Registration No. 33-50573 SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 POST-EFFECTIVE AMENDMENT NO.1 TO FORM S-8 REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933 DIAMOND SHAMROCK, INC. (Exact name of registrant as specified in its charter) Delaware 74-2456753 (State or other jurisdiction of (IRS Employer incorporation or organization) Identification No.) 9830 Colonnade Boulevard San Antonio, Texas 78230 (Address of Principal Executive (Zip Code) Offices) DIAMOND SHAMROCK, INC. 401(K) RETIREMENT SAVINGS PLAN (Full title of the plan) Timothy J. Fretthold Senior Vice President/Group Executive and General Counsel 9830 Colonnade Boulevard San Antonio, Texas 78230 (Name and address of agent for service) (210) 641-6800 (Telephone number, including area code, of agent for service) This Post-Effective Amendment No. 1 to Form S-8 is being filed to include, as Exhibit 4.1, the signed Diamond Shamrock, Inc. 401(k) Retirement Savings Plan. PART II INFORMATION REQUIRED IN THE REGISTRATION STATEMENT Item 8. Exhibits 4.1 Diamond Shamrock, Inc.401(k) Retirement Savings Plan. 4.2 Rights Agreement between the Company and Ameritrust Company, National Association, as Rights Agent, dated March 6, 1990 (Exhibit 2 to the Company's Form 8-A Registration Statement dated March 6, 1990 (the "Form 8-A")).* 4.3 Certificate of Incorporation of the Company (Exhibit 3.1 to the Company's Form 10 Registration Statement No. 1-9409 (the "Form 10")), as amended by a Certificate of Designations Establishing $2.00 Convertible Exchangeable Preferred Stock (an amended form of which is Exhibit 4.3 to the Company's Form S-1 Registration Statement No. 33-21991) and by a Certificate of Designations Establishing Series A Junior Participating Preferred Stock (a form of which is Exhibit 3 to the Company's Form 8-A).* 4.4 By-laws of the Company (Exhibit 3.2 to the Form 10).* 15.1 Independent Accountants' Awareness Letter.** 23.1 Consent of Price Waterhouse LLP.** 24.1 Powers of Attorney of directors and officers of the Company.*** 24.2 Certificate regarding resolutions of the Board of Directors of the Company.** * Each document marked by an asterisk is incorporated herein by reference to the designated document previously filed with the Commission. **Each document marked by two asterisks was previously filed as part of Registration Statement No. 33-50573. ***Powers of Attorney of directors and officers of the Company were previously filed as part of Registration Statement No. 33-50573, except for the ones filed herewith. SIGNATURES Pursuant to the requirements of the 1933 Act, the Company certifies that it has reasonable grounds to believe that it meets all of the requirements for filing on Form S-8 and has duly caused this Post-Effective Amendment No. 1 to Form S-8 to be signed on its behalf by the undersigned, thereunto duly authorized, in the City of San Antonio, Texas, on the 12th day of December, 1995. DIAMOND SHAMROCK, INC. By: * R.R. Hemminghaus Chairman of the Board and Chief Executive Officer Pursuant to the requirements of the 1933 Act, this Post-Effective Amendment No. 1 to Form S-8 has been signed by the following persons in the capacities and on the date indicated: Signature Title Date *R.R. Hemminghaus Chairman of the Board December 12, 1995 and Chief Executive Officer *R.C. Becker Vice President and December 12, 1995 Treasurer (Principal Financial Officer) *Gary E. Johnson Vice President and December 12, 1995 Controller(Principal Accounting Officer) *B. Charles Ames Director December 12, 1995 *E. Glenn Biggs Director December 12, 1995 *W.E. Bradford Director December 12, 1995 *Lauro F. Cavazos Director December 12, 1995 *W.H. Clark Director December 12, 1995 *William L. Fisher Director December 12, 1995 *Bob Marbut Director December 12, 1995 *Katherine D. Ortega Director December 12, 1995 Pursuant to the requirements of the Securities Act of 1933, the Diamond Shamrock, Inc. Employee Benefits Committee has duly caused this registration statement to be signed on its behalf by the undersigned, thereunto duly authorized, in the City of San Antonio, Texas, on December 12, 1995. DIAMOND SHAMROCK, INC. 401(K) RETIREMENT SAVINGS PLAN By: *William R. Klesse Chairman, Diamond Shamrock, Inc. Employee Benefits Committee Timothy J. Fretthold, by signing his name hereto, does hereby sign this Post-Effective Amendment No. 1 to Form S-8 on behalf of Diamond Shamrock, Inc., the Diamond Shamrock, Inc. Employee Benefits Committee, and each of the above- named officers and directors of Diamond Shamrock, Inc. pursuant to powers of attorney executed on behalf of the Company, the chairman of the Committee, and each of such officers and directors. *By: /s/ TIMOTHY J. FRETTHOLD Timothy J. Fretthold Attorney-in-fact December 12, 1995 INDEX TO EXHIBITS Exhibit No. Exhibit 4.1 Diamond Shamrock, Inc. Long-Term Incentive Plan, as amended effective May 2, 1995. 4.2 Rights Agreement between the Company and Ameritrust Company, National Association, as Rights Agent, dated March 6, 1990 (Exhibit 2 to the Company's Form 8-A Registration Statement dated March 6, 1990 (the "Form 8-A")).* 4.3 Certificate of Incorporation of the Company (Exhibit 3.1 to the Company's Form 10 Registration Statement No. 1-9409 (the "Form 10")), as amended by a Certificate of Designations Establishing $2.00 Convertible Exchangeable Preferred Stock (an amended form of which is Exhibit 4.3 to the Company's Form S-1 Registration Statement No. 33-21991) and by a Certificate of Designations of Series A Junior Participating Preferred Stock (a form of which is Exhibit 3 to the Company's Form 8-A).* 4.4 By-laws of the Company (Exhibit 3.2 to the Form 10).* 15.1 Independent Accountants Awareness Letter.** 24.1 Powers of Attorney of directors and officers of the Company.*** 24.2 Certificate regarding resolutions of the Board of Directors of the Company.** ________________________________________________________________________ * Each document marked by an asterisk is incorporated herein by reference to the designated document previously filed with the Commission. ** Each document marked by two asterisks was previously filed as part of Registration Statement No. 33-50573. *** Powers of Attorney of directors and officers of the Company were previously filed as part of Registration Statement No. 33-50573, except for the one filed herewith. 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