<ARTICLE> 5
<MULTIPLIER> 1,000
       
                                                  
<PERIOD-TYPE>                   YEAR                   6-MOS
<FISCAL-YEAR-END>                          DEC-31-1997             DEC-31-1998
<PERIOD-END>                               DEC-31-1997             JUN-28-1998
<CASH>                                           7,218                   5,088
<SECURITIES>                                         0                       0
<RECEIVABLES>                                   70,930                  82,140
<ALLOWANCES>                                     1,635                   1,612
<INVENTORY>                                     32,236                  30,789
<CURRENT-ASSETS>                               117,947                 127,986
<PP&E>                                         587,910                 625,286
<DEPRECIATION>                                 327,614                 344,716
<TOTAL-ASSETS>                                 385,491                 439,558
<CURRENT-LIABILITIES>                          113,132                 111,727
<BONDS>                                              0                       0
<PREFERRED-MANDATORY>                                0                       0
<PREFERRED>                                          0                       0
<COMMON>                                             0                       0
<OTHER-SE>                                         337               (331,863)
<TOTAL-LIABILITY-AND-EQUITY>                   385,491                 439,558
<SALES>                                        521,707                 279,471
<TOTAL-REVENUES>                               521,707                 279,471
<CGS>                                          437,301                 223,002
<TOTAL-COSTS>                                  437,301                 223,002
<OTHER-EXPENSES>                                58,653                  44,166
<LOSS-PROVISION>                                     0                       0
<INTEREST-EXPENSE>                              14,940                  25,666
<INCOME-PRETAX>                                 10,813                (13,363)
<INCOME-TAX>                                       600                       8
<INCOME-CONTINUING>                             10,213                (13,371)
<DISCONTINUED>                                       0                       0
<EXTRAORDINARY>                                      0                     675
<CHANGES>                                            0                       0
<NET-INCOME>                                    10,213                (14,046)
<EPS-PRIMARY>                                        0                       0
<EPS-DILUTED>                                        0                       0