<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM YEAR END
1996 FINANCIAL STATEMENTS AND IS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH
FINANCIAL STATEMENTS.
</LEGEND>
<MULTIPLIER> 1,000
       
                             
<PERIOD-TYPE>                   YEAR
<FISCAL-YEAR-END>                          DEC-31-1996
<PERIOD-START>                             JAN-01-1996
<PERIOD-END>                               DEC-31-1996
<CASH>                                           4,286
<SECURITIES>                                         0
<RECEIVABLES>                                   15,016
<ALLOWANCES>                                       506
<INVENTORY>                                          0
<CURRENT-ASSETS>                                22,012
<PP&E>                                         135,396
<DEPRECIATION>                                  45,759
<TOTAL-ASSETS>                                 117,463
<CURRENT-LIABILITIES>                           15,729
<BONDS>                                              0
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                        64,482
<OTHER-SE>                                       6,450
<TOTAL-LIABILITY-AND-EQUITY>                   117,463
<SALES>                                         79,024
<TOTAL-REVENUES>                                79,024
<CGS>                                           63,860
<TOTAL-COSTS>                                   74,548
<OTHER-EXPENSES>                                     0
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                                 223
<INCOME-PRETAX>                                  4,879
<INCOME-TAX>                                     1,757
<INCOME-CONTINUING>                              3,122
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                     3,122
<EPS-PRIMARY>                                      .10
<EPS-DILUTED>                                      .10