<TABLE> <S> <C>
<PAGE>
<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE
CONSOLIDATED BALANCE SHEET AND THE CONSOLIDATED STATEMENT OF OPERATIONS 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-31-2000
<PERIOD-START> JAN-01-2000
<PERIOD-END> SEP-30-2000
<CASH> 115,389
<SECURITIES> 0
<RECEIVABLES> 48,329
<ALLOWANCES> 3,300
<INVENTORY> 0
<CURRENT-ASSETS> 0
<PP&E> 1,968,327
<DEPRECIATION> 309,577
<TOTAL-ASSETS> 2,003,991
<CURRENT-LIABILITIES> 0
<BONDS> 924,167
0
0
<COMMON> 1,081
<OTHER-SE> 667,163
<TOTAL-LIABILITY-AND-EQUITY> 2,003,991
<SALES> 446,812
<TOTAL-REVENUES> 629,330
<CGS> 297,386
<TOTAL-COSTS> 426,351
<OTHER-EXPENSES> 8,768
<LOSS-PROVISION> 0
<INTEREST-EXPENSE> 33,529
<INCOME-PRETAX> 160,682
<INCOME-TAX> 64,273
<INCOME-CONTINUING> 96,409
<DISCONTINUED> 0
<EXTRAORDINARY> 0
<CHANGES> 0
<NET-INCOME> 96,409
<EPS-BASIC> 0.90
<EPS-DILUTED> 0.89
</TABLE>