1 EXHIBIT 12.1 TransAmerican Refining Corporation Ratio of Earnings to Fixed Charges (In thousands of dollars) Nine Months Ended Six Months Ended October 31, Year Ended January 31, January 31, ---------------------- ---------------------------------- ---------------------- 1998 1997 1998 1997 1996 1996 1995 ---- ---- ---- ---- ---- ---- ---- Income (loss) before taxes $ (41,181) $ (89,985) $(112,008) $ 9,406 $ (67,258) $ (26,071) $ (23,150) Add: Equity in (income) loss of TransTexas 229 (35,027) (34,394) (12,325) 14,081 156 -- Interest expense, net of amounts capitalized 10,785 13,870 20,446 4,663 18,451 5,978 31 Portion of rental expense representative of an interest factor 114 724 747 834 794 378 360 --------- --------- --------- --------- --------- --------- --------- Earnings(A) $ (30,053) $(110,418) $(125,209) $ 2,578 $ (33,932) $ (19,559) $ (22,759) ========= ========= ========= ========= ========= ========= ========= Fixed charges: Total interest $ 129,519 $ 78,776 $ 113,400 $ 73,503 $ 59,994 $ 32,180 $ 3,540 Portion of rental expense representative of an interest factor 114 724 747 834 794 378 360 --------- --------- --------- --------- --------- --------- --------- Fixed Charges(B) $ 129,633 $ 79,500 $ 114,147 $ 74,337 $ 60,788 $ 32,558 $ 3,900 ========= ========= ========= ========= ========= ========= ========= Ratio of earnings to fixed charges(A/B) -- -- -- -- -- -- -- ========= ========= ========= ========= ========= ========= ========= Earnings inadequate to cover fixed charges $ 159,686 $ 189,918 $ 239,356 $ 71,759 $ 94,720 $ 52,117 $ 26,659 ========= ========= ========= ========= ========= ========= ========= Year Ended July 31, ---------------------------------- 1995 1994 1993 ---- ---- ---- Income (loss) before taxes $ (64,337) $ (17,353) $ (19,373) Add: Equity in (income) loss of TransTexas 13,925 -- -- Interest expense, net of amounts capitalized 12,504 14 17 Portion of rental expense representative of an interest factor 790 357 186 --------- --------- --------- Earnings(A) $ (37,118) $ (16,982) $ (19,170) ========= ========= ========= Fixed charges: Total interest $ 31,354 $ 14 $ 17 Portion of rental expense representative of an interest factor 790 357 186 --------- --------- --------- Fixed Charges(B) $ 32,144 $ 371 $ 203 ========= ========= ========= Ratio of earnings to fixed charges(A/B) -- -- -- ========= ========= ========= Earnings inadequate to cover fixed charges $ 69,262 $ 17,353 $ 19,373 ========= ========= =========