1 EXHIBIT 23.3 CONSENT OF INDEPENDENT PETROLEUM ENGINEER We hereby consent to reference of our firm in the Annual Report on Form 10-K of Presidio Oil Company and its subsidiaries (the "Company") for the year ended December 31, 1993, and the incorporation by reference thereof into the Company's Registration Statement on Form S-3 (33-5390), Form S-3 (No. 33-32821), Form S-8 (No. 33-6661), Form S-8 (No. 33-20496), Form S-3 (No. 33-37747), Form S-8 (No. 33-38620), Form S-3 (No. 33- 34350) and Form S-8 (No. 33-44909). Very truly yours, NETHERLAND, SEWELL & ASSOCIATES, INC. By: /s/ Frederic D. Sewell Frederic D. Sewell President February 10, 1994