<ARTICLE>                5
<LEGEND>
THIS  SCHEDULE  CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED  FROM
THE  CONDENSED CONSOLIDATED FINANCIAL STATEMENTS FOR THE PERIOD  ENDED
JUNE  30, 1996, AND IS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO  SUCH
FINANCIAL STATEMENTS.
</LEGEND>
<MULTIPLIER>             1,000,000
       
                                                  
<PERIOD-TYPE>                           6-MOS
<FISCAL-YEAR-END>                       DEC-31-1996
<PERIOD-END>                            JUN-30-1996
<CASH>                                                     113
<SECURITIES>                                                 0
<RECEIVABLES>                                              653
<ALLOWANCES>                                                15
<INVENTORY>                                                573
<CURRENT-ASSETS>                                         2,059
<PP&E>                                                  22,998
<DEPRECIATION>                                           9,107
<TOTAL-ASSETS>                                          17,492
<CURRENT-LIABILITIES>                                    2,167
<BONDS>                                                  4,806
<PREFERRED-MANDATORY>                                        0
<PREFERRED>                                              1,325
<COMMON>                                                    64
<OTHER-SE>                                               3,450
<TOTAL-LIABILITY-AND-EQUITY>                            17,492
<SALES>                                                  4,979
<TOTAL-REVENUES>                                         5,196
<CGS>                                                    3,708
<TOTAL-COSTS>                                            3,708
<OTHER-EXPENSES>                                           135
<LOSS-PROVISION>                                             0
<INTEREST-EXPENSE>                                         260
<INCOME-PRETAX>                                            593
<INCOME-TAX>                                               291
<INCOME-CONTINUING>                                        345
<DISCONTINUED>                                               0
<EXTRAORDINARY>                                            (30)
<CHANGES>                                                    0
<NET-INCOME>                                               315
<EPS-PRIMARY>                                              .84
<EPS-DILUTED>                                              .82