<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE 
COMPANY'S BALANCE SHEET AT MARCH 31, 1996 AND INCOME STATEMENT FOR THE 
THREE MONTH PERIOD ENDED MARCH 31, 1996 AND IS QUALIFIED IN ITS ENTIRETY 
BY REFERENCE TO SUCH FINANCIAL STATEMENTS AND THEIR RELATED FOOTNOTES.
</LEGEND>
<MULTIPLIER> 1,000,000
       
                             
<PERIOD-TYPE>                   3-MOS
<FISCAL-YEAR-END>                          DEC-31-1996
<PERIOD-END>                               MAR-31-1996
<CASH>                                             980
<SECURITIES>                                       449
<RECEIVABLES>                                    4,312
<ALLOWANCES>                                        68
<INVENTORY>                                      1,383
<CURRENT-ASSETS>                                 7,920
<PP&E>                                          48,390
<DEPRECIATION>                                  26,728
<TOTAL-ASSETS>                                  34,369
<CURRENT-LIABILITIES>                            9,329
<BONDS>                                          4,274
<COMMON>                                         1,069
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<OTHER-SE>                                      13,607
<TOTAL-LIABILITY-AND-EQUITY>                    34,369
<SALES>                                         10,157
<TOTAL-REVENUES>                                10,336
<CGS>                                                0
<TOTAL-COSTS>                                    9,247
<OTHER-EXPENSES>                                     0
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                                  96
<INCOME-PRETAX>                                  1,089
<INCOME-TAX>                                       473
<INCOME-CONTINUING>                                616
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                       616
<EPS-PRIMARY>                                     0.94
<EPS-DILUTED>                                     0.94