<TABLE> <S> <C>

<ARTICLE>                                       5
<LEGEND>
The schedule contains summary financial information extracted from
financial statements in the Registrant's Form 10-Q and is qualified in its
entirety by reference to such financial statements.
</LEGEND>
<MULTIPLIER>                                     1,000
       
<S>                                             <C>
<PERIOD-TYPE>                                    9-MOS
<FISCAL-YEAR-END>                                                DEC-31-1998
<PERIOD-START>                                                   JAN-01-1998
<PERIOD-END>                                                     SEP-30-1998
<CASH>                                                                        33,179
<SECURITIES>                                                                       0
<RECEIVABLES>                                                                 63,512
<ALLOWANCES>                                                                  10,531
<INVENTORY>                                                                   18,627
<CURRENT-ASSETS>                                                             116,610
<PP&E>                                                                       512,197
<DEPRECIATION>                                                               181,606
<TOTAL-ASSETS>                                                               753,339
<CURRENT-LIABILITIES>                                                         67,921
<BONDS>                                                                      199,851
<PREFERRED-MANDATORY>                                                              0
<PREFERRED>                                                                        0
<COMMON>                                                                         368
<OTHER-SE>                                                                   137,414
<TOTAL-LIABILITY-AND-EQUITY>                                                 753,339
<SALES>                                                                      290,976
<TOTAL-REVENUES>                                                             319,380
<CGS>                                                                         23,867
<TOTAL-COSTS>                                                                 60,931
<OTHER-EXPENSES>                                                             207,572
<LOSS-PROVISION>                                                                   0
<INTEREST-EXPENSE>                                                            45,739
<INCOME-PRETAX>                                                              238,717
<INCOME-TAX>                                                                 101,930
<INCOME-CONTINUING>                                                                0
<DISCONTINUED>                                                                     0
<EXTRAORDINARY>                                                               (3,971)
<CHANGES>                                                                          0
<NET-INCOME>                                                                 132,816
<EPS-PRIMARY>                                                                   3.57
<EPS-DILUTED>                                                                   3.44
        

</TABLE>