EXHIBIT 12.1 DYNEGY INC. COMPUTATION OF RATIO OF EARNINGS TO FIXED CHARGES ($ in 000'S) - ----------------------------------------------------------------------------------------------------------------------------- Year Ended December 31, -------------------------------------------------------------------- 1998 1997 1996 1995 1994 -------- --------- -------- -------- -------- Computation of Earnings: Pre-tax income (loss) from continuing operations $158,691 $(149,895) $169,645 $ 65,234 $ 44,105 Undistributed income from equity investees 6,477 4,073 21,729 9,169 3,803 -------- --------- -------- -------- -------- Computed Earnings (Loss) 152,214 (153,968) 147,916 56,065 40,302 -------- --------- -------- -------- -------- Fixed Charges: Interest costs: Expensed 74,992 63,455 46,202 34,475 1,114 Capitalized 7,591 8,800 1,200 1,028 - Minority interest in income of a subsidiary 16,632 9,841 - - - Amortization of financing costs 1,320 943 772 1,132 1,267 Amortization of Premium (2,568) (6,768) (4,892) (3,216) - Rental expense representative of interest factor 20,698 13,572 4,171 3,719 955 -------- --------- -------- -------- -------- Total Fixed Charges 118,665 89,843 47,453 37,138 3,336 -------- --------- -------- -------- -------- Earnings Before Income Taxes and Fixed Charges $263,288 $ (72,925) $194,169 $ 92,175 $ 43,638 ======== ========= ======== ======== ======== Ratio of Earnings to Fixed Charges 2.22 (a) 4.09 2.48 13.08 ======== ========= ======== ======== ======== (a) Earnings are inadequate to cover fixed charges for the year ended December 31, 1997, by approximately $72.9 million.