<ARTICLE> 5 
<LEGEND> 
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE  
COMPANY'S BALANCE SHEET AT JUNE 30, 1996 AND INCOME STATEMENT FOR THE  
SIX MONTH PERIOD ENDED  JUNE 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>                   6-MOS 
<FISCAL-YEAR-END>                          DEC-31-1996 
<PERIOD-END>                               JUN-30-1996 
<CASH>                                           1,052 
<SECURITIES>                                       437 
<RECEIVABLES>                                    4,400 
<ALLOWANCES>                                        68 
<INVENTORY>                                      1,579 
<CURRENT-ASSETS>                                 8,298 
<PP&E>                                          48,854 
<DEPRECIATION>                                  27,082 
<TOTAL-ASSETS>                                  34,658 
<CURRENT-LIABILITIES>                            9,168 
<BONDS>                                          4,042 
<COMMON>                                         1,069 
<PREFERRED-MANDATORY>                                0 
<PREFERRED>                                          0 
<OTHER-SE>                                      14,129 
<TOTAL-LIABILITY-AND-EQUITY>                    34,658 
<SALES>                                         20,671 
<TOTAL-REVENUES>                                21,333 
<CGS>                                                0 
<TOTAL-COSTS>                                   18,824 
<OTHER-EXPENSES>                                     0 
<LOSS-PROVISION>                                     0 
<INTEREST-EXPENSE>                                 181 
<INCOME-PRETAX>                                  2,509 
<INCOME-TAX>                                     1,021 
<INCOME-CONTINUING>                              1,488 
<DISCONTINUED>                                       0 
<EXTRAORDINARY>                                      0 
<CHANGES>                                            0 
<NET-INCOME>                                     1,488 
<EPS-PRIMARY>                                     2.28 
<EPS-DILUTED>                                     2.28