EXHIBIT 23.2

                          CONSENT OF ERNST & YOUNG LLP

We consent to the reference to our firm under the caption "Experts" in Amendment
No. 4 to the Registration Statement on Form S-3, No. 333-84018, and the related
Prospectus of Tesoro Petroleum Corporation and to the incorporation therein of
our report dated October 12, 2001 with respect to the combined financial
statements of The North Dakota and Utah Refining and Marketing Business of BP
Corporation North America Inc. as of December 31, 2000 and 1999 and for the
three years in the period ended December 31, 2000, included in Tesoro Petroleum
Corporation's Amendment No. 1 to Current Report on Form 8-K filed on October 24,
2001 with the Securities and Exchange Commission.


                                        /s/ Ernst & Young LLP


Chicago, Illinois
September 3, 2002