<ARTICLE> 5
<MULTIPLIER> 1,000
<CURRENCY> U.S. DOLLARS

                             
<PERIOD-TYPE>                   3-MOS
<FISCAL-YEAR-END>                          DEC-31-1998
<PERIOD-START>                             JUL-01-1999
<PERIOD-END>                               SEP-30-1999
<EXCHANGE-RATE>                                      1
<CASH>                                          22,594
<SECURITIES>                                     1,758
<RECEIVABLES>                                  345,410
<ALLOWANCES>                                  (25,609)
<INVENTORY>                                    154,524
<CURRENT-ASSETS>                               602,971
<PP&E>                                       8,593,349
<DEPRECIATION>                             (3,563,944)
<TOTAL-ASSETS>                               6,603,003
<CURRENT-LIABILITIES>                        1,253,432
<BONDS>                                      2,036,761<F1>
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                     74,000
<COMMON>                                       153,045
<OTHER-SE>                                   1,564,966<F2>
<TOTAL-LIABILITY-AND-EQUITY>                 6,603,003
<SALES>                                        741,359
<TOTAL-REVENUES>                               741,359
<CGS>                                          469,166
<TOTAL-COSTS>                                  580,672
<OTHER-EXPENSES>                                 5,180
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                              43,475
<INCOME-PRETAX>                                114,843
<INCOME-TAX>                                    43,511
<INCOME-CONTINUING>                             71,332
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                    71,332
<EPS-BASIC>                                       0.63
<EPS-DILUTED>                                     0.63
<FN>
<F1>(1) Includes $21,532 for funds on deposit with trustees.
<F2>(2)  Includes $398,407 for Treasury stock (at cost).
</FN>