. . . EXHIBIT 12.1 GREY WOLF, INC. RATIO OF EARNINGS TO FIXED CHARGES THREE MONTHS ENDED YEAR ENDED DECEMBER 31, MARCH 31, ---------------------------------------------------- 2003 2002 2001 2000 1999 1998 ----------------------------------------------------------------- Pretax income from continuing operations: (14,148) (29,693) 111,306 (9,661) (56,818) (111,164) Add: Fixed charges: Interest, whether expensed or capitalized 5,745 22,748 22,811 22,656 22,706 20,244 Amortization of debt expense and discount or premium 292 1,180 1,280 1,280 1,348 1,377 ------- ------- ------- ------ ------- -------- Earnings as adjusted (8,111) (5,765) 135,397 14,275 (32,764) (89,543) ======= ======= ======= ====== ======= ======== Fixed Charges 6,037 23,928 24,091 23,936 24,054 21,621 ======= ======= ======= ====== ======= ======== Ratio of Earnings to Fixed Charges or Deficiency -- -- 5.62 0.60 -- -- ======= ======= ======= ====== ======= ======== Series B preferred stock subscription dividend requirement 0 0 0 0 0 0 ------- ------- ------- ------ ------- -------- Ratio of Earnings to Fixed Charges and preferred stock dividends 0.00 0.00 5.62 0.60 0.00 0.00 ======= ======= ======= ====== ======= ========