<TABLE> <S> <C>
<PAGE>
<ARTICLE> 5
<MULTIPLIER> 1,000
<S> <C> <C>
<PERIOD-TYPE> 3-MOS 6-MOS
<FISCAL-YEAR-END> DEC-31-2000 DEC-31-2000
<PERIOD-START> APR-01-2000 JAN-01-2000
<PERIOD-END> JUN-30-2000 JUN-30-2000
<CASH> 31,798 31,798
<SECURITIES> 0 0
<RECEIVABLES> 11,652 11,652
<ALLOWANCES> 0 0
<INVENTORY> 332 332
<CURRENT-ASSETS> 44,654 44,654
<PP&E> 288,243 288,243
<DEPRECIATION> 127,315 127,315
<TOTAL-ASSETS> 209,238 209,238
<CURRENT-LIABILITIES> 15,479 15,479
<BONDS> 124,563 124,563
0 0
6,000 6,000
<COMMON> 91 91
<OTHER-SE> 63,105 63,105
<TOTAL-LIABILITY-AND-EQUITY> 209,238 209,238
<SALES> 16,200 30,878
<TOTAL-REVENUES> 16,859 32,024
<CGS> 6,139 11,418
<TOTAL-COSTS> 18,182 33,589
<OTHER-EXPENSES> 0 0
<LOSS-PROVISION> 0 0
<INTEREST-EXPENSE> 3,176 6,344
<INCOME-PRETAX> (1,323) (1,565)
<INCOME-TAX> 0 0
<INCOME-CONTINUING> (1,323) (1,565)
<DISCONTINUED> 0 0
<EXTRAORDINARY> 0 0
<CHANGES> 0 0
<NET-INCOME> (1,323) (1,565)
<EPS-BASIC> (.16) (.19)
<EPS-DILUTED> (.16) (.19)
</TABLE>