EIGHTH AMENDMENT AND WAIVER TO CREDIT AND SECURITY AGREEMENT

Amendments to Loan Agreement. Subject to the satisfaction of the conditions set forth herein, the Loan Agreement is amended as follows:

Waiver. Subject to the terms, and the timely satisfaction of each of the conditions precedent in Section 3 and covenants in Section 5 of this Agreement, the Lender hereby waives the Existing Event of Default.

Conditions Precedent. Notwithstanding any contrary provision, this Amendment shall be effective on the first Business Day upon which all of the following conditions precedent have been satisfied (the “Effective Date”):

Reaffirmation of Loan Documents and Liens. Except as amended and modified hereby, any and all of the terms and provisions of the Loan Agreement and the other Loan Documents shall remain in full force and effect and are hereby in all respects ratified and confirmed by Borrower. Borrower hereby agrees that, except as expressly provided in this Amendment, the amendments and modifications herein contained shall in no manner affect or impair the liabilities, duties and obligations of Borrower under the Loan Agreement and the other Loan Documents or the Liens securing the payment and performance thereof. Borrower further confirms that the liens and security interests in the Collateral created under the Loan Documents secure, among other indebtedness, Borrower’s obligations under the Loan Documents, and all modifications, amendments, renewals, extensions, and restatements thereof.

Representations, Warranties, Covenants and Acknowledgments. As a material inducement for Lender to enter into this Amendment, Borrower hereby:

represents and warrants to Lender (with the knowledge and intent that Lender is relying upon the same in consenting to this Amendment) that as of the Effective Date, and after giving effect to the transactions contemplated by this Amendment: (a) all representations and warranties in the Loan Agreement and in all other Loan Documents are true and correct in all material respects, as though made on the date hereof, except to the extent that (i) any of them speak to a different specific date; or (ii) the facts or circumstances on which any of them were based have been changed by transactions or events not prohibited by the Loan Documents; (b) no Default or Event of Default exists under the Loan Documents or will exist after giving effect to this Amendment; (c) this Amendment has been duly authorized and approved by all necessary organizational action and requires the consent of no other Person, and is binding and enforceable against Borrower in accordance with its terms; and (d) the execution, delivery and performance of this Amendment in accordance with its terms, does not and will not, by the passage of time, the giving of notice, or otherwise: (i) require any governmental approval, other than such as have been obtained and are in full force and effect, or violate any applicable law relating to Borrower; (ii) conflict with, result in a breach of, or constitute a default under the Constituent Documents of Borrower thereof, or any indenture, agreement, or other instrument to which Borrower is a party or by which it or any of its properties may be bound; or (iii) result in or require the creation or imposition of any Lien upon or with respect to any property now owned or hereafter acquired by Borrower;

acknowledges and agrees that (i) except as expressly set forth herein, this Agreement does not and shall not create (nor shall Borrower rely upon the existence of or claim or assert that there exists) any obligation of Lender to consider or agree to any further consent, waiver or amendment with respect to any Loan Document and, in the event that Lender subsequently agrees to consider any further consent, waiver or amendment with respect to any Loan Document, neither this Agreement nor any other conduct of Lender shall be of any force or effect on Lender’s consideration or decision with respect thereto, and Lender shall not have any further obligation whatsoever to consider or agree to any further consent, waiver or amendment with respect to any Loan Document; (ii) this Agreement shall not represent an amendment, consent or waiver related to any future actions of Borrower and (iii) except as expressly set forth herein, Lender reserves all of its rights pursuant to the Loan Agreement and all other Loan Documents;

acknowledges and agrees that Lender’s agreement to waive and consent to the specific matters addressed in this Agreement, do not and shall not create (nor shall Borrower rely upon the existence of or claim or assert that there exists) any obligation of Lender to consider or agree to any further waivers, consents or amendments and, in the event that Lender subsequently agrees to consider any further waivers, consents or amendments, neither this Agreement nor any other conduct of Lender shall be of any force or effect on Lender’s consideration or decision with respect to any such requested waiver, consent or amendment;

acknowledges and agrees that this Agreement shall be deemed a Loan Document for all purposes under the Loan Agreement and the other Loan Documents;

acknowledges and agrees that Lender has and shall continue to have a valid, enforceable and perfected first-priority lien on and security interest in the Collateral granted to Lender pursuant to the Loan Documents or otherwise granted to or held by Lender;

acknowledges and agrees that, after giving effect to this Agreement, no right of offset, recoupment, defense, counterclaim, claim, cause of action or objection in favor of Borrower against Lender exists as of the Effective Date arising out of or with respect to (i) this Agreement, the Loan Agreement or any of the other Loan Documents or (ii) any other documents now or heretofore evidencing, securing or in any way relating to the foregoing; and

acknowledges and agrees that the Loan Agreement and the other Loan Documents are legal, valid, binding and enforceable against Borrower in accordance with their terms (except as may be limited by bankruptcy, insolvency, reorganization, moratorium or similar laws relating to or limiting creditors’ rights generally or by equitable principles relating to enforceability).

Fees, Costs and Expenses. Borrower agrees to pay promptly the reasonable fees and expenses of counsel to Lender for services rendered in connection with the preparation, negotiation, reproduction, execution, and delivery of this Amendment and all related documents; and

Miscellaneous.

This Amendment shall be deemed to constitute a Loan Document for all purposes and in all respects. Each reference in the Loan Agreement to “this Agreement,” “hereunder,” “hereof,” “herein” or words of like import, and each reference in the Loan Agreement or in any other Loan Document, or other agreements, documents or other instruments executed and delivered pursuant to the Loan Agreement to the “Loan Agreement”, shall mean and be a reference to the Loan Agreement as amended by this Amendment.

The Loan Documents shall remain unchanged and in full force and effect, except as provided in this Amendment, and are hereby ratified and confirmed. The execution, delivery, and effectiveness of this Amendment shall not, except as expressly provided herein, operate as a waiver of any rights of Lender under any Loan Document, nor constitute a waiver under any of the Loan Documents.

All of the terms and provisions of this Amendment shall bind and inure to the benefit of the parties hereto and their respective successors and assigns.

This Amendment may be executed in one or more counterparts and by different parties hereto in separate counterparts each of which when so executed and delivered shall be deemed an original, but all such counterparts together shall constitute but one and the same instrument; signature pages may be detached from multiple separate counterparts and attached to a single counterpart so that all signature pages are physically attached to the same document. Delivery of photocopies of the signature pages to this Amendment by facsimile or electronic mail shall be effective as delivery of manually executed counterparts of this Amendment.

THIS AMENDMENT, THE LOAN AGREEMENT, AND THE OTHER LOAN DOCUMENTS REPRESENT THE FINAL AGREEMENT BETWEEN THE PARTIES AND MAY NOT BE CONTRADICTED BY EVIDENCE OF PRIOR, CONTEMPORANEOUS OR ORAL AGREEMENTS OF THE PARTIES. THERE ARE NO UNWRITTEN ORAL AGREEMENTS BETWEEN THE PARTIES.

The headings, captions and arrangements used in this Amendment are, unless specified otherwise, for convenience only and shall not be deemed to limit, amplify or modify the terms of this Amendment, nor affect the meaning thereof.

Any provision of this Amendment held to be invalid, illegal or unenforceable in any jurisdiction shall, as to such jurisdiction, be ineffective to the extent of such invalidity, illegality or unenforceability without affecting the validity, legality and enforceability of the remaining provisions hereof; and the invalidity of a particular provision in a particular jurisdiction shall not invalidate such provision in any other jurisdiction.

This Amendment shall be construed in accordance with and governed by the laws of the State of Texas without regard to its principles of conflicts of laws.

The execution, delivery and effectiveness of this Amendment shall not operate as a waiver of any right, power or remedy of Lender under any of the Loan Documents, nor constitute a waiver of any provision of any of the Loan Documents