<TABLE> <S> <C>
<PAGE>
<ARTICLE> 5
<LEGEND> This schedule contains summary financial information extracted from
the registrant's financial statements included in its report on Form 10-Q for
the nine months ended September 30, 2000 and is qualified in its entirety by
reference to such financial statements in such report.
</LEGEND>
<MULTIPLIER> 1,000
<S> <C>
<PERIOD-TYPE> 9-MOS
<FISCAL-YEAR-END> DEC-31-2000
<PERIOD-END> SEP-30-2000
<CASH> 35,672
<SECURITIES> 0
<RECEIVABLES> 75,297
<ALLOWANCES> 0
<INVENTORY> 0
<CURRENT-ASSETS> 0
<PP&E> 5,379,011
<DEPRECIATION> 461,279
<TOTAL-ASSETS> 5,172,495
<CURRENT-LIABILITIES> 0
<BONDS> 3,184,902
337,500
0
<COMMON> 5,215
<OTHER-SE> 1,444,831
<TOTAL-LIABILITY-AND-EQUITY> 5,172,495
<SALES> 500,795
<TOTAL-REVENUES> 500,795
<CGS> 0
<TOTAL-COSTS> 258,596
<OTHER-EXPENSES> 0
<LOSS-PROVISION> 1,368
<INTEREST-EXPENSE> 152,132
<INCOME-PRETAX> 87,554
<INCOME-TAX> 0
<INCOME-CONTINUING> 87,554
<DISCONTINUED> 0
<EXTRAORDINARY> 0
<CHANGES> 0
<NET-INCOME> 87,554
<EPS-BASIC> 0.48
<EPS-DILUTED> 0.48
</TABLE>