. . . EXHIBIT 12.1 GREY WOLF, INC. RATIO OF EARNINGS TO FIXED CHARGES THREE MONTHS YEAR ENDED DECEMBER 31, ENDED --------------------------------------------------- MARCH 31, 2004 2003 2002 2001 2000 1999 ------------------------------------------------------------------- Pretax income from continuing operations: (9,438) (47,583) (29,693) 111,306 (9,661) (56,818) Add: Fixed charges: Interest, whether expensed or capitalized 5,944 24,014 22,748 22,811 22,656 22,706 Amortization of debt expense and discount or premium 222 3,818 1,180 1,280 1,280 1,348 ------------------------------------------------------------------- Earnings as adjusted (3,272) (19,751) (5,765) 135,397 14,275 (32,764) =================================================================== Fixed charges 6,166 27,832 23,928 24,091 23,936 24,054 =================================================================== Ratio of Earnings to Fixed Charges or Deficiency (9,438) (47,583) (29,693) 5.62 (9,661) (56,818) =================================================================== Series B preferred stock subcription dividend requirement 0 0 0 0 0 0 ------------------------------------------------------------------- Ratio of earnings to fixed charges and preferred stock dividends (9,438) (47,583) (29,693) 5.62 (9,661) (56,818) ===================================================================