EXHIBIT 1 ================================================================================ PENNZOIL-QUAKER STATE COMPANY (a Delaware corporation) $200,000,000 6 3/4% NOTES DUE 2009 $400,000,000 7 3/8% Debentures Due 2029 -------------------------------- UNDERWRITING AGREEMENT -------------------------------- Dated: March 25, 1999 ================================================================================ TABLE OF CONTENTS UNDERWRITING AGREEMENT..................................................... 4 SECTION 1. Representations and Warranties.................................. 3 (a) Representations and Warranties by the Company................... 3 (1) Compliance with Registration Requirements................. 3 (2) Incorporated Documents.................................... 3 (3) Independent Accountants................................... 4 (4) Financial Statements...................................... 4 (5) No Material Adverse Change in Business.................... 4 (6) Good Standing of the Company.............................. 5 (7) Good Standing of Subsidiaries............................. 5 (8) Capitalization............................................ 6 (9) Authorization of this Agreement........................... 6 (10) Authorization of the Indenture............................ 6 (11) Authorization of the Securities........................... 6 (12) Description of the Securities and the Indenture........... 6 (13) Absence of Defaults and Conflicts......................... 6 (14) Absence of Labor Disputes................................. 7 (15) Absence of Proceedings.................................... 7 (16) Accuracy of Exhibits...................................... 8 (17) Absence of Further Requirements........................... 8 (18) Possession of Intellectual Property....................... 8 (19) Possession of Licenses and Permits........................ 8 (20) Tax Returns............................................... 8 (21) Environmental Laws........................................ 9 (22) Insurance................................................. 9 (23) No Stabilization.......................................... 9 (24) Investment Company Act.................................... 9 (b) Officers' Certificates.......................................... 10 SECTION 2. Sale and Delivery to Underwriters; Closing...................... 10 (a) Securities...................................................... 10 (b) Payment......................................................... 10 (c) Denominations; Registration..................................... 10 SECTION 3. Covenants of the Company........................................ 11 (a) Compliance with Securities Regulations and Commission Requests.. 11 (b) Filing of Amendments............................................ 11 (c) Delivery of Registration Statements............................. 11 (d) Delivery of Prospectus.......................................... 12 (e) Continued Compliance with Securities Laws....................... 12 (f) Blue Sky Qualifications......................................... 12 i (g) Earnings Statement.............................................. 12 (h) Use of Proceeds................................................. 13 (i) Restriction on Sale of Securities............................... 13 (j) Reporting Requirements.......................................... 13 SECTION 4. Payment of Expenses............................................. 13 (a) Expenses........................................................ 13 (b) Termination of Agreement........................................ 13 SECTION 5. Conditions of Underwriters' Obligations......................... 14 (a) Effectiveness of Registration Statement......................... 14 (b) Opinion of Counsel for Company.................................. 14 (c) Opinion of Counsel for Underwriters............................. 14 (d) Officers' Certificate........................................... 15 (e) Accountant's Comfort Letters.................................... 15 (f) Bring-down Comfort Letter....................................... 15 (g) Maintenance of Rating........................................... 15 (h) Additional Documents............................................ 15 (i) Termination of Agreement........................................ 16 SECTION 6. Indemnification................................................. 16 (a) Indemnification of Underwriters by the Company.................. 16 (b) Indemnification of Company, Directors and Officers.............. 17 (c) Actions against Parties; Notification........................... 17 (d) Settlement without Consent if Failure to Reimburse.............. 18 SECTION 7. Contribution.................................................... 18 SECTION 8. Representations, Warranties and Agreements to Survive Delivery.. 19 SECTION 9. Termination of Agreement........................................ 20 (a) Termination; General............................................ 20 (b) Liabilities..................................................... 20 SECTION 10. Default by One or More of the Underwriters...................... 20 SECTION 11. Notices......................................................... 21 SECTION 12. Parties......................................................... 21 SECTION 13. Governing Law and Time.......................................... 21 SECTION 14. Effect of Headlines............................................. 21 ii SCHEDULES Schedule A - List of Underwriters.......................................... Sch A-1 Schedule B - Pricing Information........................................... Sch B-1 EXHIBITS Exhibit A - Form of Opinion of Company's Counsel........................... A-1 iii PENNZOIL-QUAKER STATE COMPANY (a Delaware corporation) $200,000,000 6 3/4% Notes Due 2009 $400,000,000 7 3/8% Debentures Due 2029 UNDERWRITING AGREEMENT March 25, 1999 CHASE SECURITIES INC. LEHMAN BROTHERS INC. MERRILL LYNCH & CO. Merrill Lynch, Pierce, Fenner & Smith Incorporated as Representatives of the several Underwriters c/o MERRILL LYNCH & CO. Merrill Lynch, Pierce, Fenner & Smith Incorporated North Tower World Financial Center New York, New York 10281-1209 Ladies and Gentlemen: Pennzoil-Quaker State Company, a Delaware corporation (the "Company") confirms its agreement with Chase Securities Inc., Lehman Brothers and Merrill Lynch & Co. and Merrill Lynch, Pierce, Fenner & Smith Incorporated ("Merrill Lynch") and each of the other Underwriters named in Schedule A-1 and A-2 hereto (collectively, the "Underwriters", which term shall also include any underwriter substituted as hereinafter provided in Section 10 hereof), for whom Chase Securities Inc., Lehman Brothers and Merrill Lynch are acting as Joint Book- Running Manager Representatives (in such capacity, the "Representatives"), with respect to the issue and sale by the Company and the purchase by the Underwriters, acting severally and not jointly, of (a) $200,000,000 aggregate principal amount of the Company's 6 3/4% Notes due 2009 (the "2009 Notes") in the principal amounts set forth in Schedule A-1 hereof and (b) $400,000,000 aggregate principal amount of the Company's 7 3/8% Debentures due 2029 (the "2029 Debentures") in the principal amounts set forth in Schedule A-2 hereof (collectively, the "Securities"). The Securities are to be issued pursuant to the indenture dated as of February 1, 1999 (the "Indenture") between the Company and Chase Bank of Texas, National Association, as trustee (the "Trustee"). The term "Indenture," as used herein, includes the Board Resolutions and Officer's Certificate (as defined in the Indenture) or the supplemental indenture establishing the form and terms of the Securities pursuant to Sections 301 and 904 of the Indenture. The Company understands that the Underwriters propose to make a public offering of the Securities as soon as the Representatives deem advisable after this Agreement has been executed and delivered and the Indenture has been qualified under the Trust Indenture Act of 1939, as amended (the "1939 Act"). The Company has filed with the Securities and Exchange Commission (the "Commission") a registration statement on Form S-3 (No. 333-65909) and pre- effective Amendment No. 1 thereto for the registration of the Securities under the Securities Act of 1933, as amended (the "1933 Act"), and the offering thereof from time to time in accordance with Rule 415 of the rules and regulations of the Commission under the 1933 Act (the "1933 Act Regulations"), and the Company has filed such post-effective amendments thereto as may be required. Such registration statement (as so amended, if applicable) has been declared effective by the Commission and the Indenture has been duly qualified under the 1939 Act. Such registration statement (as so amended, if applicable), including the information, if any, deemed to be a part thereof pursuant to Rule 430A(b) of the 1933 Act Regulations (the "Rule 430A Information") is referred to herein as the "Registration Statement"; and the final prospectus and the final prospectus supplement relating to the offering of the Underwritten Securities, in the form first furnished to the Underwriters by the Company for use in connection with the offering of the Underwritten Securities, are collectively referred to herein as the "Prospectus"; provided, however, that all references to the "Registration Statement" and the "Prospectus" shall also be deemed to include all documents incorporated therein by reference pursuant to the Securities Exchange Act of 1934, as amended (the "1934 Act"). A "preliminary prospectus" shall be deemed to refer to the prospectus dated January 25, 1999, and any preliminary prospectus supplement used before the filing or delivery of a final prospectus and final prospectus supplement relating to the offering filed with the Commission pursuant to Rule 424(b) of the 1933 Act. For purposes of this Underwriting Agreement, all references to the Registration Statement, Prospectus or preliminary prospectus or to any amendment or supplement to any of the foregoing shall be deemed to include any copy filed with the Commission pursuant to its Electronic Data Gathering, Analysis and Retrieval system ("EDGAR"). All references in this Agreement to financial statements and schedules and other information which is "contained," "included" or "stated" in the Registration Statement, any preliminary prospectus or the Prospectus (or other references of like import) shall be deemed to mean and include all such financial statements and schedules and other information which is incorporated by reference in the Registration Statement, any preliminary prospectus or the Prospectus, as the case may be; and all references in this Agreement to amendments or supplements to the Registration Statement, any preliminary prospectus or the Prospectus shall be deemed to mean and include the filing of any document under the 1934 Act which is incorporated by reference in the Registration Statement, such preliminary prospectus or the Prospectus, as the case may be. 2 SECTION 1. Representations and Warranties. (a) Representations and Warranties by the Company. The Company represents and warrants to each Underwriter, as of the date hereof, as of the Closing Time referred to in Section 2(b) hereof, and agrees with each Underwriter, as follows: (1) Compliance with Registration Requirements. The Company meets the requirements for use of Form S-3 under the 1933 Act. The Registration Statement has become effective under the 1933 Act and no stop order suspending the effectiveness of the Registration Statement has been issued under the 1933 Act and no proceedings for that purpose have been instituted or are pending or, to the knowledge of the Company, are contemplated by the Commission, and any request on the part of the Commission for additional information has been complied with. In addition, the Indenture has been duly qualified under the 1939 Act. At the respective times the Registration Statement and any post- effective amendments thereto became effective and at the Closing Time, the Registration Statement and any amendments and supplements thereto complied and will comply in all material respects with the requirements of the 1933 Act and the 1933 Act Regulations and the 1939 Act and the rules and regulations of the Commission under the 1939 Act (the "1939 Act Regulations"), and did not and will not contain an untrue statement of a material fact or omit to state a material fact necessary in order to make the statements therein, in the light of the circumstances under which they were made, not misleading. Neither the Prospectus nor any amendments or supplements thereto, at the time the Prospectus or any amendments or supplements thereto were issued and at the Closing Time, included or will include an untrue statement of a material fact or omitted or will omit to state a material fact necessary in order to make the statements therein, in the light of the circumstances under which they were made, not misleading. Notwithstanding the foregoing, the representations and warranties in this subsection shall not apply to statements in or omissions from the Registration Statement or the Prospectus made in reliance upon and in conformity with information furnished in writing by any Underwriter through any of the Representatives expressly for use in the Registration Statement or the Prospectus. Each preliminary prospectus and prospectus filed as part of the Registration Statement as originally filed or as part of any amendment thereto, or filed pursuant to Rule 424 under the 1933 Act, complied when so filed in all material respects with the 1933 Act Regulations and, if applicable, each preliminary prospectus and the Prospectus delivered to the Underwriters for use in connection with the offering of the Securities will, at the time of such delivery, be identical to the electronically transmitted copies thereof filed with the Commission pursuant to EDGAR, except to the extent permitted by Regulation S-T. (2) Incorporated Documents. The documents incorporated or deemed to be incorporated by reference in the Registration Statement and Prospectus, when they became effective or at the time they were or hereafter are filed with the Commission, complied and will comply in all material respects with the requirements of the 1934 Act and the rules and 3 regulations of the Commission thereunder (the "1934 Act Regulations") and, when read together with the other information in the Prospectus, at the date of the Prospectus, and at the Closing Time did not and will not include an untrue statement of a material fact or omit to state a material fact required to be stated therein or necessary to make the statements therein, in the light of the circumstances under which they were made, not misleading. (3) Independent Accountants. The accountants who certified the financial statements and supporting schedules of each of the Company and Quaker State Corporation ("Quaker State") included in the Registration Statement and the Prospectus are independent certified public accountants with respect to the Company and its subsidiaries and Quaker State and its subsidiaries, respectively, within the meaning of Regulation S-X under the 1933 Act. (4) Financial Statements. The financial statements of the Company included or incorporated by reference in the Registration Statement and the Prospectus, together with the related schedules and notes, as well as those financial statements, schedules and notes of any other entity included therein, present fairly in all material respects the financial position of the Company and its consolidated subsidiaries at the dates indicated and the statement of operations and cash flows of the Company and its consolidated subsidiaries for the periods specified. The financial statements of Quaker State included or incorporated by reference in the Registration Statement and the Prospectus, together with the related schedules and notes, as well as those financial statements, schedules and notes of any other entity included therein, present fairly in all material respects the financial position of Quaker State and its consolidated subsidiaries at the dates indicated and the statement of operations and cash flows of Quaker State and its consolidated subsidiaries for the periods specified. Such financial statements have been prepared in conformity with generally accepted accounting principles ("GAAP") applied on a consistent basis throughout the periods involved. The supporting schedules, if any, included or incorporated by reference in the Registration Statement and Prospectus present fairly in all material respects in accordance with GAAP the information required to be stated therein. The selected financial data and the summary financial information included or incorporated by reference in the Registration Statement and the Prospectus present fairly in all material respects the information shown therein and have been compiled on a basis consistent with that of the audited financial statements included or incorporated by reference in the Registration Statement and the Prospectus. In addition, any pro forma financial statements of the Company and its subsidiaries and the related notes thereto included or incorporated by reference in the Registration Statement and the Prospectus present fairly in all material respects the information shown therein, have been prepared in accordance with the Commission's rules and guidelines with respect to pro forma financial statements and have been properly compiled on the bases described therein, and the assumptions used in the preparation thereof are reasonable and the adjustments used therein are appropriate to give effect to the transactions and circumstances referred to therein. (5) No Material Adverse Change in Business. Since the respective dates as of which information is given in the Registration Statement and the Prospectus, except as otherwise stated therein, (A) there has been no material adverse change in the condition, 4 financial or otherwise, or in the earnings or business affairs of the Company and its subsidiaries considered as one enterprise, whether or not arising in the ordinary course of business (a "Material Adverse Effect"), (B) there have been no transactions entered into by the Company or any of its subsidiaries, other than those arising in the ordinary course of business, which are material with respect to the Company and its subsidiaries considered as one enterprise and (C) except for cash dividends on the Company's common stock in amounts not exceeding an aggregate of $0.25 per share, there has been no dividend or distribution of any kind declared, paid or made by the Company on any class of its capital stock since December 31, 1998. (6) Good Standing of the Company. The Company has been duly organized and is validly existing as a corporation in good standing under the laws of the state of Delaware and has corporate power and authority to own, lease and operate its properties and to conduct its business as described in the Prospectus and to enter into and perform its obligations under, or as contemplated under, this Agreement. The Company is duly qualified as a foreign corporation to transact business and is in good standing in each other jurisdiction in which such qualification is required, whether by reason of the ownership or leasing of property or the conduct of business, except where the failure to so qualify or be in good standing would not result in a Material Adverse Effect. (7) Good Standing of Subsidiaries. Each Subsidiary (as defined herein) of the Company has been duly organized and is validly existing as a corporation in good standing under the laws of the jurisdiction of its organization, has corporate power and authority to own, lease and operate its properties and to conduct its business as described in the Prospectus and is duly qualified as a foreign corporation to transact business and is in good standing in each jurisdiction in which such qualification is required, whether by reason of the ownership or leasing of property or the conduct of business, except where the failure to so qualify or be in good standing would not result in a Material Adverse Effect. Except as otherwise stated in the Registration Statement and the Prospectus, all of the issued and outstanding capital stock of each Subsidiary has been duly authorized and is validly issued, fully paid and non-assessable and is owned by the Company, directly or through Subsidiaries, free and clear of any security interest, mortgage, pledge, lien, encumbrance, claim or equity other than the pledges to banks under the loan agreements of the Company. None of the outstanding shares of capital stock of the Subsidiaries was issued in violation of preemptive or other similar rights arising by operation of law, under the charter or by-laws of any Subsidiary or under any agreement to which the Company or any Subsidiary is a party. Except for the stock of the Subsidiaries and as disclosed in the Registration Statement, the Company does not own, and at the Closing Date will not own, directly or indirectly, any shares of stock or any other equity or long- term debt securities of any corporation or have any equity interest in any firm, partnership, joint venture, association or other entity that constitutes a "significant subsidiary" as such term is defined in Rule 1-02 of Regulation S-X promulgated under the Act. Complete and correct copies of the certificate of incorporation and of the by-laws of the Company, Quaker State and Jiffy Lube International, Inc. ("Jiffy Lube" and collectively with Quaker State, the "Subsidiaries") and 5 all amendments thereto have been delivered to the Underwriters, and no changes therein will be made subsequent to the date hereof and prior to the Closing Date. (8) Capitalization. The capitalization of the Company as of December 31, 1998, is as set forth in the Prospectus in the column entitled "December 31, 1998 - Historical" under the caption "Capitalization" (except for subsequent issuances of capital stock, if any, pursuant to employee benefit plans referred to in the Prospectus or pursuant to the exercise of convertible securities or options referred to in the Prospectus). (9) Authorization of this Agreement. This Agreement has been, as of the date hereof, duly authorized, executed and delivered by the Company. (10) Authorization of the Indenture. The Indenture has been duly authorized by the Company and duly qualified under the 1939 Act and, when duly executed and delivered by the Company and the Trustee, will constitute a valid and binding agreement of the Company, enforceable against the Company in accordance with its terms, except as the enforcement thereof may be limited by bankruptcy, insolvency (including, without limitation, all laws relating to fraudulent transfers), reorganization, moratorium or similar laws affecting enforcement of creditors' rights and remedies generally and except as enforcement thereof is subject to general principles of equity (regardless of whether enforcement is considered in a proceeding in equity or at law). (11) Authorization of the Securities. The Securities have been duly authorized and, at the Closing Time, will have been duly executed by the Company, and, when authenticated, issued and delivered in the manner provided for in the Indenture and delivered against payment of the purchase price therefor as provided in this Agreement, will constitute valid and binding obligations of the Company, enforceable against the Company in accordance with their terms, except as the enforcement thereof may be limited by bankruptcy, insolvency (including, without limitation, all laws relating to fraudulent transfers), reorganization, moratorium or similar laws affecting enforcement of creditors' rights and remedies generally and except as enforcement thereof is subject to general principles of equity (regardless of whether enforcement is considered in a proceeding in equity or at law), and will be in the form contemplated by, and entitled to the benefits of, the Indenture. (12) Description of the Securities and the Indenture. The Securities and the Indenture conform in all material respects to the respective statements relating thereto contained in the Prospectus and the Indenture is in substantially the form filed or incorporated by reference, as the case may be, as exhibits to the Registration Statement. (13) Absence of Defaults and Conflicts. Neither the Company nor any of its Subsidiaries is in violation of its charter or by-laws or in default in the performance or observance of material contract or agreement to which the Company or any of its Subsidiaries is a party or by which it or any of them may be bound, or to which any of the property or assets of the Company or any Subsidiary is subject (collectively, "Agreements 6 and Instruments"), except for such defaults as would not result in a Material Adverse Effect. The execution, delivery and performance of this Agreement and any other agreement or instrument entered into or issued or to be entered into or issued by the Company in connection with the transactions contemplated hereby or thereby or in the Registration Statement and the Prospectus and the consummation of the transactions contemplated herein and in the Registration Statement and the Prospectus (including the issuance and sale of the Securities and the use of the proceeds from the sale of the Securities as described under the caption "Use of Proceeds") and compliance by the Company with its obligations under this Agreement have been duly authorized by all necessary corporate action and do not and will not, whether with or without the giving of notice or passage of time or both, conflict with or constitute a breach of, or default or Repayment Event (as defined below) under, or result in the creation or imposition of any lien, charge or encumbrance upon any assets, properties or operations of the Company or any of its Subsidiaries pursuant to, any Agreements and Instruments, except for such conflicts, breaches, defaults, events or liens, charges or encumbrances that, singly or in the aggregate, would not result in a Material Adverse Effect, nor will such action result in any violation of any existing applicable law, statute, rule, regulation, judgment, order, writ or decree of any government, government instrumentality or court, domestic or foreign, having jurisdiction over the Company or any of its Subsidiaries or any of their assets or properties, which violation would result in a Material Adverse Effect, nor will such action result in any violation of the provisions of the charter or by-laws of the Company or any of its Subsidiaries. As used herein, a "Repayment Event" means any event or condition which gives the holder of any note, debenture or other evidence of indebtedness (or any person acting on such holder's behalf) the right to require the repurchase, redemption or repayment of all or a portion of such indebtedness by the Company or any Subsidiary. (14) Absence of Labor Disputes. No labor dispute with the employees of the Company or any of its Subsidiaries exists or, to the knowledge of the Company, is imminent, and the Company is not aware of any existing or imminent labor disturbance by the employees of any of its or any of its Subsidiaries' principal suppliers, manufacturers, customers or contractors, which, in either case, may reasonably be expected to result in a Material Adverse Effect. Neither the Company nor any of its Subsidiaries has violated (i) any federal, state or local law or foreign law relating to discrimination in hiring, promotion or pay of employees applicable to the Company or any of its Subsidiaries or (ii) any applicable wage or hour laws in any manner, which violation could reasonably be expected to have a Material Adverse Effect. (15) Absence of Proceedings. Except as disclosed in the Registration Statement and the Prospectus, there is no action, suit, proceeding, inquiry or investigation before or by any court or governmental agency or body, domestic or foreign, now pending, or, to the knowledge of the Company, threatened, against or affecting the Company or any Subsidiary which is required to be disclosed in the Registration Statement and the Prospectus (other than as stated therein), or which might reasonably be expected to result in a Material Adverse Effect, or which might reasonably be expected to materially and adversely affect the purchase and sale of the Securities or would be required to be disclosed in the Registration Statement or the Prospectus which is not disclosed in the Registration Statement or 7 Prospectus. The aggregate of all pending legal or governmental proceedings to which the Company or any Subsidiary thereof is a party or of which any of their respective assets or properties is the subject which are not described in the Registration Statement and the Prospectus, including ordinary routine litigation incidental to the business, could not reasonably be expected to result in a Material Adverse Effect. (16) Accuracy of Exhibits. There are no contracts or documents which are required to be described in the Registration Statement, the Prospectus or the documents incorporated by reference therein or to be filed as exhibits thereto which have not been so described and/or filed as required. (17) Absence of Further Requirements. No filing with, or authorization, approval, consent, license, order registration, qualification or decree of, any court or governmental authority or agency is necessary or required for the performance by the Company of its obligations under this Agreement or in connection with the transactions contemplated under this Agreement or for the due execution, delivery or performance of the Indenture by the Company, except such as have been already obtained or as may be required under state securities laws. (18) Possession of Intellectual Property. The Company and its Subsidiaries own or possess, or can acquire on reasonable terms, adequate patents, patent rights, licenses, inventions, copyrights, know-how (including trade secrets and other unpatented and/or unpatentable proprietary or confidential information, systems or procedures), trademarks, service marks, trade names or other intellectual property (collectively, "Intellectual Property") necessary to carry on the business now operated by them, and neither the Company nor any of its Subsidiaries has received any notice or is otherwise aware of any infringement of or conflict with asserted rights of others with respect to any Intellectual Property or of any facts or circumstances which would render any Intellectual Property invalid or inadequate to protect the interest of the Company or any of its Subsidiaries therein, and which infringement or conflict (if the subject of any unfavorable decision, ruling or finding) or invalidity or inadequacy, singly or in the aggregate, would result in a Material Adverse Effect. (19) Possession of Licenses and Permits. The Company and its Subsidiaries possess such permits, licenses, approvals, consents and other authorizations (collectively, "Governmental Licenses") issued by the appropriate federal, state, local or foreign regulatory agencies or bodies necessary to conduct the business now conducted by them except where the absence of such Governmental Licenses would not have a Material Adverse Effect. (20) Tax Returns. All material United States federal income tax returns of the Company and its Subsidiaries required by law to be filed have been filed and all taxes shown by such returns or otherwise assessed, which are due and payable, have been paid, except for such taxes, if any, as are being contested in good faith and as to which adequate reserves have been provided. The Company and its Subsidiaries have filed all other material tax returns that are required to have been filed by them pursuant to applicable foreign, state, local 8 or other law except insofar as the failure to file such returns would not result in a Material Adverse Effect, and has paid all taxes due pursuant to such returns or pursuant to any assessment received by the Company and its Subsidiaries, except for such taxes, if any, as are being contested in good faith and as to which adequate reserves have been provided. (21) Environmental Laws. Except as described in the Registration Statement and the Prospectus and except such matters as would not, singly or in the aggregate, result in a Material Adverse Effect, (A) neither the Company nor any of its Subsidiaries is in violation of any federal, state, local or foreign statute, law, rule, regulation, ordinance, code, policy or rule of common law or any judicial or administrative order, consent, decree or judgment thereof, including any judicial or administrative order, consent, decree or judgment relating to pollution or protection of human health, the environment (including, without limitation, ambient air, surface water, groundwater, land surface or subsurface strata) or wildlife, including, without limitation, laws and regulations relating to the release or threatened release of chemicals, pollutants, contaminants, wastes, toxic substances, hazardous substances, petroleum or petroleum products (collectively, "Hazardous Materials") or to the manufacture, processing, distribution, use, treatment, storage, disposal, transport or handling of Hazardous Materials (collectively, "Environmental Laws"), (B) the Company and its Subsidiaries have all permits, authorizations and approvals required under any applicable Environmental Laws and are each in compliance with their requirements, and (C) are in compliance with all terms and conditions of any such permit, license or approval, except where such noncompliance with Environmental Laws, failure to receive required permits, licenses or other approvals or failure to comply with the terms and conditions of such permits, licenses or approvals would not, individually or in the aggregate result in a Material Adverse Effect. (22) Insurance. The Company maintains insurance coverage covering its properties, operations, personnel and businesses. In the Company's reasonable judgement, such insurance insures against such losses and risks as are adequate to protect the Company. The Company has not received notice from any insurer or agent of such insurer that substantial capital improvements or other expenditures will have to be made in order to continue such insurance; all such insurance is outstanding and duly in force on the date hereof and will be outstanding and duly in force at Closing Time. (23) No Stabilization. Neither the Company nor any of its officers, directors or controlling persons has taken, directly or indirectly, any action designed to cause or to result in, or that has constituted or which might reasonably be expected to constitute, the stabilization or manipulation of the price of any security of the Company to facilitate the sale or resale of the Securities. (24) Investment Company Act. The Company is not, and upon the issuance and sale of the Securities as herein contemplated and the application of the net proceeds therefrom as described in the Prospectus will not be an "investment company" or an entity "controlled" by an "investment company" as such terms are defined in the Investment 9 Company Act of 1940, as amended, and the rules and regulations of the Commission promulgated thereunder (the "1940 Act"). (b) Officers' Certificates. Any certificate signed by any officer of the Company or any Subsidiary and delivered to the Representatives or to counsel for the Underwriters in connection with the offering of the Securities shall be deemed a representation and warranty by the Company to each Underwriter as to the matters covered thereby on the date of such certificate. SECTION 2. Sale and Delivery to Underwriters; Closing. (a) Securities. On the basis of the representations and warranties herein contained and subject to the terms and conditions herein set forth, the Company agrees to sell to each Underwriter, severally and not jointly, and each Underwriter, severally and not jointly, agrees to purchase from the Company, at the price set forth in Schedule B-1 and Schedule B-2, the aggregate principal amount of respective Securities set forth in Schedule A-1 and Schedule A-2 opposite the name of such Underwriter, plus any additional principal amount of Securities which such Underwriter may become obligated to purchase pursuant to the provisions of Section 10 hereof. (b) Payment. Payment of the purchase price for, and delivery of certificates for the Securities shall be made at the office of Andrews & Kurth L.L.P., 600 Travis Street, Suite 4200, Houston, Texas 77002-3090, or at such other place as shall be agreed upon by the Representatives and the Company, at 10:00 A.M. (Eastern time) on the third (fourth, if the pricing occurs after 4:30 P.M. (Eastern time) on any given day) business day after the date hereof (unless postponed in accordance with the provisions of Section 10 hereof), or such other time not later than ten business days after such date as shall be agreed upon by the Representatives and the Company (such time and date of payment and delivery being herein called "Closing Time"). Payment shall be made to the Company by wire transfer of immediately available funds to a bank account designated by the Company against delivery to the Representatives for the respective accounts of the Underwriters of one or more global notes in the aggregate principal amount of the 2009 Notes and one or more global notes in the aggregate principal amount of the 2029 Debentures, collectively representing the Securities to be purchased by them. Delivery of the Securities shall be made through the facilities of the Depository Trust Company unless the Underwriters shall otherwise instruct. It is understood that each Underwriter has authorized the Representatives, for its account, to accept delivery of, receipt for, and make payment of the purchase price for, the Securities which it has severally agreed to purchase. The Representatives, individually and not as representatives of the Underwriters may (but shall not be obligated to) make payment of the purchase price for the Securities to be purchased by any Underwriter whose funds have not been received by the Closing Time, but such payment shall not relieve such Underwriter from its obligations hereunder. (c) Denominations; Registration. The Certificates for the Securities shall be in global form and in such denominations and registered in such names as the Representatives may request in writing at least one full business day prior to the Closing Time. The Securities which may be in temporary form will be made available for examination and packaging by the Representatives in the 10 City of New York not later than 10:00 A.M. (Eastern time) on the business day prior to the Closing Time. SECTION 3. Covenants of the Company. The Company covenants with each Underwriter participating in the offering of Securities, as follows: (a) Compliance with Securities Regulations and Commission Requests. The Company subject to Section 3(b), will comply with the requirements of Rule 430A, and will notify the Representatives immediately, and confirm the notice in writing, (i) when any post-effective amendment to the Registration Statement shall become effective, or any supplement to the Prospectus or any amended Prospectus shall have been filed, (ii) of the receipt of any comments from the Commission, (iii) of any request by the Commission for any amendment to the Registration Statement or any amendment or supplement to the Prospectus or for additional information, and (iv) of the issuance by the Commission of any stop order suspending the effectiveness of the Registration Statement or of any order preventing or suspending the use of any preliminary prospectus, or of the suspension of the qualification of the Securities for offering or sale in any jurisdiction, or of the initiation or threatening of any proceedings for any of such purposes. The Company will promptly effect the filings necessary pursuant to Rule 424(b) and will take such steps as it deems necessary to ascertain promptly whether the form of prospectus transmitted for filing under Rule 424(b) was received for filing by the Commission and, in the event that it was not, it will promptly file such prospectus. The Company will make every reasonable effort to prevent the issuance of any stop order and, if any stop order is issued, to obtain the lifting thereof at the earliest possible moment. (b) Filing of Amendments. The Company will give the Representatives notice of its intention to file or prepare any amendment to the Registration Statement or any amendment, supplement or revision to either the Prospectus included in the Registration Statement at the time it became effective or to the Prospectus, whether pursuant to the 1933 Act, the 1934 Act or otherwise, will furnish the Representatives with copies of any such documents a reasonable amount of time prior to such proposed filing or use, as the case may be, and will not file or use any such document to which the Representatives or counsel for the Underwriters shall reasonably object. (c) Delivery of Registration Statements. The Company has furnished or will deliver to the Representatives and counsel for the Underwriters, without charge, (i) signed copies of the Registration Statement as originally filed and of each amendment thereto (including exhibits filed therewith or incorporated by reference therein and documents incorporated or deemed to be incorporated by reference therein), (ii) copies of the Registration Statement and each amendment thereto in the form electronically filed with the Commission pursuant to EDGAR and (iii) signed copies of all consents and certificates of experts, and will also deliver to the Representatives, without charge, a conformed copy of the Registration Statement as originally filed and of each amendment thereto (without exhibits) for each of the Underwriters. The Registration Statement and any amendments or supplements thereto furnished to the Underwriters will be identical to the electronically transmitted copies thereof filed with the Commission pursuant to EDGAR, except to the extent permitted by Regulation S-T. 11 (d) Delivery of Prospectus. The Company has delivered to each Underwriter, without charge, as many copies of the prospectus and preliminary prospectus supplement as such Underwriter reasonably requested, and the Company hereby consents to the use of such copies for purposes permitted by the 1933 Act. The Company will furnish to each Underwriter, without charge, during the period when the Prospectus is required to be delivered under the 1933 Act or the 1934 Act, such number of copies of the Prospectus (as amended or supplemented) as such Underwriter may reasonably request. The Prospectus and any amendments or supplements thereto furnished to the Underwriters will be identical to the electronically transmitted copies thereof filed with the Commission pursuant to EDGAR, except to the extent permitted by Regulation S-T. (e) Continued Compliance with Securities Laws. The Company will comply with the 1933 Act and the 1933 Act Regulations and the 1934 Act and the 1934 Act Regulations so as to permit the completion of the distribution of the Securities as contemplated in this Agreement and the Prospectus. If at any time when a Prospectus is required by the 1933 Act or the 1934 Act to be delivered in connection with sales of the Securities, any event shall occur or condition shall exist as a result of which it is necessary, in the opinion of counsel for the Underwriters or for the Company, to amend the Registration Statement in order that the Registration Statement will not contain an untrue statement of a material fact or omit to state a material fact required to be stated therein or necessary to make the statements therein not misleading or to amend or supplement any Prospectus in order that the Prospectus will not include any untrue statement of a material fact or omit to state a material fact necessary in order to make the statements therein not misleading in the light of the circumstances existing at the time it is delivered to a purchaser, or if it shall be necessary, in the opinion of such counsel, at any such time to amend the Registration Statement or amend or supplement any Prospectus in order to comply with the requirements of the 1933 Act or the 1933 Act Regulations, the Company will promptly prepare and file with the Commission, subject to Section 3(b), such amendment or supplement as may be necessary to correct such statement or omission or to make the Registration Statement or the Prospectus comply with such requirements, and the Company will furnish to the Underwriters, without charge, such number of copies of such amendment or supplement as the Underwriters may reasonably request. (f) Blue Sky Qualifications. The Company will use its best efforts, in cooperation with the Underwriters, to qualify the Securities and any related Securities for offering and sale under the applicable securities laws of such states and other jurisdictions (domestic or foreign) as the Representatives may designate and to maintain such qualifications in effect for a period of not less than one year from the date of this Agreement; provided, however, that the Company shall not be obligated to file any general consent to service of process or to qualify as a foreign corporation or as a dealer in securities in any jurisdiction in which it is not so qualified or to subject itself to taxation in respect of doing business in any jurisdiction in which it is not otherwise so subject. In each jurisdiction in which the Securities have been so qualified, the Company will file such statements and reports as may be required by the laws of such jurisdiction to continue such qualification in effect for a period of not less than one year from the date of this Agreement. (g) Earnings Statement. The Company will timely file such reports pursuant to the 1934 Act as are necessary in order to make generally available to its security holders as soon as practicable 12 an earnings statement for the purposes of, and to provide the benefits contemplated by, the last paragraph of Section 11(a) of the 1933 Act. (h) Use of Proceeds. The Company will use the net proceeds received by it from the sale of the Securities in the manner specified in the Prospectus under "Use of Proceeds". (i) Restriction on Sale of Securities. During the period from the date of this agreement through the date that the Underwriters have completed their distribution of the Securities, the Company will not, without the prior written consent of the Representatives, directly or indirectly, sell, offer to sell, grant any option for the sale of, or otherwise dispose of, any debt securities of the Company. (j) Reporting Requirements. The Company, during the period when the Prospectus is required to be delivered under the 1933 Act or the 1934 Act, will file all documents required to be filed with the Commission pursuant to the 1934 Act within the time periods required by the 1934 Act and the 1934 Act Regulations. SECTION 4. Payment of Expenses. (a) Expenses. The Company will pay all expenses incident to the performance of its obligations under this Agreement, including (i) the preparation, printing and filing of the Registration Statement (including financial statements and exhibits) as originally filed and of each amendment thereto, (ii) the preparation, printing and delivery to the Underwriters of this Agreement, any Agreement among Underwriters, the Indentures, and such other documents as may be required in connection with the offering, purchase, sale, issuance or delivery of the Securities, (iii) the preparation, issuance and delivery of the Securities and any certificates for the Securities to the Underwriters, including any transfer taxes and any stamp or other duties payable upon the sale, issuance or delivery of the Securities to the Underwriters, (iv) the fees and disbursements of the Company's counsel, accountants and other advisors or agents (including transfer agents and registrars), as well as the fees and disbursements of the Trustees and their respective counsel, (v) the qualification of the Securities under state securities laws in accordance with the provisions of Section 3(f) hereof, including filing fees and the reasonable fees and disbursements of counsel for the Underwriters in connection therewith and in connection with the preparation, printing and delivery of the Blue Sky Survey, and any amendment thereto, (vi) the printing and delivery to the Underwriters of copies of each preliminary prospectus, and the Prospectus and any amendments or supplements thereto, (vii) the fees charged by nationally recognized statistical rating organizations for the rating of the Securities, if applicable, (viii) the fees and expenses incurred with respect to the listing of the Securities, if applicable, and (ix) the filing fees incident to, and the reasonable fees and disbursements of counsel to the Underwriters in connection with, the review, if any, by the National Association of Securities Dealers, Inc. (the "NASD") of the terms of the sale of the Securities. (b) Termination of Agreement. If this Agreement is terminated by the Representatives in accordance with the provisions of Section 5 or Section 9(a)(i) or Section 10 hereof, the Company shall reimburse the Underwriters for all of their reasonable out-of-pocket expenses, including the reasonable fees and disbursements of counsel for the Underwriters; provided, however, that such 13 reimbursement after termination pursuant to Section 10 shall be limited to non- defaulting Underwriters. SECTION 5. Conditions of Underwriters' Obligations. The obligations of the Underwriters to purchase and pay for the Securities are subject to the accuracy of the representations and warranties of the Company contained in Section 1 hereof or in certificates of any officer of the Company or any of its Subsidiaries delivered pursuant to the provisions hereof, to the performance by the Company of its covenants and other obligations hereunder, and to the following further conditions: (a) Effectiveness of Registration Statement. The Registration Statement has become effective under the 1933 Act and no stop order suspending the effectiveness of the Registration Statement shall have been issued under the 1933 Act and no proceedings for that purpose shall have been initiated or be pending or threatened by the Commission, and any request on the part of the Commission for additional information shall have been complied with to the reasonable satisfaction of counsel to the Underwriters. A prospectus containing information relating to the description of the Securities, the specific method of distribution and similar matters shall have been filed with the Commission in accordance with Rule 424(b)(1), (2), (3), (4) or (5), as applicable (or any required post-effective amendment providing such information shall have been filed and declared effective in accordance with the requirements of Rule 430A). (b) Opinion of Counsel for Company. At Closing Time, the Representatives shall have received the favorable opinion, dated as of Closing Time, of Baker & Botts, L.L.P. counsel for the Company, in form and substance satisfactory to counsel for the Underwriters, together with signed or reproduced copies of such letter for each of the other Underwriters, to the effect set forth in Exhibit A hereto and to such further effect as counsel to the Underwriters may reasonably request. In giving such opinion such counsel may rely, as to matters governed by the laws of jurisdictions other than the contract law of the State of New York, the federal law of the United States and the General Corporation Law of the State of Delaware, upon the opinions of counsel satisfactory to the Representatives. Such counsel may also state that, insofar as such opinion involves factual matters, they have relied, to the extent they deem proper, upon certificates of officers of the Company and its subsidiaries and certificates of public officials. (c) Opinion of Counsel for Underwriters. At Closing Time, the Representatives shall have received the favorable opinion, dated as of Closing Time, of Andrews & Kurth L.L.P., counsel for the Underwriters, together with signed or reproduced copies of such letter for each of the other Underwriters with respect to the matters set forth in clauses (i), (ii), (v) (vi) through (xi), inclusive, (xiv) and the penultimate paragraph of Exhibit A hereto. In giving such opinion such counsel may rely, as to all matters governed by the laws of jurisdictions other than the law of the State of New York, the federal law of the United States and the General Corporation Law of the State of Delaware, upon the opinions of counsel satisfactory to the Representatives. Such counsel may also state that, insofar as such opinion involves factual matters, they have relied, to the extent they deem proper, upon certificates of officers of the Company and its subsidiaries and certificates of public officials. 14 (d) Officers' Certificate. At Closing Time, there shall not have been, since the date hereof or since the respective dates as of which information is given in the Prospectus, any material adverse change or any development involving a prospective material adverse change in the condition, financial or otherwise, or in the earnings or business affairs of the Company and its Subsidiaries considered as one enterprise, whether or not arising in the ordinary course of business, and the Representatives shall have received a certificate of the Company, executed by the President or a Vice President of the Company and the chief financial officer or chief accounting officer of the Company, dated as of Closing Time, to the effect that (i) there has been no such material adverse change, (ii) the representations and warranties in Section 1(a) hereof are true and correct with the same force and effect as though expressly made at and as of the Closing Time, (iii) the Company has complied in all material respects with all agreements and satisfied all conditions on its part to be performed or satisfied at or prior to the Closing Time, (iv) no stop order suspending the effectiveness of the Registration Statement has been issued and no proceedings for that purpose have been initiated or, to the Company's knowledge, threatened by the Commission. (e) Accountant's Comfort Letters. At the time of the execution of this Agreement, the Representatives shall have received from Arthur Andersen LLP, independent accountants for the Company and PricewaterhouseCoopers LLP, former independent accountants for Quaker State, letters dated such date, in form and substance satisfactory to the Representatives, together with signed or reproduced copies of such letter for each of the Underwriters, containing statements and information of the type ordinarily included in accountants' "comfort letters" to underwriters with respect to the financial statements and certain financial information in the Registration Statement and the Prospectus. (f) Bring-down Comfort Letter. At Closing Time, the Representatives shall have received from Arthur Andersen LLP and PricewaterhouseCoopers LLP letters, dated as of Closing Time, to the effect that they reaffirm the statements made in the letter furnished pursuant to subsection (e) of this Section 5, except that the specified date referred to shall be a date not more than three business days prior to the Closing Time. (g) Maintenance of Rating. At Closing Time, the Securities shall be rated at least Baa2 by Moody's Investor's Service Inc. and BBB- by Standard & Poor's Ratings Group, a division of McGraw-Hill, Inc., and the Company shall have delivered to the Representatives a letter dated the Closing Time, from each such rating agency, or other evidence satisfactory to the Representatives, confirming that the Securities have such ratings; and since the date of this Agreement, there shall not have occurred a downgrading in the rating assigned to the Securities or any of the Company's other securities by any "nationally recognized statistical rating agency", as that term is defined by the Commission for purposes of Rule 436(g)(2) under the 1933 Act, and no such organization shall have publicly announced that it has under surveillance or review its rating of the Securities or any of the Company's other securities. (h) Additional Documents. At Closing Time, counsel for the Underwriters shall have been furnished with such documents and opinions as they may reasonably require for the purpose of enabling them to pass upon the issuance and sale of the Securities as herein contemplated, or in order to evidence the accuracy of any of the representations or warranties, or the fulfillment of any 15 of the conditions, herein contained; and all proceedings taken by the Company in connection with the issuance and sale of the Securities as herein contemplated shall be reasonably satisfactory in form and substance to the Representatives and counsel for the Underwriters. (i) Termination of Agreement. If any condition specified in this Section shall not have been fulfilled when and as required to be fulfilled, this Agreement may be terminated by the Representatives by notice to the Company at any time at or prior to Closing Time, and such termination shall be without liability of any party to any other party except as provided in Section 4 and except that Sections 1, 6, 7 and 8 shall survive any such termination and remain in full force and effect. SECTION 6. Indemnification. (a) Indemnification of Underwriters by the Company. The Company agrees to indemnify and hold harmless each Underwriter and each person, if any, who controls any Underwriter within the meaning of Section 15 of the 1933 Act or Section 20 of the 1934 Act as follows: (i) against any and all loss, liability, claim, damage and expense whatsoever, as incurred, arising out of any untrue statement or alleged untrue statement of a material fact contained in the Registration Statement (or any amendment thereto), including the Rule 430A Information and the Rule 434 Information deemed to be a part thereof, if applicable, or the omission or alleged omission therefrom of a material fact required to be stated therein or necessary to make the statements therein not misleading or arising out of any untrue statement or alleged untrue statement of a material fact included in any preliminary prospectus or the Prospectus (or any amendment or supplement thereto), or the omission or alleged omission therefrom of a material fact necessary in order to make the statements therein, in the light of the circumstances under which they were made, not misleading; (ii) against any and all loss, liability, claim, damage and expense whatsoever, as incurred, to the extent of the aggregate amount paid in settlement of any litigation, or any investigation or proceeding by any governmental agency or body, commenced or threatened, or of any claim whatsoever based upon any such untrue statement or omission, or any such alleged untrue statement or omission; provided that (subject to Section 6(d) below) any such settlement is effected with the written consent of the Company; and (iii) against any and all expense whatsoever, as incurred (including the fees and disbursements of counsel chosen by the Representatives), reasonably incurred in investigating, preparing or defending against any litigation, or any investigation or proceeding by any governmental agency or body, commenced or threatened, or any claim whatsoever based upon any such untrue statement or omission, or any such alleged untrue statement or omission, to the extent that any such expense is not paid under (i) or (ii) above; provided, however, that this indemnity agreement shall not apply to any loss, liability, claim, damage or expense to the extent arising out of any untrue statement or omission or alleged untrue statement 16 or omission made in reliance upon and in conformity with written information furnished to the Company by any Underwriter through the Representatives expressly for use in the Registration Statement (or any amendment thereto), including the Rule 430A Information deemed to be a part thereof, if applicable, or any preliminary prospectus or the Prospectus (or any amendment or supplement thereto). (b) Indemnification of Company, Directors and Officers. Each Underwriter severally agrees to indemnify and hold harmless the Company, its directors, each of its officers who signed the Registration Statement, and each person, if any, who controls the Company within the meaning of Section 15 of the 1933 Act or Section 20 of the 1934 Act against any and all loss, liability, claim, damage and expense described in the indemnity contained in subsection (a) of this Section, as incurred, but only with respect to untrue statements or omissions, or alleged untrue statements or omissions, made in the Registration Statement (or any amendment thereto), including the Rule 430A Information deemed to be a part thereof, or any preliminary prospectus or the Prospectus (or any amendment or supplement thereto) in reliance upon and in conformity with written information furnished to the Company by such Underwriter through the Representatives expressly for use in the Registration Statement (or any amendment thereto) or such preliminary prospectus or the Prospectus (or any amendment or supplement thereto). (c) Actions against Parties; Notification. Each indemnified party shall give notice as promptly as reasonably practicable to each indemnifying party of any action commenced against it in respect of which indemnity may be sought hereunder, but failure to so notify an indemnifying party shall not relieve such indemnifying party from any liability hereunder to the extent it is not materially prejudiced as a result thereof and in any event shall not relieve it from any liability which it may have otherwise than on account of this indemnity agreement. If any such action is brought against any indemnified party and it notifies the indemnifying party of its commencement, the indemnifying party will be entitled to participate in and, to the extent that it elects by delivering written notice to the indemnified party promptly after receiving notice of the commencement of the action from the indemnified party, jointly with any other indemnifying party similarly notified, to assume the defense of the action, with counsel satisfactory to the indemnified party, and after notice from the indemnifying party to the indemnified party of its election to assume the defense, the indemnifying party will not be liable to the indemnified party for any legal or other expenses except as provided below and except for the reasonable costs of investigation subsequently incurred by the indemnified party in connection with the defense. The indemnified party will have the right to employ its own counsel in any such action, but the fees, expenses and other charges of such counsel will be at the expense of such indemnified party unless (1) the employment of counsel by the indemnified party has been authorized in writing by the indemnifying party, (2) the indemnified party has reasonably concluded (based on advice of counsel) that there may be legal defenses available to it or other indemnified parties that are different from or in addition to those available to the indemnifying party, (3) a conflict or potential conflict exists (based on advice of counsel to the indemnified party) between the indemnified party and the indemnifying party (in which case the indemnifying party will not have the right to direct the defense of such action on behalf of the indemnified party) or (4) the indemnifying party has not in fact employed counsel satisfactory to the indemnified party to assume the defense of such action within a reasonable time after receiving notice of the commencement of the action, in each of which cases the reasonable fees, disbursements 17 and other charges of counsel will be at the expense of the indemnifying party or parties. An indemnifying party may participate at its own expense in the defense of any such action; provided, however, that counsel to the indemnifying party shall not (except with the consent of the indemnified party) also be counsel to the indemnified party. In no event shall the indemnifying parties be liable for fees and expenses of more than one counsel (in addition to any local counsel) separate from their own counsel for all indemnified parties in connection with any one action or separate but similar or related actions in the same jurisdiction arising out of the same general allegations or circumstances. No indemnifying party shall, without the prior written consent of the indemnified parties, settle or compromise or consent to the entry of any judgment with respect to any litigation, or any investigation or proceeding by any governmental agency or body, commenced or threatened, or any claim whatsoever in respect of which indemnification or contribution could be sought under this Section 6 or Section 7 hereof (whether or not the indemnified parties are actual or potential parties thereto), unless such settlement, compromise or consent (i) includes an unconditional release of each indemnified party from all liability arising out of such litigation, investigation, proceeding or claim and (ii) does not include a statement as to or an admission of fault, culpability or a failure to act by or on behalf of any indemnified party. (d) Settlement without Consent if Failure to Reimburse. If at any time an indemnified party shall have requested an indemnifying party to reimburse the indemnified party for fees and expenses of counsel, such indemnifying party agrees that it shall be liable for any settlement of the nature contemplated by Section 6(c) effected without its written consent if (i) such settlement is entered into more than 45 days after receipt by such indemnifying party of the aforesaid request, (ii) such indemnifying party shall have received notice of the terms of such settlement at least 30 days prior to such settlement being entered into and (iii) such indemnifying party shall not have reimbursed such indemnified party in accordance with such request prior to the date of such settlement. SECTION 7. Contribution. If the indemnification provided for in Section 6 hereof is for any reason unavailable to or insufficient to hold harmless an indemnified party in respect of any losses, liabilities, claims, damages or expenses referred to therein, then each indemnifying party shall contribute to the aggregate amount of such losses, liabilities, claims, damages and expenses incurred by such indemnified party, as incurred, (i) in such proportion as is appropriate to reflect the relative benefits received by the Company, on the one hand, and the Underwriters, on the other hand, from the offering of the Securities pursuant to this Agreement or (ii) if the allocation provided by clause (i) is not permitted by applicable law, in such proportion as is appropriate to reflect not only the relative benefits referred to in clause (i) above but also the relative fault of the Company, on the one hand, and of the Underwriters, on the other hand, in connection with the statements or omissions which resulted in such losses, liabilities, claims, damages or expenses, as well as any other relevant equitable considerations. The relative benefits received by the Company, on the one hand, and the Underwriters, on the other hand, in connection with the offering of the Securities pursuant to this Agreement shall be deemed to be in the same respective proportions as the total net proceeds from the offering of such Securities (before deducting expenses) received by the Company and the total underwriting 18 discounts received by the Underwriters, in each case as set forth on the cover of the Prospectus, bear to the aggregate public offering price of such Securities as set forth on such cover. The relative fault of the Company, on the one hand, and the Underwriters, on the other hand, shall be determined by reference to, among other things, whether any such untrue or alleged untrue statement of a material fact or omission or alleged omission to state a material fact relates to information supplied by the Company or by the Underwriters and the parties' relative intent, knowledge, access to information and opportunity to correct or prevent such statement or omission. The Company and the Underwriters agree that it would not be just and equitable if contribution pursuant to this Section 7 were determined by pro rata allocation (even if the Underwriters were treated as one entity for such purpose) or by any other method of allocation which does not take account of the equitable considerations referred to above in this Section 7. The aggregate amount of losses, liabilities, claims, damages and expenses incurred by an indemnified party and referred to above in this Section 7 shall be deemed to include any legal or other expenses reasonably incurred by such indemnified party in investigating, preparing or defending against any litigation, or any investigation or proceeding by any governmental agency or body, commenced or threatened, or any claim whatsoever based upon any such untrue or alleged untrue statement or omission or alleged omission. Notwithstanding the provisions of this Section 7, no Underwriter shall be required to contribute any amount in excess of the amount by which the total price at which the Securities underwritten by it and distributed to the public exceeds the amount of any damages which such Underwriter has otherwise been required to pay by reason of such untrue or alleged untrue statement or omission or alleged omission. No person guilty of fraudulent misrepresentation (within the meaning of Section 11(f) of the 1993 Act) shall be entitled to contribution from any person who was not guilty of such fraudulent misrepresentation. For purposes of this Section 7, each person, if any, who controls a Underwriter within the meaning of Section 15 of the 1933 Act or Section 20 of the 1934 Act shall have the same rights to contribution as such Underwriter, and each director of the Company, each officer of the Company who signed the Registration Statement, and each person, if any, who controls the Company within the meaning of Section 15 of the 1933 Act or Section 20 of the 1934 Act shall have the same rights to contribution as the Company. The Underwriters' respective obligations to contribute pursuant to this Section 7 are several in proportion to the number of Securities set forth opposite their respective names in Schedule A-1 and Schedule A-2 hereto, and not joint. SECTION 8. Representations, Warranties and Agreements to Survive Delivery. All representations, warranties and agreements contained in this Agreement or in certificates of officers of the Company or any of its Subsidiaries submitted pursuant hereto or thereto shall remain operative and in full force and effect, regardless of any investigation made by or on behalf of any Underwriter or controlling person, or by or on behalf of the Company, and shall survive delivery of and payment for the Securities. 19 SECTION 9. Termination of Agreement. (a) Termination; General. The Representatives may terminate this Agreement, by notice to the Company, at any time at or prior to Closing Time (i) if there has been, since the time of execution of this Agreement or since the respective dates as of which information is given in the Prospectus, any material adverse change or any development involving a prospective material adverse change in the condition, financial or otherwise, or in the earnings or business affairs of the Company whether or not arising in the ordinary course of business, or (ii) if there has occurred any material adverse change in the financial markets in the United States or the international financial markets, any outbreak of hostilities or escalation thereof or other calamity or crisis or any change or development involving a prospective change in national or international political, financial or economic conditions, in each case the effect of which is such as to make it, in the judgment of the Representatives, impracticable to market the Securities or to enforce contracts for the sale of the Securities, or (iii) if trading in any securities of the Company has been suspended or materially limited by the Commission or the New York Stock Exchange, or if trading generally on the American Stock Exchange or the New York Stock Exchange or in the Nasdaq National Market has been suspended or materially limited, or minimum or maximum prices for trading have been fixed, or maximum ranges for prices have been required, by any of said exchanges or by such system or by order of the Commission, the National Association of Securities Dealers, Inc. or any other governmental authority, or (iv) if a banking moratorium has been declared by either Federal or New York authorities. (b) Liabilities. If this Agreement is terminated pursuant to this Section 9, such termination shall be without liability of any party to any other party except as provided in Section 4 hereof, and provided further that Sections 1, 6, 7 and 8 shall survive such termination and remain in full force and effect. SECTION 10. Default by One or More of the Underwriters. If one or more of the Underwriters shall fail at the Closing Time to purchase the Securities which it or they are obligated to purchase under this Agreement (the "Defaulted Securities"), then the Representatives shall have the right, within 24 hours thereafter, to make arrangements for one or more of the non-defaulting Underwriters, or any other underwriters, to purchase all, but not less than all, of the Defaulted Securities in such amounts as may be agreed upon and upon the terms herein set forth; if, however, the Representatives shall not have completed such arrangements within such 24-hour period, then: (a) if the number of Defaulted Securities does not exceed 10% of the aggregate principal amount of the Securities to be purchased, each of the non- defaulting Underwriters shall be obligated, severally and not jointly, to purchase the full amount thereof in the proportions that their respective underwriting obligations hereunder bear to the underwriting obligations of all non-defaulting Underwriters, or (b) if the number of Defaulted Securities exceeds 10% of the aggregate principal amount of the Securities to be purchased hereunder, this Agreement shall terminate without liability on the part of any non-defaulting Underwriter. 20 No action taken pursuant to this Section 10 shall relieve any defaulting Underwriter from liability in respect of its default. In the event of any such default which does not result in the termination of this Agreement, either the Representatives or the Company shall have the right to postpone the Closing Time, for a period not exceeding seven days in order to effect any required changes in the Registration Statement or the Prospectus or in any other documents or arrangements. As used herein, the term "Underwriter" includes any person substituted for a Underwriter under this Section 10. SECTION 11. Notices. All notices and other communications hereunder shall be in writing and shall be deemed to have been duly given if mailed or transmitted by any standard form of telecommunication. Notices to the Underwriters shall be directed to the Representatives, c/o Merrill Lynch at 1221 McKinney, Houston, Texas 77010, attention of William C. Montgomery and notices to the Company shall be directed to it at Pennzoil-Quaker State Company, Pennzoil Place, Houston, Texas 77252-2967. SECTION 12. Parties. This Agreement shall inure to the benefit of and be binding upon the Company and the Underwriters and their respective successors. Nothing expressed or mentioned in this Agreement is intended or shall be construed to give any person, firm or corporation, other than the Underwriters and the Company and their respective successors and the controlling persons and officers and directors referred to in Sections 6 and 7 and their heirs and legal representatives, any legal or equitable right, remedy or claim under or in respect of this Agreement or any provision herein contained. This Agreement and all conditions and provisions hereof and thereof are intended to be for the sole and exclusive benefit of the parties hereto and thereto and their respective successors, and said controlling persons and officers and directors and their heirs and legal representatives, and for the benefit of no other person, firm or corporation. No purchaser of Securities from any Underwriter shall be deemed to be a successor by reason merely of such purchase. SECTION 13. GOVERNING LAW AND TIME. THIS AGREEMENT AND THE TERMS AGREEMENT SHALL BE GOVERNED BY AND CONSTRUED IN ACCORDANCE WITH THE LAWS OF THE STATE OF NEW YORK. SECTION 14. Effect of Headlines. The Article and Section headings herein and any table of contents are for convenience only and shall not affect the construction hereof. 21 If the foregoing is in accordance with your understanding of our agreement, please sign and return to the Company a counterpart hereof, whereupon this Agreement, along with all counterparts, will become a binding agreement among the Underwriters and the Company in accordance with its terms. Very truly yours, PENNZOIL-QUAKER STATE COMPANY By: /s/ David P. Alderson II --------------------------------- Name: David P. Aldserson II Title: Group Vice President, Chief Financial Officer and Treasurer 22 CONFIRMED AND ACCEPTED, as of the date first above written: CHASE SECURITIES INC. LEHMAN BROTHERS INC. MERRILL LYNCH & CO. Merrill Lynch, Pierce, Fenner & Smith, Incorporated By: CHASE SECURITIES INC. By: /s/ William Dexter Rogers ------------------------------ Authorized Signatory By: LEHMAN BROTHERS INC. By: /s/ Grant Porter ------------------------------ Authorized Signatory By: MERRILL LYNCH, PIERCE, FENNER & SMITH, INCORPORATED By: /s/ William B. Montgomery ------------------------------ Authorized Signatory For themselves and as the Representatives of the other Underwriters. 23 SCHEDULE A-1 $200,000,000 6 3/4% Notes due 2009 Principal Amount of Name of Underwriter 2009 Notes ------------------- ------------ Chase Securities Inc...................................... $ 44,000,000 Lehman Brothers Inc....................................... 50,000,000 Merrill Lynch, Pierce, Fenner & Smith Incorporated.................................. 64,000,000 Deutsche Bank Securities Inc.............................. 6,000,000 J.P. Morgan Securities Inc................................ 6,000,000 Morgan Stanley& Co. Incorporated.......................... 6,000,000 NationsBanc Montgomery Securities LLC..................... 6,000,000 PaineWebber Incorporated.................................. 6,000,000 Salomon Smith Barney Inc.................................. 6,000,000 Warburg Dillon Read LCC................................... 6,000,000 ------------ Total..................................................... $200,000,000 ============ 24 SCHEDULE A-2 $400,000,000 7 3/4% Debentures due 2029 Principal Amount of Name of Underwriter 2029 Debentures ------------------- --------------- Chase Securities Inc.................................... $ 88,000,000 Lehman Brothers Inc..................................... 100,000,000 Merrill Lynch, Pierce, Fenner & Smith Incorporated................................ 128,000,000 Deutsche Bank Securities Inc............................ 12,000,000 J.P. Morgan Securities Inc.............................. 12,000,000 Morgan Stanley & Co. Incorporated....................... 12,000,000 NationsBanc Montgomery Securities LLC................... 12,000,000 PaineWebber Incorporated................................ 12,000,000 Salomon Smith Barney Inc................................ 12,000,000 Warburg Dillon Read LCC................................. 12,000,000 ------------ Total................................................... $400,000,000 ============ 25 SCHEDULE B-1 PENNZOIL-QUAKER STATE COMPANY $200,000,000 6 3/4% Notes due 2009 1. The initial public offering price of the 2009 Notes shall be 99.490% of the principal amount thereof, plus accrued interest, if any, from the date of issuance. 2. The purchase price to be paid by the Underwriters for the 2009 Notes shall be 98.840% of the principal amount thereof. 3. The interest rate on the 2009 Notes shall be 6.75% per annum. 4. The Notes will be redeemable as a whole or in part, at the option of the Company at any time at a redemption price equal to the greater of (i) 100% of the principal amount of the Notes to be redeemed and (ii) the sum of the present values of the remaining scheduled payments of principal and interest on the Notes discounted to the redemption date on a semiannual basis (assuming a 360-day year consisting of twelve 30-day months) at the Treasury Rate (as defined in the Indenture) plus 25 basis points, plus accrued interest thereon to the date of redemption. 26 SCHEDULE B-2 PENNZOIL-QUAKER STATE COMPANY $400,000,000 7 3/8% Debentures due 2029 1. The initial public offering price of the 2029 Debentures shall be 99.479% of the principal amount thereof, plus accrued interest, if any, from the date of issuance. 2. The purchase price to be paid by the Underwriters for the 2029 Debentures shall be 98.622% of the principal amount thereof. 3. The interest rate on the 2029 Debentures shall be 7.375% per annum. 4. The Debentures will be redeemable as a whole or in part, at the option of the Company at any time at a redemption price equal to the greater of (i) 100% of the principal amount of the Debentures to be redeemed and (ii) the sum of the present values of the remaining scheduled payments of principal and interest on the Debentures discounted to the redemption date on a semiannual basis (assuming a 360-day year consisting of twelve 30-day months) at the Treasury Rate (as defined in the Indenture) plus 35 basis points, plus accrued interest thereon to the date of redemption. 27 Exhibit A FORM OF OPINION OF COMPANY'S COUNSEL TO BE DELIVERED PURSUANT TO SECTION 5(b) (i) The Company is a corporation duly incorporated and validly existing in good standing under the laws of the State of Delaware. (ii) The Company has corporate power and authority to own, lease and operate its properties and to conduct its business as described in the Prospectus and to execute and deliver and perform its obligations under the Underwriting Agreement. (iii) Each Subsidiary is a corporation duly incorporated and validly existing in good standing under the laws of the jurisdiction of its incorporation, has corporate power and authority to own, lease and operate its properties and to conduct its business as described in the Prospectus; except as otherwise disclosed in the Registration Statement, all of the issued and outstanding capital stock of each Subsidiary is validly issued, fully paid and non-assessable and, to the best of our knowledge, is owned by the Company, directly or through Subsidiaries, free and clear of any security interest, mortgage, pledge, lien, encumbrance, claim or equity; none of the outstanding shares of capital stock of any Subsidiary was issued in violation of the preemptive or similar rights of any securityholder of such Subsidiary. (iv) The Underwriting Agreement has been duly authorized, executed and delivered by the Company. (v) The Indenture has been duly authorized, executed and delivered by the Company and (assuming the due authorization, execution and delivery thereof by the Trustee) constitutes a valid and binding agreement of the Company, enforceable against the Company in accordance with its terms, except as the enforcement thereof may be limited by bankruptcy, insolvency (including, without limitation, all laws relating to fraudulent transfers), reorganization, moratorium or similar laws affecting enforcement of creditors' rights and remedies generally and except as enforcement thereof is subject to general principles of equity (regardless of whether enforcement is considered in a proceeding in equity or at law). (vi) The Securities are in the form contemplated by the Indenture, have been duly authorized by the Company and, assuming the Securities have been authenticated by the Trustee in the manner provided for in the Indenture (which we have not independently determined) and delivered against payment of the consideration therefor specified in the Underwriting Agreement, will constitute valid and binding obligations of the Company, enforceable against the Company in accordance with their terms, except as the enforcement thereof may be limited by bankruptcy, insolvency (including, without limitation, all laws relating to fraudulent transfers), reorganization, moratorium or similar laws affecting enforcement of creditors' rights and remedies generally and except as enforcement thereof is subject to general principles of equity (regardless of whether A-1 enforcement is considered in a proceeding in equity or at law), and each registered holder thereof is entitled to the benefits of the Indenture. (vii) The Indenture has been duly qualified under the 1939 Act. (viii) The Securities and the Indenture conform as to legal matters in all material respects to the descriptions thereof contained in the Prospectus and are in substantially the form filed or incorporated by reference, as the case may be, as an exhibit to the Registration Statement. (ix) The Registration Statement has been declared effective under the 1933 Act; any required filing of the Prospectus pursuant to Rule 424(b) has been made in the manner and within the time period required by Rule 424(b); and, to the best of our knowledge, no stop order suspending the effectiveness of the Registration Statement has been issued and no proceedings for that purpose have been instituted or are pending or threatened under the 1933 Act. (x) The Registration Statement and the Prospectus, excluding the documents incorporated by reference therein (other than the financial statements and other financial data and supporting schedules included therein or omitted therefrom and the Trustee's Statement of Eligibility on Form T-1 (the "Form T- 1"), as to which we express no opinion) as of their respective effective or issue dates appear on their face to have been appropriately responsive in all material respects with the requirements of the 1933 Act and the 1933 Act Regulations. (xi) The documents incorporated by reference in the Prospectus (other than the financial statements, other financial data and supporting schedules included therein or omitted therefrom, as to which we express no opinion, and except to the extent that any statement therein is modified or superseded in the Prospectus), as of the dates they became effective or were filed with the Commission, as the case may be, appear on their face to be appropriately responsive in all material respects with the requirements of the 1934 Act and the 1934 Act Regulations. (xii) Except as set forth in the Prospectus (or incorporated by reference therein), we do not know of any action, suit, proceeding, inquiry or investigation pending or threatened against the Company or any of its subsidiaries, or to which the property of the Company or any of its subsidiaries is subject, before or brought by any court or governmental agency or body, domestic or foreign, that is material to the Company and its consolidated subsidiaries taken as a whole. (xiii) We do not know of any statutes or regulations or any pending or threatened legal or governmental proceedings required to be described in the Prospectus which are not described as required, nor of any material contracts or documents of a character required to be described in the Registration Statement or Prospectus or to be filed or incorporated as exhibits to the Registration Statement which are not described and filed or incorporated as required. (xiv) No authorization, approval, consent or license of any regulatory body or authority (other than under the 1933 Act, the 1939 Act and the securities or Blue Sky laws of the various states) and no approval of the stockholders of the Company is required for the valid A-2 authorization, issuance, sale and delivery of the Securities by the Company, or for the execution, delivery or performance of the Indenture. (xv) The execution and delivery of the Underwriting Agreement and the Indenture, the consummation of the transactions contemplated in the Underwriting Agreement and compliance with the terms of the Underwriting Agreement and the Indenture do not and will not conflict with or result in a breach of any of the terms or provisions of, or constitute a default under, the charter or by-laws of the Company or any of the Subsidiaries, or, to our knowledge, any indenture, mortgage or other agreement or instrument to which the Company or any of the Subsidiaries is a party or by which they or any of their property is bound, or any existing applicable law, rule, regulation, or, to our knowledge, any judgment, order or decree of any government, governmental instrumentality or court, domestic or foreign, having jurisdiction over the Company or any of the Subsidiaries or any of their properties, which is material to the Company and its Subsidiaries, considered as one enterprise. (xvi) The Company is not an "investment company" or an entity "controlled" by an "investment company," as such terms are defined in the 1940 Act. We have participated in conferences with officers and other representatives of the Company, counsel employed by the Company, representatives of the independent accountants of the Company and Quaker State, representatives of the independent engineers of the Company and your representatives and your counsel at which the contents of the Registration Statement and the Prospectus and related matters were discussed. Although we are not passing upon and do not assume any responsibility for the accuracy, completeness or fairness of the statements contained in the Registration Statement or the Prospectus (except for the statements referred to in paragraph (viii), upon which we are passing), we advise you that, on the basis of the foregoing (relying in part upon the factual statements of officers and other representatives of the Company), no facts have come to our attention which lead us to believe that the Registration Statement (except for the financial statements and other financial data included therein or omitted therefrom, and the Form T-1, as to which we have not been asked to comment), at the time such Registration Statement became effective, contained an untrue statement of a material fact or omitted to state a material fact required to be stated therein or necessary to make the statements therein not misleading or that the Prospectus (except for the financial statements and other financial data included therein or omitted therefrom, and the Form T-1, as to which we have not been asked to comment), at the time the Prospectus was issued, or at the Closing Time, contained or contains an untrue statement of material fact or omitted or omits to state a material fact necessary in order to make the statements therein, in light of the circumstances under which they were made, not misleading. 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