<ARTICLE> 5
<MULTIPLIER> 1,000

                             
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          DEC-31-1999
<PERIOD-START>                             JAN-01-1999
<PERIOD-END>                               JUN-30-1999
<CASH>                                               0
<SECURITIES>                                         0
<RECEIVABLES>                                   35,364
<ALLOWANCES>                                         0
<INVENTORY>                                     24,380
<CURRENT-ASSETS>                                62,462
<PP&E>                                         252,675
<DEPRECIATION>                                (85,646)
<TOTAL-ASSETS>                                 261,684
<CURRENT-LIABILITIES>                           47,060
<BONDS>                                              0
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                             0
<OTHER-SE>                                     155,744
<TOTAL-LIABILITY-AND-EQUITY>                   261,684
<SALES>                                        169,364
<TOTAL-REVENUES>                               169,807
<CGS>                                          132,210
<TOTAL-COSTS>                                  158,618
<OTHER-EXPENSES>                                 (197)
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                                   0
<INCOME-PRETAX>                                 11,386
<INCOME-TAX>                                     3,483
<INCOME-CONTINUING>                              7,903
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                     7,903
<EPS-BASIC>                                       0.00
<EPS-DILUTED>                                     0.00