<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE
FINANCIAL STATEMENTS INCLUDED IN THE ACCOMPANYING FORM 10-Q AND IS QUALIFIED IN
ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<MULTIPLIER> 1,000
       
                             
<PERIOD-TYPE>                   3-MOS
<FISCAL-YEAR-END>                          DEC-31-1999
<PERIOD-END>                               MAR-31-1999
<CASH>                                         180,526
<SECURITIES>                                    40,214
<RECEIVABLES>                                   83,611
<ALLOWANCES>                                     2,246
<INVENTORY>                                      1,565
<CURRENT-ASSETS>                               305,549
<PP&E>                                         773,476
<DEPRECIATION>                                 117,799
<TOTAL-ASSETS>                               1,211,538
<CURRENT-LIABILITIES>                           47,037
<BONDS>                                        468,098
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                           142
<OTHER-SE>                                     532,098
<TOTAL-LIABILITY-AND-EQUITY>                 1,211,538
<SALES>                                              0
<TOTAL-REVENUES>                                77,721
<CGS>                                                0
<TOTAL-COSTS>                                      715
<OTHER-EXPENSES>                                40,980
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                               5,417
<INCOME-PRETAX>                                 18,112
<INCOME-TAX>                                     6,249
<INCOME-CONTINUING>                             11,863
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                    260
<CHANGES>                                            0
<NET-INCOME>                                    13,539
<EPS-PRIMARY>                                     1.10
<EPS-DILUTED>                                     0.99