<ARTICLE> 5
<MULTIPLIER> 1,000
<CURRENCY> U.S.DOLLARS
       
                             
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          DEC-31-1997
<PERIOD-START>                             JAN-01-1998
<PERIOD-END>                               JUN-30-1998
<EXCHANGE-RATE>                                      1
<CASH>                                          17,893
<SECURITIES>                                       366
<RECEIVABLES>                                  344,637
<ALLOWANCES>                                    20,048
<INVENTORY>                                    158,144
<CURRENT-ASSETS>                               590,132
<PP&E>                                       8,485,290
<DEPRECIATION>                               3,249,382
<TOTAL-ASSETS>                               6,786,590
<CURRENT-LIABILITIES>                          696,045
<BONDS>                                      2,151,567
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                    170,086
<COMMON>                                       153,045
<OTHER-SE>                                   1,865,240
<TOTAL-LIABILITY-AND-EQUITY>                 6,786,590
<SALES>                                      1,273,122
<TOTAL-REVENUES>                             1,273,122
<CGS>                                          728,927
<TOTAL-COSTS>                                  963,270
<OTHER-EXPENSES>                                 4,611
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                              90,972
<INCOME-PRETAX>                                217,208
<INCOME-TAX>                                    85,080
<INCOME-CONTINUING>                            132,128
<DISCONTINUED>                                       0
<EXTRAORDINARY>                              (265,446)
<CHANGES>                                            0
<NET-INCOME>                                 (133,318)
<EPS-PRIMARY>                                   (1.09)<F1>
<EPS-DILUTED>                                   (1.09)<F1>
<FN>
<F1>*Includes ($2.17) for extraordinary charge, net.
</FN>