EXHIBIT 12 THREE MONTHS YEARS ENDED DECEMBER 31 ENDED MARCH 31, --------------------------------------------- ---------------- 1994 1995 1996 1997 1998 1998 1999 ------- ------- -------- -------- ------- ------- ------- INCOME AVAILABLE FOR FIXED CHARGES Income (loss) before income taxes and minority interest........................... $15,893 $13,390 $(41,358) $(34,649) $33,906 $ 2,169 $11,364 Fixed charges................................ 10,587 19,560 41,485 60,216 62,312 15,809 15,040 Less capitalized interest.................... (1,665) (3,203) (3,033) (8,391) (1,086) (578) -- Less minority partner preferred equity return...................................... -- -- (1,542) (2,307) (2,360) (594) (561) ------- ------- -------- -------- ------- ------- ------- Income (loss) available for fixed charges.................................. $24,815 $29,747 $ (4,448) $ 14,869 $92,772 $16,806 $25,843 ------- ------- -------- -------- ------- ------- ------- ------- ------- -------- -------- ------- ------- ------- FIXED CHARGES Interest expense............................. $ 8,182 $14,708 $ 34,842 $ 47,116 $57,487 $14,292 $14,134 Minority partner preferred equity return..... -- -- 1,542 2,307 2,360 594 561 Capitalized interest......................... 1,665 3,203 3,033 8,391 1,086 578 -- Interest portion of rent expense............. 740 1,649 2,068 2,402 1,379 345 345 ------- ------- -------- -------- ------- ------- ------- Total fixed charges........................ $10,587 $19,560 $ 41,485 $ 60,216 $62,312 $15,809 $15,040 ------- ------- -------- -------- ------- ------- ------- ------- ------- -------- -------- ------- ------- ------- Ratio of earnings to fixed charges........... 2.3x 1.5x (a) (a) 1.5x 1.1x 1.7x PRO FORMA ----------------------------- YEAR ENDED THREE MONTHS DECEMBER 31, ENDED 1998 MARCH 31, 1999 ------------ -------------- INCOME AVAILABLE FOR FIXED CHARGES Income (loss) before income taxes and minority interest........................... $45,037 $14,147 Fixed charges................................ 51,181 12,257 Less capitalized interest.................... (1,086) -- Less minority partner preferred equity return...................................... (2,360) (561) ------------ ------- Income (loss) available for fixed charges.................................. $92,772 $25,843 ------------ ------- ------------ ------- FIXED CHARGES Interest expense............................. $46,356 $11,351 Minority partner preferred equity return..... 2,360 561 Capitalized interest......................... 1,086 -- Interest portion of rent expense............. 1,379 345 ------------ ------- Total fixed charges........................ $51,181 $12,257 ------------ ------- ------------ ------- Ratio of earnings to fixed charges........... 1.8x 2.1x - ------------------------------ (a) The Company's earnings were inadequate to cover fixed charges for the years ended 1996 and 1997 by approximately $45.9 million and $45.3 million, respectively.