<TABLE> <S> <C>
<PAGE>
<ARTICLE> 5
<MULTIPLIER> 1,000
<S> <C> <C>
<PERIOD-TYPE> 3-MOS 9-MOS
<FISCAL-YEAR-END> DEC-31-2000 DEC-31-2000
<PERIOD-START> JUL-01-2000 JAN-01-2000
<PERIOD-END> SEP-30-2000 SEP-30-2000
<CASH> 4,250 4,250
<SECURITIES> 0 0
<RECEIVABLES> 7,478 7,478
<ALLOWANCES> 1,687 1,687
<INVENTORY> 0 0
<CURRENT-ASSETS> 20,580 20,580
<PP&E> 679,080 679,080
<DEPRECIATION> 97,178 97,178
<TOTAL-ASSETS> 614,210 614,210
<CURRENT-LIABILITIES> 17,960 17,960
<BONDS> 336,465 336,465
0 0
0 0
<COMMON> 357 357
<OTHER-SE> 257,873 257,873
<TOTAL-LIABILITY-AND-EQUITY> 614,210 614,210
<SALES> 34,230 99,520
<TOTAL-REVENUES> 34,518 100,199
<CGS> 15,486 45,568
<TOTAL-COSTS> 15,486 45,568
<OTHER-EXPENSES> 1,914 5,757
<LOSS-PROVISION> 0 0
<INTEREST-EXPENSE> 6,394 18,796
<INCOME-PRETAX> 12,793 33,645
<INCOME-TAX> 0 0
<INCOME-CONTINUING> 12,793 33,645
<DISCONTINUED> 0 0
<EXTRAORDINARY> 0 0
<CHANGES> 0 0
<NET-INCOME> 12,793 33,645
<EPS-BASIC> 0.36 0.94
<EPS-DILUTED> 0.36 0.94
</TABLE>