<TABLE> <S> <C>
<PAGE>
<ARTICLE> 5
<LEGEND>
This schedule contains summary financial information extracted from consolidated
financial statements 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> 6,606
<SECURITIES> 15,840
<RECEIVABLES> 23,919
<ALLOWANCES> 0
<INVENTORY> 1,315
<CURRENT-ASSETS> 50,991
<PP&E> 71,524
<DEPRECIATION> 29,359
<TOTAL-ASSETS> 99,318
<CURRENT-LIABILITIES> 15,501
<BONDS> 0
0
0
<COMMON> 4,195
<OTHER-SE> 76,038
<TOTAL-LIABILITY-AND-EQUITY> 99,318
<SALES> 87,665
<TOTAL-REVENUES> 87,665
<CGS> 80,282
<TOTAL-COSTS> 83,477
<OTHER-EXPENSES> (816)
<LOSS-PROVISION> 0
<INTEREST-EXPENSE> 25
<INCOME-PRETAX> 4,979
<INCOME-TAX> 1,824
<INCOME-CONTINUING> 3,155
<DISCONTINUED> 0
<EXTRAORDINARY> 0
<CHANGES> 0
<NET-INCOME> 3,155
<EPS-BASIC> 0.27
<EPS-DILUTED> 0.27
</TABLE>