EXHIBIT 12 AMOCO COMPANY STATEMENT SETTING FORTH COMPUTATION OF RATIO OF EARNINGS TO FIXED CHARGES (millions of dollars, except ratios) Year Ended December 31, 1997 1996 1995 1994 1993 Determination of Income: Consolidated earnings before income taxes and minority interest.. $3,235 $3,351 $2,425 $2,688 $2,427 Fixed charges expensed by consolidated companies.. 282 251 233 140 193 Adjustments for certain companies accounted for by the equity method... 50 76 10 7 9 Adjusted earnings plus fixed charges........... $3,567 $3,678 $2,668 $2,835 $2,629 Determination of Fixed Charges: Consolidated interest on indebtedness (including interest capitalized)... $ 212 $ 164 $ 152 $ 127 $ 162 Consolidated rental expense representative of an interest factor... 84 88 71 7 31 Adjustments for certain companies accounted for by the equity method.... 7 8 6 5 6 Total fixed charges...... $ 303 $ 260 $ 229 $ 139 $ 199 Ratio of earnings to fixed charges........... 11.8* 14.2* 11.6* 20.4 13.2 _____________ *Based on outstanding public debt obligations. Including debt with affiliates, the ratio would have been 5.0 as of December 31, 1997, 5.5 as of December 31, 1996, and 4.4 as of December 31, 1995.