<TABLE> <S> <C>

<ARTICLE>               5
<RESTATED>
<MULTIPLIER>            1,000
       
<S>                                    <C>                <C>              <C>             <C>
<PERIOD-TYPE>                                3-MOS              6-MOS            9-MOS           12-MOS<F1>
<FISCAL-YEAR-END>                      DEC-31-1997        DEC-31-1997      DEC-31-1997      DEC-31-1997
<PERIOD-END>                           MAR-31-1997        JUN-30-1997      SEP-30-1997      DEC-31-1997
<CASH>                                      38,367             54,543           80,290           96,383
<SECURITIES>                                     0                  0                0                0
<RECEIVABLES>                              430,962            425,450          400,604          396,407
<ALLOWANCES>                                13,373             18,461           17,180           12,649
<INVENTORY>                                274,087            249,166          251,894          235,334
<CURRENT-ASSETS>                           837,281            810,598          823,641          789,639
<PP&E>                                   1,481,305          1,500,511        1,516,890        1,546,631
<DEPRECIATION>                             780,745            796,233          806,033          766,241
<TOTAL-ASSETS>                           2,318,235          2,289,039        2,251,400        2,297,652
<CURRENT-LIABILITIES>                      554,935            511,930          468,234          568,365
<BONDS>                                    693,742            688,635          687,011          645,101
<COMMON>                                   285,097            285,935          287,070          287,516
<PREFERRED-MANDATORY>                            0                  0                0                0
<PREFERRED>                                      6                  6                6                6
<OTHER-SE>                                 336,485            347,522          358,798          356,758
<TOTAL-LIABILITY-AND-EQUITY>             2,318,235          2,289,039        2,251,400        2,297,652
<SALES>                                    568,490          1,139,927        1,668,032        2,187,402
<TOTAL-REVENUES>                           568,490          1,139,927        1,668,032        2,187,402
<CGS>                                      432,165            855,867        1,249,026        1,629,405
<TOTAL-COSTS>                              432,165            855,867        1,249,026        1,629,405
<OTHER-EXPENSES>                                 0                  0                0                0
<LOSS-PROVISION>                               871              1,296            1,827            4,518
<INTEREST-EXPENSE>                          13,924             27,380           39,552           53,004
<INCOME-PRETAX>                             34,377             75,018          119,400          152,699
<INCOME-TAX>                                14,438             31,508           50,148           62,621
<INCOME-CONTINUING>                         19,939             43,510          159,097           90,078
<DISCONTINUED>                                   0              9,990            9,990            9,990
<EXTRAORDINARY>                                  0                  0                0                0
<CHANGES>                                        0                  0                0           (5,191)
<NET-INCOME>                                19,939             53,500           79,242           94,877
<EPS-PRIMARY>                                  .35                .94             1.39             1.66 
<EPS-DILUTED>                                  .35                .93             1.37             1.63
<FN>
<F1> 12-MOS IS NOT RESTATED
</FN>
        

</TABLE>