Common use of No Further Agreements Clause in Contracts

No Further Agreements. 60 EXHIBITS Exhibit A - Form of Acquisition Certificate Exhibit B - Form of Assignment and Acceptance Exhibit C - Form of Borrowing Base and Compliance Certificate Exhibit D - Form of Continuation/Conversion Request Exhibit E - Form of Guaranty Exhibit F - Form of Revolving Loan Borrowing Request Exhibit G - Form of Revolving Loan Note Exhibit H - Closing Documents List Exhibit I - Form of Joinder Agreement Schedule I - Administrative Information (Borrower; Agent; Banks) Schedule II - Disclosures (Existing Debt and Existing Subsidiaries) CREDIT AGREEMENT This Credit Agreement dated as of December 31, 1997, is among HydroChem Industrial Services, Inc., a Delaware corporation, as Borrower, the financial institutions named herein, as Banks, and NationsBank of Texas, N.A., as Agent for the Banks. The parties hereto agree as follows:

No Further Agreements. 60 EXHIBITS 58 Exhibit A - Form of Acquisition Compliance Certificate Exhibit B - Form of Assignment and Acceptance Revolving Loan Borrowing Request Exhibit C - Form of Borrowing Base and Compliance Certificate Exhibit D - Form of Continuation/Conversion Request Exhibit E - Form of Guaranty Exhibit F - Form of Revolving Loan Borrowing Request Exhibit G D - Form of Revolving Loan Note Exhibit H E - Form of Assignment and Acceptance Exhibit F - Closing Documents List Exhibit I G - Form of Joinder Agreement Exhibit H - Form of Acquisition Certificate Schedule I - Administrative Information (Borrower; Agent; Banks) Schedule II - Disclosures (Existing Debt and Other Debt; Existing Subsidiaries) CREDIT AGREEMENT Schedule III - Subordination Terms (Subordinated Debt) Schedule IV - Restricted Payment Terms (Qualified Preferred Stock) This Credit Agreement dated as of December 31July 30, 19971998, is among HydroChem Industrial Integrated Electrical Services, Inc., a Delaware corporation, as Borrower, the financial institutions named herein, as Banks, and NationsBank, N.A., successor in interest by merger to NationsBank of Texas, N.A., as Agent for the Banks. The parties hereto agree as follows:

No Further Agreements. 60 57 EXHIBITS Exhibit A - Form of Acquisition Compliance Certificate Exhibit B - Form of Assignment and Acceptance Revolving Loan Borrowing Request Exhibit C - Form of Borrowing Base and Compliance Certificate Exhibit D - Form of Continuation/Conversion Request Exhibit E - Form of Guaranty Exhibit F - Form of Revolving Loan Borrowing Request Exhibit G D - Form of Revolving Loan Note Exhibit H E - Form of Assignment and Acceptance Exhibit F - Closing Documents List Exhibit I G - Form of Joinder Agreement Exhibit H - Form of Acquisition Certificate Schedule I - Administrative Information (Borrower; Agent; Banks) Schedule II - Disclosures (Existing Debt and Other Debt; Existing Subsidiaries) CREDIT AGREEMENT This Credit Agreement dated as of December 31January 30, 19971998, is among HydroChem Industrial Integrated Electrical Services, Inc., a Delaware corporation, as Borrower, the financial institutions named herein, as Banks, and NationsBank of Texas, N.A., as Agent for the Banks. The parties hereto agree as follows:

No Further Agreements. 60 69 EXHIBITS Exhibit A - Form of Acquisition Compliance Certificate Exhibit B - Form of Assignment and Acceptance Borrowing Request Exhibit C - Form of Borrowing Base and Compliance Certificate Exhibit D - Form of Continuation/Conversion Request Exhibit E - Form of Guaranty Exhibit F - Form of Revolving Loan Borrowing Request Exhibit G D - Form of Revolving Loan Note Exhibit H E - Form of Assignment and Acceptance Exhibit F - Closing Documents List Exhibit I G - Form of Joinder Agreement Exhibit H - Form of Acquisition Certificate Exhibit I - Form of Seller Subordinated Note Schedule I - Administrative Information (Borrower; Agent; Banks) Schedule II - Disclosures (Existing Debt and Letters of Credit; Existing Other Debt; Existing Seller Subordinated Notes; Existing Subsidiaries) CREDIT AGREEMENT This Credit Agreement dated as of December 31August 13, 1997, is among HydroChem Industrial ServicesCoach USA, Inc., a Delaware corporation, as Borrower, the financial institutions named herein, as Banks, and NationsBank of Texas, N.A., as Agent for the Banks. The parties hereto agree as follows:

No Further Agreements. 60 62 EXHIBITS Exhibit A - Form of Acquisition Compliance Certificate Exhibit B - Form of Assignment and Acceptance Revolving Loan Borrowing Request Exhibit C - Form of Borrowing Base and Compliance Certificate Exhibit D - Form of Continuation/Conversion Request Exhibit E - Form of Guaranty Exhibit F - Form of Revolving Loan Borrowing Request Exhibit G D - Form of Revolving Loan Note Exhibit H E - Form of Assignment and Acceptance Exhibit F - Closing Documents List Exhibit I G - Form of Joinder Agreement Exhibit H - Form of Acquisition EBITDA Certificate Schedule I - Administrative Information (Borrower; Agent; Banks) Schedule II - Disclosures (Existing Debt Subsidiaries, Investments, Debt, Liens and Existing SubsidiariesLitigation) CREDIT AGREEMENT Schedule III - Certain Excluded Charges This Credit Agreement dated as of December 31February 13, 19971998, is among HydroChem Industrial Services, Inc.Tyler Corporation, a Delaware corporation, as Borrower, the financial institutions named herein, as Banks, and NationsBank of Texas, N.A., as Agent for the Banks. The parties hereto agree as follows:

No Further Agreements. 60 62 EXHIBITS Exhibit A - Form of Acquisition Compliance Certificate Exhibit B - Form of Assignment and Acceptance Exhibit C - Form of Borrowing Base and Compliance Certificate Exhibit D - Form of Continuation/Conversion Request Exhibit E - Form of Guaranty Exhibit F - Form of Revolving Loan Borrowing Request Exhibit G C - Form of Interest Rate Election Request Exhibit D - Form of Revolving Loan Note Exhibit H E - Form of Assignment and Acceptance Exhibit F - Closing Documents List Exhibit I G - Form of Joinder Agreement Acquisition EBITDA Certificate Schedule I - Administrative Information (Borrower; Agent; Banks) Schedule II - Disclosures (Existing Debt Debt, Investments, and Existing Subsidiaries) Schedule III - Certain Excluded Charges Schedule IV - Existing Letters of Credit CREDIT AGREEMENT This Credit Agreement dated as of December 31October 1, 19971999, is among HydroChem Industrial ServicesTyler Technologies, Inc., a Delaware corporation, as Borrower, the financial institutions named herein, as Banks, and NationsBank Bank of TexasAmerica, N.A., as Agent for the Banks, Chase Bank of Texas, N.A., as the Syndication Agent, Bank One, Texas, N.A., as Documentation Agent and Banc of America Securities LLC, as Lead Arranger and Book Manager. The parties hereto agree as follows: