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                                                                     EXHIBIT 12


                       UNION PACIFIC RESOURCES GROUP INC.
               COMPUTATION OF RATIO OF EARNINGS TO FIXED CHARGES
                      (AMOUNTS IN MILLIONS, EXCEPT RATIOS)
                                  (UNAUDITED)



                                                                                      YEAR ENDED DECEMBER 31,
                                                                 --------------------------------------------------------------
                                                                    1999         1998          1997         1996        1995
                                                                                                       
Earnings from continuing operations before income taxes ....     $  (51.2)    $ (1,488.3)   $  418.9     $  366.1     $  368.3

Add (deduct) distributions greater (to extent less) than
       income of unconsolidated affiliates .................          0.9           (5.8)       (3.8)        (4.2)         2.3

Fixed charges from below ...................................        226.1          262.3        49.0         45.9         17.8

Capitalized interest included in fixed charges .............         (0.4)          (0.9)       (2.0)          --         (0.8)
                                                                 --------     ----------    --------     --------     --------

       Earnings available for fixed  charges................     $  175.4     $ (1,232.7)   $  462.1     $  407.8     $  387.6
                                                                 ========     ==========    ========     ========     ========
Fixed charges:
       Interest expense ....................................     $  218.7     $    249.8    $   39.5     $   38.9     $    9.5
       Portion of rentals representing an interest factor...          7.0           11.6         7.5          7.0          7.5
       Interest capitalized ................................          0.4            0.9         2.0           --          0.8
                                                                 --------     ----------    --------     --------     --------
                Total fixed charges ........................     $  226.1     $    262.3    $   49.0     $   45.9     $   17.8
                                                                 ========     ==========    ========     ========     ========
Ratio of earnings to fixed charges .........................          0.8           (4.7)        9.4          8.9         21.8
                                                                 ========     ==========    ========     ========     ========



For the year ended December 31, 1999, earnings are insufficient by $50.7
million in order to cover fixed charges.

For the year ended December 31, 1998, earnings are insufficient by $1,495
million in order to cover fixed charges.