<ARTICLE>                     5
<LEGEND>                      THIS SCHEDULE CONTAINS SUMMARY FINANCIAL
                              INFORMATION EXTRACTED FROM THE
                              COMPANY'S UNAUDITED FINANCIAL STATEMENTS
                              AS OF AND FOR THE PERIOD ENDING JUNE 30,
                              1995, AND IS QUALIFIED IN ITS ENTIRETY BY
                              REFERENCE TO SUCH FINANCIAL STATEMENTS
<MULTIPLIER>                  1,000
<FISCAL-YEAR-END>             DEC-31-1995
<PERIOD-END>                  JUN-30-1995
<PERIOD-TYPE>                 6-MOS


<CASH>                                    14,399
<SECURITIES>                                   0
<RECEIVABLES>                             52,948
<ALLOWANCES>                                   0
<INVENTORY>                               10,287
<CURRENT-ASSETS>                          82,645
<PP&E>                                   238,569
<DEPRECIATION>                           101,573
<TOTAL-ASSETS>                           225,781
<CURRENT-LIABILITIES>                     37,693
<BONDS>                                   62,559
<COMMON>                                  17,980
<PREFERRED-MANDATORY>                          0
<PREFERRED>                                    0
<OTHER-SE>                                86,961
<TOTAL-LIABILITY-AND-EQUITY>             225,781
<SALES>                                  210,837
<TOTAL-REVENUES>                         211,633
<CGS>                                    186,544
<TOTAL-COSTS>                              5,266
<OTHER-EXPENSES>                               0
<LOSS-PROVISION>                               0
<INTEREST-EXPENSE>                         2,862
<INCOME-PRETAX>                           16,961
<INCOME-TAX>                               6,488
<INCOME-CONTINUING>                       10,473
<DISCONTINUED>                                 0
<EXTRAORDINARY>                                0
<CHANGES>                                      0
<NET-INCOME>                              10,473
<EPS-PRIMARY>                               0.58
<EPS-DILUTED>                               0.58