<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

                             
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          DEC-31-1999
<PERIOD-START>                             JAN-01-1999
<PERIOD-END>                               JUN-30-1999
<CASH>                                          12,832
<SECURITIES>                                     6,000
<RECEIVABLES>                                   20,614
<ALLOWANCES>                                         0
<INVENTORY>                                      1,198
<CURRENT-ASSETS>                                43,147
<PP&E>                                          68,767
<DEPRECIATION>                                  23,748
<TOTAL-ASSETS>                                  92,661
<CURRENT-LIABILITIES>                           15,939
<BONDS>                                              0
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                         4,162
<OTHER-SE>                                      69,448
<TOTAL-LIABILITY-AND-EQUITY>                    92,661
<SALES>                                         58,435
<TOTAL-REVENUES>                                58,435
<CGS>                                           50,196
<TOTAL-COSTS>                                   52,467
<OTHER-EXPENSES>                                 (277)
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                                  35
<INCOME-PRETAX>                                  6,210
<INCOME-TAX>                                     2,330
<INCOME-CONTINUING>                              3,880
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                     3,880
<EPS-BASIC>                                       0.17
<EPS-DILUTED>                                     0.17