1 EXHIBIT 12-2 MCN CORPORATION AND SUBSIDIARIES COMPUTATION OF RATIO OF EARNINGS TO FIXED CHARGES (DOLLARS IN THOUSANDS) TWELVE MONTHS ENDED DECEMBER 31, -------------------------------------------------------------------------- 1995 1994 1993 1992 1991 ---------- --------- ---------- --------- --------- EARNINGS AS DEFINED (1)(5) Pre-tax income (2) $ 128,997 $ 100,143 $ 102,402 $ 81,861 $ 52,906 Fixed charges (3) 72,895 55,197 44,262 43,878 43,978 --------- --------- --------- --------- --------- Earnings as defined $ 201,892 $ 155,340 $ 146,664 $ 125,739 $ 96,884 ========= ========= ========= ========= ========= FIXED CHARGES AS DEFINED (1)(4)(5) Interest, expensed $ 57,675 $ 49,104 $ 38,771 $ 38,860 $ 39,657 Interest, capitalized 7,926 2,928 3,966 1,650 737 Amortization of debt discounts, premium and expense 1,641 1,332 1,153 830 629 Interest implicit in rentals 2,325 1,904 1,614 1,776 1,735 Preferred securities dividend requirements of subsidiaries 9,699 2,194 1,079 1,464 1,879 --------- --------- --------- -------- --------- Fixed charges as defined $ 79,266 $ 57,462 $ 46,583 $ 44,580 $ 44,637 ========= ========= ========= ======== ========= Ratio of Earnings to Fixed Charges 2.55 2.70 3.15 2.82 2.17 ========= ========= ========= ======== ========= (1) Earnings and fixed charges are defined and computed in accordance with Item 503 of Regulation S-K. (2) This amount represents the aggregate of (a) the pre-tax income from continuing operations of MCN and its majority-owned subsidiaries, (b) MCN's share of pre-tax income of its 50% owned companies, and (c) any income actually received from less than 50% owned companies. (3) Fixed charges added to earnings are adjusted to exclude interest capitalized during the period for nonutility companies and the preferred securities dividend requirements of MichCon included in fixed charges but not deducted in the determination of pre-tax income. (4) Fixed charges represent (a) interest, whether expensed or capitalized, (b) amortization of debt discount, premium and expense, (c) an estimate of interest implicit in rentals, and (d) preferred securities dividend requirements of subsidiaries (MichCon and MCN Limited Partnership), increased to reflect the pre-tax earnings requirement for MichCon. (5) In April 1996, MCN announced its intention to sell The Genix Group, its computer services subsidiary. For purposes of calculating the Ratio of Earnings to Fixed Charges, it has been classified as a discontinued operation and therefore excluded from the ratio for all periods presented.