<ARTICLE>                           5
<LEGEND>
                                    This  schedule  contains  summary  financial
                                    information   extracted  from   Consolidated
                                    Financial  Statements  and Notes included in
                                    this  Form  10-K  and  is  qualified  in its
                                    entirety  by  reference  to  such  financial
                                    statements.
</LEGEND>
<MULTIPLIER>                        1,000
       
                               
<PERIOD-TYPE>                       12-MOS
<FISCAL-YEAR-END>                   DEC-31-1998
<PERIOD-START>                      JAN-01-1998
<PERIOD-END>                        DEC-31-1998
<CASH>                                  31,700
<SECURITIES>                            94,800
<RECEIVABLES>                          134,700
<ALLOWANCES>                            (1,500)
<INVENTORY>                            205,700
<CURRENT-ASSETS>                       612,100
<PP&E>                               2,086,500
<DEPRECIATION>                      (1,173,200)
<TOTAL-ASSETS>                       2,519,100
<CURRENT-LIABILITIES>                  366,600
<BONDS>                                459,800
<PREFERRED-MANDATORY>                        0
<PREFERRED>                                  0
<COMMON>                               117,000
<OTHER-SE>                           1,105,800
<TOTAL-LIABILITY-AND-EQUITY>         2,519,100
<SALES>                              2,297,100
<TOTAL-REVENUES>                     2,297,100
<CGS>                                1,853,800
<TOTAL-COSTS>                        2,270,300
<OTHER-EXPENSES>                             0
<LOSS-PROVISION>                             0
<INTEREST-EXPENSE>                      37,500
<INCOME-PRETAX>                         14,000
<INCOME-TAX>                            15,800
<INCOME-CONTINUING>                      2,000
<DISCONTINUED>                               0
<EXTRAORDINARY>                              0
<CHANGES>                                    0
<NET-INCOME>                             2,000
<EPS-PRIMARY>                              .02
<EPS-DILUTED>                              .02