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                                  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): August 4, 2004



                          Tesoro Petroleum Corporation
             (Exact name of registrant as specified in its charter)



         Delaware                       1-3473                    95-0862768
(State or other jurisdiction    (Commission File Number)        (IRS Employer
     of incorporation)                                       Identification No.)




           300 Concord Plaza Drive                             78216-6999
             San Antonio, Texas                                (Zip Code)
    (Address of principal executive offices)




       Registrant's telephone number, including area code: (210) 828-8484

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Item 7.  Financial Statements, Pro Forma Financial Information and Exhibits

         (a)     Financial statements of businesses acquired.

                 Not applicable.

         (b)     Pro forma financial information.

                 Not applicable.

         (c)     Exhibits.

                 99.1    Press Release issued on August 4, 2004 by Tesoro
                         Petroleum Corporation.


Item 12. Results of Operations and Financial Condition

On August 4, 2004 Tesoro issued a press release (the "Press Release") announcing
financial results for its second quarter ended June 30, 2004. The Press Release
is filed as Exhibit 99.1 to this Current Report on Form 8-K and is incorporated
herein by reference.

The information in this report is being furnished, not filed, pursuant to Item
12 of Form 8-K. Accordingly, the information in Item 12 of this report will not
be incorporated by reference into any registration statement filed by the
Company under the Securities Act of 1933, as amended, unless specifically
identified therein as being incorporated therein by reference.









                                   SIGNATURES




     Pursuant to the requirements of the Securities Exchange Act of 1934, as
amended, the Registrant has duly caused this report to be signed on its behalf
by the undersigned hereunto duly authorized.


Date: August 4, 2004


                                             TESORO PETROLEUM CORPORATION




                                             By: /s/ Gregory A. Wright
                                                 -----------------------------
                                                     Gregory A. Wright
                                                     Executive Vice President
                                                     and Chief Financial Officer










                                Index to Exhibits


Exhibit Number                     Description


       99.1              Press Release issued on August 4, 2004 by Tesoro
                         Petroleum Corporation.