1 EXHIBIT 23(c) OUTTRIM SZABO ASSOCIATES LTD. Petroleum Consultants Calgary, Alberta 440,333 - 5th Avenue S. W., Calgary, Alberta, Canada T2P 3B6 Phone (403) 266-8680 Fax (403) 266-1887 CONSENT OF INDEPENDENT PETROLEUM ENGINEERS We hereby consent to the incorporation by reference in Pennzoil Company's previously filed Registration Statements on Form S-8 Nos. 2-67268, 2-76935, 2-95869, 33-24261, 33-40192, 33-51473, 33-53783 and on Form S-3 Nos. 33-50029 and 33-50953 of our summary report dated February 17, 1995 included as Exhibit 99 (b) to this Annual Report on Form 10-K and the data extracted from our reports and the references to our firm appearing in "Item 1. Business and Item 2. Properties" under the captions "Oil and Gas - Oil and Gas Reserves" and " - Exploration, Development and Production Activities", in Item 7, Management's Discussion and Analysis of Financial Condition and Results of Operations under the captions "Oil and Gas" and "Capital Resources and Liquidity - Assessment of Oil and Gas Properties" and in "Supplemental Financial and Statistical Information - Unaudited - Oil and Gas Information" in such Annual Report on Form 10-K. OUTTRIM SZABO ASSOCIATES LTD. /s/ COLIN P. OUTTRIM Calgary, Alberta, Canada Colin P. Outtrim, P.Eng. February 17, 1995 President