<TABLE> <S> <C>
<PAGE>
<ARTICLE> 5
<LEGEND>
THIS FINANCIAL DATA SCHEDULE IS SUBMITTED IN ACCORDANCE WITH REGULATION S-K ITEM
601(C)(2). THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM
FORM 10-Q FOR THE QUARTERLY PERIOD ENDED SEPTEMBER 30, 2000 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-31-2000
<PERIOD-END> SEP-30-2000
<CASH> 9,387
<SECURITIES> 22,882
<RECEIVABLES> 85,462
<ALLOWANCES> 25,885
<INVENTORY> 0
<CURRENT-ASSETS> 117,442<F1>
<PP&E> 4,250,307
<DEPRECIATION> 611,981
<TOTAL-ASSETS> 4,518,754
<CURRENT-LIABILITIES> 593,362<F2>
<BONDS> 3,402,928
0
41
<COMMON> 692
<OTHER-SE> 659,721
<TOTAL-LIABILITY-AND-EQUITY> 4,518,754
<SALES> 515,451
<TOTAL-REVENUES> 515,451
<CGS> 0
<TOTAL-COSTS> 232,780
<OTHER-EXPENSES> 0
<LOSS-PROVISION> 5,212
<INTEREST-EXPENSE> 185,983
<INCOME-PRETAX> 139,482
<INCOME-TAX> 227
<INCOME-CONTINUING> 136,284
<DISCONTINUED> 0
<EXTRAORDINARY> 3,198
<CHANGES> 0
<NET-INCOME> 139,255
<EPS-BASIC> 1.86
<EPS-DILUTED> 1.82
<FN>
<F1>Current assets include cash, unrestricted marketable securities, current
portion of accounts and notes receivables and prepaid expenses and deposits.
<F2>Current liabilities include the current portion of long-term debt and
accounts payable, accrued expenses and other liabilities.
</FN>
</TABLE>
