EXHIBIT 12 AMOCO COMPANY ______________________ STATEMENT SETTING FORTH COMPUTATION OF RATIO OF EARNINGS TO FIXED CHARGES (millions of dollars, except ratios) Nine Months Ended Year Ended December 31, Sept. 30, 1998 1997 1996 1995 1994 1993 Determination of Income: Consolidated earnings before income taxes and minority interest... $ 959 $3,235 $3,351 $2,425 $2,688 $2,427 Fixed charges expensed by consolidated companies.. 259 282 251 233 140 193 Adjustments for certain companies accounted for by the equity method... 97 50 76 10 7 9 Adjusted earnings plus fixed charges........... $1,315 $3,567 $3,678 $2,668 $2,835 $2,629 Determination of Fixed Charges: Consolidated interest on indebtedness (including interest capitalized)... $ 200 $ 212 $ 164 $ 152 $ 127 $ 162 Consolidated rental expense representative of an interest factor... 62 84 88 71 7 31 Adjustments for certain companies accounted for by the equity method.... 45 7 8 6 5 6 Total fixed charges...... $ 307 $ 303 $ 260 $ 229 $ 139 $ 199 Ratio of earnings to fixed charges........... 4.3* 11.8* 14.2* 11.6 20.4 13.2 *Based on third-party debt obligations. Including debt with affiliates, the ratio would have been 2.4 as of September 30, 1998, 5.0 as of December 31, 1997 and 5.5 as of December 31, 1996.