EXHIBIT 99.0 WASHINGTON GAS LIGHT COMPANY AND SUBSIDIARIES Computation of Ratio of Earnings to Fixed Charges Twelve Months Ended June 30, 1997 ------------------------------------------------- (Unaudited) (Dollars in Thousands) FIXED CHARGES: Interest Expense $ 33,186 Amortization of Debt Premium, Discount and Expense 293 Interest Component of Rentals 64 -------- Total Fixed Charges $ 33,543 ======== EARNINGS: Net Income $ 77,966 Add: Income Taxes Applicable to Operating Income 44,454 Income Taxes Applicable to Other Income (Loss) - Net 1,189 Total Fixed Charges 33,543 -------- Total Earnings $157,152 ======== Ratio of Earnings to Fixed Charges 4.7 ========