<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE
FINANCIAL STATEMENTS INCLUDED IN THE ACCOMPANYING FORM 10-K AND IS QUALIFIED IN
ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<MULTIPLIER> 1,000
       
                             
<PERIOD-TYPE>                   YEAR
<FISCAL-YEAR-END>                          DEC-31-1998
<PERIOD-END>                               DEC-31-1998
<CASH>                                         175,267
<SECURITIES>                                    40,325
<RECEIVABLES>                                   88,577
<ALLOWANCES>                                     1,956
<INVENTORY>                                      1,561
<CURRENT-ASSETS>                               311,733
<PP&E>                                         736,583
<DEPRECIATION>                                 111,722
<TOTAL-ASSETS>                               1,257,975
<CURRENT-LIABILITIES>                           71,718
<BONDS>                                        472,799
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                           141
<OTHER-SE>                                     542,641
<TOTAL-LIABILITY-AND-EQUITY>                   542,782
<SALES>                                              0
<TOTAL-REVENUES>                               385,791
<CGS>                                                0
<TOTAL-COSTS>                                    4,223
<OTHER-EXPENSES>                               183,499
<LOSS-PROVISION>                                   455
<INTEREST-EXPENSE>                              22,798
<INCOME-PRETAX>                                172,896
<INCOME-TAX>                                    60,293
<INCOME-CONTINUING>                            124,618
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                  1,309
<CHANGES>                                            0
<NET-INCOME>                                   125,927
<EPS-PRIMARY>                                     9.59
<EPS-DILUTED>                                     8.25