<ARTICLE>                     5
<LEGEND>
THE SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM FINANCIAL
STATEMENTS IN THE REGISTRANT'S FORM 10-K AND IS QUALIFIED IN ITS ENTIRETY
BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<MULTIPLIER>                                   1,000
<CURRENCY>                                     U.S. Dollars
       
                                            
<PERIOD-TYPE>                                  12-MOS
<FISCAL-YEAR-END>                              DEC-31-1998
<PERIOD-START>                                 JAN-01-1998
<PERIOD-END>                                   DEC-31-1998
<EXCHANGE-RATE>                                1.00
<CASH>                                          34,038
<SECURITIES>                                         0
<RECEIVABLES>                                   64,715
<ALLOWANCES>                                     9,798
<INVENTORY>                                     13,696
<CURRENT-ASSETS>                               115,579
<PP&E>                                         520,794
<DEPRECIATION>                                 175,686
<TOTAL-ASSETS>                                 753,726
<CURRENT-LIABILITIES>                           80,876
<BONDS>                                              3
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                           391
<OTHER-SE>                                     100,366
<TOTAL-LIABILITY-AND-EQUITY>                   753,726
<SALES>                                        385,826
<TOTAL-REVENUES>                               421,706
<CGS>                                          30,187
<TOTAL-COSTS>                                  87,076
<OTHER-EXPENSES>                              270,780
<LOSS-PROVISION>                                    0
<INTEREST-EXPENSE>                             55,876
<INCOME-PRETAX>                               206,894
<INCOME-TAX>                                  112,642
<INCOME-CONTINUING>                                 0
<DISCONTINUED>                                      0
<EXTRAORDINARY>                               (20,005)
<CHANGES>                                           0
<NET-INCOME>                                   74,247
<EPS-PRIMARY>                                    2.00
<EPS-DILUTED>                                    1.91