1 EXHIBIT 23. CONSENT OF INDEPENDENT ACCOUNTANTS We hereby consent to the incorporation by reference in the prospectuses constituting part of the Registration Statements listed below of our reports dated February 8, 1994, relating to the Consolidated Financial Statements of USX Corporation, the Financial Statements of the Marathon Group, the Financial Statements of the U.S. Steel Group, and the Financial Statements of the Delhi Group, appearing on pages U-3, M-3, S-3 and D-3 respectively, of this Form 10-K: On Form S-3: Relating to: File No. 2-85535 USX Dividend Reinvestment Plan 33-34703 Marathon Group Dividend Reinvestment Plan 33-43719 U.S. Steel Group Dividend Reinvestment Plan 33-51621 USX Corporation Debt Securities, Preferred Stock and Common Stock 33-60142 USX Corporation Debt Securities On Form No. S-8: Relating to: File No. 2-76726 USX Savings Plan 2-76917 USX 1976 Stock Option Plan 33-2097 Stock Option Plans of Texas Oil & Gas Corp. 33-4198 Texas Oil & Gas Corp. Thrift Plan 33-6248 USX 1986 Stock Option Plan 33-8669 Marathon Oil Company Thrift Plan 33-38025 USX 1990 Stock Plan 33-41864 USX 1990 Stock Plan 33-48116 Parity Investment Bonus 33-54760 Thrift Plan for Empoyees of Delhi Gas Pipeline Corporation 33-56828 Marathon Oil Company Thrift Plan PRICE WATERHOUSE 600 Grant Street Pittsburgh, PA 15219-2794 March 15, 1994