ITEM 14(a)3, EXHIBIT 24(b) CONSENT OF INDEPENDENT PETROLEUM ENGINEERS We hereby consent to the references to our firm in the Annual Report of Tesoro Petroleum Corporation on Form 10-K for the fiscal year ended December 31, 1993, filed with the Securities and Exchange Commission in Washington, D.C. pursuant to the Securities Exchange Act of 1934. NETHERLAND, SEWELL & ASSOCIATES, INC. By: /s/ Frederic D. Sewell Frederic D. Sewell, President Dallas, Texas March 30, 1994