<ARTICLE> 5
<LEGEND>
THE SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM EXXON'S
CONDENSED CONSOLIDATED BALANCE SHEET AT 6/30/99 AND EXXON'S CONDENSED
CONSOLIDATED STATEMENT OF INCOME FOR THE SIX MONTHS ENDED 6/30/99, THAT ARE
CONTAINED IN EXXON'S FORM 10-Q FOR THE QUARTERLY PERIOD ENDED 6/30/99.  THE
SCHEDULE IS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<MULTIPLIER> 1,000,000

                             
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          DEC-31-1999
<PERIOD-END>                               JUN-30-1999
<CASH>                                           1,328
<SECURITIES>                                        20
<RECEIVABLES>                                    6,548
<ALLOWANCES>                                        95
<INVENTORY>                                      4,787
<CURRENT-ASSETS>                                16,429
<PP&E>                                         129,053
<DEPRECIATION>                                  64,051
<TOTAL-ASSETS>                                  91,235
<CURRENT-LIABILITIES>                           19,710
<BONDS>                                          4,497
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                         44
<COMMON>                                         2,323
<OTHER-SE>                                      40,462
<TOTAL-LIABILITY-AND-EQUITY>                    91,235
<SALES>                                         55,235
<TOTAL-REVENUES>                                56,306
<CGS>                                           22,398
<TOTAL-COSTS>                                   22,398
<OTHER-EXPENSES>                                 8,415
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                                 139
<INCOME-PRETAX>                                  2,674
<INCOME-TAX>                                       449
<INCOME-CONTINUING>                              2,225
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                     2,225
<EPS-BASIC>                                       0.92
<EPS-DILUTED>                                     0.91