1 EXHIBIT 12(b) UNION PACIFIC CORPORATION AND SUBSIDIARY COMPANIES COMPUTATION OF RATIO OF EARNINGS TO FIXED CHARGES (UNAUDITED) Six Months Ended June 30, ------------------------- Millions of Dollars Except Ratios 2000 1999 - --------------------------------- ---- ---- Earnings Net income ........................................................... $ 429 $ 323 Undistributed equity earnings ........................................ 60 (19) ------- ------- Total ................................................................ 489 304 ------- ------- Income Taxes .............................................................. 247 159 ------- ------- Fixed Charges: Interest expense including amortization of debt discount ............. 362 370 Portion of rentals representing an interest factor ................... 86 92 ------- ------- Total fixed charges .................................................. 448 462 ------- ------- Earnings Available for Fixed Charges ...................................... $ 1,184 $ 925 ------- ------- Ratio of earnings to fixed charges (Note 8) ............................... 2.6 2.0 ------- -------