantors and public officials that are furnished to the Initial Purchasers.

The opinion of ▇▇▇▇▇▇▇▇ PC described above shall be rendered to the Initial Purchasers at the request of the Company and shall so state therein.

HORNBECK OFFSHORE SERVICES, INC. Purchase Agreement March 2, 2012

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