<TABLE> <S> <C>
<PAGE>
<ARTICLE> 5
<MULTIPLIER> 1,000
<S> <C>
<PERIOD-TYPE> 3-MOS
<FISCAL-YEAR-END> DEC-31-2000
<PERIOD-START> JAN-01-2000
<PERIOD-END> JUN-30-2000
<CASH> 477
<SECURITIES> 0
<RECEIVABLES> 40,750
<ALLOWANCES> 0
<INVENTORY> 0
<CURRENT-ASSETS> 41,227
<PP&E> 1,875,505
<DEPRECIATION> (127,261)
<TOTAL-ASSETS> 1,789,471
<CURRENT-LIABILITIES> 19,004
<BONDS> 856,464
0
53,750
<COMMON> 449
<OTHER-SE> 859,804<F1>
<TOTAL-LIABILITY-AND-EQUITY> 1,789,471
<SALES> 65,437
<TOTAL-REVENUES> 65,437
<CGS> 19,213
<TOTAL-COSTS> 19,213
<OTHER-EXPENSES> 13,561<F2>
<LOSS-PROVISION> 0
<INTEREST-EXPENSE> 12,094
<INCOME-PRETAX> 20,569
<INCOME-TAX> 0
<INCOME-CONTINUING> 0
<DISCONTINUED> 0
<EXTRAORDINARY> 2,572<F3>
<CHANGES> 0
<NET-INCOME> 17,997<F4>
<EPS-BASIC> 0.40
<EPS-DILUTED> 0.40
<FN>
<F1>includes $88,570 of minority interest.
<F2>includes $9,680 of depreciation, a non cash charge.
<F3>includes $1,430 of minority interest and $1,142 of dividends to preferred
shareholders.
<F4>Represents net income available to common shareholders.
</FN>
</TABLE>