PLEDGE AND SECURITY AGREEMENT

EXHIBIT 10.5

PLEDGE AND SECURITY AGREEMENT

This PLEDGE AND SECURITY AGREEMENT, dated as of March 31, 2008 (as amended, supplemented, amended and restated or otherwise modified from time to time, this “ Security Agreement ”), is made by FLOTEK INDUSTRIES, INC., a Delaware corporation and each subsidiary of the Borrower signatory hereto (together with the Borrower, the “ Grantors ” and individually, a “ Grantor ”), in favor of WELLS FARGO BANK, N.A. (“ Wells Fargo ”), as administrative agent (together with any successor(s) and assign(s) thereto, in such capacity, the “ Administrative Agent ”) for each of the Secured Parties (as defined below).

WITNESSETH :

WHEREAS, pursuant to a Credit Agreement, dated as of March 31, 2008 (as amended, supplemented, amended and restated or otherwise modified from time to time, the “ Credit Agreement ”), among the Borrower, the lenders from time to time parties thereto (the “ Lenders ”), Wells Fargo Bank, N.A., as the Administrative Agent, as the issuing lender (in such capacity, the “ Issuing Lender ”), and as the swing line lender (in such capacity, the “ Swing Line Lender ”) have extended Commitments to the Borrower; and

WHEREAS, pursuant to the terms of the Credit Agreement, and in consideration of the loans made by the Lenders to the Borrower and the letters of credit issued by the Issuing Lender for the account of the Borrower or any Subsidiary of the Borrower (including certain of the Grantors), certain Grantors have executed and delivered certain Guaranty Agreement dated as of the date hereof (the “ Guaranty ”), guaranteeing the Secured Obligations (as defined in the Credit Agreement); and

WHEREAS, as a condition precedent to the execution of the Credit Agreement, each Grantor is required to execute and deliver this Security Agreement; and

WHEREAS, it is in the best interests of each Grantor to execute this Security Agreement inasmuch as each Grantor will derive substantial direct and indirect benefits from the transactions contemplated by the Credit Agreement, and in order to induce the Lenders or their Affiliates to enter into one or more Hedging Arrangements with the Borrower or any Subsidiary thereof, and in order to induce the Lenders or their Affiliates to provide Banking Services to the Borrower or any Subsidiary thereof, each Grantor is willing to execute and deliver and perform its obligations under this Security Agreement to secure its obligations under the Guaranty and the other Credit Documents;

NOW, THEREFORE, for good and valuable consideration, the receipt and sufficiency of which are hereby acknowledged, each Grantor agrees, for the benefit of each Secured Party, as follows:

ARTICLE I

DEFINITIONS

SECTION 1.1. Certain Terms . The following terms (whether or not underscored) when used in this Security Agreement, including its preamble and recitals, shall have the following meanings (such definitions to be equally applicable to the singular and plural forms thereof):

“ Administrative Agent ” is defined in the preamble .

“ Certificated Equipment ” means any Equipment the ownership of which is evidenced by a certificate of title or for which applicable Legal Requirement requires the issuance of a certificate of title.

“ Collateral ” is defined in Section 2.1 .

“ Collateral Account ” is defined in Section 4.3(b) .

“ Computer Hardware and Software Collateral ” means (a) all computer and other electronic data processing hardware, integrated computer systems, central processing units, memory units, display terminals, printers, features, computer elements, card readers, tape drives, hard and soft disk drives, cables, electrical supply hardware, generators, power equalizers, accessories and all peripheral devices and other related computer hardware, including all operating system software, utilities and application programs in whatsoever form, (b) software programs (including both source code, object code and all related applications and data files), designed for use on the computers and electronic data processing hardware described in clause (a)  above, (c) all firmware associated therewith, (d) all documentation (including flow charts, logic diagrams, manuals, guides, specifications, training materials, charts and pseudo codes) with respect to such hardware, software and firmware described in the preceding clauses (a)  through (c) , and (e) all rights with respect to all of the foregoing, including copyrights, licenses, options, warranties, service contracts, program services, test rights, maintenance rights, support rights, improvement rights, renewal rights and indemnifications and any substitutions, replacements, improvements, error corrections, updates, additions or model conversions of any of the foregoing.

“ Control Agreement ” means an authenticated record in form and substance reasonably satisfactory to the Administrative Agent, that provides for the Administrative Agent (for the ratable benefit of the Secured Parties) to have “control” (as defined in the UCC) over certain Collateral.

“ Copyright Collateral ” means all copyrights of any Grantor, registered or unregistered and whether published or unpublished, now or hereafter in force throughout the world including all of such Grantor’s rights, titles and interests in and to all copyrights registered in the United States Copyright Office or anywhere else in the world, including without limitation those copyrights referred to in Item C of Schedule III hereto, and registrations and recordings thereof and all applications for registration thereof, whether pending or in preparation, all copyright licenses, the right to sue for past, present and future infringements of any of the foregoing, all rights corresponding thereto, all extensions and renewals of any thereof and all Proceeds of the foregoing, including licenses, royalties, income, payments, claims, damages and Proceeds of suit, which are owned or licensed by such Grantor.

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“ Credit Agreement ” is defined in the first recital .

“ Distributions ” means all cash, cash dividends, stock dividends, other distributions, liquidating dividends, shares of stock resulting from (or in connection with the exercise of) stock splits, reclassifications, warrants, options, non-cash dividends, and all other distributions or payments (whether similar or dissimilar to the foregoing) on or with respect to, or on account of, any Pledged Share or Pledged Interest or other rights or interests constituting Collateral.

“ Equipment ” is defined in Section 2.1(a) .

“ Excluded Stock ” means 34% of the Equity Interests in each direct Foreign Subsidiary of the Grantors.

“ Foreign Subsidiary ” means any Subsidiary of Borrower that is a “controlled foreign corporation” as defined in Section 957 of the Code.

“ General Intangibles ” means all “general intangibles” and all “payment intangibles”, each as defined in the UCC, and shall include all interest rate or currency protection or hedging arrangements, all tax refunds, all licenses, permits, concessions and authorizations and all Intellectual Property Collateral (in each case, regardless of whether characterized as general intangibles under the UCC).

“ Governmental Approval ” is defined in Section 2.1(f) .

“ Grantor ” is defined in the preamble .

“ Indemnified Parties ” is defined in Section 6.4(a) .

“ Intellectual Property Collateral ” means, collectively, the Computer Hardware and Software Collateral, the Copyright Collateral, the Patent Collateral, the Trademark Collateral and the Trade Secrets Collateral.

“ Inventory ” is defined in Section 2.1(b) .

“ Lenders ” is defined in the first recital .

“ Obligor ” means the Borrower or any Guarantor.

“ Patent Collateral ” means (a) all inventions and discoveries, whether patentable or not, all letters patent and applications for letters patent throughout the world, including without limitation those patents referred to in Item A of Schedule III hereto, and any patent applications in preparation for filing, (b) all reissues, divisions, continuations, continuations-in-part, extensions, renewals and reexaminations of any of the items described in clause (a) , (c) all patent licenses, and other agreements providing any Grantor with the right to use any items of the type referred to in clauses (a)  and (b)  above, and (d) all Proceeds of, and rights associated with, the foregoing (including licenses, royalties income, payments, claims, damages and Proceeds of infringement suits), the right to sue third parties for past, present or future infringements of any patent or patent application, and for breach or enforcement of any patent license.

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“ Permitted Liens ” means all Liens permitted by Section 6.2 of the Credit Agreement or any other Credit Document.

“ Pledged Interests ” means all Equity Interests or other ownership interests of any Pledged Interests Issuer described in Item A of Schedule I hereto; all registrations, certificates, articles, by-laws, regulations, limited liability company agreements or constitutive agreements governing or representing any such interests; all options and other rights, contractual or otherwise, at any time existing with respect to such interests, as such interests are amended, modified, or supplemented from time to time, and together with any interests in any Pledge Interests Issuer taken in extension or renewal thereof or substitution therefor.

“ Pledged Interests Issuer ” means each Person identified in Item A of Schedule I hereto as the issuer of the Pledged Shares or the Pledged Interests identified opposite the name of such Person.

“ Pledged Note Issuer ” means each Person identified in Item B of Schedule I hereto as the issuer of the Pledged Notes identified opposite the name of such Person.

“ Pledged Notes ” means all promissory notes of any Pledged Note Issuer evidencing Debt incurred pursuant to Section 6.1(b) of the Credit Agreement in form and substance reasonably satisfactory to the Administrative Agent delivered by any Grantor to the Administrative Agent as Pledged Property hereunder, as such promissory notes, in accordance with Section 7.3 , are amended, modified or supplemented from time to time and together with any promissory note of any Pledged Note Issuer taken in extension or renewal thereof or substitution therefor.

“ Pledged Property ” means all Pledged Notes, Pledged Interests, Pledged Shares, all assignments of any amounts due or to become due with respect to the Pledged Interests or the Pledged Shares, all other instruments which are now being delivered by any Grantor to the Administrative Agent or may from time to time hereafter be delivered by any Grantor to the Administrative Agent for the purpose of pledge under this Security Agreement or any other Credit Document, and all proceeds of any of the foregoing.

“ Pledged Shares ” means all Equity Interests of any Pledged Interests Issuer identified under Item A of Schedule I which are delivered by any Grantor to the Administrative Agent as Pledged Property hereunder.

“ Receivables ” is defined in Section 2.1(c) .

“ Related Contracts ” is defined in Section 2.1(c) .

“ Secured Obligations ” is defined in Section 2.2 .

“ Secured Parties ” has the meaning set forth in the Credit Agreement.

“ Securities Act ” is defined in Section 6.2(a) .

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“ Security Agreement ” is defined in the preamble .

“ Termination Date ” means the date that all Secured Obligations (other than contingent Obligations with respect to indemnity and reimbursement of expenses as to which no claim has been made as of the time of determination) have been paid in full in cash, all Letters of Credit have been terminated or expired (or been cash collateralized to the satisfaction of the Issuing Lender), all Hedging Arrangements with any Secured Party have been terminated or novated to a counterparty that is not Secured Party, and all Commitments shall have terminated.

“ Trademark Collateral ” means (a) (i) all trademarks, trade names, corporate names, company names, business names, fictitious business names, trade styles, service marks, certification marks, collective marks, logos and other source or business identifiers, and all goodwill of the business associated therewith, now existing or hereafter adopted or acquired, including without limitation those trademarks referred to in Item B of Schedule III hereto, whether currently in use or not, all registrations and recordings thereof and all applications in connection therewith, whether pending or in preparation for filing, including registrations, recordings and applications in the United States Patent and Trademark Office or in any office or agency of the United States of America, or any State thereof or any other country or political subdivision thereof or otherwise, and all common-law rights relating to the foregoing, and (ii) the right to obtain all reissues, extensions or renewals of the foregoing (collectively referred to as the “ Trademark ”), (b) all trademark licenses for the grant by or to any Grantor of any right to use any trademark, (c) all of the goodwill of the business connected with the use of, and symbolized by the items described in, clause (a) , and to the extent applicable clause (b) , (d) the right to sue third parties for past, present and future infringements of any Trademark Collateral described in clause (a)  and, to the extent applicable, clause (b) , and (e) all Proceeds of, and rights associated with, the foregoing, including any claim by any Grantor against third parties for past, present or future infringement or dilution of any Trademark, Trademark registration or Trademark license, or for any injury to the goodwill associated with the use of any such Trademark or for breach or enforcement of any Trademark license and all rights corresponding thereto throughout the world.

“ Trade Secrets Collateral ” means all common law and statutory trade secrets and all other confidential, proprietary or useful information and all know-how obtained by or used in or contemplated at any time for use in the business of any Grantor, (all of the foregoing being collectively called a “ Trade Secret ”), including all Documents and things embodying, incorporating or referring in any way to such Trade Secret, all Trade Secret licenses, and including the right to sue for and to enjoin and to collect damages for the actual or threatened misappropriation of any Trade Secret and for the breach or enforcement of any such Trade Secret license.

“ UCC ” means the Uniform Commercial Code, as in effect in the State of Texas, as the same may be amended from time to time.

SECTION 1.2. Credit Agreement Definitions . Unless otherwise defined herein or the context otherwise requires, terms used in this Security Agreement, including its preamble and recitals, have the meanings provided in the Credit Agreement.

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SECTION 1.3. UCC Definitions . Unless otherwise defined herein or the context otherwise requires, terms for which meanings are provided in the UCC are used in this Security Agreement, including its preamble and recitals, with such meanings.

ARTICLE II

SECURITY INTEREST

SECTION 2.1. Grant of Security Interest . Each Grantor hereby pledges, hypothecates, assigns, charges, mortgages, delivers, and transfers to the Administrative Agent, for its benefit and the ratable benefit of each of the Secured Parties, and hereby grants to the Administrative Agent, for its benefit and the ratable benefit of each of the other Secured Parties, a continuing security interest in all of such Grantor’s following property, whether now or hereafter existing, owned or acquired by such Grantor, and wherever located, (collectively, the “ Collateral ”):

(a) all equipment in all of its forms (including but not limited to drilling platforms and rigs and remotely operated vehicles, trenchers, and other equipment used by any Grantor, vehicles, motor vehicles, rolling stock, vessels, aircraft), of such Grantor, wherever located, and all machinery, apparatus, installation facilities and other tangible personal property, and all parts thereof and all accessions, additions, attachments, improvements, substitutions, replacements and proceeds thereto and therefore (any and all of the foregoing being the “ Equipment ”);

(b) all inventory in all of its forms of such Grantor, wherever located, including (i) all oil, gas, or other hydrocarbons and all products and substances derived therefrom, all raw materials and work in process therefore, finished goods thereof, and materials used or consumed in the manufacture or production thereof, (ii) all goods in which such Grantor has an interest in mass or a joint or other interest or right of any kind (including goods in which such Grantor has an interest or right as consignee), and (iii) all goods which are returned to or repossessed by such Grantor, and all accessions thereto, products thereof and documents therefore (any and all such inventory, materials, goods, accessions, products and documents being the “ Inventory ”);

(c) all accounts, money, payment intangibles, deposit accounts (including the Collateral Accounts and all amounts on deposit therein and all cash equivalent investments carried therein and all proceeds thereof), contracts, contract rights, all rights constituting a right to the payment of money, chattel paper, documents, documents of title, instruments, letters of credit, letter-of-credit rights and General Intangibles of such Grantor, whether or not earned by performance or arising out of or in connection with the sale or lease of goods or the rendering of services, including all moneys due or to become due in repayment of any loans or advances, and all rights of such Grantor now or hereafter existing in and to all security agreements, guaranties, leases, agreements and other contracts securing or otherwise relating to any such accounts, money, payment intangibles, deposit accounts, contracts, contract rights, rights to the payment of money, chattel paper, documents, documents of title, instruments, letters of credit, letter-of-credit rights and General Intangibles (any and all such accounts, money, payment intangibles, deposit accounts, contracts, contract rights, rights to the payment of money, chattel paper,

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documents, documents of title, instruments, letters of credit, letter-of-credit rights and General Intangibles being the “ Receivables ”, and any and all such security agreements, guaranties, leases, agreements and other contracts being the “ Related Contracts ”);

(d) all Intellectual Property Collateral of such Grantor;

(e) all books, correspondence, credit files, records, invoices, tapes, cards, computer runs, writings, data bases, information in all forms, paper and documents and other property relating to, used or useful in connection with, evidencing, embodying, incorporating or referring to, any of the foregoing in this Section 2.1 ;

(f) all governmental approvals, permits, licenses, authorizations, consents, rulings, tariffs, rates, certifications, waivers, exemptions, filings, claims, orders, judgments and decrees (each a “ Governmental Approval ”), to the extent a security interest may be granted therein; provided that any Governmental Approval that by its terms or by operation of law would be void, voidable, terminable or revocable if mortgaged, pledged or assigned hereunder is expressly excepted and excluded from the Liens and terms of this Security Agreement, including the grant of security interest in this Section 2.1 ;

(g) all interest rate swap agreements, interest rate cap agreements and interest rate collar agreements, and all other agreements or arrangements designed to protect such Grantor against fluctuations in interest rates or currency exchange rates and all commodity hedge, commodity swap, exchange, forward, future, floor, collar or cap agreements, fixed price agreements and all other agreements or arrangements designed to protect such Grantor against fluctuations in commodity prices (including, without limitation, any Hedging Arrangement);

(h) to the extent not included in the foregoing, all bank accounts, investment property, fixtures and supporting obligations;

(i) all Pledged Interests, Pledged Notes, Pledged Shares and any other Pledged Property whether now or hereafter delivered to the Administrative Agent in connection with this Security Agreement and all Distributions, interest, and other payments and rights with respect to such Pledged Property;

(j) all accessions, substitutions, replacements, products, offspring, rents, issues, profits, returns, income and proceeds of and from any and all of the foregoing Collateral (including proceeds which constitute property of the types described in clauses (a) , (b) , (c) , (d) , (e) , (f) , (g) , (h), and (i)  and proceeds deposited from time to time in any lock boxes of such Grantor, and, to the extent not otherwise included, all payments and proceeds under insurance (whether or not the Administrative Agent is the loss payee thereof), or any condemnation award, indemnity, warranty or guaranty, payable by reason of loss or damage to or otherwise with respect to any of the Collateral); and

(k) all of such Grantor’s other property and rights of every kind and description and interests therein, including without limitation, all other “ Accounts ”, “ Certificated Securities ”, “ Chattel Paper ”, “ Commercial Tort Claims ”, “ Commodity

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Accounts ”, “ Commodity Contracts ”, “ Deposit Accounts ”, “ Documents ”, “ Equipment ”, “ Fixtures ”, “ General Intangibles ”, “ Goods ”, “ Instruments ”, “ Inventory ”, “ Investment Property ”, “ Letter of Credit Rights ”, “ Letters of Credit ”, “Money”, “ Proceeds ”, “ Securities ”, “ Securities Account ”, “ Security Entitlements ”, “ Supporting Obligations ” and “ Uncertificated Securities ” as such terms are defined in the UCC;

Notwithstanding anything to the contrary contained herein, Excluded Equity shall be excluded from the lien and security interest granted hereunder (and shall, as applicable, not be included as “Collateral”, General Intangibles”, “Investment Property”, or “Pledged Property” for the purposes hereof.

SECTION 2.2. Security for Obligations . This Security Agreement, and the Collateral in which the Administrative Agent for the benefit of the Secured Parties is granted a security interest hereunder by each Grantor, secures the prompt and indefeasible payment in full and performance of all Secured Obligations (as defined in the Credit Agreement) of each Grantor and each other Obligor now or hereafter existing, whether for principal, interest, costs, fees, expenses or otherwise, howsoever created, arising or evidenced, whether direct or indirect, primary or secondary, fixed or absolute or contingent, joint or several, or now or hereafter existing under this Security Agreement and each other Credit Document to which it is or may become a party (all such Secured Obligations and other obligations of each Grantor being the “ Secured Obligations ”).

SECTION 2.3. Continuing Security Interest; Transfer of Loans; Reinstatement . This Security Agreement shall create continuing security interests in the Collateral and shall (a) remain in full force and effect until the Termination Date, (b) be binding upon each Grantor and its successors, transferees and assigns, and (c) inure, together with the rights and remedies of the Administrative Agent hereunder, to the benefit of the Administrative Agent and each other Secured Party and its respective successors, transferees and assigns, subject to the limitations as set forth in the Credit Agreement. Without limiting the generality of the foregoing clause (c) , any Lender may assign or otherwise transfer (in whole or in part) any Note or any Advance held by it as provided in Section 9.7 of the Credit Agreement, and any successor or assignee thereof shall thereupon become vested with all the rights and benefits in respect thereof granted to such Secured Party under any Credit Document (including this Security Agreement), or otherwise, subject, however, to any contrary provisions in such assignment or transfer, and as applicable to the provisions of Section 9.7 and Article 8 of the Credit Agreement. If at any time all or any part of any payment theretofore applied by the Administrative Agent or any Secured Party to any of the Secured Obligations is or must be rescinded or returned by the Administrative Agent or any such Secured Party for any reason whatsoever (including, without limitation, the insolvency, bankruptcy, reorganization or other similar proceeding of any Grantor or any other Person), such Secured Obligations shall, for purposes of this Security Agreement, to the extent that such payment is or must be rescinded or returned, be deemed to have continued to be in existence, notwithstanding any application by the Administrative Agent or such Secured Party or any termination agreement or release provided to any Grantor, and this Security Agreement shall continue to be effective or reinstated, as the case may be, as to such Secured Obligations, all as though such application by the Administrative Agent or such Secured Party had not been made .

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SECTION 2.4. Grantors Remain Liable . Anything herein to the contrary notwithstanding, (a) each Grantor shall remain liable under the contracts and agreements included in the Collateral to the extent set forth therein, and will perform all of its duties and obligations under such contracts and agreements to the same extent as if this Security Agreement had not been executed, (b) the exercise by the Administrative Agent of any of its rights hereunder shall not release any Grantor from any of its duties or obligations under any such contracts or agreements included in the Collateral, and (c) neither the Administrative Agent nor any other Secured Party shall have any obligation or liability under any contracts or agreements included in the Collateral by reason of this Security Agreement, nor shall the Administrative Agent nor any Secured Party be obligated to perform any of the obligations or duties of any Grantor thereunder or to take any action to collect or enforce any claim for payment assigned hereunder.

SECTION 2.5. Delivery of Pledged Property .

(a) Other than as provided in the last sentence of Section 4.5 below, all certificates or instruments representing or evidencing any Collateral, including all Pledged Shares and Pledged Notes, shall be delivered to and held by or on behalf of (or in the case of the Pledged Notes, endorsed to the order of) the Administrative Agent pursuant hereto, shall be in suitable form for transfer by delivery, and shall be accompanied by all necessary indorsements or instruments of transfer or assignment, duly executed in blank.

(b) To the extent any of the Collateral constitutes an “uncertificated security” (as defined in Section 8-102(a)(18) of the UCC) or a “security entitlement” (as defined in Section 8-102(a)(17) of the UCC), the applicable Grantor shall take and cause the appropriate Person (including any issuer, entitlement holder or securities intermediary thereof) to take all actions necessary to grant “control” (as defined in 8-106 of the UCC) to the Administrative Agent (for the ratable benefit of the Secured Parties) over such Collateral.

SECTION 2.6. Distributions on Pledged Shares . In the event that any Distribution with respect to any Pledged Shares or Pledged Interests pledged hereunder is permitted to be paid (in accordance with Section 6.9 of the Credit Agreement), such Distribution or payment may be paid directly to the applicable Grantor. If any Distribution is made in contravention of Section 6.9 of the Credit Agreement, the applicable Grantor shall hold the same segregated and in trust for the Administrative Agent until paid to the Administrative Agent in accordance with Section 4.1(e) .

SECTION 2.7. Security Interest Absolute, etc . This Security Agreement shall in all respects be a continuing, absolute, unconditional and irrevocable grant of security interest, and shall remain in full force and effect until the Termination Date. All rights of the Secured Parties and the security interests granted to the Administrative Agent (for its benefit and the ratable benefit of each other Secured Party) hereunder, and all obligations of each Grantor hereunder, shall, in each case, be absolute, unconditional and irrevocable irrespective of (a) any lack of validity, legality or enforceability of any Credit Document, (b) the failure of any Secured Party (i) to assert any claim or demand or to enforce any right or remedy against any Grantor or any other Person under the provisions of any Credit Document or otherwise, or (ii) to exercise any

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right or remedy against any other guarantor of, or collateral securing, any Secured Obligations, (c) any change in the time, manner or place of payment of, or in any other term of, all or any part of the Secured Obligations, or any other extension, compromise or renewal of any Secured Obligations, (d) any reduction, limitation, impairment or termination of any Secured Obligations (except in the case of the occurrence of the Termination Date) for any reason, including any claim of waiver, release, surrender, alteration or compromise, and shall not be subject to (and each Grantor hereby waives any right to or claim of) any defense or setoff, counterclaim, recoupment or termination whatsoever by reason of the invalidity, illegality, nongenuineness, irregularity, compromise, unenforceability of, or any other event or occurrence affecting, any Secured Obligations or otherwise, (e) any amendment to, rescission, waiver, or other modification of, or any consent to or departure from, any of the terms of any Credit Document, (f) any addition, exchange or release of any Collateral of the Secured Obligations, or any surrender or non-perfection of any collateral, or any amendment to or waiver or release or addition to, or consent to or departure from, any other guaranty held by any Secured Party securing any of the Secured Obligations, or (g) any other circumstance which might otherwise constitute a defense available to, or a legal or equitable discharge of, any Grantor or any other Obligor, any surety or any guarantor.

SECTION 2.8. Waiver of Subrogation . Until one year and one day after the Termination Date, each Grantor hereby irrevocably waives any claim or other rights which it may now or hereafter acquire against any Obligor that arise from the existence, payment, performance or enforcement of such Grantor’s obligations under this Security Agreement or any other Credit Document, including any right of subrogation, reimbursement, exoneration or indemnification, any right to participate in any claim or remedy of any Secured Party against any Obligor or any collateral which any Secured Party now has or hereafter acquires, whether or not such claim, remedy or right arises in equity, or under contract, statute or common law, including the right to take or receive from any Obligor, directly or indirectly, in cash or other property or by set-off or in any manner, payment or security on account of such claim or other rights. If any amount shall be paid to any Grantor in violation of the preceding sentence and the Secured Obligations shall not have been indefeasibly paid in full in cash or all Commitments and all other commitments by any Secured Party to any Obligor have not been terminated or all Letters of Credit have not terminated or expired, then such amount shall be deemed to have been paid to such Grantor for the benefit of, and held in trust for, the Administrative Agent (on behalf of the Secured Parties), and shall forthwith be paid to the Administrative Agent to be credited and applied upon the Secured Obligations, whether matured or unmatured. Each Grantor acknowledges that it will receive direct and indirect benefits from the financing arrangements contemplated by the Credit Agreement and that the waiver set forth in this Section 2.8 is knowingly made in contemplation of such benefits.

SECTION 2.9. Election of Remedies . Except as otherwise provided in the Credit Agreement, if any Secured Party may, under applicable law, proceed to realize its benefits under any of this Security Agreement or the other Credit Documents giving any Secured Party a lien upon any Collateral, either by judicial foreclosure or by non-judicial sale or enforcement, such Secured Party may, at its sole option, determine which of its remedies or rights it may pursue without affecting any of its rights and remedies under this Security Agreement. If, in the exercise of any of its rights and remedies, any Secured Party shall forfeit any of its rights or remedies, including its right to enter a deficiency judgment against any Obligor or any other

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Person, whether because of any applicable laws pertaining to “election of remedies” or the like, each Grantor hereby consents to such action by such Secured Party and waives any claim based upon such action, even if such action by such Secured Party shall result in a full or partial loss of any rights of subrogation that such Grantor might otherwise have had but for such action by such Secured Party.

ARTICLE III

REPRESENTATIONS AND WARRANTIES

In order to induce the Secured Parties to enter into the Credit Agreement and make Advances thereunder and for the Issuing Lender to issue Letters of Credit thereunder, and to induce the Secured Parties to enter into Hedging Arrangements, each Grantor represents and warrants unto each Secured Party, as at date hereof and at the date of each pledge and delivery hereunder by such Grantor to the Administrative Agent of any Collateral (including each pledge and delivery of any Pledged Shares or Pledged Notes), as set forth in this Article.

SECTION 3.1. Validity, etc . This Security Agreement and the other Credit Documents to which such Grantor is a party constitutes the legal, valid and binding obligations of such Grantor, enforceable against such Grantor in accordance with their respective terms (except, in any case, as such enforceability may be limited by applicable bankruptcy, insolvency, reorganization or similar laws affecting creditors’ rights generally and by principles of equity).

SECTION 3.2. Ownership, No Liens, etc . Such Grantor is the legal and beneficial owner of, and has good and defensible title to (and has full right and authority to pledge, grant and assign) the Collateral, free and clear of all Liens, except for any Lien (a) granted pursuant to this Security Agreement in favor of the Administrative Agent, or (b) that is a Permitted Lien. No effective UCC financing statement or other filing similar in effect covering all or any part of the Collateral is on file in any recording office, except those filed in favor of the Administrative Agent relating to this Security Agreement, Permitted Liens or as to which a duly authorized termination statement relating to such UCC financing statement or other instrument has been delivered to the Administrative Agent on the Effective Date. This Security Agreement creates a valid security interest in the Collateral, securing the payment of the Secured Obligations, and, except for the proper filing of the applicable filing statements with the Secretary of State of the State of Delaware, all filings and other actions necessary to perfect and protect such security interest have been duly taken and such security interest shall be a first priority security interest.

SECTION 3.3. As to Equity Interests of the Subsidiaries, Investment Property .

(a) With respect to the Pledged Shares, all such Pledged Shares are duly authorized and validly issued, fully paid and non-assessable, and represented by a certificate.

(b) With respect to the Pledged Interests, no such Pledged Interests (i) are dealt in or traded on securities exchanges or in securities markets, (ii) expressly provide that such Pledged Interests are securities governed by Article 8 of the UCC, or (iii) are held in a Securities Account, except, with respect to this clause (b) , Pledged Interests (A)

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for which the Administrative Agent is the registered owner or (B) with respect to which the Pledged Interests Issuer has agreed in an authenticated record with such Grantor and the Administrative Agent to comply with any instructions of the Administrative Agent without the consent of such Grantor.

(c) Such Grantor has delivered all Certificated Securities constituting Collateral held by such Grantor on the Effective Date to the Administrative Agent, together with duly executed undated blank stock powers, or other equivalent instruments of transfer reasonably acceptable to the Administrative Agent.

(d) With respect to Uncertificated Securities constituting Collateral owned by such Grantor, such Grantor has caused the Pledged Interests Issuer or other issuer thereof either (i) to register the Administrative Agent as the registered owner of such security, or (ii) to agree in an authenticated record with such Grantor and the Administrative Agent that such Pledged Interests Issuer or other issuer will comply with instructions with respect to such security originated by the Administrative Agent without further consent of such Grantor.

(e) The percentage of the issued and outstanding Pledged Shares and Pledged Interests of each Issuer pledged by such Grantor hereunder is as set forth on Schedule I . All of the Pledged Shares and Pledged Interests constitute one hundred percent (100%) of such Grantor’s interest in the applicable Pledged Interests Issuer and the percentage of the total membership, partnership and/or other equity interests in the Pledged Interests Issuer indicated on Schedule I .

(f) Such Grantor has no outstanding rights, rights to subscribe, options, warrants or convertible securities outstanding or any other rights outstanding whereby any Person would be entitled to acquire shares, member interests or units of any Pledged Interest Issuer.

(g) In the case of each Pledged Note, all of such Pledged Notes have been duly authorized, executed, endorsed, issued and delivered, and are the legal, valid and binding obligation of the issuers thereof, and are not in default.

SECTION 3.4. Grantor’s Name, Location, etc .

(a) (i) the jurisdiction in which such Grantor is located for purposes of Sections 9.301 and 9.307 of the UCC is set forth in Item A-1 of Schedule II hereto, (ii) the place of business of such Grantor or, if such Grantor has more than one place of business, the chief executive office of such Grantor and the office where such Grantor keeps its records concerning the Receivables, and all originals of all chattel paper which evidence Receivables, is set forth in Item A-2 of Schedule II hereto, and (iii) such Grantor’s federal taxpayer identification number is set forth in Item A-3 of Schedule II hereto.

(b) Such Grantor has not been known by any legal name different from the one set forth on the signature page hereto, nor has such Grantor been the subject of any merger or other corporate reorganization, except as set forth in Item B of Schedule II hereto.

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(c) Such Grantor is not a party to any federal, state or local government contract except contracts with Mineral Management Services or other Federal leases.

(d) Such Grantor does not maintain any Deposit Accounts, Securities Accounts or Commodity Accounts with any Person, in each case, except as set forth on Item C of Schedule II .

(e) None of the Receivables is evidenced by a promissory note or other instrument other than a promissory note or instrument that has been delivered to the Administrative Agent (with appropriate endorsements).

(f) Such Grantor is not the beneficiary of any Letters of Credit, except as set forth on Item D of Schedule II (as such schedule may be amended or supplemented from time to time) hereto and such Grantor has obtained the consent of each issuer of any Letter of Credit with a stated amount in excess of $250,000 to the assignment of the proceeds of the letter of credit to the Administrative Agent.

(g) Such Grantor does not have Commercial Tort Claims (i) in which a suit has been filed by such Grantor, and (ii) where the amount of damages reasonably expected to be claimed exceeds $250,000, except as set forth on Item E of Schedule II .

(h) The name set forth on the signature page attached hereto is the true and correct legal name (as defined in the UCC) of such Grantor.

(i) Such Grantor has obtained a legal, valid and enforceable consent of each issuer of any Letter of Credit with a stated amount in excess of $250,000 to the assignment of the Proceeds of such Letter of Credit to the Administrative Agent and has not consented to, and is otherwise aware of, any Person (other than the Administrative Agent pursuant hereto) having control (within the meaning of Section 9.104 of the UCC) over, or any other interest in any of such Grantor’s rights in respect thereof.

SECTION 3.5. Possession of Inventory, Control; etc . Such Grantor (a) has exclusive possession and control, subject to Permitted Liens, of the Equipment and Inventory, and (b) is the sole entitlement holder of its Accounts and no other Person (other than the Administrative Agent pursuant to this Security Agreement or any other Person with respect to Permitted Liens) has “control” or “possession” of, or any other interest in, any of its Accounts or any other securities or property credited thereto except as permitted pursuant to this Security Agreement.

SECTION 3.6. Negotiable Documents, Instruments and Chattel Paper . Such Grantor has, contemporaneously herewith, delivered to the Administrative Agent possession of all originals of all Documents, Instruments, Promissory Notes, Pledged Notes and tangible Chattel Paper owned or held by such Grantor (duly endorsed, in blank, if requested by the Administrative Agent).

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SECTION 3.7. Intellectual Property Collateral . Such Grantor represents that except for any Patent Collateral, Trademark Collateral, and Copyright Collateral specified in Item A , Item B and Item C , respectively, of Schedule III hereto, and any and Trade Secrets Collateral, such Grantor owns and has no interests in any Intellectual Property Collateral as of the date hereof, other than the Computer Hardware and Software Collateral. Such Grantor further represents and warrants that, with respect to all Intellectual Property Collateral (a) such Intellectual Property Collateral is valid, subsisting, unexpired and enforceable and has not been abandoned or adjudged invalid or unenforceable, in whole or in part except as could not reasonably be expected to have a Material Adverse Effect, (b) such Grantor is the sole and exclusive owner of the entire and unencumbered right, title and interest in and to such Intellectual Property Collateral, subject to Permitted Liens, and no claim has been made that the use of such Intellectual Property Collateral does or may, conflict with, infringe, misappropriate, dilute, misuse or otherwise violate any of the rights of any third party in any material respects, (c) such Grantor has made all necessary filings and recordations to protect its interest in such material Intellectual Property Collateral, including recordations of any of its interests in the Patent Collateral and Trademark Collateral in the United States Patent and Trademark Office and in corresponding offices throughout the world, and its claims to the Copyright Collateral in the United States Copyright Office and in corresponding offices throughout the world, and, to the extent necessary, has used proper statutory notice in connection with its use of any material patent, Trademark and copyright in any of the Intellectual Property Collateral, (d) such Grantor has taken all reasonable steps to safeguard its Trade Secrets and to its knowledge none of the Trade Secrets of such Grantor has been used, divulged, disclosed or appropriated for the benefit of any other Person other than such Grantor, (e) to such Grantor’s knowledge, no third party is infringing upon any material Intellectual Property owned or used by such Grantor in any material respect, or any of its respective licensees, (f) no settlement or consents, covenants not to sue, nonassertion assurances, or releases have been entered into by such Grantor or to which such Grantor is bound that adversely affects its rights to own or use any Intellectual Property except as would not reasonably have a Material Adverse Effect, (g) such Grantor has not made a previous assignment, sale, transfer or agreement constituting a present or future assignment, sale or transfer of any Intellectual Property for purposes of granting a security interest or as Collateral that has not been terminated or released, (h) such Grantor uses adequate standards of quality in the manufacture, distribution, and sale of all products sold and in the provision of all services rendered under or in connection with any Trademarks and has taken all commercially reasonable action necessary to insure that any licensees of any Trademarks owned by such Grantor use such adequate standards of quality, (i) the consummation of the transactions contemplated by the Credit Agreement and this Security Agreement will not result in the termination or material impairment of any material portion of the Intellectual Property Collateral, and (j) such Grantor owns directly or is entitled to use by license or otherwise, any patents, trademarks, tradenames, Trade Secrets, copyrights, mask works, licenses, technology, know-how, processes and rights with respect to any of the foregoing used in, and necessary for the conduct of such Grantor’s business in any material respect.

SECTION 3.8. Authorization, Approval, etc . Except as have been obtained or made and are in full force and effect, no Governmental Approval, authorization, approval or other action by, and no notice to or filing with, any Governmental Authority or any other third party is required either (a) for the grant by such Grantor of the security interest granted hereby or for the execution, delivery and performance of this Security Agreement by such Grantor, (b) for the

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perfection or maintenance of the security interests hereunder including the first priority (subject to Permitted Liens) nature of such security interest (e