1 EXHIBIT 12 THE WILLIAMS COMPANIES, INC. AND SUBSIDIARIES COMPUTATION OF RATIO OF EARNINGS TO COMBINED FIXED CHARGES AND PREFERRED STOCK DIVIDEND REQUIREMENTS (DOLLARS IN MILLIONS) YEARS ENDED DECEMBER 31, -------------------------------------------------- 1993 1992* 1991* 1990* 1989* ------ ------ ------ ------ ------ Earnings: Income before income taxes................ $376.6 $186.9 $159.8 $106.6 $ 80.3 Add: Interest expense -- net................ 156.0 153.2 157.8 137.1 159.3 Rental expense representative of interest factor...................... 32.0 29.5 25.5 24.0 24.9 Preferred dividends of subsidiaries.... -- .3 .8 1.6 2.6 Interest accrued -- 50% owned company.............................. 31.3 27.3 10.3 -- -- Other.................................. 4.1 .4 .9 (.7) 2.6 ------ ------ ------ ------ ------ Total earnings as adjusted plus fixed charges................... $600.0 $397.6 $355.1 $268.6 $269.7 ------ ------ ------ ------ ------ ------ ------ ------ ------ ------ Fixed charges and preferred dividend requirements: Interest expense -- net................ $156.0 $153.2 $157.8 $137.1 $159.3 Capitalized interest................... 10.4 8.9 4.7 4.9 3.6 Rental expense representative of interest factor...................... 32.0 29.5 25.5 24.0 24.9 Pretax effect of dividends on preferred stock of the Company................. 19.1 19.4 15.9 15.4 11.2 Pretax effect of preferred dividends of subsidiaries......................... -- .4 1.2 2.5 4.1 Interest accrued -- 50% owned company.............................. 31.3 27.3 10.3 -- -- ------ ------ ------ ------ ------ Combined fixed charges and preferred dividend requirements.................... $248.8 $238.7 $215.4 $183.9 $203.1 ------ ------ ------ ------ ------ ------ ------ ------ ------ ------ Ratio of earnings to combined fixed charges and preferred dividend requirements....... 2.41 1.67 1.65 1.46 1.33 ------ ------ ------ ------ ------ ------ ------ ------ ------ ------ - --------------- * Certain amounts have been reclassified as described in Note 1 of Notes to Consolidated Financial Statements.