
<TABLE> <S> <C>

<PAGE>
<ARTICLE> 5
<MULTIPLIER> 1,000
       
<S>                             <C>
<PERIOD-TYPE>                   YEAR
<FISCAL-YEAR-END>                          DEC-31-1998
<PERIOD-START>                             JAN-01-1998
<PERIOD-END>                               DEC-31-1998
<CASH>                                           1,244
<SECURITIES>                                         0
<RECEIVABLES>                                   72,633
<ALLOWANCES>                                     2,400
<INVENTORY>                                     72,301
<CURRENT-ASSETS>                               153,832
<PP&E>                                         683,495
<DEPRECIATION>                                 282,346
<TOTAL-ASSETS>                                 669,761
<CURRENT-LIABILITIES>                           88,756
<BONDS>                                        459,475
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                           309
<OTHER-SE>                                      28,572
<TOTAL-LIABILITY-AND-EQUITY>                   669,761
<SALES>                                        875,018
<TOTAL-REVENUES>                               875,018
<CGS>                                          702,365
<TOTAL-COSTS>                                  702,365
<OTHER-EXPENSES>                                 9,500 <F1>
<LOSS-PROVISION>                                     0  
<INTEREST-EXPENSE>                              30,818
<INCOME-PRETAX>                                 89,685
<INCOME-TAX>                                    33,406
<INCOME-CONTINUING>                             56,279
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                    56,279
<EPS-PRIMARY>                                     1.79
<EPS-DILUTED>                                     1.77
<FN>
<F1> Loss on interest rate hedge agreement
</FN>
        

</TABLE>
