EXHIBIT 99.0 WASHINGTON GAS LIGHT COMPANY AND SUBSIDIARIES --------------------------------------------- Computation of Ratio of Earnings to Fixed Charges ------------------------------------------------- Twelve Months Ended June 30, 1998 --------------------------------- (Unaudited) (Dollars in Thousands) FIXED CHARGES: Interest Expense ................................... $ 35,971 Amortization of Debt Premium, Discount and Expense . 351 Interest Component of Rentals ...................... 7 -------- Total Fixed Charges ....................... $ 36,329 ======== EARNINGS: Net Income ......................................... $ 70,647 Add: Income Taxes Applicable to Operating Income .... 39,969 Income Taxes Applicable to Other Income - Net .. 989 Total Fixed Charges ............................ 36,329 -------- Total Earnings ....................................... $147,934 ======== Ratio of Earnings to Fixed Charges ................... 4.1 ========