1 EXHIBIT 12 The Williams Companies, Inc. and Subsidiaries Computation of Ratio of Earnings to Fixed Charges (Dollars in millions) Three months ended March 31, 2001 ------------------ Earnings: Income from continuing operations before income taxes $ 617.9 Add: Interest expense - net 180.3 Rental expense representative of interest factor 6.3 Minority interest in income and preferred returns of consolidated subsidiaries 24.2 Interest accrued - 50% owned company 2.2 Equity losses in less than 50% owned companies 11.2 Equity earnings in less than 50% owned companies in excess of distributions (.9) Other 1.7 ------- Total earnings as adjusted plus fixed charges $ 842.9 ======= Fixed charges: Interest expense - net $ 180.3 Capitalized interest 9.7 Rental expense representative of interest factor 6.3 Pretax effect of preferred returns of subsidiaries 21.7 Interest accrued - 50% owned company 2.2 ------- Total fixed charges $ 220.2 ======= Ratio of earnings to fixed charges 3.83 =======