UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K Current Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): December 15, 1995 TESORO PETROLEUM CORPORATION (Exact Name of registrant as specified in its charter) Delaware (State or other jurisdiction of incorporation or organization) 1-3473 95-0862768 (Commission File Number) (I.R.S. Employer Identification No.) 8700 Tesoro Drive 78217 San Antonio, Texas (Zip code) (Address of principal executive offices) Registrant's telephone number, including area code (210) 828-8484 1 TESORO PETROLEUM CORPORATION FORM 8-K Item 5. Other Events. On December 15, 1995, the Board of Directors of Tesoro Petroleum Corporation ("Tesoro") extended the expiration date of Tesoro's Preferred Stock Purchase Rights issued pursuant to the Rights Agreement dated December 16, 1985, between Tesoro and InterFirst Bank of Fort Worth, N.A. (now, by substitution, Chemical Bank). The expiration date was extended to the close of business on July 24, 1996. Item 7. Financial Statements and Exhibits. (c) Exhibits 4. Copy of the resolution of the Board of Directors extending the Expiration Date relating to the Tesoro Preferred Stock Purchase Rights. 20. Press Release of the Company dated December 18, 1995, announcing extension of Expiration Date relating to Preferred Stock Purchase Rights. SIGNATURES Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized. TESORO PETROLEUM CORPORATION Date: December 18, 1995 By: /s/ James C. Reed, Jr. James C. Reed, Jr. Executive Vice President, General Counsel and Secretary 2 EXHIBIT INDEX Exhibit Description Page 4 Copy of the resolution of the Board of Directors 4 extending the Expiration Date relating to the Tesoro Preferred Stock Purchase Rights. 20 Press Release of the Company dated December 18, 5 1995, announcing extension of Expiration Date relating to Preferred Stock Purchase Rights. 3