<ARTICLE> 5
<LEGEND>
THE SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM EXXON'S
CONDENSED CONSOLIDATED BALANCE SHEET AT 3/31/99 AND EXXON'S CONDENSED
CONSOLIDATED STATEMENT OF INCOME FOR THE THREE MONTHS ENDED 3/31/99, THAT ARE
CONTAINED IN EXXON'S FORM 10-Q FOR THE QUARTERLY PERIOD ENDED 3/31/99.  THE
SCHEDULE IS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<MULTIPLIER> 1,000,000
       
                             
<PERIOD-TYPE>                   3-MOS
<FISCAL-YEAR-END>                          DEC-31-1999
<PERIOD-END>                               MAR-31-1999
<CASH>                                           1,385
<SECURITIES>                                        20
<RECEIVABLES>                                    6,441
<ALLOWANCES>                                        98
<INVENTORY>                                      4,947
<CURRENT-ASSETS>                                16,709
<PP&E>                                         127,667
<DEPRECIATION>                                  63,252
<TOTAL-ASSETS>                                  90,731
<CURRENT-LIABILITIES>                           18,872
<BONDS>                                          4,563
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                         91
<COMMON>                                         2,323
<OTHER-SE>                                      40,588
<TOTAL-LIABILITY-AND-EQUITY>                    90,731
<SALES>                                         26,341
<TOTAL-REVENUES>                                26,884
<CGS>                                           10,206
<TOTAL-COSTS>                                   10,206
<OTHER-EXPENSES>                                 4,386
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                                  94
<INCOME-PRETAX>                                  1,003
<INCOME-TAX>                                      (17)
<INCOME-CONTINUING>                              1,020
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                     1,020
<EPS-PRIMARY>                                     0.42
<EPS-DILUTED>                                     0.42