EXHIBIT 12
 
                               EXXON CORPORATION
 
               COMPUTATION OF RATIO OF EARNINGS TO FIXED CHARGES
                             (MILLIONS OF DOLLARS)
 


                                               YEAR ENDED DECEMBER 31,
                                       ----------------------------------------
                                        1994    1993    1992    1991     1990
                                       ------  ------  ------  -------  -------
                                                         
Income before cumulative effect of
 accounting changes..................  $5,100  $5,280  $4,810  $ 5,600  $ 5,010
Excess/(shortfall) of dividends over
 earnings of affiliates owned less
 than 50% accounted for by the equity
 method..............................     (20)    (24)    (28)     (75)      16
Provision for income taxes(1)........   3,025   3,113   2,811    3,304    3,482
Capitalized interest.................    (306)   (291)   (287)    (256)    (134)
Minority interests in earnings of
 consolidated subsidiaries...........     231     246     229      150      250
                                       ------  ------  ------  -------  -------
                                        8,030   8,324   7,535    8,723    8,624
                                       ------  ------  ------  -------  -------
Fixed Charges:(1)
 Interest expense--borrowings........     530     533     580      711    1,139
 Capitalized interest................     405     374     364      331      210
 Rental expense representative of in-
  terest factor......................     401     387     382      391      355
 Dividends on preferred stock........       3       7      29       27       36
                                       ------  ------  ------  -------  -------
                                        1,339   1,301   1,355    1,460    1,740
                                       ------  ------  ------  -------  -------
Total adjusted earnings available for
 payment of fixed charges............  $9,369  $9,625  $8,890  $10,183  $10,364
                                       ======  ======  ======  =======  =======
Number of times fixed charges are
 earned..............................     7.0     7.4     6.6      7.0      6.0

- ---------------------
Note:
(1) The provision for income taxes and the fixed charges include Exxon
    Corporation's share of non-consolidated companies 50% owned.
 
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