EXHIBIT 10.21.1 SECOND AMENDMENT AND SUPPLEMENT TO CREDIT AGREEMENT This Second Amendment and Supplement to Credit Agreement (herein called the "Second Amendment") is dated and effective as of March 5, 1996, by and among NEWPARK RESOURCES, INC., a Delaware corporation (the "Borrower"), SOLOCO L.L.C., a Louisiana limited liability company and the successor by merger to SOLOCO, Inc. ("SOLOCO L.L.C."), NEWPARK SHIPHOLDING TEXAS, L.P., a Texas limited partnership ("Newpark Shipholding"), SOLOCO TEXAS, L.P., a Texas limited partnership ("SOLOCO Texas"), BATSON-MILL, L.P., a Texas limited partnership ("Batson"), MALLARD & MALLARD OF LA., INC., a Louisiana corporation ("Mallard"), NEWPARK TEXAS, L.L.C., a Louisiana limited liability company ("Newpark Texas"), NEWPARK HOLDINGS, INC., a Louisiana corporation ("Holdings"), NEWPARK ENVIRONMENTAL SERVICES, L.L.C., a Louisiana limited liability company and the successor by merger to Newpark Environmental Services, Inc. ("Environmental L.L.C."), and NEWPARK ENVIRONMENTAL SERVICES, L.P., a Texas limited partnership ("Environmental L.P."; SOLOCO L.L.C., Newpark Shipholding, SOLOCO Texas, Batson, Mallard, Newpark Texas, Holdings, Environmental L.L.C. and Environmental L.P. are herein collectively called the "Guarantors"), and HIBERNIA NATIONAL BANK ("Hibernia"), BANK ONE TEXAS, N.A. ("Bank One"), and PREMIER BANK, NATIONAL ASSOCIATION ("Premier") (Hibernia, Bank One, and Premier are hereinafter referred to individually as "Bank" and collectively as the "Banks"), and PREMIER BANK, NATIONAL ASSOCIATION as agent for the Banks (hereinafter in such capacity referred to as the "Agent"). RECITALS: 1. The Borrower, the Guarantors (except Environmental L.L.C. and Environmental L.P.), Newpark Environmental Services, Inc., Newpark Environmental Water Services, Inc., SOLOCO, Inc., the Banks, and the Agent are parties to that certain Credit Agreement dated as of June 29, 1995, as amended and modified by letter agreements thereto dated October 9, 1995 and January 8, 1996 (the said letter agreements are herein referred to as the "First Amendment"). The Credit Agreement, as amended by the First Amendment, is herein referred to as the Credit Agreement. 2. The Credit Agreement provides for (i) a revolving Line of Credit in the aggregate principal amount of $25,000,000.00, subject however, to a Line of Credit Borrowing Base limit of $22,500,000.00 less issued and outstanding letters of credit, and (ii) a Term Loan in the aggregate principal amount of $25,000,000.00. 3. Subsequent to the execution of the Credit Agreement, the following mergers and transfer of operations and assets occurred: SOLOCO, Inc. was merged into SOLOCO L.L.C.; Newpark Environmental Water Services, Inc. was merged into Newpark Environmental Services, Inc.; Newpark Environmental Services, Inc. was then merged into Environmental L.L.C.; and the Texas operations and assets of Environmental L.L.C. were contributed to Environmental L.P. 4. Each of SOLOCO, Inc., Newpark Environmental Services, Inc., and Newpark Environmental Water Services, Inc. were Guarantors under the Credit Agreement. 5. The Borrower and the Guarantors have requested that the Banks (i) increase the Term Loan from $25,000,000.00 to $35,000,000.00 and (ii) revise the Line of Credit Borrowing Base so that the Line of Credit Borrowing Base equals Eligible Receivables times eighty percent (80%) plus Batson's inventory of lumber and logs on which the Banks have a first ranking security interest times fifty percent (50%), up to the maximum amount of $25,000,000.00 less the sum of the face amount of all outstanding letters of credit issued under the Line of Credit Borrowing Base; provided, however, the aggregate amount of all advances under the Line of Credit based upon Batson's inventory of lumber and logs times fifty percent (50%) shall not exceed $4,000,000.00. 6. The Banks are willing to accommodate the aforesaid requests, subject to the following conditions and requirements: (i) the execution of this Second Amendment for the purpose of evidencing (a) the Term Loan increase of $10,000,000.00 and the revision to the calculation of the Line of Credit Borrowing Base, (b) a revision of Section 8.06 of the Credit Agreement to reflect the revised calculation of the Line of Credit Borrowing Base, (c) an additional limitation on advances and borrowings under the Line of Credit to reflect that no more than twenty percent (20%) of the outstanding balance at any particular time under the Line of Credit can be dependent on Eligible Receivables owed by a single account debtor, and (d) all other necessary or contemplated changes; (ii) the execution by the Borrower of additional Term Notes in the aggregate amount of $10,000,000.00; (iii) the execution by the Borrower and the Guarantors of new Continuing Guaranty agreements in favor of the Agent for the pro rata benefit of the Banks in the amount of $60,000,000.00 plus interest, costs, and attorney's fees; (iv) the execution of UCC-3 financing statement amendments to evidence the mergers and transfer of operations and assets mentioned above; (v) the execution of Security Agreements and Financing Statements by each of Environmental L.L.C. and Environmental L.P. in favor of the Agent for the pro rata benefit of the Banks, and affecting all accounts, general intangibles, inventory, equipment, and deposit accounts; (vi) the execution by the Borrower, SOLOCO Texas, Mallard, SOLOCO L.L.C., and Batson of amendments to the Security Agreements dated June 29, 1995 executed by each of the aforesaid parties in favor of the Agent for the pro rata benefit of the Banks, to make it clear that the indebtedness arising under or pursuant to the Credit Agreement, as amended by this Second Amendment, continues to be secured by the Security Agreements; and (vii) payment of a facility fee in the amount of .375% of $12,500,000.00, by the Borrower to the Agent for the pro rata benefit of Premier and Hibernia. 7. Under the Credit Agreement the present Ratable Share of each of the Banks in the Line of Credit and Term Loan is as follows: Premier - 40%; Hibernia - 30%; and Bank One - 30%. 8. Subsequent to the execution of the Credit Agreement, Premier became part of the Banc One Corporation family of banks. 9. Premier and Bank One have agreed that Premier will purchase from Bank One and Bank One will sell, assign, and transfer to Premier: (i) Bank One's obligation to make loans and advances under the Line of Credit, the existing indebtedness of the Borrower to Bank One under Bank One's Revolving Note dated June 29, 1995 in the face amount of $7,500,000.00, and Bank One's unfunded liabilities associated with outstanding letters of credit issued under the Credit Agreement, to be effective upon execution of this Second Amendment; and (ii) the indebtedness of the Borrower to Bank One under Bank One's Term Note dated June 29, 1995 in the face amount of $7,500,000.00, to be effective on December 20, 1996. 10. The Term Loan increase of $10,000,000.00 will be funded 70% by Premier and 30% by Hibernia. 11. Upon the execution of this Second Amendment, the Ratable Share of each of the Banks in the Line of Credit and Term Loan (as increased) will be: Premier - 57-1/2%; Bank One - 12- 1/2%; and Hibernia - 30%. On December 20, 1996, the effective date of the transaction between Premier and Bank One discussed in part (ii) of RECITAL 9 above, Bank One will no longer be a party to the Credit Agreement, and the Ratable Share of Premier and Hibernia in the Line of Credit and Term Loan (as increased) will be: Premier - 70%; and Hibernia - 30%. 12. All capitalized terms used herein are used as defined in the Credit Agreement, except as otherwise expressly provided in this Second Amendment. NOW THEREFORE, in consideration of the premises, the parties hereto do hereby amend and supplement the Credit Agreement, and agree and obligate themselves as follows: A. RATABLE SHARE REVISION. The second and third sentences in the second paragraph on page 1 of the Credit Agreement are hereby deleted and replaced with the following: Notwithstanding any provision herein contained to the contrary, the Banks' agreement is limited to the Ratable Share of each Bank in the Line of Credit and the Term Loan. The term "Ratable Share" shall mean: (i) from June 29, 1995 through March 4, 1996, in the case of Premier, 40%, in the case of Hibernia, 30%, and in the case of Bank One, 30%; (ii) from March 5, 1996 through December 19, 1996, in the case of Premier, 57-1/2%, in the case of Hibernia, 30%, and in the case of Bank One, 12-1/2%; and (iii) effective December 20, 1996, in the case of Premier, 70%, and in the case of Hibernia, 30%. In addition, the parties hereto agree that as of March 5, 1996, the Line of Credit Ratable Share is as follows: Premier - 70%, Hibernia - 30%, and Bank One - 0%. The Borrower and the Guarantors hereby acknowledge and consent to the transactions described in RECITAL 9 above, and agree that Bank One is no longer a party to the Line of Credit and that as of December 20, 1996, Bank One shall no longer be a party to this Agreement. B. LINE OF CREDIT REVISIONS. Section 1.01 of the Credit Agreement is hereby deleted in its entirety and replaced with the following: 1.01 Revolving Line of Credit Commitment. Subject to the terms and conditions of this Agreement, Premier and Hibernia agree to continue the establishment in favor of the Borrower of a revolving line of credit in the aggregate principal amount of $25,000,000.00 (herein called the "Line of Credit"), and the Borrower may request credit advances under the Line of Credit and make borrowing and re-borrowings thereunder; provided, however, (a) direct advances to the Borrower shall be limited to a maximum aggregate principal amount equal to the Line of Credit and (b) the aggregate principal amount outstanding under the Line of Credit shall never exceed at any time the lesser of (i) the Line of Credit Borrowing Base or (ii) $25,000,000.00. The Line of Credit shall terminate on December 31, 1998 and no further advances shall be made to the Borrower after such termination date. The commitment of Premier and Hibernia to extend funds to the Borrower under the Line of Credit is limited to each of their Line of Credit Ratable Share of $25,000,000.00. In addition, the Line of Credit shall remain subject to a sublimit of $6,500,000.00 as provided in Section 1.07 below. Section 1.02 of the Credit Agreement also is amended and supplemented to reflect that the references to Bank or Banks therein shall henceforth mean Premier and Hibernia. In addition, the Borrower and the Guarantors acknowledge that the Revolving Note dated June 25, 1995 by the Borrower in the amount of $7,500,000.00 payable to the order of Bank One is now owned and held by Premier. Section 1.03 of the Credit Agreement is hereby deleted in its entirety and replaced with the following: 1.03. Borrowing Base. The Line of Credit is subject to a borrowing base (hereinafter referred to as the "Line of Credit Borrowing Base"), calculated according to the following formula: The Line of Credit Borrowing Base equals Eligible Receivables times eighty percent (80%) plus Batson's inventory of lumber and logs on which the Banks have a first ranking security interest times fifty percent (50%), up to the maximum amount of $25,000,000.00 less the sum of the face amounts of all outstanding letters of credit issued under the Line of Credit Borrowing Base; provided, however, (i) the aggregate amount of all advances under the Line of Credit based upon Batson's inventory of lumber and logs times fifty percent (50%) shall not exceed $4,000,000.00 and (ii) no more than twenty percent (20%) of the outstanding principal balance under the Line of Credit can be dependent on Eligible Receivables owed by a single account debtor. The term "Eligible Receivables" is herein defined as the Accounts Receivable of the Borrower, Environmental L.L.C., Mallard, SOLOCO Texas, Batson, Environmental L.P., and SOLOCO, L.L.C. (collectively the "Accounts Grantors"), aged less than ninety (90) days from the respective invoice dates thereof less any related company accounts, potential offsets, foreign accounts, discounts offered and finance charges reasonably set aside by the Agent; provided, however, Eligible Receivables shall not include (i) the entire current balance of those Accounts Receivable not classified as Major Accounts in which twenty percent (20%) of the aggregate of the account balances owed by a particular account debtor is aged ninety (90) days or more from the date of invoice, and (ii) that portion of any Major Account which is aged 90 days or more from the date of invoice. Any Accounts Receivable rendered ineligible due to the 20% rule stated in (i) above shall render all Accounts Receivable from that particular account debtor ineligible. The term "Accounts Receivable" is herein defined as the accounts of Accounts Grantors now and hereafter existing which are approved by the Agent. The term "Major Accounts" is herein defined as those accounts owed to any of the Accounts Grantors by account debtors that are major oil and industrial companies determined in the sole discretion of Premier and Hibernia to be Major Accounts based on the credit quality of the account debtors. The Agent will notify the Borrower in writing of the periodic determination of Major Accounts. The Agent reserves the right to exclude accounts that are not Eligible Receivables. If the Agent excludes any such account or accounts, the Agent will provide the Borrower with written notice thereof 30 days prior to exclusion of the account or accounts. Any credit balances arising from accounts that are not Eligible Receivables will be excluded from the Line of Credit Borrowing Base. The initial determination of Major Accounts is attached hereto as Exhibit A. Section 1.08 of the Credit Agreement is hereby amended and supplemented to reflect that the outstanding letter of credit issued by Premier to Gray & Company, as of December 31, 1995, is in the amount of $2,000,000.00. Sections 1.04, 1.05, 1.06, 1.10, 1.11, 1.12, and 1.13 of the Credit Agreement are hereby amended and supplemented to reflect that all references therein to Bank or Banks shall henceforth mean Hibernia and Premier. C. TERM LOAN REVISIONS. Section 2.01 of the Credit Agreement is hereby deleted in its entirety and replaced with the following: 2.01. Term Loan Commitment. (a) Subject to the terms and conditions of the Credit Agreement, each of the Banks extended a term loan to the Borrower in the aggregate principal amount of $25,000,000.00 (the "Original Term Loan"). The Original Term Loan by each Bank was limited to each Bank's original Ratable Share of $25,000,000.00. The purpose of the Original Term Loan was to refinance existing indebtedness of the Borrower, including indebtedness owed to Premier. The indebtedness to be refinanced by the Original Term Loan and, as necessary, the Line of Credit, is described in Exhibit E attached to the Credit Agreement. (b) Subject to the terms and conditions of the Credit Agreement, as amended by the Second Amendment, Premier and Hibernia have agreed to extend an additional term loan to the Borrower in the aggregate principal amount of $10,000,000.00 (the "Additional Term Loan"). Hibernia's portion of the Additional Term Loan is $3,000,000.00 or 30% and Premier's portion is $7,000,000,00 or 70%. The proceeds of the Additional Term are to be used by the Borrower to pay down the outstanding balance owed under the Line of Credit. (c) All references in the Credit Agreement to the Term Loan shall henceforth be deemed references to both the Original Term Loan and the Additional Term Loan. Section 2.02 of the Credit Agreement is hereby deleted in its entirety and replaced with the following: 2.02 Term Notes. Each Bank's Ratable Share of the Original Term Loan is evidenced by a Term Note of the Borrower dated June 29, 1995, in the principal face amount of such Bank's Ratable Share of $25,000,000.00, payable to the order of such Bank. In addition, the Additional Term Loan shall be evidenced by two separate promissory notes of the Borrower. One such note shall be in the principal amount of $7,000,000.00 payable to the order of Premier and the other note shall be in the principal amount of $3,000,000.00 payable to the order of Hibernia. Each of the notes evidencing a portion of the Original Term Loan and Additional Term Loan will be or are payable in monthly interest installments and seventeen equal quarterly principal payments commencing March 31, 1996 and continuing each quarter thereafter with a final eighteenth quarterly principal installment on June 30, 2000, at which time the final quarterly principal payment shall be due, together with all accrued and unpaid interest (singly, a "Term Note"; collectively the "Term Notes"). Notwithstanding the foregoing, the Borrower understands and agrees that the Term Notes shall be due and payable on December 31, 1998 if the Line of Credit is not renewed on or before such date by Premier and Hibernia. The quarterly principal payments will be in an amount necessary to amortize the principal amount thereof over a five year period commencing June 29, 1995. The interest rate applicable to the Term Notes shall be at the option of the Borrower, either the Prime Rate or the LIBOR Rate plus 2.25%, as such term is defined in Section 3.01 below, subject to any applicable rate adjustment as provided in Section 3.02(e) below. All references in the Credit Agreement to a Term Note or the Term Notes shall henceforth be deemed references to a note or the notes evidencing both the Original Term Loan and the Additional Term Loan. Section 2.03 of the Credit Agreement is hereby amended and supplemented to include the payment of a facility fee in the amount of .375% of the $12,500,000.00 payable by the Borrower to the Agent for the pro rata benefit of Premier and Hibernia. D. REVISIONS TO SECURITY INTERESTS; GUARANTEES. The Borrower and the Guarantors do hereby confirm all prior grants of mortgages and security interests granted by them as described in Section 4.01 of the Credit Agreement. To evidence the agreement of the parties concerning the execution of new Continuing Guaranty agreements, amendments to Security Agreements, and the execution of a Security Agreement and Financing Statement by each of Environmental L.L.C. and Environmental L.P., subparagraphs (a) and (b) of Section 4.01 the Credit Agreement are hereby deleted and replaced with the following: (a). Security Agreement and Financing Statement executed on and dated June 29, 1995 by each of the Borrower, SOLOCO, Inc., Newpark Environmental Services, Inc., Newpark Environmental Water Services, Inc., SOLOCO Texas, Mallard, SOLOCO L.L.C., and Batson in favor of the Agent for the pro rata benefit of the Banks affecting all accounts, general intangibles, equipment, and inventory of the said parties, whether now or hereafter existing, together with all proceeds therefrom, as amended by First Amendment to Security Agreement dated March 5, 1996 by each of the Borrower and the Account Grantors; Security Agreement and Financing Statement by each of Environmental L.L.C. and Environmental L.P. in favor of the Agent for the pro rata benefit of the Banks affecting all accounts, general intangibles, equipment, and inventory, whether now or hereafter existing, together with all proceeds therefrom; which foregoing documents shall constitute a first ranking lien and security interest affecting the aforesaid collateral except with respect to existing liens securing indebtedness set forth on Exhibit "G" or liens permitted by the Banks; (b). Continuing Guaranty agreements in the amount of $60,000,000.00 (plus interest, costs, and attorney's fees) by each of the Borrower and the Guarantors in favor of the Agent for the pro rata benefit of the Banks; The Guarantors confirm the acknowledgment contained in Section 4.02 of the Credit Agreement. E. REVISION TO REPRESENTATIONS AND WARRANTIES. Section 5.14 of the Credit Agreement is hereby deleted and replaced with the following: 5.14. Generation of Accounts. As of March 5, 1996, the only subsidiaries and affiliates of the Borrower generating accounts are SOLOCO Texas, SOLOCO L.L.C., Batson, Environmental L.L.C. and Environmental L.P. F. REVISION TO REPRESENTATIONS AND WARRANTIES BY THE GUARANTORS. Section 6.06 of the Credit Agreement is hereby deleted and replaced with the following: 6.06 Chief Executive Offices; Employer Identification Numbers. The chief executive office and employer identification number of each Guarantor is as shown on the revised Exhibit H attached to the Second Amendment. G. REVISION TO FINANCIAL COVENANTS. Section 8.06 of the Credit Agreement is hereby deleted and replaced with the following: 8.06 Debt Service Ratio. The Borrower shall maintain a minimum total consolidated net income plus depreciation, amortization and interest expense (adjusted cash flow calculated on the trailing four quarters) of 1.25 times total annual debt service (total of all principal and interest payments due in one year). For purposes of this calculation annual debt service will also include the principal and interest payments necessary to repay $23,000,000.00 (total available to be drawn under the Line of Credit Borrowing Base less the $2,000,000.00 outstanding letter of credit to Gray & Company) over a five year period at the LIBOR Rate plus 2.00% (or the applicable rate in accordance with the rate adjustment grid attached hereto as Exhibit F). This covenant shall be monitored and measured quarterly by the Agent for compliance. H. AFFIRMATION OF CREDIT AGREEMENT BY ENVIRONMENTAL L.L.C. AND ENVIRONMENTAL L.P. Environmental L.L.C. and Environmental L.P. do hereby acknowledge all obligations, covenants, agreements, and duties imposed on the Guarantors by the Credit Agreement, as amended by this Second Amendment. The said obligations, covenants, agreements, and duties are applicable to Environmental L.L.C. and Environmental L.P., as Guarantors. All references in the Credit Agreement to the Guarantors shall henceforth be deemed a reference to the Guarantors as defined in the preamble to this Second Amendment. I. REVISED BORROWING BASE AND COMPLIANCE CERTIFICATES. Revised Borrowing Base and Compliance Certificates are attached hereto as Revised Exhibits B and I. J. MISCELLANEOUS PROVISIONS. 1. The Borrower agrees that nothing contained in this Second Amendment shall constitute a novation. 2. In consideration of the Bank's execution of this Second Amendment, the Borrower and the Guarantors do hereby irrevocably waive any and all claims and/or defenses to payment on the indebtedness owed by any of them to the Banks that may exist as of the date of execution of this Second Amendment. 3. The Credit Agreement, as amended and supplemented by this Second Amendment, is hereby ratified and confirmed. 4. THE INTERNAL LAWS OF THE STATE OF LOUISIANA AND OF THE UNITED STATES OF AMERICA SHALL GOVERN THE RIGHTS AND DUTIES OF THE PARTIES HERETO AND THE VALIDITY, CONSTRUCTION, ENFORCEMENT, AND INTERPRETATION OF THE CREDIT AGREEMENT, THE SECOND AMENDMENT, AND ALL LOAN PAPERS EXECUTED IN CONNECTION THEREWITH EXCEPT TO THE EXTENT OTHERWISE SPECIFIED IN THE CREDIT AGREEMENT, AS AMENDED BY THIS SECOND AMENDMENT, OR IN ANY OF THE RELATED LOAN PAPERS. 5. THE CREDIT AGREEMENT AND THIS SECOND AMENDMENT ARE CREDIT OR LOAN AGREEMENTS AS DESCRIBED IN LA. R.S. 6: Section 1121, ET. SEQ. THERE ARE NO ORAL AGREEMENTS BETWEEN THE BANKS AND THE BORROWER. 6. THE CREDIT AGREEMENT, AS AMENDED BY THIS SECOND AMENDMENT, SETS FORTH THE ENTIRE AGREEMENT OF THE PARTIES WITH RESPECT TO THE SUBJECT MATTER HEREOF AND SUPERSEDES ALL PRIOR WRITTEN AND ORAL UNDERSTANDINGS BETWEEN THE BORROWER AND THE GUARANTORS ON ONE HAND, AND THE BANKS AND/OR THE AGENT ON THE OTHER HAND, WITH RESPECT TO THE MATTERS HEREIN SET FORTH. THE CREDIT AGREEMENT, AS AMENDED BY THIS SECOND AMENDMENT, MAY NOT BE MODIFIED OR AMENDED EXCEPT BY A WRITING SIGNED AND DELIVERED BY THE BORROWER, THE GUARANTORS, THE BANKS, AND THE AGENT. THERE ARE NO UNWRITTEN ORAL AGREEMENTS BETWEEN THE PARTIES. 7. IN THE EVENT IT IS NECESSARY FOR THE AGENT AND/OR THE BANK TO RESORT TO JUDICIAL ACTION TO ENFORCE ITS/THEIR RIGHTS HEREUNDER, THEN THE BORROWER AND GUARANTORS HEREBY AGREE THAT TO THE EXTENT PERMITTED BY APPLICABLE LAW ANY SUCH JUDICIAL ACTION, INCLUDING ANY OPPOSITION TO SUCH ACTION, RECONVENTIONAL DEMANDS, AND CROSS CLAIMS, SHALL BE TRIED BEFORE A JUDGE WITHOUT A JURY, ALL PARTIES HERETO HEREBY WAIVING THEIR RIGHT TO A JURY TRIAL. BORROWER: NEWPARK RESOURCES, INC. BY:_____________________________ MATTHEW W. HARDEY, VICE PRESIDENT OF FINANCE AND CHIEF FINANCIAL OFFICER GUARANTORS: NEWPARK ENVIRONMENTAL SERVICES, L.L.C. By:____________________________ MATTHEW W. HARDEY, TREASURER NEWPARK SHIPHOLDING TEXAS, L.P. By: Newpark Holdings, Inc., as General Partner By:____________________________ MATTHEW W. HARDEY, VICE PRESIDENT SOLOCO TEXAS, L.P. By: Newpark Holdings, Inc., as General Partner By:____________________________ MATTHEW W. HARDEY, VICE PRESIDENT BATSON-MILL, L.P. By: Newpark Holdings, Inc., as General Partner By:____________________________ MATTHEW W. HARDEY, VICE PRESIDENT NEWPARK ENVIRONMENTAL SERVICES, L.P. By: Newpark Holdings, Inc., as General Partner By:______________________________ MATTHEW W. HARDEY, VICE PRESIDENT MALLARD & MALLARD OF LA., INC. By:____________________________ MATTHEW W. HARDEY, TREASURER SOLOCO, L.L.C. By:____________________________ MATTHEW W. HARDEY, TREASURER NEWPARK TEXAS, L.L.C. By:____________________________ MATTHEW W. HARDEY, VICE PRESIDENT NEWPARK HOLDINGS, INC. By:____________________________ MATTHEW W. HARDEY, VICE PRESIDENT BANKS: HIBERNIA NATIONAL BANK By:____________________________ Title:______________________ BANK ONE TEXAS, N.A. By:____________________________ Title:______________________ PREMIER BANK, NATIONAL ASSOCIATION By:____________________________ Title: Vice President AGENT: PREMIER BANK, NATIONAL ASSOCIATION By:____________________________ Title: Vice-President REVISED EXHIBIT B Borrowing Base Certificate Borrower: Newpark Resources, Inc. Date: ______________ A. Eligible Accounts Receivable as $ Described in the Credit Agreement Between Banks, the Agent and Newpark Resources, Inc., Dated June 29, 1995, as amended B. Advance Rate x.80 C. Accounts Receivable Portion of Borrowing Base (80% of "A") $ D. Eligible Batson-Mill inventory $ E. Advance Rate x.50 F. Inventory Portion of Borrowing Base (not to exceed $4,000,000.00) $ G. Total Collateral Base Available ("C" + "F", but not to exceed $25,000,000.00) $ H. LESS: Outstanding Letters of Credit included in borrowing base $ I. LESS: Existing Line Balance $ J. Excess Net Collateral Base $ K. LESS: Requested Draw Amount $ I hereby certify that I am authorized to submit this Line of Credit request and Borrowing Base Certificate on behalf of Newpark Resources, Inc. and that the above information is accurate and conforms to the terms and conditions set forth in the Credit Agreement dated June 29, 1995, as amended, and is based upon the Accounts Receivable Aging dated __________. The Requested Draw Amount is to be a __________ Prime Rate Loan or a _________ LIBOR Loan. If a LIBOR Loan, the requested Rate Period is _____ 30 days, _____ 60 days, or _____ 90 days. I further certify that as of the date hereof, no condition, event, or act which, with or without notice or lapse of time or both, would constitute an event of default under the Restated Credit Agreement. Also, the best of our knowledge, Newpark Resources, Inc. and the Guarantors (as defined in the Credit Agreement) have complied with all provisions of the Credit Agreement, as amended. ________________________________ As Authorized Agent for Newpark Resources, Inc. REVISED EXHIBIT I Compliance Certificate (Date) Premier Bank, National Association P. O. Box 3248 Lafayette, Louisiana 70502 Attention: Mrs. Rose M. Miller Re: Compliance Certificate Dear Mrs. Miller: This compliance certificate is submitted pursuant to Section 7.11 of that certain Credit Agreement dated as of June 29, 1995, as amended by letter agreements dated October 9, 1995 and January 8, 1996, and by Second Amendment and Supplement to Credit Agreement dated as of March 5, 1996 (the "Credit Agreement"), by and among the undersigned, Newpark Environmental Services, L.L.C., Newpark Environmental Services, L.P., Mallard & Mallard of La., Inc., Newpark Shipholding Texas, L.P., SOLOCO Texas, L.P., Batson-Mill, L.P., SOLOCO L.L.C., Newpark Texas, L.L.C., Newpark Holdings, Inc., Hibernia National Bank, Bank One Texas, N.A., and Premier Bank, National Association (individually, and as Agent for the said Banks). Under the appropriate sections of the Credit Agreement, we certify that, to the best of our knowledge and belief, no condition, event, or act which, with or without notice or lapse of time or both, would constitute an event of default under the terms of the Credit Agreement, has occurred during the 3 month period ending ______________ (the "Reporting Period"). Also, to the best of our knowledge, the undersigned the Guarantors (as defined in the Credit Agreement) have complied with all provisions of the Credit Agreement. Additionally, the undersigned submits the following financial information for the Reporting Period in accordance with the covenants contained in Section 8 of the Credit Agreement. Current Ratio (Section 8.01) Consolidated Current Assets.............................$_______________ Consolidated Current Liabilities........................$_______________ Current Ratio ..........................................$_______________ Minimum Current Ratio-Allowed........................... 1.20X Debt Worth Ratio (Section 8.02) Total Consolidated Liabilities .........................$_______________ Total Consolidated Tangible Net Worth ..................$_______________ Ratio ..................................................$_______________ Total Consolidated Liabilities to Total Consolidated Tangible Net Worth Allowed .............. 1.0X Minimum Tangible Net Worth (Section 8.03) Consolidated Tangible Net Worth ........................$_______________ Annual Net Income for year ending _________________ ....................................$_______________ 75% of Annual Net Income ...............................$_______________ Minimum Tangible Net Worth Required ($58,796,000.00 + 75% of Annual Net Income............$_______________ Book Value of Fixed Assets (Section 8.05) Book Value of Fixed Assets of Borrower and Guarantors .......................................$_______________ (excluding assets subject to outside financing) Outstanding Amount under Term Notes ....................$_______________ Minimum Book Value Required ............................$1.75 X Outstanding Term Note Amount Sale of Assets (Section 8.05) Asset Sale for replacement purposes..................... yes no Amount .................................................$_______________ Permitted Amount .......................................$ 250,000.00 Applied to Debt ........................................ yes no Debt Service Ratio (Section 8.06) Total Consolidated Net Income Plus Depreciation Plus Amortization and Interest Expense................$_______________ Total Annual Debt Service ..............................$_______________ Ratio Required ......................................... 1.25 X 1.0 (see Section 8.06 for calculation) Sincerely, NEWPARK RESOURCES, INC. By:___________________________ Title:_____________________ Date:______________________ REVISED EXHIBIT H Chief Executive Office and Employer Identification Numbers of Guarantors Mallard & Mallard of La., Inc. EIN 74-2062791 3850 N. Causeway Boulevard Suite 1770 Metairie, LA 70002 Newpark Environmental Services, L.L.C. EIN 72-0770718 3850 N. Causeway Boulevard Suite 1770 Metairie, LA 70002 Newpark Environmental Services, L.P. EIN 72-1312748 3850 N. Causeway Boulevard Suite 1770 Metairie, LA 70002 Newpark Holdings, Inc. EIN 72-1286594 3850 N. Causeway Boulevard Suite 1770 Metairie, LA 70002 Newpark Texas, L.L.C. EIN 72-1286789 3850 N. Causeway Boulevard Suite 1770 Metairie, LA 70002 SOLOCO, L.L.C. EIN 72-1286785 3850 N. Causeway Boulevard Suite 1770 Metairie, LA 70002 Batson-Mill, L.P. EIN 72-1284721 3850 N. Causeway Boulevard Suite 1770 Metairie, LA 70002 Newpark Shipholding Texas, L.P. EIN 72-1286763 3850 N. Causeway Boulevard Suite 1770 Metairie, LA 70002 SOLOCO Texas, L.P. EIN 72-1284720 3850 N. Causeway Boulevard Suite 1770 Metairie, LA 70002