EXHIBIT 12 SWIFT ENERGY COMPANY RATIO OF EARNINGS TO FIXED CHARGES Three Months Ended Years Ended December 31, March 31, --------------------------------------------------------- ------------------ 1998 1997 1996 1995 1994 1999 1998 ---- ---- ---- ---- ---- ---- ---- Gross G&A 21,010,960 20,098,383 18,215,744 16,603,884 16,773,066 5,611,094 5,381,397 Net G&A 3,853,812 3,523,604 4,149,964 3,336,777 3,322,369 1,109,674 1,000,479 Interest Expense 8,752,195 5,032,952 693,959 1,115,361 1,795,133 3,304,377 1,384,766 Rent Expense 1,117,351 1,039,210 957,797 869,191 965,389 322,021 271,888 Net Income Before Taxes (73,391,581) 33,129,606 28,785,783 6,894,537 4,837,829 1,905,419 4,835,502 Capitalized Interest 3,849,665 2,326,691 1,549,575 1,442,022 766,572 908,497 751,847 Depleted Capitalized Interest 292,267 201,169 168,375 95,496 87,588 89,972 58,403 Calculated Data --------------- Unallocated G&A (%) 18.34% 17.53% 22.78% 20.10% 19.81% 19.78% 18.59% Non-Capital Rent Expense 204,944 182,192 218,208 174,676 191,222 63,684 50,548 1/3 Non-Capital Rent Expense 68,315 60,731 72,736 58,225 63,741 21,228 16,849 Fixed Charges 12,670,175 7,420,374 2,316,270 2,615,608 2,625,446 4,234,102 2,153,462 Earnings (64,278,804) 38,424,458 29,720,853 8,163,619 6,784,291 5,320,996 6,295,520 Ratio of Earnings to Fixed --- 5.18 12.83 3.12 2.58 1.26 2.92 Charges