<ARTICLE> 5
<LEGEND>
THE SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM EXXON'S
CONDENSED CONSOLIDATED BALANCE SHEET AT 9/30/98 AND EXXON'S CONDENSED
CONSOLIDATED STATEMENT OF INCOME FOR THE NINE MONTHS ENDED 9/30/98, THAT ARE
CONTAINED IN EXXON'S FORM 10-Q FOR THE QUARTERLY PERIOD ENDED 9/30/98.  THE
SCHEDULE IS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<MULTIPLIER> 1,000,000
       
                             
<PERIOD-TYPE>                   9-MOS
<FISCAL-YEAR-END>                          DEC-31-1998
<PERIOD-END>                               SEP-30-1998
<CASH>                                           2,101
<SECURITIES>                                       108
<RECEIVABLES>                                    6,597
<ALLOWANCES>                                       103
<INVENTORY>                                      5,462
<CURRENT-ASSETS>                                18,077
<PP&E>                                         133,160
<DEPRECIATION>                                  64,883
<TOTAL-ASSETS>                                  95,227
<CURRENT-LIABILITIES>                           18,765
<BONDS>                                          6,912
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                        119
<COMMON>                                         2,323
<OTHER-SE>                                      41,317
<TOTAL-LIABILITY-AND-EQUITY>                    95,227
<SALES>                                         87,044
<TOTAL-REVENUES>                                88,633
<CGS>                                           34,463
<TOTAL-COSTS>                                   34,463
<OTHER-EXPENSES>                                13,514
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                                 174
<INCOME-PRETAX>                                  7,068
<INCOME-TAX>                                     2,158
<INCOME-CONTINUING>                              4,910
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                     4,910
<EPS-PRIMARY>                                     2.01
<EPS-DILUTED>                                     1.99