<ARTICLE> 5 
<LEGEND> 
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE  
COMPANY'S BALANCE SHEET AT SEPTEMBER 30, 1996 AND INCOME STATEMENT FOR THE  
NINE MONTH PERIOD ENDED  SEPTEMBER 30, 1996 AND IS QUALIFIED IN ITS ENTIRETY
BY REFERENCE TO SUCH FINANCIAL STATEMENTS AND THEIR RELATED FOOTNOTES. 
</LEGEND> 
<MULTIPLIER> 1,000,000 
        
                              
<PERIOD-TYPE>                   9-MOS 
<FISCAL-YEAR-END>                          DEC-31-1996 
<PERIOD-END>                               SEP-30-1996 
<CASH>                                           1,091 
<SECURITIES>                                       436 
<RECEIVABLES>                                    4,458 
<ALLOWANCES>                                        67 
<INVENTORY>                                      1,447 
<CURRENT-ASSETS>                                 8,249 
<PP&E>                                          48,316 
<DEPRECIATION>                                  26,858 
<TOTAL-ASSETS>                                  35,079 
<CURRENT-LIABILITIES>                            9,243 
<BONDS>                                          4,023 
<COMMON>                                         1,069 
<PREFERRED-MANDATORY>                                0 
<PREFERRED>                                          0 
<OTHER-SE>                                      14,427 
<TOTAL-LIABILITY-AND-EQUITY>                    35,079 
<SALES>                                         31,517 
<TOTAL-REVENUES>                                32,382 
<CGS>                                                0 
<TOTAL-COSTS>                                   28,622 
<OTHER-EXPENSES>                                     0 
<LOSS-PROVISION>                                     0 
<INTEREST-EXPENSE>                                 274 
<INCOME-PRETAX>                                  3,760 
<INCOME-TAX>                                     1,617 
<INCOME-CONTINUING>                              2,143 
<DISCONTINUED>                                       0 
<EXTRAORDINARY>                                      0 
<CHANGES>                                            0 
<NET-INCOME>                                     2,143 
<EPS-PRIMARY>                                     3.28 
<EPS-DILUTED>                                     3.28