<ARTICLE> 5
<RESTATED>
<MULTIPLIER> 1,000
       
                             
<PERIOD-TYPE>                   YEAR
<FISCAL-YEAR-END>                          DEC-31-1996
<PERIOD-END>                               DEC-31-1996
<CASH>                                          22,796
<SECURITIES>                                         0
<RECEIVABLES>                                  129,528
<ALLOWANCES>                                     1,515
<INVENTORY>                                     74,488
<CURRENT-ASSETS>                               237,343
<PP&E>                                         573,353
<DEPRECIATION>                                 256,842
<TOTAL-ASSETS>                                 582,587
<CURRENT-LIABILITIES>                          137,868
<BONDS>                                         79,260
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                         4,402
<OTHER-SE>                                     299,663
<TOTAL-LIABILITY-AND-EQUITY>                   582,587
<SALES>                                        975,361
<TOTAL-REVENUES>                             1,039,778
<CGS>                                          854,311
<TOTAL-COSTS>                                  854,311
<OTHER-EXPENSES>                                41,459
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                              15,382
<INCOME-PRETAX>                                115,147
<INCOME-TAX>                                    38,347
<INCOME-CONTINUING>                             76,800
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                (2,290)
<CHANGES>                                            0
<NET-INCOME>                                    74,510
<EPS-PRIMARY>                                     2.87<F1>
<EPS-DILUTED>                                     2.81<F1>
<FN>
<F1>Earnings per share have been restated to comply with SFAS No. 128. Earnings
per share is after a net extraordinary loss on extinguishment of debt of $0.09
per basic and diluted share.
</FN>