Form of Underwriting Agreement

Exhibit 1.1

Cal Dive International, Inc.

Common Stock

UNDERWRITING AGREEMENT

dated      , 2006

Banc of America Securities LLC
J.P. Morgan Securities Inc.

Underwriting Agreement

                    , 2006

BANC OF AMERICA SECURITIES LLC
J.P. MORGAN SECURITIES INC.
    As Representatives of the several Underwriters
c/o BANC OF AMERICA SECURITIES LLC
9 West 57^th Street
New York, NY 10019

Ladies and Gentlemen:

     Introductory. Cal Dive International, Inc., a Delaware corporation (the “Company”), proposes to issue and sell to the several underwriters named in Schedule A (the “Underwriters”) an aggregate of [___] shares (the “Firm Shares”) of its Common Stock, par value $[0.01] per share (the “Common Stock”). In addition, Helix Energy Solutions Group, Inc., a Minnesota corporation and the parent corporation of the Company (the “Selling Stockholder”) has granted to the Underwriters an option to purchase up to an additional [___] shares (the “Optional Shares”) of Common Stock, as provided in Section 2. The Firm Shares and, if and to the extent such option is exercised, the Optional Shares are collectively called the “Shares”. Banc of America Securities LLC (“BAS”) and J.P. Morgan Securities Inc. have agreed to act as representatives of the several Underwriters (in such capacity, the “Representatives”) in connection with the offering and sale of the Shares.

     To the extent there are no additional Underwriters listed on Schedule A other than you, the terms Representatives and Underwriters as used herein shall mean you, as Underwriters. The terms Representatives and Underwriters shall mean either the singular or plural as the context requires.

     The Company and the Underwriters agree that up to 5% of the Firm Shares to be purchased by the Underwriters (the “Directed Shares”) shall be reserved for sale by the Underwriters to certain eligible directors, officers and employees of the Company and persons having business relationships with the Company (collectively, the “DSP Participants”), as part of the distribution of the Shares by the Underwriters (the “Directed Share Program”) subject to the terms of this Agreement, the applicable rules, regulations and interpretations of the NASD, Inc. (the “NASD”) and all other applicable laws, rule and regulations. J.P. Morgan Securities Inc. (the “DSP Underwriter”) has been selected to process the sales to the DSP Participants under the Directed Share Program. To the extent that such Directed Shares are not orally confirmed for purchase by the DSP Participants by [7:30 A.M.] New York City time on the first business day after the date of this Agreement, such Directed Shares may be offered to the public as set forth in the Prospectus (as defined below).

     The Company and the Selling Stockholder hereby confirm their respective agreements with the Underwriters as follows:

     Section 1. Representations and Warranties.

     A. The Company hereby represents, warrants and covenants to each Underwriter as follows:

     (a) The Company has prepared and filed with the Securities and Exchange Commission (the “Commission”) a registration statement on Form S-1 (File No. 333-134609), which contains a form of prospectus to be used in connection with the public offering and sale of the Shares. Such registration statement, as amended, including the financial statements, exhibits and schedules thereto, in the form in which it was declared effective by the Commission under the Securities Act of 1933 and the rules and regulations promulgated thereunder (collectively, the “Securities Act”), including any required information deemed to be a part thereof at the time of effectiveness pursuant to Rule 430A under the Securities Act, is called the “Registration Statement”. Any registration statement filed by the Company pursuant to Rule 462(b) under the Securities Act is called the “Rule 462(b) Registration Statement”, and from and after the date and time of filing of the Rule 462(b) Registration Statement the term “Registration Statement” shall include the Rule 462(b) Registration Statement. Any preliminary prospectus included in the Registration Statement is hereinafter called a “preliminary prospectus.” The term “Prospectus” shall mean the final prospectus relating to the Shares that is first filed pursuant to Rule 424(b) after the effective date of the Registration Statement (the “Effective Date”) or, if no filing pursuant to Rule 424(b) is required, shall mean the form of final prospectus relating to the Shares included in the Registration Statement at the Effective Date. All references in this Agreement to the Registration Statement, the Rule 462(b) Registration Statement, a preliminary prospectus, the Prospectus, or any amendments or supplements to any of the foregoing, shall include any copy thereof filed with the Commission pursuant to its Electronic Data Gathering, Analysis and Retrieval System (“EDGAR”).

     (b) Compliance with Registration Requirements. The Registration Statement has been declared effective by the Commission under the Securities Act. The Company has complied to the Commission’s satisfaction with all requests of the Commission for additional or supplemental information. No stop order suspending the effectiveness of the Registration Statement is in effect and no proceedings for such purpose or pursuant to Section 8A of the Securities Act against the Company or related to the offering have been instituted or are pending or, to the best knowledge of the Company, are contemplated or threatened by the Commission.

     The preliminary prospectus dated November  , 2006 and the Prospectus when filed complied in all material respects with the Securities Act and the rules thereunder and, if filed by electronic transmission pursuant to EDGAR (except as may be permitted by Regulation S-T under the Securities Act), was identical to the copy thereof delivered to the Underwriters for use in connection with the offer and sale of the Shares. Each of the Registration Statement and any post-effective amendment thereto, at the time it became effective and at the date hereof, complied and will comply in all material respects with the Securities Act 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 not misleading. The Prospectus (including any Prospectus wrapper), as amended or supplemented, as of its date, at

the date hereof, at the time of any filing pursuant to Rule 424(b), at the Closing Date (as defined herein) and at any Subsequent Closing Date (as defined herein), did not and 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. The representations and warranties set forth in the two immediately preceding sentences do not apply to statements in or omissions from the Registration Statement or any post-effective amendment thereto, or the Prospectus, or any amendments or supplements thereto, made in reliance upon and in conformity with information relating to any Underwriter furnished to the Company in writing by the Representatives expressly for use therein, it being understood and agreed that the only such information furnished by the Representatives consists of the information described as such in Section 8(b) hereof. There is no contract or other document required to be described in the Prospectus or to be filed as exhibits to the Registration Statement that has not been described or filed as required.

     (c) Disclosure Package. The term “Disclosure Package” shall mean (A) the preliminary prospectus, as amended or supplemented immediately prior to the Applicable Time (as defined below), (B) any Issuer Free Writing Prospectuses (as defined below) identified in Schedule B hereto, (C) any other free writing prospectus that the parties hereto shall hereafter expressly agree in writing to treat as part of the Disclosure Package and (D) Schedule C hereto, which indicates the price at which the Shares will be sold to the public and other information relating to the offering of the Shares. The term “Issuer Free Writing Prospectus” shall mean any “issuer free writing prospectus,” as defined in Rule 433 of the Securities Act relating to the Shares that (A) is required to be filed with the Commission by the Company, (B) is a “road show for an offering that is a written communication” within the meaning of Rule 433(d)(8)(i) whether or not required to be filed with the Commission or (C) is exempt from filing pursuant to Rule 433(d)(5)(i) because it contains a description of the Securities or of the offering that does not reflect the final terms, in each case in the form filed or required to be filed with the Commission or, if not required to be filed, in the form required to be retained in the Company’s records pursuant to Rule 433(g). The term “Applicable Time” means 7:00 P.M. on the date of this Agreement, which is the time when sales of the Shares are first made. At the Applicable Time, the Closing Date and on any Subsequent Closing Date, the Disclosure Package will not contain 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. The preceding sentence does not apply to statements in or omissions from the Disclosure Package based upon and in conformity with written information furnished to the Company by any Underwriter through the Representatives specifically for use therein, it being understood and agreed that the only such information furnished by or on behalf of any Underwriter consists of the information described as such in Section 8(b) hereof. No statement of material fact included in the Prospectus will be omitted from the Disclosure Package available at the Applicable Time, and no statement of material fact included in the Disclosure Package available at the Applicable Time that is required to be included in the Prospectus will be omitted therefrom.

     (d) Company Not Ineligible Issuer. (i) At the time of filing the Registration Statement, any Rule 462(b) Registration Statement and any post-effective amendments thereto and (ii) as of the date of the execution and delivery of this Agreement (with such date being used as the determination date for purposes of this clause (ii)), the Company was not and is not an Ineligible Issuer (as defined in Rule 405 of the Securities Act), without taking account of any determination by the Commission pursuant to Rule 405 of the Securities Act that it is not necessary that the Company be considered an Ineligible Issuer.

     (e) Issuer Free Writing Prospectuses. Each Issuer Free Writing Prospectus, as of its issue date and at all subsequent times through the completion of the public offer and sale of the Shares or until any earlier date that the Company notified or notifies the Representatives as described in Section 3(d), (i) did not, does not and will not include any information that conflicts with the information contained in the Registration Statement or the Prospectus, including any preliminary prospectus deemed to be a part thereof that has not been superseded or modified, and (ii) when taken together with the preliminary prospectus preceding or accompanying such Issuer Free Writing Prospectus, did not, does not and 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. The preceding sentence does not apply to statements in or omissions from the Issuer Free Writing Prospectus based upon and in conformity with written information furnished to the Company by any Underwriter through the Representatives specifically for use therein, it being understood and agreed that the only such information furnished by or on behalf of any Underwriter consists of the information described as such in Section 8(b) hereof.

     (f) Bona Fide Electronic Road Show. The Company has made available a “bona fide electronic road show”, as defined in Rule 433 in compliance with Rule 433(d)(8)(ii), such that no filing of any “road show” (as defined in Rule 433(h)) is required in connection with the offering of the Shares.

     (g) Accuracy of Statements in Prospectus. The statements in each of the preliminary prospectus and the Prospectus under the headings “Description of Capital Stock” and “Material U.S. Federal Tax Considerations For Non-U.S. Holders of Common Stock” insofar as such statements summarize legal matters, agreements, documents or proceedings discussed therein, are accurate and fair summaries of such legal matters, agreements, documents or proceedings.

     (h) Distribution of Offering Material By the Company. The Company has not distributed and will not distribute, prior to the later of the last Subsequent Closing Date (as defined below) and the completion of the Underwriters’ distribution of the Shares, any offering material in connection with the offering and sale of the Shares other than a preliminary prospectus, the Prospectus, any Issuer Free Writing Prospectus, the Registration Statement or other materials, if any, permitted by the Securities Act and the rules and regulations thereunder; provided that no such other materials shall be distributed without the prior consent of the Representatives.

     (i) The Underwriting Agreement. This Agreement has been duly authorized, executed and delivered by, and is a valid and binding agreement of, the Company.

     (j) Authorization of the Shares. The Shares to be purchased by the Underwriters from the Company have been duly authorized for issuance and sale pursuant to this Agreement and, when issued and delivered by the Company to the Underwriters pursuant to this Agreement on the Closing Date or any Subsequent Closing Date, will be validly issued, fully paid and nonassessable.

     (k) No Transfer Taxes. There are no transfer taxes or other similar fees or charges under federal law or the laws of any state, or any political subdivision thereof, required to be paid in connection with the execution and delivery of this Agreement or the issuance by the Company or sale by the Company of the Shares.

     (l) No Applicable Registration or Other Similar Rights. Except as described in the Disclosure Package and the Prospectus, there are no persons with registration or other similar rights to have any equity or debt securities registered for sale under the Registration Statement or included in the offering contemplated by this Agreement, except for such rights as have been duly waived or the sale of the Optional Shares to be sold by the Selling Stockholder hereunder.

     (m) No Material Adverse Change. Except as otherwise disclosed in the Disclosure Package and the Prospectus, subsequent to the respective dates as of which information is given in the Disclosure Package and the Prospectus: (i) there has been no material adverse change, or any development that could reasonably be expected to result in a material adverse change, in the condition, financial or otherwise, or in the earnings, business, properties, operations or prospects, whether or not arising from transactions in the ordinary course of business, of the Company and its subsidiaries, considered as one entity (any such change is called a “Material Adverse Change”); (ii) the Company and its subsidiaries, considered as one entity, have not incurred any material liability or obligation, indirect, direct or contingent, nor entered into any material transaction or agreement; and (iii) there has been no dividend or distribution of any kind declared, paid or made by the Company or, except for dividends paid to the Company or other subsidiaries, any of its subsidiaries on any class of capital stock or repurchase or redemption by the Company or any of its subsidiaries of any class of capital stock.

     (n) Independent Accountants. Ernst & Young LLP, who have expressed their opinion with respect to the financial statements (which term as used in this Agreement includes the related notes thereto) and supporting schedules filed with the Commission as a part of the Registration Statement and included in the Disclosure Package and the Prospectus, are independent public accountants with respect to the Company as required by the Securities Act and the applicable published rules and regulations thereunder.

     (o) Preparation of the Financial Statements. The financial statements filed with the Commission as a part of the Registration Statement and included in the Disclosure Package and the Prospectus present fairly the consolidated financial position of the Company and its subsidiaries as of and at the dates indicated and the results of their operations and cash flows for the periods specified. The supporting schedules included in the Registration Statement present fairly the information required to be stated therein. Such financial statements and supporting schedules comply as to form with the applicable accounting requirements of the Securities Act and have been prepared in conformity with generally accepted accounting principles as applied in the United States applied on a consistent basis throughout the periods involved (“GAAP”), except as may be expressly stated in the related notes thereto. No other financial statements or supporting schedules are required to be included in the Registration Statement. The financial data set forth in each of the preliminary prospectus and the Prospectus under the captions “Summary—Summary Historical and Pro Forma Combined Financial Data” (excluding the pro forma financial data), “Selected Historical Combined Financial Data” and “Capitalization” fairly present the information set forth therein on a basis consistent with that of the audited financial

statements contained in the Registration Statement. The pro forma combined financial statements of the Company and its subsidiaries and the related notes thereto included under the caption “Summary—Summary Historical and Pro Forma Combined Financial Data”, “Unaudited Pro Forma Combined Financial Data” and elsewhere in each of the preliminary prospectus and the Prospectus and in the Registration Statement present fairly the information contained therein, have been prepared in accordance with the Commission’s rules and guidelines with respect to pro forma financial statements and have been properly presented on the basis described therein, and the assumptions used in the preparation thereof are reasonable and the adjustments used therein are appropriate to give effect to the transactions and circumstances referred to therein.

     (p) Incorporation and Good Standing of the Company and its Subsidiaries. Each of the Company and its subsidiaries has been duly incorporated and is validly existing as a corporation in good standing under the laws of the jurisdiction of its incorporation and has corporate power and authority to own or lease, as the case may be, and operate its properties and to conduct its business as described in the Disclosure Package and the Prospectus and, in the case of the Company, to enter into and perform its obligations under this Agreement. Each of the Company and each subsidiary is duly qualified as a foreign corporation to transact business and is in good standing in each jurisdiction in which such qualification is required, whether by reason of the ownership or leasing of property or the conduct of business, except for such jurisdictions where the failure to so qualify or to be in good standing would not, individually or in the aggregate, result in a material adverse effect on the condition, financial or otherwise, or on the earnings, business, properties, operations or prospects, whether or not arising from transactions in the ordinary course of business, of the Company and its subsidiaries, considered as one entity (a “Material Adverse Effect”). All of the issued and outstanding shares of capital stock of each subsidiary have been duly authorized and validly issued, are fully paid and nonassessable and, other than in conjunction with the Company’s revolving credit agreement, are owned by the Company, directly or through subsidiaries, free and clear of any security interest, mortgage, pledge, lien, encumbrance or claim. The Company does not own or control, directly or indirectly, any corporation, association or other entity other than the subsidiaries listed in Exhibit 21.1 to the Registration Statement.

     (q) Capitalization and Other Capital Stock Matters. The authorized, issued and outstanding capital stock of the Company is as set forth in each of the Disclosure Package and the Prospectus under the caption “Capitalization” (other than for subsequent issuances, if any, pursuant to employee benefit plans described in the Disclosure Package and the Prospectus or upon exercise of outstanding options or warrants described in the Disclosure Package and the Prospectus, as the case may be). The Common Stock (including the Shares) conforms in all material respects to the description thereof contained in each of the Disclosure Package and the Prospectus. All of the issued and outstanding shares of Common Stock (including the shares of Common Stock owned by the Selling Stockholder) have been duly authorized and validly issued, are fully paid and nonassessable and have been issued in compliance with federal and state securities laws. None of the outstanding shares of Common Stock were issued in violation of any preemptive rights, rights of first refusal or other similar rights to subscribe for or purchase securities of the Company. There are no authorized or outstanding options, warrants, preemptive rights, rights of first refusal or other rights to purchase, or equity or debt securities convertible into or exchangeable or exercisable for, any capital stock of the Company or any of its subsidiaries other than those accurately described in the Disclosure Package and the Prospectus.

The description of the Company’s stock option, stock bonus and other stock plans or arrangements, and the options or other rights granted thereunder, set forth in each of the Disclosure Package and the Prospectus accurately and fairly presents the information required to be shown with respect to such plans, arrangements, options and rights.

     (r) Listing. The Shares have been approved for listing on the New York Stock Exchange, subject only to official notice of issuance.

     (s) Non-Contravention of Existing Instruments; No Further Authorizations or Approvals Required. Neither the Company nor any of its subsidiaries is (i) in violation or in default (or, with the giving of notice or lapse of time, would be in default) under (“Default”) its charter or by-laws, (ii) in Default under any indenture, mortgage, loan or credit agreement, deed of trust, note, contract, franchise, lease or other agreement, obligation, condition, covenant or instrument to which the Company or such subsidiary is a party or by which it may be bound [(including, without limitation, the Company’s [revolving credit agreement, dated as of [___], 2006, by and among [ ])], or to which any of the property or assets of the Company or any of its subsidiaries is subject (each, an “Existing Instrument”), or (iii) in violation of any statute, law, rule, regulation, judgment, order or decree of any court, regulatory body, administrative agency, governmental body, arbitrator or other authority having jurisdiction over the Company or such subsidiary or any of its properties, as applicable, except with respect to clause (ii) only, for such Defaults and violations as would not, individually or in the aggregate, have a Material Adverse Effect. The Company’s execution, delivery and performance of this Agreement and consummation of the transactions contemplated hereby, by the Disclosure Package and by the Prospectus (i) have been duly authorized by all necessary corporate action and will not result in any Default under the charter or by-laws of the Company or any subsidiary, (ii) will not conflict with or constitute a breach of, or Default under, or result in the creation or imposition of any lien, charge or encumbrance upon any property or assets of the Company or any of its subsidiaries pursuant to, or require the consent of any other party to, any Existing Instrument, and (iii) will not result in any violation of any statute, law, rule, regulation, judgment, order or decree applicable to the Company or any of its subsidiaries of any court, regulatory body, administrative agency, governmental body, arbitrator or other authority having jurisdiction over the Company or any of its subsidiaries or any of its or their properties. No consent, approval, authorization or other order of, or registration or filing with, any court or other governmental or regulatory authority or agency is required for the Company’s execution, delivery and performance of this Agreement and consummation of the transactions contemplated hereby, by the Disclosure Package and by the Prospectus, except (A) such as have been obtained or made by the Company and are in full force and effect under the Securities Act, applicable state securities or blue sky laws and from the NASD and (B) such as have been obtained under the laws and regulations of jurisdictions outside the United States in which Directed Shares are offered.

     (t) No Material Actions or Proceedings. Except as otherwise disclosed in the Disclosure Package and the Prospectus, there are no legal or governmental actions, suits or proceedings pending or, to the best of the Company’s knowledge, threatened (i) against or affecting the Company or any of its subsidiaries, (ii) which has as the subject thereof any officer or director of, or property owned or leased by, the Company or any of its subsidiaries or (iii) relating to environmental or employment discrimination matters, where in any such case (A) there is a reasonable possibility that such action, suit or proceeding might be determined adversely to the

Company or such subsidiary and (B) any such action, suit or proceeding, if so determined adversely, would reasonably be expected to have a Material Adverse Effect or adversely affect the consummation of the transactions contemplated by this Agreement.

     (u) Labor Matters. No material labor problem or dispute with the employees of the Company or any of its subsidiaries exists or, to the knowledge of the Company, is threatened or imminent, and the Company is not aware of any existing or imminent labor disturbance by the employees of any of its or its subsidiaries’ principal suppliers, contractors or customers, that could have a Material Adverse Effect.

     (v) Intellectual Property Rights. The Company and its subsidiaries own, possess, license or have other rights to use, on reasonable terms, all patents, patent applications, trade and service marks, trade and service mark registrations, trade names, copyrights, licenses, inventions, trade secrets, technology, know-how and other intellectual property (collectively, the “Intellectual Property”) necessary for the conduct of the Company’s business as now conducted or as proposed in each of the Disclosure Package and the Prospectus to be conducted. Except as set forth in the Disclosure Package and the Prospectus, (a) no party has been granted an exclusive license to use any portion of such Intellectual Property owned by the Company; (b) to the knowledge of the Company there is no material infringement by third parties of any such Intellectual Property owned by or exclusively licensed to the Company; (c) there is no pending or, to the knowledge of the Company, threatened action, suit, proceeding or claim by others challenging the Company’s rights in or to any material Intellectual Property, and the Company has no knowledge of any facts which would form a reasonable basis for any such claim; (d) there is no pending or, to the knowledge of the Company, threatened action, suit, proceeding or claim by others challenging the validity or scope of any such Intellectual Property, and the Company has no knowledge of any facts which would form a reasonable basis for any such claim; and (e) there is no pending or, to the knowledge of the Company, threatened action, suit, proceeding or claim by others that the Company’s business as now conducted infringes or otherwise violates any patent, trademark, copyright, trade secret or other proprietary rights of others, and the Company has no knowledge of any other fact which would form a reasonable basis for any such claim.

     (w) All Necessary Permits, etc. The Company and each subsidiary possess such valid and current licenses, certificates, authorizations or permits issued by the appropriate state, federal or foreign regulatory agencies or bodies necessary to conduct their respective businesses, and neither the Company nor any subsidiary has received any notice of proceedings relating to the revocation or modification of, or non-compliance with, any such license, certificate, authorization or permit which, singly or in the aggregate, if the subject of an unfavorable decision, ruling or finding, could have a Material Adverse Effect.

     (x) Title to Properties. The Company and each of its subsidiaries has good and marketable title to all the properties and assets reflected as owned in the financial statements referred to in Section 1(o) above (or elsewhere in the Disclosure Package and the Prospectus), in each case, other than in connection with the Company’s revolving credit agreement, free and clear of any security interests, mortgages, liens, encumbrances, equities, claims and other defects, except such as do not materially and adversely affect the value of such property and do not materially interfere with the use made or proposed to be made of such property by the

Company or such subsidiary. The real property, improvements, equipment and personal property held under lease by the Company or any subsidiary are held under valid and enforceable leases, with such exceptions as are not material and do not materially interfere with the use made or proposed to be made of such real property, improvements, equipment or personal property by the Company or such subsidiary.

     (y) Tax Law Compliance. The Company and its consolidated subsidiaries have filed all necessary federal, state, local and foreign income and franchise tax returns in a timely manner and have paid all taxes reflected on such returns, and if due and payable, any related or similar assessment, fine or penalty levied against any of them, except for any taxes, assessments, fines or penalties as may be being contested in good faith and by appropriate proceedings. The Company has made adequate charges, accruals and reserves in accordance with GAAP in the applicable financial statements referred to in Section 1(o) above in respect of all federal, state, local and foreign income and franchise taxes for all current or prior periods as to which the tax liability of the Company or any of its consolidated subsidiaries has not been finally determined.

     (z) Company Not an “Investment Company”. The Company is not, and after receipt of payment for the Shares and the application of the proceeds thereof as contemplated under the caption “Use of Proceeds” in each of the preliminary prospectus and the Prospectus will not be, an “investment company” within the meaning of the Investment Company Act of 1940, as amended (the “Investment Company Act”) and will conduct its business in a manner so that it will not become subject to the Investment Company Act.

     (aa) Insurance. Each of the Company and its subsidiaries are insured by recognized, financially sound and reputable institutions with policies in such amounts and with such deductibles and covering such risks as are generally deemed adequate and customary for their businesses including, but not limited to, policies covering real and personal property owned or leased by the Company and its subsidiaries against theft, damage, destruction, acts of vandalism and earthquakes. All policies of insurance and fidelity or surety bonds insuring the Company or any of its subsidiaries or their respective businesses, assets, employees, officers and directors are in full force and effect; the Company and its subsidiaries are in compliance with the terms of such policies and instruments in all material respects; and there are no claims by the Company or any of its subsidiaries under any such policy or instrument as to which any insurance company is denying liability or defending under a reservation of rights clause; and neither the Company nor any such subsidiary has been refused any insurance coverage sought or applied for. The Company has no reason to believe that it or any subsidiary will not be able (i) to renew its existing insurance coverage as and when such policies expire or (ii) to obtain comparable coverage from similar institutions as may be necessary or appropriate to conduct its business as now conducted and at a cost that would not have a Material Adverse Effect.

     (bb) No Restrictions on Dividends. No subsidiary of the Company is currently prohibited, directly or indirectly, from paying any dividends to the Company, from making any other distribution on such subsidiary’s capital stock, from repaying to the Company any loans or advances to such subsidiary from the Company or from transferring any of such subsidiary’s property or assets to the Company or any other subsidiary of the Company, except as described in or contemplated by the Disclosure Package and the Prospectus.

     (cc) No Price Stabilization or Manipulation. The Company has not taken and will not take, directly or indirectly, any action designed to or that might be reasonably expected to cause or result in stabilization or manipulation of the price of the Common Stock to facilitate the sale or resale of the Shares.

     (dd) Disclosure Controls. The Company and its subsidiaries maintain an effective system of “disclosure controls and procedures” (as defined in Rule 13a-15 of the Exchange Act) that is designed to ensure that information required to be disclosed by the Company in reports that it files or submits under the Exchange Act is recorded, processed, summarized and reported within the time periods specified in the Commission’s rules and forms, including controls and procedures designed to ensure that such information is accumulated and communicated to the Company’s management as appropriate to allow timely decisions regarding required disclosure. The Company and its subsidiaries have carried out evaluations of the effectiveness of their disclosure controls and procedures as required by Rule 13a-15 of the Exchange Act.

     (ee) Related Party Transactions. There are no business relationships or related-party transactions involving the Company or any subsidiary or any other person required to be described in the preliminary prospectus or the Prospectus that have not been described as required.

     (ff) Internal Controls and Procedures. The Company maintains (i) effective internal control over financial reporting as defined in Rule 13a-15 under the Securities Exchange Act of 1934, as amended, and (ii) a system of internal accounting controls sufficient to provide reasonable assurance that (A) transactions are executed in accordance with management’s general or specific authorizations; (B) transactions are recorded as necessary to permit preparation of financial statements in conformity with generally accepted accounting principles and to maintain asset accountability; (C) access to assets is permitted only in accordance with management’s general or specific authorization; and (D) the recorded accountability for assets is compared with the existing assets at reasonable intervals and appropriate action is taken with respect to any differences.

     (gg) No Material Weakness in Internal Controls. Except as disclosed in the Disclosure Package and the Prospectus, since the end of the Company’s most recent audited fiscal year, there has been (i) no material weakness in the Company’s internal control over financial reporting (whether or not remediated) and (ii) no change in the Company’s internal control over financial reporting that has materially affected, or is reasonably likely to materially affect, the Company’s internal control over financial reporting.

     (hh) No Unlawful Contributions or Other Payments. Neither the Company nor any of its subsidiaries nor, to the knowledge of the Company, any director, officer, agent, employee or affiliate of the Company or any of its subsidiaries is aware of or has taken any action, directly or indirectly, that would result in a violation by such Persons of the FCPA, including, without limitation, making use of the mails or any means or instrumentality of interstate commerce corruptly in furtherance of an offer, payment, promise to pay or authorization of the payment of any money, or other property, gift, promise to give, or authorization of the giving of anything of value to any “foreign official” (as such term is defined in the FCPA) or any foreign political party or official thereof or any candidate for foreign political office, in contravention of the

FCPA, and the Company, its subsidiaries and, to the knowledge of the Company, its affiliates have conducted their businesses in compliance with the FCPA and have instituted and maintain policies and procedures designed to ensure, and which are reasonably expected to continue to ensure, continued compliance therewith.

     “FCPA” means Foreign Corrupt Practices Act of 1977, as amended, and the rules and regulations thereunder.

     (ii) No Conflict 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 applicable 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.

     (jj) No Conflict with OFAC Laws. Neither the Company nor any of its subsidiaries nor, 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. Treasury Department (“OFAC”); and the Company will not directly or indirectly use the proceeds of the offering, or lend, contribute or otherwise make available such proceeds, to any subsidiary, joint venture partner or other person or entity, for the purpose of financing the activities of any person currently subject to any U.S. sanctions administered by OFAC.

     (kk) Compliance with Environmental Laws. Except as otherwise disclosed in the Disclosure Package and the Prospectus, (i) neither the Company nor any of its subsidiaries is in violation of any federal, state, local or foreign law, regulation, order, permit or other requirement relating to pollution or protection of human health or the environment (including, without limitation, ambient air, surface water, groundwater, land surface or subsurface strata) or wildlife, including without limitation, laws and regulations relating to emissions, discharges, releases or threatened releases of chemicals, pollutants, contaminants, wastes, toxic substances, hazardous substances, petroleum and petroleum products (collectively, “Materials of Environmental Concern”), or otherwise relating to the manufacture, processing, distribution, use, treatment, storage, disposal, transport or handling of Materials of Environmental Concern (collectively, “Environmental Laws”), which violation includes, but is not limited to, noncompliance with any permits or other governmental authorizations required for the operation of the business of the Company or its subsidiaries under applicable Environmental Laws, or noncompliance with the terms and conditions thereof, nor has the Company or any of its subsidiaries received any written communication, whether from a governmental authority, citizens group, employee or otherwise, that alleges that the Company or any of its subsidiaries is in violation of any Environmental Law, except as would not, individually or in the aggregate, have a Material Adverse Effect; (ii) there is no claim, action or cause of action filed with a court or governmental authority, no investigation with respect to which the Company has received written notice, and no written notice received by the Company from any person or entity alleging potential liability for investigatory costs,

cleanup costs, governmental responses costs, natural resources damages, property damages, personal injuries, attorneys’ fees or penalties arising out of, based on or resulting from the presence, or release into the environment, of any Material of Environmental Concern at any location owned, leased or operated by the Company or any of its subsidiaries, now or in the past (collectively, “Environmental Claims”), pending or, to the best of the Company’s knowledge, threatened against the Company or any of its subsidiaries or any person or entity whose liability for any Environmental Claim the Company or any of its subsidiaries has retained or assumed either contractually or by operation of law, except as would not, individually or in the aggregate, have a Material Adverse Effect; (iii) to the best of the Company’s knowledge, there are no past, present or anticipated future actions, activities, circumstances, conditions, events or incidents, including, without limitation, the release, emission, discharge, presence or disposal of any Material of Environmental Concern, that reasonably could result in a violation of any Environmental Law, require expenditures to be incurred pursuant to Environmental Law, or form the basis of a potential Environmental Claim against the Company or any of its subsidiaries or against any person or entity whose liability for any Environmental Claim the Company or any of its subsidiaries has retained or assumed either contractually or by operation of law, except as would not, individually or in the aggregate, have a Material Adverse Effect; and (iv) neither the Company nor any of its subsidiaries is subject to any pending or, to the knowledge of the Company, threatened proceeding under Environmental Law to which a governmental authority is a party and which is reasonably likely to result in monetary sanctions of $100,000 or more.

     (ll) Periodic Review of Costs of Environmental Compliance. In the ordinary course of its business, the Company conducts a periodic review of the effect of Environmental Laws on the business, operations and properties of the Company and its subsidiaries, in the course of which it identifies and evaluates associated costs and liabilities (including, without limitation, any capital or operating expenditures required for clean-up, closure of properties or compliance with Environmental Laws or any permit, license or approval, any related constraints on operating activities and any potential liabilities to third parties). On the basis of such review and the amount of its established reserves, the Company has reasonably concluded that such associated costs and liabilities would not, individually or in the aggregate, have a Material Adverse Effect.

     (mm) ERISA Compliance. None of the following events has occurred or exists: (i) a failure to fulfill the obligations, if any, under the minimum funding standards of Section 302 of the United States Employee Retirement Income Security Act of 1974, as amended (“ERISA”), and the regulations and published interpretations thereunder with respect to a Plan, determined without regard to any waiver of such obligations or extension of any amortization period; (ii) an audit or investigation by the Internal Revenue Service, the U.S. Department of Labor, the Pension Benefit Guaranty Corporation or any other federal or state governmental agency or any foreign regulatory agency with respect to the employment or compensation of employees by the Company that could have a Material Adverse Effect on the Company; or (iii) any breach of any contractual obligation, or any violation of law or applicable qualification standards, with respect to the employment or compensation of employees by any member of the Company that could have a Material Adverse Effect. None of the following events has occurred or is reasonably likely to occur: (i) a material increase in the aggregate amount of contributions required to be made to all Plans in the current fiscal year of the Company compared to the amount of such contributions made in the Company’s most recently completed fiscal year; (ii) a material increase in the Company’s “accumulated post-retirement benefit obligations” (within the

meaning of Statement of Financial Accounting Standards 106) compared to the amount of such obligations in the Company’s most recently completed fiscal year; (iii) any event or condition giving rise to a liability under Title IV of ERISA that could have a Material Adverse Effect; or (iv) the filing of a claim by one or more employees or former employees of the Company related to their employment that could have a Material Adverse Effect. For purposes of this paragraph, the term “Plan” means a plan (within the meaning of Section 3(3) of ERISA) subject to Title IV of ERISA with respect to which any member of the Company may have any liability.

     (nn) Brokers. Other than as required by the terms of this Agreement, there is no broker, finder or other party that is entitled to receive from the Company any brokerage or finder’s fee or other fee or commission as a result of any transactions contemplated by this Agreement.

     (oo) No Outstanding Loans or Other Indebtedness. There are no outstanding loans, advances (except normal advances for business expenses in the ordinary course of business) or guarantees or indebtedness by the Company to or for the benefit of any of the officers or directors of the Company or any of the members of any of them, except as disclosed in the Disclosure Package and the Prospectus.

     (pp) Subsidiaries. The subsidiaries listed on Annex A attached hereto are the only significant subsidiaries of the Company as defined by Rule 1-02 of Regulation S-X (the “Subsidiaries”).

     (qq) Lending Relationship. Except as disclosed in the Disclosure Package and the Prospectus, the Company (i) does not have any material lending or other relationship with any bank or lending affiliate of any Underwriter and (ii) does not intend to use any of the proceeds from the sale of the Common Shares hereunder to repay any outstanding debt owed to any affiliate of any Underwriter.

     (rr) Statistical and Market Related Data. Nothing has come to the attention of the Company that has caused the Company to believe that the statistical and market-related data included in each of the Disclosure Package and the Prospectus is not based on or derived from sources that are reliable and accurate in all material respects.

     (ss) Directed Share Program. (i) The Registration Statement, the Prospectus, the Disclosure Package and any preliminary prospectus comply, and any further amendments or supplements thereto will comply, with any applicable laws or regulations of foreign jurisdictions in which the Prospectus, the Disclosure Package or any preliminary prospectus, as amended or supplemented, if applicable, are distributed in connection with the Directed Share Program, and (ii) no authorization, approval, consent, license, order, registration or qualification of or with any government, governmental instrumentality or court, other than such as have been obtained, is necessary under the securities laws and regulations of foreign jurisdictions in which the Directed Shares are offered outside the United States. The Company has not offered, or caused the Underwriters to offer, any Shares to any person pursuant to the Directed Share Program with the intent to unlawfully influence (i) a customer or supplier of the Company to alter the customer’s or supplier’s level or type of business with the Company or (ii) a trade journalist or publication to write or publish favorable information about the Company or its products.

     Any certificate signed by an officer of the Company and delivered to the Representatives shall be deemed to be a representation and warranty by the Company to each Underwriter as to the matters set forth therein.

     B. The Selling Stockholder represents, warrants and covenants to each Underwriter as follows:

     (a) The Underwriting Agreement. This Agreement has been duly authorized, executed and delivered by or on behalf of, and is a valid and binding agreement of, the Selling Stockholder.

     (b) Obligations of the Selling Stockholder. The Optional Shares represented by certificates are subject to the interests of the Underwriters hereunder.

     (c) Title to Shares to be Sold. The Selling Stockholder is, on the Closing Date (if Optional Shares are sold on the Closing Date) and on any Subsequent Closing Date, the record and beneficial owner of, and has good and valid title to, the Optional Shares free and clear of all liens, encumbrances, equities or claims and has duly indorsed such Optional Shares in blank, and assuming that the Underwriters acquire their interest in the Optional Shares they have purchased without notice of any adverse claim (within the meaning of Section 8-105 of the UCC), such Underwriters that have purchased Optional Shares delivered on the date hereof to DTC by making payment therefor, as provided herein, and that have had such Optional Shares credited to the securities account or accounts of such Underwriters maintained with DTC will have acquired a security entitlement (within the meaning of Section 8-102(a)(17) of the UCC) to such Optional Shares purchased by such Underwriters, and no action based on an adverse claim, may be asserted against such Underwriters with respect to such Optional Shares.

     (d) All Authorizations Obtained. The Selling Stockholder has the legal right and power, and all authorizations and approvals required by law and under its charter or by-laws, to enter into this Agreement, to sell, transfer and deliver all of the Optional Shares which may be sold by the Selling Stockholder pursuant to this Agreement and to comply with its other obligations hereunder and thereunder.

     (e) Delivery of the Optional Shares to be Sold. Delivery of the Optional Shares which are sold by the Selling Stockholder pursuant to this Agreement will pass good and valid title to such Optional Shares, free and clear of any security interest, mortgage, pledge, lien, encumbrance or other claim.

     (f) Non-Contravention; No Further Authorizations or Approvals Required. The execution and delivery by the Selling Stockholder of, and the performance by the Selling Stockholder of its obligations under, this Agreement, (i) will not result in any Default under, or require the consent of any other party to, the charter or by-laws or other organizational documents of the Selling Stockholder, (ii) will not conflict with or constitute a breach of, or Default under, any other agreement or instrument to which the Selling Stockholder is a party or by which it is bound or under which it is entitled to any right or benefit, and (iii) will not result in any violation of any statute, law, rule, regulation, judgment, order or decree applicable to the Selling Stockholder of any court, regulatory body, administrative agency, governmental body,

arbitrator or other authority having jurisdiction over the Selling Stockholder or its properties, except with respect to clause (ii) only, for such Defaults and violations as would not, individually or in the aggregate, have a Material Adverse Effect. No consent, approval, authorization or other order of, or registration or filing with, any court or other governmental authority or agency, is required for the consummation by the Selling Stockholder of the transactions contemplated in this Agreement, except such as have been obtained or made and are in full force and effect under the Securities Act, applicable state securities or blue sky laws and from the NASD.

     (g) No Registration or Other Similar Rights. The Selling Stockholder does not have any registration or other similar rights to have any equity or debt securities registered for sale by the Company under the Registration Statement or included in the offering contemplated by this Agreement, except for such rights as are described in the Prospectus under “Shares Eligible for Future Sale” and “Arrangements between Helix and Us — Registration Rights Agreement”.

     (h) No Further Consents, etc. No consent, approval or waiver is required under any instrument or agreement to which the Selling Stockholder is a party or by which it is bound or under which it is entitled to any right or benefit, in connection with the offering, sale or purchase by the Underwriters of any of the Optional Shares which may be sold by the Selling Stockholder under this Agreement or the consummation by the Selling Stockholder of any of the other transactions contemplated hereby.

     (i) Disclosure Made by the Selling Stockholder in the Prospectus. All information furnished by or on behalf of the Selling Stockholder in writing expressly for use in the Registration Statement, the Disclosure Package or the Prospectus or any amendment or supplement thereto used by the Company or any Underwriter, as the case may be, is, as of the Applicable Time, and on the Closing Date and any Subsequent Closing Date will be, true, correct and complete in all material respects, and as of the Applicable Time does not, and on the Closing Date and any Subsequent Closing Date will not, contain any untrue statement of a material fact or omit to state any material fact necessary to make such information not misleading. In addition, the Selling Stockholder (i) hereby makes the same representations and warranties to each Underwriter as the Company makes to such Underwriter under paragraphs (A)(c) and (A)(e) of this Section 1 with respect to information furnished by or on behalf of the Selling Stockholder in writing expressly for use in the Registration Statement, the Disclosure Package or the Prospectus or any amendment or supplement thereto used by the Company or any Underwriter, as the case may be, and (ii) confirms as accurate the number of shares of Common Stock set forth opposite the Selling Stockholder’s name in each of the preliminary prospectus and the Prospectus under the caption “Principal Stockholder” (both prior to and after giving effect to the sale of the Optional Shares).

     (j) No Price Stabilization or Manipulation. The Selling Stockholder has not taken and will not take, directly or indirectly, any action designed to or that might be reasonably expected to cause or result in stabilization or manipulation of the price of any security of the Company to facilitate the sale or resale of the Optional Shares.

     (k) No Inside Information. The Selling Stockholder is not prompted to sell shares of Common Stock by any information concerning the Company which is not set forth in the Registration Statement and the Disclosure Package.

     (l) No Free Writing Prospectuses. The Selling Stockholder represents that it has not prepared or had prepared on its behalf or used or referred to, any Free Writing Prospectus, and represents that it has not distributed any written materials in connection with the offer or sale of the Securities.

     Any certificate signed by or on behalf of the Selling Stockholder and delivered to the Representatives shall be deemed to be a representation and warranty by the Selling Stockholder to each Underwriter as to the matters covered thereby.

     Section 2. Purchase, Sale and Delivery of the Shares.

     (a) The Firm Shares. The Company agrees to issue and sell to the several Underwriters the Firm Shares upon the terms herein set forth. On the basis of the representations, warranties and agreements herein contained, and upon the terms but subject to the conditions herein set forth, the Underwriters agree, severally and not jointly, to purchase from the Company the respective number of Firm Shares set forth opposite their names on Schedule A. The purchase price per Firm Common Share to be paid by the several Underwriters to the Company shall be $[___] per share.

     (b) The Closing Date. Delivery of certificates for the Firm Shares to be purchased by the Underwriters and payment therefor shall be made at the offices of Davis Polk & Wardwell, 450 Lexington Avenue, New York, NY 10017 (or such other place as may be agreed to by the Company and the Representatives) at 9:00 a.m. New York time, on [___], or such other time and date not later than 1:30 p.m. New York time, on [___],as the Representatives shall designate by notice to the Company (the time and date of such closing are called the “Closing Date”).

     (c) The Optional Shares; the Subsequent Closing Date. In addition, on the basis of the representations, warranties and agreements herein contained, and upon the terms but subject to the conditions herein set forth, the Selling Stockholder hereby grants an option to the several Underwriters to purchase, severally and not jointly, up to an aggregate of [___] Optional Shares from the Selling Stockholder at the purchase price per share to be paid by the Underwriters for the Firm Shares. The option granted hereunder may be exercised at any time and from time to time upon notice by the Representatives to the Company and the Selling Stockholder, which notice may be given at any time within 30 days from the date of this Agreement. Such notice shall set forth (i) the aggregate number of Optional Shares as to which the Underwriters are exercising the option, (ii) the names and denominations in which the certificates for the Optional Shares are to be registered and (iii) the time, date and place at which such certificates will be delivered (which time and date may be simultaneous with, but not earlier than, the Closing Date; and in such case the term “Closing Date” shall refer to the time and date of delivery of certificates for the Firm Shares and the Optional Shares). Each time and date of delivery, if subsequent to the Closing Date, is called a “Subsequent Closing Date” and shall be determined by the Representatives and shall not be earlier than three nor later than five full business days after delivery of such notice of exercise. If any Optional Shares are to be purchased, each Underwriter agrees, severally and not jointly, to purchase the number of Optional Shares (subject to such adjustments to eliminate fractional shares as the Representatives may determine) that bears the same proportion to the total number of Optional Shares to be purchased as the number of Firm Shares set forth on Schedule A opposite the name of such Underwriter bears to the total number of Firm Shares.

     (d) Public Offering of the Shares. The Representatives hereby advise the Company and the Selling Stockholder that the Underwriters intend to offer for sale to the public, as described in the Prospectus, their respective portions of the Shares as soon after this Agreement has been executed and the Registration Statement has been declared effective as the Representatives, in their sole judgment, have determined is advisable and practicable.

     (e) Payment for the Shares. Payment for the Firm Shares shall be made at the Closing Date by wire transfer of immediately available funds to the order of the Company. Payment for the Optional Shares shall be made at the Closing Date or any Subsequent Closing Date, as applicable, by wire transfer of immediately available funds to the order of the Selling Stockholder.

     It is understood that the Representatives have been authorized, for their own account and the accounts of the several Underwriters, to accept delivery of and receipt for, and make payment of the purchase price for, the Firm Shares and any Optional Shares the Underwriters have agreed to purchase. BAS, individually and not as the Representative of the Underwriters, may (but shall not be obligated to) make payment for any Shares to be purchased by any Underwriter whose funds shall not have been received by the Representatives by the Closing Date or any Subsequent Closing Date, as the case may be, for the account of such Underwriter, but any such payment shall not relieve such Underwriter from any of its obligations under this Agreement.

     The Selling Stockholder hereby agrees that (i) it will pay all stock transfer taxes, stamp duties and other similar taxes, if any, payable upon the sale or delivery of the Optional Shares to be sold by the Selling Stockholder to the several Underwriters, or otherwise in connection with the performance of the Selling Stockholder’s obligations hereunder and (ii) the Underwriters are authorized to deduct for such payment any such amounts from the proceeds to the Selling Stockholder hereunder.

     (f) Delivery of the Shares. Delivery of the Firm Shares and the Optional Shares shall be made through the facilities of The Depository Trust Company unless the Representatives shall otherwise instruct. Time shall be of the essence, and delivery at the time and place specified in this Agreement is a further condition to the obligations of the Underwriters.

     (g) Delivery of Prospectus to the Underwriters. Not later than 10:00 a.m. on the second business day following the date the Shares are first released by the Underwriters for sale to the public, the Company shall deliver or cause to be delivered, copies of the Prospectus in such quantities and at such places as the Representatives shall request.

     Section 3. Covenants.

     A. The Company covenants and agrees with each Underwriter as follows:

     (a) Representatives’ Review of Proposed Amendments and Supplements. During the period beginning on the Applicable Time and ending on the later of the Closing Date or such date, as in the opinion of counsel for the Underwriters, the Prospectus is no longer required by

law to be delivered in connection with sales by an Underwriter or dealer, or would be required to be delivered but for Rule 172 (the “Prospectus Delivery Period”), prior to amending or supplementing the Registration Statement, the Disclosure Package or the Prospectus, the Company shall furnish to the Representatives for review a copy of each such proposed amendment or supplement, and the Company shall not file or use any such proposed amendment or supplement to which the Representatives reasonably object.

     (b) Securities Act Compliance. After the date of this Agreement, the Company shall promptly advise the Representatives in writing (i) when the Registration Statement, if not effective on the date hereof, shall have become effective, (ii) of the receipt of any comments of, or requests for additional or supplemental information from, the Commission, (iii) of the time and date of any filing of any post-effective amendment to the Registration Statement or any amendment or supplement to any preliminary prospectus or the Prospectus, (iv) of the time and date that any post-effective amendment to the Registration Statement becomes effective and (v) of the issuance by the Commission of any stop order suspending the effectiveness of the Registration Statement or of any order or notice preventing or suspending the use of the Registration Statement, any preliminary prospectus or the Prospectus, or of any proceedings to remove, suspend or terminate from listing or quotation the Common Stock from any securities exchange upon which it is listed for trading or included or designated for quotation, or of the threatening or initiation of any proceedings for any of such purposes. The Company shall use its best efforts to prevent the issuance of any such stop order or prevention or suspension of such use. If the Commission shall enter any such stop order or order or notice of prevention or suspension at any time, the Company will use its best efforts to obtain the lifting of such order at the earliest possible moment, or will file a new registration statement and use its best efforts to have such new registration statement declared effective as soon as practicable. Additionally, the Company agrees that it shall comply with the provisions of Rules 424(b), 430A and 433, as applicable, under the Securities Act, including with respect to the timely filing of documents thereunder, and will use its reasonable efforts to confirm that any filings made by the Company under such Rule 424(b) were received in a timely manner by the Commission.

     (c) Exchange Act Compliance. During the Prospectus Delivery Period, the Company will file all documents required to be filed with the Commission pursuant to Section 13, 14 or 15 of the Exchange Act in the manner and within the time periods required by the Exchange Act.

     (d) Amendments and Supplements to the Registration Statement, Prospectus and Other Securities Act Matters. If, during the Prospectus Delivery Period, any event or development shall occur or condition exist as a result of which the Disclosure Package or the Prospectus 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 or then prevailing, as the case may be, not misleading, or if it shall be necessary to amend or supplement the Disclosure Package or the Prospectus in order to make the statements therein, in the light of the circumstances under which they were made or then prevailing, as the case may be, not misleading, or if in the opinion of the Representatives it is otherwise necessary to amend or supplement the Registration Statement, the Disclosure Package or the Prospectus, or to file a new registration statement containing the Prospectus, in order to comply with law, including in connection with the delivery of the Prospectus, the Company agrees to (i) notify the Representatives of any such event or condition

and (ii) promptly prepare (subject to Section 3(a) and 3(f) hereof), file with the Commission (and use its best efforts to have any amendment to the Registration Statement or any new registration statement to be declared effective) and furnish at its own expense to the Underwriters and to dealers, amendments or supplements to the Registration Statement, the Disclosure Package or the Prospectus, or any new registration statement, necessary in order to make the statements in the Disclosure Package or the Prospectus as so amended or supplemented, in the light of the circumstances under which they were made or then prevailing, as the case may be, not misleading or so that the Registration Statement, the Disclosure Package or the Prospectus, as amended or supplemented, will comply with law. If at any time following the issuance of an Issuer Free Writing Prospectus there occurred or occurs an event or development as a result of which such Issuer Free Writing Prospectus conflicted or would conflict with the information contained in the Registration Statement or any other registration statement relating to the Shares or included or would include an untrue statement of a material fact or omitted or would 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 or prevailing at the time such event or development occurs or condition exists, not misleading, the Company will promptly notify the Representatives and will promptly amend or supplement such Issuer Free Writing Prospectus to eliminate or correct such conflict, untrue statement or omission.

     (e) Permitted Free Writing Prospectuses. The Company represents that it has not made, and agrees that, unless it obtains the prior written consent of the Representatives, it will not make, any offer relating to the Shares that would constitute an Issuer Free Writing Prospectus or that would otherwise constitute a Free Writing Prospectus required to be filed by the Company with the Commission or retained by the Company under Rule 433 of the Securities Act; provided that the prior written consent of the Representatives hereto shall be deemed to have been given in respect of the Free Writing Prospectuses included in Schedule B hereto. Any such Free Writing Prospectus consented to by the Representatives is hereinafter referred to as a “Permitted Free Writing Prospectus”. The Company agrees that (i) it has treated and will treat, as the case may be, each Permitted Free Writing Prospectus as an Issuer Free Writing Prospectus, and (ii) has complied and will comply, as the case may be, with the requirements of Rules 164 and 433 of the Securities Act applicable to any Permitted Free Writing Prospectus, including in respect of timely filing with the Commission, legending and record keeping.

     (f) Copies of any Amendments and Supplements to the Prospectus. The Company agrees to furnish the Representatives, without charge, during the Prospectus Delivery Period, as many copies of each preliminary prospectus, the Disclosure Package, the Prospectus and any amendments and supplements thereto as the Representatives may request.

     (g) Copies of the Registration Statement and the Prospectus. The Company will furnish to the Representatives and counsel for the Underwriters signed copies of the Registration Statement (including exhibits thereto) and, so long as delivery of a prospectus by an Underwriter or dealer may be required by the Act, as many copies of each preliminary prospectus, the Disclosure Package, the Prospectus and any supplement thereto as the Representatives may reasonably request.

     (h) Blue Sky Compliance. The Company shall cooperate with the Representatives and counsel for the Underwriters to qualify or register the Shares for sale under (or obtain exemptions from the application of) the state securities or blue sky laws or Canadian provincial securities laws or other foreign laws of those jurisdictions designated by the Representatives, shall comply with such laws and shall continue such qualifications, registrations and exemptions in effect so long as required for the distribution of the Shares. The Company shall not be required to qualify as a foreign corporation or to take any action that would subject it to general service of process in any such jurisdiction where it is not presently qualified or where it would be subject to taxation as a foreign corporation. The Company will advise the Representatives promptly of the suspension of the qualification or registration of (or any such exemption relating to) the Shares for offering, sale or trading in any jurisdiction or any initiation or threat of any proceeding for any such purpose, and in the event of the issuance of any order suspending such qualification, registration or exemption, the Company shall use its best efforts to obtain the withdrawal thereof at the earliest possible moment.

     (i) Use of Proceeds. The Company shall apply the net proceeds from the sale of the Shares sold by it in the manner described under the caption “Use of Proceeds” in each of the Disclosure Package and the Prospectus.

     (j) Transfer Agent. The Company shall engage and maintain, at its expense, a registrar and transfer agent for the Common Stock.

     (k) Earnings Statement. As soon as practicable, the Company will make generally available to its security holders and to the Representatives an earnings statement (which need not be audited) covering the twelve-month period ending [June 30, 2007] that satisfies the provisions of Section 11(a) of the Securities Act and Rule 158 under the Securities Act.

     (l) Periodic Reporting Obligations. During the Prospectus Delivery Period the Company shall file, on a timely basis, with the Commission and the New York Stock Exchange all reports and documents required to be filed under the Exchange Act. Additionally, the Company shall report the use of proceeds from the issuance of the Shares as may be required under Rule 463 under the Securities Act.

     (m) Directed Share Program. In connection with the Directed Share Program, the Company will ensure that the Directed Shares will be restricted to the extent required by the NASD or the NASD rules from sale, transfer, assignment, pledge or hypothecation for a period of three months following the date of the effectiveness of the Registration Statement. The DSP Underwriter will notify the Company as to which DSP Participants will need to be so restricted. The Company will direct the transfer agent to place stop transfer restrictions upon such securities for such period of time. Should the Company release, or seek to release, from such restrictions any of the Directed Shares, the Company agrees to reimburse the Underwriters for any reasonable expenses (including, without limitation, legal expenses) they incur in connection with such release.

     (n) Listing. The Company will use its best efforts to list, subject to notice of issuance, the Shares on the New York Stock Exchange.

     (o) Agreement Not to Offer or Sell Additional Shares. During the period commencing on the date hereof and ending on the 180th day following the date of the Prospectus, the Company will not, without the prior written consent of the Representatives (which consent may be withheld at the sole discretion of the Representatives), directly or indirectly, sell, offer, contract or grant any option to sell, pledge, transfer or establish an open “put equivalent position” or liquidate or decrease a “call equivalent position” within the meaning of Rule 16a-1(h) under the Exchange Act, or otherwise dispose of or transfer (or enter into any transaction which is designed to, or might reasonably be expected to, result in the disposition of), or announce the offering of, or file any registration statement (other than a registration statement on Form S-8) under the Securities Act in respect of, any shares of Common Stock, options or warrants to acquire shares of the Common Stock or securities exchangeable or exercisable for or convertible into shares of Common Stock (other than as contemplated by this Agreement with respect to the Shares); provided, however, that the Company may issue shares of its Common Stock or options to purchase its Common Stock, or Common Stock upon exercise of options, pursuant to any stock option, stock bonus or other stock plan or arrangement described in the Prospectus, but only if the holders of such shares, options, or shares issued upon exercise of such options, agree in writing not to sell, offer, dispose of or otherwise transfer any such shares or options during such 180-day period without the prior written consent of the Representatives (which consent may be withheld at the sole discretion of the Representatives). Notwithstanding the foregoing, if (x) during the last 17 days of the 180-day restricted period the Company issues an earnings release or material news or a material event relating to the Company occurs, or (y) prior to the expiration of the 180-day restricted period, the Company announces that it will release earnings results during the 16-day period beginning on the last day of the 180-day period, the restrictions imposed in this clause shall continue to apply until the expiration of the 18-day period beginning on the issuance of the earnings release or the occurrence of the material news or material event. The Company will provide the Representatives and any co-managers and each individual subject to the restricted period pursuant to the lockup letters described in Section 5(h) with prior notice of any such announcement that gives rise to an extension of the restricted period.

     (p) Compliance with Sarbanes-Oxley Act. The Company will comply with all applicable securities and other laws, rules and regulations, including, without limitation, the Sarbanes-Oxley Act, and use its reasonable best efforts to cause the Company’s directors and officers, in their capacities as such, to comply with such laws, rules and regulations, including, without limitation, the provisions of the Sarbanes-Oxley Act.

     (q) Future Reports to Stockholders. To furnish to its stockholders as soon as practicable after the end of each fiscal year an annual report (including a balance sheet and statements of income, stockholders’ equity and cash flows of the Company and its consolidated subsidiaries certified by independent public accountants) and, as soon as practicable after the end of each of the first three quarters of each fiscal year (beginning with the fiscal quarter ending after the effective date of the Registration Statement), to make available to its stockholders consolidated summary financial information of the Company and its subsidiaries for such quarter in reasonable detail.

     (r) Future Reports to the Representatives. During the period of five years hereafter the Company will furnish or make available to the Representatives at 9 West 57th Street, New York, NY 10022 (i) as soon as practicable after the end of each fiscal year, copies of the Annual Report of the Company containing the balance sheet of the Company as of the close of such fiscal year and statements of income, stockholders’ equity and cash flows for the year then ended and the

opinion thereon of the Company’s independent public or certified public accountants; (ii) as soon as practicable after the filing thereof, copies of each proxy statement, Annual Report on Form 10-K, Quarterly Report on Form 10-Q, Current Report on Form 8-K or other report filed by the Company with the Commission, the NASD or any securities exchange; and (iii) as soon as available, copies of any report or communication of the Company mailed generally to holders of its capital stock.

     (s) Investment Limitation. The Company shall not invest, or otherwise use the proceeds received by the Company from its sale of the Shares in such a manner as would require the Company or any of its subsidiaries to register as an investment company under the Investment Company Act.

     (t) No Manipulation of Price. The Company will not take, directly or indirectly, any action designed to cause or result in, or that has constituted or might reasonably be expected to constitute, under the Exchange Act or otherwise, the stabilization or manipulation of the price of any securities of the Company to facilitate the sale or resale of the Shares.

     (u) Existing Lock-Up Agreement. The Company will enforce all existing agreements between the Company and any of its security holders that prohibit the sale, transfer, assignment, pledge or hypothecation of any of the Company’s securities in connection with the Company’s initial public offering. In addition, the Company will direct the transfer agent to place stop transfer restrictions upon any such securities of the Company that are bound by such existing “lock-up” agreements for the duration of the periods contemplated in such agreements.

     B. The Selling Stockholder further covenants and agrees with each Underwriter:

     (a) Agreement Not to Offer or Sell Additional Shares. The Selling Stockholder will not, without the prior written consent of the Representatives (which consent may be withheld in its sole discretion), directly or indirectly, sell, offer, contract or grant any option to sell (including without limitation any short sale), pledge, transfer, establish an open “put equivalent position” or liquidate or decrease a “call equivalent position” within the meaning of Rule 16a-1(h) under the Exchange Act, or otherwise dispose of or transfer (or enter into any transaction which is designed to, or might reasonably be expected to, result in the disposition of) any shares of Common Stock, options or warrants to acquire shares of Common Stock, or securities exchangeable or exercisable for or convertible into shares of Common Stock currently or hereafter owned either of record or beneficially (as defined in Rule 13d-3 under Securities Exchange Act of 1934, as amended) by the undersigned, or publicly announce the undersigned’s intention to do any of the foregoing, for a period commencing on the date hereof and continuing through the close of trading on the date 180 days after the date of the Prospectus other than pursuant to this Agreement. In addition, such Selling Stockholder agrees that, without the prior written consent of the Representatives, it will not, during the period commencing on the date hereof and ending 180 days after the date of the Prospectus, make any demand for or exercise any right with respect to, the registration of any shares of Common Stock or any security convertible into or exercisable or exchangeable for Common Stock. Notwithstanding the foregoing, if (x) during the last 17 days of the 180-day restricted period the Company issues an earnings release or material news or a material event relating to the Company occurs, or (y) prior to the expiration of the 180-day restricted period, the Company announces that it will release

earnings results during the 16-day period beginning on the last day of the 180-day period, the restrictions imposed in this clause shall continue to apply until the expiration of the 18-day period beginning on the issuance of the earnings release or the occurrence of the material news or material event. The Company will provide the Representatives and any co-managers and each individual subject to the restricted period pursuant to the lockup letters described in Section 5(j) with prior notice of any such announcement that gives rise to an extension of the restricted period.

     (b) Delivery of Forms W-8 and W-9. To deliver to the Representatives prior to the Closing Date a properly completed and executed United States Treasury Department Form W-8 (if the Selling Stockholder is a non-United States person) or Form W-9 (if the Selling Stockholder is a United States person).

     (c) Notification of Material Changes. During the Prospectus Delivery Period, the Selling Stockholder will advise the Representatives promptly, and if requested by the Representatives, will confirm such advice in writing, of (i) any Material Adverse Change of which it has knowledge, (ii) any change in information in the Registration Statement, the Prospectus or any Free Writing Prospectus or any amendment or supplement thereto relating to the Selling Stockholder or (iii) any new material information relating to the Company or relating to any matter stated in the Prospectus or any Free Writing Prospectus or any amendment or supplement thereto which comes to the attention of the Selling Stockholder.

     (d) No Free Writing Prospectuses. The Selling Stockholder agrees that it will not prepare or have prepared on its behalf or use or refer to, any Free Writing Prospectus, and agrees that it will not distribute any written materials in connection with the offer or sale of the Securities.

     The Representatives, on behalf of the several Underwriters, may, in their sole discretion, waive in writing the performance by the Company or the Selling Stockholder of any one or more of the foregoing covenants or extend the time for their performance. Notwithstanding the foregoing, the Representatives, for the benefit of each of the other Underwriters, agree not to consent to any action proposed to be taken by the Company or the Selling Stockholder or any other holder of the Company’s securities that would otherwise be prohibited by, or to waive compliance by the Company or the Selling Stockholder or any such other security holder with the provisions of, Section 3(A)(o) or 3(B)(a) above or any lock-up agreement delivered pursuant to Section 5(j) below without giving each of the other Underwriters at least 17 days prior notice (or such shorter notice as each of the other Underwriters may deem acceptable to permit compliance with applicable provisions of NYSE Rule 472(f) and NASD Conduct Rule 2711(f) restricting publication and distribution of research and public appearances by research analysts before and after the expiration, waiver or termination of a lock-up agreement).

     Section 4. Payment of Expenses. The Company agrees to pay all costs, fees and expenses incurred in connection with the performance of its obligations hereunder and in connection with the transactions contemplated hereby, including without limitation (i) all expenses incident to the issuance and delivery of the Shares (including all printing and engraving costs), (ii) all fees and expenses of the registrar and transfer agent of the Common Stock, (iii) all necessary issue, transfer and other stamp taxes in connection with the issuance and sale of the

Shares to the Underwriters, (iv) all fees and expenses of the Company’s counsel, independent public or certified public accountants and other advisors, (v) all costs and expenses incurred in connection with the preparation, printing, filing, shipping and distribution of the Registration Statement (including financial statements, exhibits, schedules, consents and certificates of experts), each Permitted Free Writing Prospectus, each preliminary prospectus and the Prospectus, and all amendments and supplements thereto, and this Agreement, (vi) all filing fees, attorneys’ fees and expenses incurred by the Company or the Underwriters in connection with qualifying or registering (or obtaining exemptions from the qualification or registration of) all or any part of the Shares for offer and sale under the state securities or blue sky laws or the provincial securities laws of Canada, and, if requested by the Representatives, preparing and printing a “Blue Sky Survey” or memorandum, and any supplements thereto, advising the Underwriters of such qualifications, registrations and exemptions, (vii) the filing fees incident to, and the reasonable fees and expenses of counsel for the Underwriters in connection with, the NASD’s review and approval of the Underwriters’ participation in the offering and distribution of the Shares, (viii) the fees and expenses associated with listing of the Common Stock on the New York Stock Exchange, (ix) all transportation and other expenses incurred in connection with presentations to prospective purchasers of the Shares, except that the Company and the Underwriters will each pay 50% of the cost of privately chartered airplanes used for such purposes, (x) all other fees, costs and expenses referred to in Item 13 of Part II of the Registration Statement and (xi) all costs and expenses of the Underwriters, including the fees and disbursements of counsel for the Underwriters, in connection with matters related to the Directed Shares which are designated by the Company for sale to DSP Participants. Except as provided in this Section 4, Section 6, Section 8 and Section 9 hereof, the Underwriters shall pay their own expenses, including the fees and disbursements of their counsel.

     The Selling Stockholder further agrees with each Underwriter to pay (directly or by reimbursement) all fees and expenses incident to the performance of its obligations under this Agreement which are not otherwise specifically provided for herein, including but not limited to (i) fees and expenses of counsel and other advisors for the Selling Stockholder and (ii) expenses and taxes incident to the sale and delivery of the Optional Shares to be sold by the Selling Stockholder to the Underwriters hereunder.

     This Section 4 shall not affect or modify any separate, valid agreement relating to the allocation of payment of expenses between the Company, on the one hand, and the Selling Stockholder, on the other hand.

     Section 5. Conditions of the Obligations of the Underwriters. The obligations of the several Underwriters to purchase and pay for the Shares as provided herein on the Closing Date and, with respect to the Optional Shares, any Subsequent Closing Date, shall be subject to the accuracy of the representations and warranties on the part of the Company and the Selling Stockholder set forth in Section 1(A) and (B) respectively, hereof as of the date hereof and as of the Closing Date as though then made and, with respect to the Optional Shares, as of any Subsequent Closing Date as though then made, to the accuracy of the statements of the Company and the Selling Stockholder made in any certificates pursuant to the provisions hereof, to the timely performance by the Company and the Selling Stockholder of their respective covenants and other obligations hereunder, and to each of the following additional conditions:

     (a) Accountants’ Comfort Letter. On the date hereof, the Representatives shall have received from Ernst & Young LLP, independent public accountants for the Company, a letter dated the date hereof addressed to the Underwriters, the form of which is attached as Exhibit A.

     (b) Compliance with Registration Requirements; No Stop Order; No Objection from NASD. For the period from and after effectiveness of this Agreement and prior to the Closing Date and, with respect to the Optional Shares, any Subsequent Closing Date:

     (i) the Company shall have filed the Prospectus with the Commission (including the information required by Rule 430A under the Securities Act) in the manner and within the time period required by Rule 424(b) under the Securities Act without reliance on Rule 424(b)(8); or the Company shall have filed a post-effective amendment to the Registration Statement containing the information required by such Rule 430A, and such post-effective amendment shall have become effective; and the Company shall have filed with the Commission any Free Writing Prospectus, to the extent, and in the manner and within the time period, required by Rule 433 under the Securities Act;

     (ii) all material required to be filed by the Company pursuant to Rule 433(d) under the Securities Act shall have been filed with the Commission within the applicable time periods prescribed for such filings under such Rule 433;

     (iii) no stop order suspending the effectiveness of the Registration Statement, or any post-effective amendment to the Registration Statement, shall be in effect and no proceedings for such purpose or pursuant to Section 8A of the Securities Act against the Company or related to the offering shall have been instituted or threatened by the Commission; and

     (iv) the NASD shall have raised no objection to the fairness and reasonableness of the underwriting terms and arrangements.

     (c) No Material Adverse Change or Ratings Agency Change. For the period from and after the date of this Agreement, or the respective dates as of which information is given in the Prospectus and the Disclosure Package, and prior to the Closing Date and, with respect to the Optional Shares, any Subsequent Closing Date:

     (i) in the judgment of the Representatives there shall not have occurred any Material Adverse Change;

     (ii) there shall not have been any change or decrease specified in the letter or letters referred to in paragraph (a) of this Section 5 which is, in the sole judgment of the Representatives, so material and adverse as to make it impractical or inadvisable to proceed with the offering or delivery of the Shares as contemplated by the Registration Statement and the Prospectus; and

     (iii) there shall not have occurred any downgrading, nor shall any notice have been given of any intended or potential downgrading or of any review for a possible change that does not indicate the direction of the possible change, in the rating accorded any securities of the Company or any of its subsidiaries by any “nationally recognized statistical rating organization” as such term is defined for purposes of Rule 436(g)(2) under the Securities Act.

     (d) Opinion of Counsel for the Company. On each of the Closing Date and any Subsequent Closing Date, the Representatives shall have received the favorable opinion of (i) Fulbright & Jaworski L.L.P., counsel for the Company, dated as of such Closing Date, the form of which is attached as Exhibit B and (ii) Lisa Buchanan, General Counsel of the Company, dated as of such Closing Date, the form of which is attached as Exhibit C.

     (e) Opinion of Counsel for the Underwriters. On each of the Closing Date and any Subsequent Closing Date, the Representatives shall have received the favorable opinion of Davis Polk & Wardwell, counsel for the Underwriters, dated as of such Closing Date, in form and substance satisfactory to, and addressed to, the Representatives, with respect to the issuance and sale of the Shares, the Registration Statement, the Prospectus (together with any supplement thereto), the Disclosure Package and other related matters as the Representatives may reasonably require, and the Company shall have furnished to such counsel such documents as they request for the purpose of enabling them to pass upon such matters.

     (f) Officers’ Certificate. On each of the Closing Date and any Subsequent Closing Date, the Representatives shall have received a written certificate executed by the Chairman of the Board, Chief Executive Officer or President of the Company and the Chief Financial Officer or Chief Accounting Officer of the Company, dated as of such Closing Date, to the effect that the signers of such certificate have carefully examined the Registration Statement, the Prospectus and any amendment or supplement thereto, any Issuer Free Writing Prospectus, any Permitted Free Writing Prospectus and any amendment or supplement thereto and this Agreement, to the effect set forth in subsections (b) and (c)(iii) of this Section 5, and further to the effect that:

     (i) for the period from and after the date of this Agreement and prior to such Closing Date, there has not occurred any Material Adverse Change;

     (ii) the representations, warranties and covenants of the Company set forth in Section 1 of this Agreement are true and correct on and as of the Closing Date with the same force and effect as though expressly made on and as of such Closing Date; and

     (iii) the Company has complied with all the agreements hereunder and satisfied all the conditions on its part to be performed or satisfied hereunder at or prior to such Closing Date.

     (g) Bring-down Comfort Letter. On each of the Closing Date and any Subsequent Closing Date, the Representatives shall have received from Ernst & Young LLP, independent public accountants for the Company, a letter dated such date, in form and substance satisfactory to the Representatives, to the effect that they reaffirm the statements made in the letter furnished by them pursuant to subsection (a) of this Section 5, except that the specified date referred to therein for the carrying out of procedures shall be no more than three business days prior to the Closing Date or Subsequent Closing Date, as the case may be.

     (h) Opinion of Counsel for the Selling Stockholder. On the Closing Date or the Subsequent Closing Date, as the case may be, the Representatives shall have received the favorable opinion of Fulbright & Jaworski L.L.P., counsel for the Selling Stockholder, dated as of such Closing Date, the form of which is attached as Exhibit D.

     (i) Selling Stockholder’s Certificate. On the Closing Date or the Subsequent Closing Date, as the case may be, the Representatives shall receive a written certificate executed by the Selling Stockholder, dated as of such Closing Date, to the effect that:

     (i) the signers of such certificate have carefully examined the Registration Statement, the Prospectus, any Issuer Free Writing Prospectus and any amendment or supplement thereto and this Agreement, and that the representations, warranties and covenants of the Selling Stockholder set forth in Section 1(B) of this Agreement are true and correct on and as of the Closing Date with the same force and effect as though expressly made by the Selling Stockholder on and as of such Closing Date; and

     (ii) the Selling Stockholder has complied with all the agreements and satisfied all the conditions on its part to be performed or satisfied at or prior to such Closing Date.

     (j) Lock-Up Agreement from Certain Securityholders of the Company other than Selling Stockholder. On or prior to the date hereof, the Company shall have furnished to the Representatives an agreement in the form of Exhibit E hereto from each director and officer and such agreement shall be in full force and effect on each of the Closing Date and any Subsequent Closing Date.

     (k) Listing of Shares. The Common Stock shall have been listed and admitted and authorized for trading on the NYSE, and satisfactory evidence of such actions shall have been provided to the Representatives.

     (l) Additional Documents. On or before each of the Closing Date and any Subsequent Closing Date, the Representatives and counsel for the Underwriters shall have received such information, documents and opinions as they may reasonably require for the purposes of enabling them to pass upon the issuance and sale of the Shares as contemplated herein, or in order to evidence the accuracy of any of the representations and warranties, or the satisfaction of any of the conditions or agreements, herein contained.

     If any condition specified in this Section 5 is not satisfied when and as required to be satisfied, this Agreement may be terminated by the Representatives by notice to the Company and the Selling Stockholder at any time on or prior to the Closing Date and, with respect to the Optional Shares, at any time prior to the applicable Subsequent Closing Date, which termination shall be without liability on the part of any party to any other party, except that Section 4, Section 6, Section 8 and Section 9 shall at all times be effective and shall survive such termination.

     Section 6. Reimbursement of Underwriters’ Expenses. If this Agreement is terminated by the Representatives pursuant to Section 5, Section 7, Section 10 or Section 11, or if the sale to the Underwriters of the Shares on the Closing Date is not consummated because of any refusal, inability or failure on the part of the Company or the Selling Stockholder to perform any agreement herein or to comply with any provision hereof, the Company agrees to reimburse the Representatives and the other Underwriters (or such Underwriters as have terminated this

Agreement with respect to themselves), severally, upon demand for all out-of-pocket expenses that shall have been reasonably incurred by the Representatives and the Underwriters in connection with the proposed purchase and the offering and sale of the Shares, including but not limited to fees and disbursements of counsel, printing expenses, travel expenses, postage, facsimile and telephone charges.

     Section 7. Effectiveness of this Agreement. This Agreement shall become effective upon the execution of this Agreement by the parties hereto.

     Section 8. Indemnification.

     (a) Indemnification of the Underwriters by the Company. The Company agrees to indemnify and hold harmless each Underwriter, its directors, officers, employees and agents, and each person, if any, who controls any Underwriter within the meaning of the Securities Act and the Exchange Act against any loss, claim, damage, liability or expense, as incurred, to which such Underwriter or such controlling person may become subject, insofar as such loss, claim, damage, liability or expense (or actions in respect thereof as contemplated below) arises out of or is based (i) upon any untrue statement or alleged untrue statement of a material fact contained in the Registration Statement, or any amendment thereto, including any information deemed to be a part thereof pursuant to Rule 430A, Rule 430B or Rule 430C under the Securities Act, or the omission or alleged omission therefrom of a material fact required to be stated therein or necessary to make the statements therein not misleading; or (ii) upon any untrue statement or alleged untrue statement of a material fact contained in any Issuer Free Writing Prospectus, any Permitted Free Writing Prospectus, any preliminary prospectus or the Prospectus (or any amendment or supplement thereto) or any prospectus wrapper material distributed in [___] in connection with the reservation and sale of Directed Shares to [the DSP Participants], or the omission or alleged omission therefrom of a material fact necessary in order to make the statements therein, in the light of the circumstances under which they were made, not misleading, and to reimburse each Underwriter, its officers, directors, employees, agents and each such controlling person for any and all expenses (including the fees and disbursements of counsel chosen by the Representatives) as such expenses are reasonably incurred by such Underwriter, or its officers, directors, employees and agents or such controlling person in connection with investigating, defending, settling, compromising or paying any such loss, claim, damage, liability, expense or action; provided, however, that the foregoing indemnity agreement shall not apply to any loss, claim, damage, liability or expense to the extent, but only to the extent, arising out of or based upon any untrue statement or alleged untrue statement or omission or alleged omission made in reliance upon and in conformity with written information furnished to the Company by the Representatives expressly for use in the Registration Statement, any Issuer Free Writing Prospectus, any Permitted Free Writing Prospectus, any preliminary prospectus or the Prospectus (or any amendment or supplement thereto).The indemnity agreement set forth in this Section 8(a) shall be in addition to any liabilities that the Company may otherwise have.

     (b) Indemnification of the Underwriters by the Selling Stockholder. The Selling Stockholder agrees to indemnify and hold harmless each Underwriter, its directors, officers, employees and agents, and each person, if any, who controls any Underwriter within the meaning of the Securities Act and the Exchange Act against any loss, claim, damage, liability or

expense, as incurred, to which such Underwriter or such controlling person may become subject, insofar as such loss, claim, damage, liability or expense (or actions in respect thereof as contemplated below) arises out of or is based (i) upon any untrue statement or alleged untrue statement of a material fact contained in the Registration Statement, or any amendment thereto, including any information deemed to be a part thereof pursuant to Rule 430A, Rule 430B or Rule 430C under the Securities Act, or the omission or alleged omission therefrom of a material fact required to be stated therein or necessary to make the statements therein not misleading; or (ii) upon any untrue statement or alleged untrue statement of a material fact contained in any Issuer Free Writing Prospectus, any Permitted Free Writing Prospectus, any preliminary prospectus or the Prospectus (or any amendment or supplement thereto) or any prospectus wrapper material distributed in [___] in connection with the reservation and sale of Directed Shares to [the DSP Participants], or the omission or alleged omission therefrom of a material fact necessary in order to make the statements therein, in the light of the circumstances under which they were made, not misleading, and to reimburse each Underwriter, its officers, directors, employees, agents and each such controlling person for any and all expenses (including the fees and disbursements of counsel chosen by the Representatives) as such expenses are reasonably incurred by such Underwriter, or its officers, directors, employees and agents or such controlling person in connection with investigating, defending, settling, compromising or paying any such loss, claim, damage, liability, expense or action; provided that the foregoing indemnity (A) shall only apply to the extent (1) that the untrue statement or omission or alleged untrue statement or omission was made in reliance upon and in conformity with information furnished in writing by or on behalf of the Selling Stockholder expressly for use in the Registration Statement or any amendment thereto, any Issuer Free Writing Prospectus, any Permitted Free Writing Prospectus, any preliminary prospectus or the Prospectus (or any amendment or supplement thereto) or any prospectus wrapper material and (2) of the amount of proceeds (before deducting expenses) received by the Selling Stockholder in connection with the sale of the Selling Stockholder’s Shares pursuant to this agreement and (B) shall not apply to any loss, claim, damage, liability or expense to the extent, but only to the extent, arising out of or based upon any untrue statement or alleged untrue statement or omission or alleged omission made in reliance upon and in conformity with written information furnished to the Company by the Representatives expressly for use in the Registration Statement, any Issuer Free Writing Prospectus, any Permitted Free Writing Prospectus, any preliminary prospectus or the Prospectus (or any amendment or supplement thereto). The indemnity agreement set forth in this Section 8(b) shall be in addition to any liabilities that the Selling Stockholder may otherwise have.

     (c) Indemnification of the Company, its Directors and Officers and the Selling Stockholder. Each Underwriter agrees, severally and not jointly, to indemnify and hold harmless the Company, each of its directors, each of its officers who signed the Registration Statement, the Selling Stockholder and each person, if any, who controls the Company or the Selling Stockholder within the meaning of the Securities Act or the Exchange Act, against any loss, claim, damage, liability or expense, as incurred, to which the Company, or any such director, officer, Selling Stockholder or controlling person may become subject, insofar as such loss, claim, damage, liability or expense (or actions in respect thereof as contemplated below) arises out of or is based upon any untrue or alleged untrue statement of a material fact contained in the Registration Statement, any Issuer Free Writing Prospectus, any Permitted Free Writing Prospectus, any preliminary prospectus or the Prospectus (or any amendment or supplement thereto), or arises out of or is based upon the omission or alleged omission to state therein a

material fact required to be stated therein or necessary to make the statements therein not misleading, in each case to the extent, and only to the extent, that such untrue statement or alleged untrue statement or omission or alleged omission was made in the Registration Statement, any Issuer Free Writing Prospectus, any Permitted Free Writing Prospectus, any preliminary prospectus or the Prospectus (or any amendment or supplement thereto), in reliance upon and in conformity with written information furnished to the Company and the Selling Stockholder by the Representatives expressly for use therein; and to reimburse the Company, or any such director, officer, the Selling Stockholder or controlling person for any legal and other expense reasonably incurred by the Company, or any such director, officer, the Selling Stockholder or controlling person in connection with investigating, defending, settling, compromising or paying any such loss, claim, damage, liability, expense or action. Each of the Company and the Selling Stockholder hereby acknowledges that the only information that the Underwriters have furnished to the Company and the Selling Stockholder expressly for use in the Registration Statement, any Issuer Free Writing Prospectus, any Permitted Free Writing Prospectus, any preliminary prospectus or the Prospectus (or any amendment or supplement thereto) are the statements set forth in (A) the table in the first paragraph, (B) the subsection “Stabilization” and (C) the subsection “Discretionary Accounts”, all under the caption “Underwriting” in the Prospectus. The indemnity agreement set forth in this Section 8(c) shall be in addition to any liabilities that each Underwriter may otherwise have.

     (d) Notifications and Other Indemnification Procedures. Promptly after receipt by an indemnified party under this Section 8 of notice of the commencement of any action, such indemnified party will, if a claim in respect thereof is to be made against an indemnifying party under this Section 8, notify the indemnifying party in writing of the commencement thereof; but the failure to so notify the indemnifying party (i) will not relieve it from liability under paragraph (a), (b) or (c) above unless and to the extent it did not otherwise learn of such action and such failure results in the forfeiture by the indemnifying party of substantial rights and defenses and (ii) will not, in any event, relieve the indemnifying party from any liability other than the indemnification obligation provided in paragraph (a), (b) or (c) above. In case any such action is brought against any indemnified party and such indemnified party seeks or intends to seek indemnity from an indemnifying party, the indemnifying party will be entitled to participate in, and, to the extent that it shall elect, jointly with all other indemnifying parties similarly notified, by written notice delivered to the indemnified party promptly after receiving the aforesaid notice from such indemnified party, to assume the defense thereof with counsel satisfactory to such indemnified party; provided, however, if the defendants in any such action include both the indemnified party and the indemnifying party and the indemnified party shall have reasonably concluded that a conflict may arise between the positions of the indemnifying party and the indemnified party in conducting the defense of any such action or that there may be legal defenses available to it and/or other indemnified parties that are different from or additional to those available to the indemnifying party, the indemnified party or parties shall have the right to select separate counsel to assume such legal defenses and to otherwise participate in the defense of such action on behalf of such indemnified party or parties. Upon receipt of notice from the indemnifying party to such indemnified party of such indemnifying party’s election so to assume the defense of such action and approval by the indemnified party of counsel, the indemnifying party will not be liable to such indemnified party under this Section 8 for any legal or other expenses subsequently incurred by such indemnified party in connection with the defense thereof unless (i) the indemnified party shall have employed separate counsel in accordance with the

proviso to the preceding sentence (it being understood, however, that the indemnifying party shall not be liable for the expenses of more than one separate counsel (other than local counsel), reasonably approved by the indemnifying party (or by the Representatives in the case of Section 9), representing the indemnified parties who are parties to such action) or (ii) the indemnifying party shall not have employed counsel satisfactory to the indemnified party to represent the indemnified party within a reasonable time after notice of commencement of the action, in each of which cases the fees and expenses of counsel shall be at the expense of the indemnifying party.

     (e) Settlements. The indemnifying party under this Section 8 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 party agrees to indemnify the indemnified party against any loss, claim, damage, liability or expense by reason of such settlement or judgment. Notwithstanding the foregoing sentence, if at any time an indemnified party shall have requested an indemnifying party to reimburse the indemnified party for fees and expenses of counsel as contemplated by Section 8(d) hereof, the indemnifying party agrees that it shall be liable for any settlement of any proceeding effected without its written consent if (i) such settlement is entered into more than 30 days after receipt by such indemnifying party of the aforesaid request and (ii) such indemnifying party shall not have reimbursed the indemnified party in accordance with such request prior to the date of such settlement. No indemnifying party shall, without the prior written consent of the indemnified party, effect any settlement, compromise or consent to the entry of judgment in any pending or threatened action, suit or proceeding in respect of which any indemnified party is or could have been a party and indemnity was or could have been sought hereunder by such indemnified party, unless such settlement, compromise or consent (i) includes an unconditional release of such indemnified party from all liability on claims that are the subject matter of such action, suit or proceeding and (ii) does not include a statement as to or an admission of fault, culpability or a failure to act, by or on behalf of any indemnified party.

     (f) Indemnification for Directed Shares. In connection with the offer and sale of the Directed Shares, the Company agrees, promptly upon a request in writing, to indemnify and hold harmless the Underwriters from and against any and all losses, liabilities, claims, damages and expenses incurred by them as a result of the failure of the DSP Participants to pay for and accept delivery of Directed Shares which, by [7:30 A.M.] New York City time on the first business day after the date of this Agreement, were subject to a properly confirmed agreement to purchase. The Company agrees to indemnify and hold harmless the DSP Underwriter, its officer and employees, and each person, if any, who controls the DSP Underwriter within the meaning of the Securities Act or the Exchange Act against any loss, claim, damage, liability or expense, as incurred, to which such DSP Underwriter or such controlling person may become subject, which (i) is caused by any untrue statement or alleged untrue statement of a material fact contained in any material prepared by or with the consent of the Company for distribution to Participants in connection with the Directed Share Program or caused by any omission or alleged omission to state therein a material fact required to be stated therein or necessary to make the statements therein not misleading; (ii) is caused by the failure of any Participant to pay for and accept delivery of Directed Shares that such Participant agreed to purchase; (iii) arises out of or is based upon the violation of any applicable laws or regulations of foreign jurisdictions where Directed Shares have been offered or (iv) is related to, arising out of, or in connection with the Directed Share Program. The indemnity agreement set forth in this paragraph shall be in addition to any liabilities that the Company may otherwise have.

     Section 9. Contribution. If the indemnification provided for in Section 8 is for any reason unavailable to or otherwise insufficient to hold harmless an indemnified party in respect of any losses, claims, damages, liabilities or expenses referred to therein, then each indemnifying party shall contribute to the aggregate amount paid or payable by such indemnified party, as incurred, as a result of any losses, claims, damages, liabilities or expenses referred to therein (i) in such proportion as is appropriate to reflect the relative benefits received by the Company and the Selling Stockholder, on the one hand, and the Underwriters, on the other hand, from the offering of the Shares pursuant to this Agreement or (ii) if the allocation provided by clause (i) above is not permitted by applicable law, in such proportion as is appropriate to reflect not only the relative benefits referred to in clause (i) above but also the relative fault of the Company and the Selling Stockholder, on the one hand, and the Underwriters, on the other hand, in connection with the statements or omissions or inaccuracies in the representations and warranties herein which resulted in such losses, claims, damages, liabilities or expenses, as well as any other relevant equitable considerations. The relative benefits received by the Company and the Selling Stockholder, on the one hand, and the Underwriters, on the other hand, in connection with the offering of the Shares pursuant to this Agreement shall be deemed to be in the same respective proportions as the total net proceeds from the offering of the Shares pursuant to this Agreement (before deducting expenses) received by the Company and the Selling Stockholder, and the total underwriting discount received by the Underwriters, in each case as set forth on the front cover page of the Prospectus bear to the aggregate initial public offering price of the Shares as set forth on such cover. The relative fault of the Company and the Selling Stockholder, on the one hand, and the Underwriters, on the other hand, shall be determined by reference to, among other things, whether any such untrue or alleged untrue statement of a material fact or omission or alleged omission to state a material fact or any such inaccurate or alleged inaccurate representation or warranty relates to information supplied by the Company or the Selling Stockholder, on the one hand, or the Underwriters, on the other hand, and the parties’ relative intent, knowledge, access to information and opportunity to correct or prevent such statement or omission.

     The amount paid or payable by a party as a result of the losses, claims, damages, liabilities and expenses referred to above shall be deemed to include, subject to the limitations set forth in Section 8(c), any legal or other fees or expenses reasonably incurred by such party in connection with investigating or defending any action or claim. The provisions set forth in Section 8(c) with respect to notice of commencement of any action shall apply if a claim for contribution is to be made under this Section 9; provided, however, that no additional notice shall be required with respect to any action for which notice has been given under Section 8(c) for purposes of indemnification.

     The Company, the Selling Stockholder and the Underwriters agree that it would not be just and equitable if contribution pursuant to this Section 9 were determined by pro rata allocation (even if the Underwriters were treated as one entity for such purpose) or by any other method of allocation which does not take account of the equitable considerations referred to in this Section 9.

     Notwithstanding the provisions of this Section 9, no Underwriter shall be required to contribute any amount in excess of the underwriting commissions received by such Underwriter in connection with the Shares underwritten by it and distributed to the public. No person guilty of fraudulent misrepresentation (within the meaning of Section 11(f) of the Securities Act) shall be entitled to contribution from any person who was not guilty of such fraudulent misrepresentation. The Underwriters’ obligations to contribute pursuant to this Section 9 are several, and not joint, in proportion to their respective underwriting commitments as set forth opposite their names in Schedule A. For purposes of this Section 9, each director, officer, employee and agent of an Underwriter and each person, if any, who controls an Underwriter within the meaning of the Securities Act and the Exchange Act shall have the same rights to contribution as such Underwriter, and each director of the Company, each officer of the Company who signed the Registration Statement and each person, if any, who controls the Company within the meaning of the Securities Act and the Exchange Act shall have the same rights to contribution as the Company.

     Section 10. Default of One or More of the Several Underwriters. If, on the Closing Date or a Subsequent Closing Date, as the case may be, any one or more of the several Underwriters shall fail or refuse to purchase Shares that it or they have agreed to purchase hereunder on such date, and the aggregate number of Shares which such defaulting Underwriter or Underwriters agreed but failed or refused to purchase does not exceed 10% of the aggregate number of the Shares to be purchased on such date, the other Underwriters shall be obligated, severally, in the proportions that the number of Firm Shares set forth opposite their respective names on Schedule A bears to the aggregate number of Firm Shares set forth opposite the names of all such non-defaulting Underwriters, or in such other proportions as may be specified by the Representatives with the consent of the non-defaulting Underwriters, to purchase the Shares which such defaulting Underwriter or Underwriters agreed but failed or refused to purchase on such date. If, on the Closing Date or a Subsequent Closing Date, as the case may be, any one or more of the Underwriters shall fail or refuse to purchase Shares and the aggregate number of Shares with respect to which such default occurs exceeds 10% of the aggregate number of Shares to be purchased on such date, and arrangements satisfactory to the Representatives and the Company for the purchase of such Shares are not made within 48 hours after such default, this Agreement shall terminate without liability of any party to any other party except that the provisions of Section 4, Section 6, Section 8 and Section 9 shall at all times be effective and shall survive such termination. In any such case either the Representatives or the Company shall have the right to postpone the Closing Date or a Subsequent Closing Date, as the case may be, but in no event for longer than seven days in order that the required changes, if any, to the Registration Statement and the Prospectus or any other documents or arrangements may be effected.

     As used in this Agreement, the term “Underwriter” shall be deemed to include any person substituted for a defaulting Underwriter under this Section 10. Any action taken under this Section 10 shall not relieve any defaulting Underwriter from liability in respect of any default of such Underwriter under this Agreement.

     Section 11. Termination of this Agreement. Prior to the Closing Date this Agreement may be terminated by the Representatives by notice given to the Company and the Selling Stockholder if at any time (i) trading or quotation in any of the Company’s securities shall have been suspended or limited by the Commission or by the NYSE, or trading in securities generally

on the New York Stock Exchange shall have been suspended or limited, or minimum or maximum prices shall have been generally established on any of such stock exchanges by the Commission or the NASD; (ii) a general banking moratorium shall have been declared by federal or New York authorities or a material disruption in commercial banking or securities settlement or clearance services in the United States has occurred; or (iii) there shall have occurred any outbreak or escalation of national or international hostilities or any crisis or calamity, or any change in the United States or international financial markets, or any substantial change or development involving a prospective substantial change in United States’ or international political, financial or economic conditions, as in the judgment of the Representatives is material and adverse and makes it impracticable or inadvisable to market the Shares in the manner and on the terms described in the Prospectus or to enforce contracts for the sale of securities. Any termination pursuant to this Section 11 shall be without liability on the part of (a) the Company or the Selling Stockholder to any Underwriter, except that the Company shall be obligated to reimburse the expenses of the Representatives and the Underwriters pursuant to Sections 4 and 6 hereof or (b) any Underwriter to the Company or the Selling Stockholder.

     Section 12. No Advisory or Fiduciary Responsibility. Each of the Company and the Selling Stockholder acknowledges and agrees that: (i) the purchase and sale of the Securities pursuant to this Agreement, including the determination of the public offering price of the Securities and any related discounts and commissions, is an arm’s-length commercial transaction between the Company and the Selling Stockholder, on the one hand, and the several Underwriters, on the other hand, and the Company and the Selling Stockholder are capable of evaluating and understanding and understand and accept the terms, risks and conditions of the transactions contemplated by this Agreement; (ii) in connection with each transaction contemplated hereby and the process leading to such transaction each Underwriter is and has been acting solely as a principal and is not the financial advisor, agent or fiduciary of the Company, the Selling Stockholder, or their respective affiliates, stockholders, creditors or employees or any other party; (iii) no Underwriter has assumed or will assume an advisory, agency or fiduciary responsibility in favor of the Company or the Selling Stockholder with respect to any of the transactions contemplated hereby or the process leading thereto (irrespective of whether such Underwriter has advised or is currently advising the Company or the Selling Stockholder on other matters) and no Underwriter has any obligation to the Company or the Selling Stockholder with respect to the offering contemplated hereby except the obligations expressly set forth in this Agreement; (iv) the several Underwriters and their respective affiliates may be engaged in a broad range of transactions that involve interests that differ from those of the Company and the Selling Stockholder and that the several Underwriters have no obligation to disclose any of such interests by virtue of any advisory, agency or fiduciary relationship; and (v) the Underwriters have not provided any legal, accounting, regulatory or tax advice with respect to the offering contemplated hereby and the Company and the Selling Stockholder have consulted their own legal, accounting, regulatory and tax advisors to the extent they deemed appropriate.

     This Agreement supersedes all prior agreements and understandings (whether written or oral) between the Company, the Selling Stockholder and the several Underwriters, or any of them, with respect to the subject matter hereof. The Company and the Selling Stockholder hereby waive and release, to the fullest extent permitted by law, any claims that the Company and the Selling Stockholder may have against the several Underwriters with respect to any breach or alleged breach of agency or fiduciary duty.

     Section 13. Representations and Indemnities to Survive Delivery. The respective indemnities, agreements, representations, warranties and other statements of the Company, of its officers, of the Selling Stockholder and of the several Underwriters set forth in or made pursuant to this Agreement (i) will remain operative and in full force and effect, regardless of any (A) investigation, or statement as to the results thereof, made by or on behalf of any Underwriter, the officers or employees of any Underwriter, or the Company, the officers or employees of the Company, or any person controlling the Company, the Selling Stockholder or any person controlling the Selling Stockholder, as the case may be or (B) acceptance of the Shares and payment for them hereunder and (ii) will survive delivery of and payment for the Shares sold hereunder and any termination of this Agreement.

     Section 14. Notices. All communications hereunder shall be in writing and shall be mailed, hand delivered or telecopied and confirmed to the parties hereto as follows:

     If to the Representatives:

Banc of America Securities LLC
9 West 57^th Street
New York, NY 10019
Facsimile: (212)  ###-###-####
Attention: Syndicate Department

and

J.P. Morgan Securities Inc.
277 Park Avenue
Floor 14
New York, NY 10172
Facsimile: 212 ###-###-####
Attention: Equity Syndicate Desk

with a copy to:

Davis Polk & Wardwell
450 Lexington Avenue
New York, New York 10017
Facsimile: (212)  ###-###-####
Attention: Richard D. Truesdell, Jr.

     If to the Company:

Cal Dive International, Inc.
400 N. Sam Houston Parkway East
Suite 1000
Houston, TX 77060
Facsimile: (281)  ###-###-####
Attention: G. Kregg Lunsford

With a copy to:

Fulbright & Jaworski L.L.P.
1301 McKinney Street
Suite 5100
Houston, TX 77010
Facsimile: (713)  ###-###-####
Attention: Arthur H. Rogers

     If to the Selling Stockholder:

Helix Energy Solutions Group, Inc.
400 N. Sam Houston Parkway East
Suite 400
Houston, TX 77060
Facsimile: (713)  ###-###-####
Attention: Alisa B. Johnson

With a copy to:

Fulbright & Jaworski L.L.P.
1301 McKinney Street
Suite 5100
Houston, TX 77010
Facsimile: (713)  ###-###-####
Attention: Arthur H. Rogers

     Any party hereto may change the address for receipt of communications by giving written notice to the others.

     Section 15. Successors. This Agreement will inure to the benefit of and be binding upon the parties hereto, including any substitute Underwriters pursuant to Section 10 hereof, and to the benefit of (i) the Company, its directors, any person who controls the Company within the meaning of the Securities Act and the Exchange Act and any officer of the Company who signs the Registration Statement, (ii) the Selling Stockholder, (iii) the Underwriters, the officers, directors, employees and agents of the Underwriters, and each person, if any, who controls any Underwriter within the meaning of the Securities Act and the Exchange Act, and (iv) the

respective successors and assigns of any of the above, all as and to the extent provided in this Agreement, and no other person shall acquire or have any right under or by virtue of this Agreement. The term “successors and assigns” shall not include a purchaser of any of the Shares from any of the several Underwriters merely because of such purchase.

     Section 16. Partial Unenforceability. The invalidity or unenforceability of any Section, paragraph or provision of this Agreement shall not affect the validity or enforceability of any other Section, paragraph or provision hereof. If any Section, paragraph or provision of this Agreement is for any reason determined to be invalid or unenforceable, there shall be deemed to be made such minor changes (and only such minor changes) as are necessary to make it valid and enforceable.

     Section 17. Governing Law Provisions. THIS AGREEMENT SHALL BE GOVERNED BY AND CONSTRUED IN ACCORDANCE WITH THE LAWS OF THE STATE OF NEW YORK APPLICABLE TO AGREEMENTS MADE AND TO BE PERFORMED IN SUCH STATE.

     Section 18. General Provisions. This Agreement constitutes the entire agreement of the parties to this Agreement and supersedes all prior written or oral and all contemporaneous oral agreements, understandings and negotiations with respect to the subject matter hereof. This Agreement may be executed in two or more counterparts, each one of which shall be an original, with the same effect as if the signatures thereto and hereto were upon the same instrument. This Agreement may not be amended or modified unless in writing by all of the parties hereto, and no condition herein (express or implied) may be waived unless waived in writing by each party whom the condition is meant to benefit. The Section headings herein are for the convenience of the parties only and shall not affect the construction or interpretation of this Agreement.

     Each of the parties hereto acknowledges that it is a sophisticated business person who was adequately represented by counsel during negotiations regarding the provisions hereof, including, without limitation, the indemnification provisions of Section 8 and the contribution provisions of Section 9, and is fully informed regarding said provisions. Each of the parties hereto further acknowledges that the provisions of Sections 8 and 9 hereto fairly allocate the risks in light of the ability of the parties to investigate the Company, its affairs and its business in order to assure that adequate disclosure has been made in the Registration Statement, any preliminary prospectus and the Prospectus (and any amendments and supplements thereto), as required by the Securities Act and the Exchange Act.

     If the foregoing is in accordance with your understanding of our agreement, kindly sign and return to the Company the enclosed copies hereof, whereupon this instrument, along with all counterparts hereof, shall become a binding agreement in accordance with its terms.

     The foregoing Underwriting Agreement is hereby confirmed and accepted by the Representatives as of the date first above written.

BANC OF AMERICA SECURITIES LLC
J.P. MORGAN SECURITIES INC.
    Acting as Representatives of the
    several Underwriters named in
    the attached Schedule A.

By: Banc of America Securities LLC

By: J.P. Morgan Securities Inc.