Exhibit 12.1 USX CORPORATION COMPUTATION OF RATIO OF EARNINGS TO COMBINED FIXED CHARGES AND PREFERRED STOCK DIVIDENDS TOTAL ENTERPRISE BASIS - (Unaudited) ---------------------------------------------------------- (Dollars in Millions) Nine Months Ended Year Ended December 31 September 30 -------------------------------- 1994 1993* 1993 1992 1991 1990 1989 ---- ----- ---- ---- ---- ---- ---- Portion of rentals representing interest $61 $63 $84 $87 $91 $88 $79 Capitalized interest 53 78 105 78 63 50 42 Pretax earnings which would be required to cover preferred stock dividend requirements of parent 37 32 44 14 15 28 93 Other interest and fixed charges 341 304 372 408 474 554 761 ---- ---- ---- ---- ---- ---- ---- Combined fixed charges and preferred stock dividends (A) $492 $477 $605 $587 $643 $720 $975 ==== ==== ==== ==== ==== ==== ==== Earnings-pretax income (loss) with applicable adjustments (B) $962 $90 $280 $376 $(53) $1,935 $2,271 ==== ==== ==== ==== ==== ====== ====== Ratio of (B) to (A) 1.95 (a) (b) (c) (d) 2.69 2.33 ==== ==== ==== ==== ==== ==== ==== <FN> *Restated (a) Earnings did not cover combined fixed charges and preferred stock dividends by $387 million. (b) Earnings did not cover combined fixed charges and preferred stock dividends by $325 million. (c) Earnings did not cover combined fixed charges and preferred stock dividends by $211 million. (d) Earnings did not cover combined fixed charges and preferred stock dividends by $696 million.