1 EXHIBIT 12(a) UNION PACIFIC CORPORATION AND SUBSIDIARY COMPANIES COMPUTATION OF RATIO OF EARNINGS TO FIXED CHARGES (UNAUDITED) Three Months Ended June 30, --------------------------- Millions of Dollars Except Ratios 2000 1999 - --------------------------------- ---- ---- Earnings: Net Income ........................................................... $ 244 $ 194 Undistributed equity earnings ........................................ (13) (10) ----- ----- Total ................................................................ 231 184 ----- ----- Income taxes .............................................................. 142 87 ----- ----- Fixed charges: Interest expense including amortization of debt discount ............. 180 184 Portion of rentals representing an interest factor ................... 42 46 ----- ----- Total fixed charges .................................................. 222 230 ----- ----- Earnings available for fixed charges ...................................... $ 595 $ 501 ----- ----- Ratio of earnings to fixed charges (Note 8) ............................... 2.7 2.2 ----- -----