<TABLE> <S> <C>
<PAGE>
<ARTICLE> 5
<LEGEND>
THE FINANCIAL DATA SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED
FROM QUARTERLY REPORT ON FORM 10-Q FOR THE QUARTER ENDED SEPTEMBER 30, 2000 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-END> SEP-30-2000
<CASH> 1,938
<SECURITIES> 0
<RECEIVABLES> 6,055
<ALLOWANCES> 0
<INVENTORY> 0
<CURRENT-ASSETS> 8,437
<PP&E> 119,719
<DEPRECIATION> 44,868
<TOTAL-ASSETS> 83,785
<CURRENT-LIABILITIES> 8,859
<BONDS> 0
0
0
<COMMON> 122
<OTHER-SE> 49,243
<TOTAL-LIABILITY-AND-EQUITY> 83,785
<SALES> 24,103
<TOTAL-REVENUES> 24,067
<CGS> 0
<TOTAL-COSTS> 6,313
<OTHER-EXPENSES> 14,140
<LOSS-PROVISION> 0
<INTEREST-EXPENSE> 1,879
<INCOME-PRETAX> 1,868
<INCOME-TAX> 1,685
<INCOME-CONTINUING> 183
<DISCONTINUED> 0
<EXTRAORDINARY> 8,259
<CHANGES> 0
<NET-INCOME> 8,442
<EPS-BASIC> 1.65
<EPS-DILUTED> 1.18
</TABLE>