1 EXHIBIT 12.1 TRANSAMERICAN REFINING CORPORATION RATIO OF EARNINGS TO FIXED CHARGES (In thousands of dollars) SIX MONTHS ENDED YEAR ENDED JULY 31, JANUARY 31, -------------------------------------------------------- -------------------- 1991 1992 1993 1994 1995 1995 1996 -------- -------- -------- -------- -------- -------- -------- Loss before taxes $(11,967) $(14,905) $(19,373) $(17,353) $(64,337) $(23,150) $(26,071) Add: Equity in loss of TransTexas -- -- -- -- 13,925 -- 156 Interest expense, net of amounts capitalized 26 21 17 14 12,504 31 5,978 Portion of rental expense representative of an interest factor 223 188 186 357 790 360 378 -------- -------- -------- -------- -------- -------- Earnings (B) $(11,718) $(14,696) $(19,170) $(16,982) $(37,118) $(22,759) $(19,559) ======== ======== ======== ======== ======== ======== ======== Fixed charges: Total interest 26 21 17 14 31,354 3,540 32,180 Portion of rental expense representative of an interest factor 223 188 186 357 790 360 378 -------- -------- -------- -------- -------- -------- -------- Fixed charges (A) $ 249 $ 209 $ 203 $ 371 $ 32,144 $ 3,900 $ 32,558 ======== ======== ======== ======== ======== ======== ======== Ratio of earnings to fixed charges (B divided by A) -- -- -- -- -- -- -- ======== ======== ======== ======== ======== ======== ======== Earnings inadequate to cover fixed charges $ 11,967 $ 14,905 $ 19,373 $ 17,353 $ 69,262 $ 26,659 $ 52,117 ======== ======== ======== ======== ======== ======== ======== Three Months Ended April 30, ------------------- 1995 1996 -------- -------- Income (loss) before taxes $(10,351) $ 46,596 Add: Equity in (income) loss of TransTexas 842 (1,001) Interest expense, net of amounts capitalized 4,633 1,088 Portion of rental expense representative of an interest factor 315 242 -------- -------- Earnings (B) $ (4,561) $ 46,925 ======== ======== Fixed charges: Total interest 11,221 17,705 Portion of rental expense representative of an interest factor 315 242 -------- -------- Fixed charges (A) $ 11,536 $ 17,947 ======== ======== Ratio of earnings to fixed charges (B divided by A) -- 2.6 ======== ======== Earnings inadequate to cover fixed charges $ 16,097 $ -- ======== ======== 2 Exhibit 12.1 (Con't) TRANSAMERICAN ENERGY CORPORATION (AND PREDECESSOR) RATIO OF EARNINGS TO FIXED CHARGES (In thousands of dollars) Six Months Ended YEAR ENDED JULY 31, January 31, ----------------------------------------------------- -------------------- 1991 1992 1993 1994 1995 1995 1996 -------- -------- ------- ------- -------- -------- -------- Income (loss) before taxes $43,950 $ 41,778 $90,990 $11,783 $(64,762) $(23,525) $(27,193) Add: Interest expense, net of amounts capitalized 2,015 3,173 2,999 51,684 81,012 30,002 49,348 Portion of rental expense representative of an interest factor 356 403 460 736 1,321 643 715 ------- -------- ------- ------- -------- -------- -------- Earnings(B) $46,321 $ 45,354 $94,449 $64,203 $ 17,571 $ 7,120 $ 22,870 ======= ======== ======= ======= ======== ======== ======== Fixed charges: Total interest 2,015 3,173 2,999 52,394 100,745 33,511 82,931 Portion of rental expense representative of an interest factor 356 403 460 736 1,321 643 715 ------- -------- ------- ------- -------- -------- -------- Fixed charges (A) 2,371 $ 3,576 $ 3,459 $53,130 $102,066 34,154 $ 83,646 ======= ======== ======= ======= ======== ======== ========= Ratio of earnings to fixed charges (B divided by A) 19.5 12.7 27.3 1.2 -- -- -- ======= ======== ======= ======= ======== ======== ========= Earnings inadequate to cover fixed charges $ -- $ -- $ -- $ -- $ 84,495 $ 27,034 $ 60,776 ======= ======== ======= ======= ======== ======== ========= Three Months Ended April 30, -------------------- 1995 1996 -------- ------- Income (loss) before taxes $(11,434) $50,142 Add: Interest expense, net of amounts capitalized 19,957 23,374 Portion of rental expense representative of an interest factor 456 472 -------- ------- Earnings(B) $ 8,979 $73,988 ======== ======= Fixed charges: Total interest 27,428 43,674 Portion of rental expense representative of an interest factor 456 472 -------- ------- Fixed charges (A) $ 27,884 $44,146 ======== ======= Ratio of earnings to fixed charges (B divided by A) -- 1.7 ======== ======= Earnings inadequate to cover fixed charges $ 18,905 $ -- ======== =======