<TABLE> <S> <C>
<PAGE>
<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM
CONSOLIDATED BALANCE SHEETS, CONSOLIDATED STATEMENTS OF OPERATIONS 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-START> JAN-01-2000
<PERIOD-END> SEP-30-2000
<CASH> 3,609
<SECURITIES> 0
<RECEIVABLES> 2,751
<ALLOWANCES> 0
<INVENTORY> 0
<CURRENT-ASSETS> 10,150
<PP&E> 753,267
<DEPRECIATION> 268,411
<TOTAL-ASSETS> 499,004
<CURRENT-LIABILITIES> 19,142
<BONDS> 454,895
0
0
<COMMON> 160
<OTHER-SE> 21,680
<TOTAL-LIABILITY-AND-EQUITY> 499,004
<SALES> 0
<TOTAL-REVENUES> 90,690
<CGS> 0
<TOTAL-COSTS> 0
<OTHER-EXPENSES> 55,716
<LOSS-PROVISION> 0
<INTEREST-EXPENSE> 23,847
<INCOME-PRETAX> 20,588
<INCOME-TAX> 0
<INCOME-CONTINUING> 17,777
<DISCONTINUED> 0
<EXTRAORDINARY> 0
<CHANGES> 0
<NET-INCOME> 17,777
<EPS-BASIC> 1.14
<EPS-DILUTED> 1.12
</TABLE>