1 EXHIBIT 12 MESA INC. COMPUTATION OF THE RATIO OF EARNINGS TO FIXED CHARGES The following computations of the ratio of earnings to fixed charges for the six months ended June 30, 1994 and for the years ended December 31, 1993, 1992, 1991, 1990 and 1989 represent the actual results of Mesa's operations for those periods. SIX MONTHS ENDED YEARS ENDED DECEMBER 31 JUNE 30, ------------------------------------------------------ 1994 1993 1992 1991 1990 1989 -------- --------- -------- -------- --------- -------- Net loss....................... $(43,104) $(102,448) $(89,232) $(79,163) $(200,276) $(60,414) Adjustments -- Loss on investment accounted for under the equity method.................... -- -- -- -- -- 13,268 Minority interest in loss.... -- (4,318) (3,854) (3,419) (8,649) (2,609) Interest expense............. 72,975 142,002 143,392 150,770 186,700 183,908 -------- --------- -------- -------- --------- -------- Total Earnings....... $ 29,871 $ 35,236 $ 50,306 $ 68,188 $ (22,225) $134,153 ======== ========= ======== ======== ========= ======== Fixed charges: Interest expense............. $ 72,975 $ 142,002 $143,392 $150,770 $ 186,700 $183,908 ======== ========= ======== ======== ========= ======== Ratio of earnings to fixed charges...................... (a) (a) (a) (a) (a) (a) ======== ========= ======== ======== ========= ======== Fixed charges in excess of earnings(a).................. $ 43,104 $ 106,766 $ 93,086 $ 82,582 $ 208,925 $ 49,755 ======== ========= ======== ======== ========= ======== - - --------------- (a) Earnings were not adequate to cover fixed charges in the indicated periods.