Exhibit 12 WASHINGTON NATURAL GAS COMPANY Computations of Ratio of Earnings to Fixed Charges Consolidated (in thousands) 12 Mos. Ended 12 Mos. Ended June 30 June 30 1996 1995 ------------ ------------ Fixed Charges, as defined: Interest on long-term debt 26,293 28,091 Interest on short-term debt 1,496 1,478 Amortization of Debt Discount 383 372 Other interest expense 4,122 1,529 Interest charges capitalized 930 330 Interest portion of rentals 1,149 1,254 ------------ ------------ Total fixed charges 34,373 33,054 Earnings, as defined: Net Income (loss) from Continuing operations 27,627 18,951 Add: Federal Income taxes 13,425 8,962 ------------ ------------ Pre-tax income from continuing 41,052 27,913 operations Add total fixed charges above 34,373 33,054 Less adjustments to fixed charges (a) Interest capitalized during the period (930) (330) ------------ ------------ Total earnings available for fixed charges 74,495 60,637 Ratio of earnings to fixed charges 2.17 1.83 ============ ============