<TABLE> <S> <C>

<ARTICLE> 5
<RESTATED> 
       
<S>                             <C>                     <C>                     <C>                     <C>
<PERIOD-TYPE>                   3-MOS                   6-MOS                   9-MOS                   12-MOS
<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>                                      10,700,000             253,400,000             135,700,000              73,300,000
<SECURITIES>                                         0                       0                       0                       0
<RECEIVABLES>                              168,400,000             116,300,000             137,100,000             111,800,000
<ALLOWANCES>                                 6,000,000               5,400,000               4,800,000               5,900,000
<INVENTORY>                                133,400,000              99,900,000              99,500,000              98,800,000
<CURRENT-ASSETS>                           341,300,000             494,900,000             389,300,000             308,300,000
<PP&E>                                   1,632,500,000             832,900,000             832,100,000             858,400,000
<DEPRECIATION>                             783,000,000             332,400,000           (362,100,000)             350,100,000
<TOTAL-ASSETS>                           1,291,600,000           1,077,900,000             990,800,000             913,000,000
<CURRENT-LIABILITIES>                      154,900,000             238,100,000             158,900,000             133,400,000
<BONDS>                                    518,700,000             265,500,000             266,000,000             264,300,000
<COMMON>                                    23,400,000              23,600,000              23,100,000              21,300,000
<PREFERRED-MANDATORY>                                0                       0                       0                       0
<PREFERRED>                                          0                       0                       0                       0
<OTHER-SE>                                 437,800,000             469,900,000             459,400,000             400,700,000
<TOTAL-LIABILITY-AND-EQUITY>             1,291,600,000           1,077,900,000             990,800,000             913,000,000
<SALES>                                    294,500,000             558,800,000             792,500,000           1,021,000,000
<TOTAL-REVENUES>                           297,300,000             650,100,000             878,900,000           1,117,200,000
<CGS>                                      250,300,000             424,900,000             590,500,000             749,800,000
<TOTAL-COSTS>                              290,300,000             572,800,000             789,000,000           1,001,500,000
<OTHER-EXPENSES>                             1,800,000               1,700,000               2,800,000               5,900,000
<LOSS-PROVISION>                             1,300,000                 200,000               (600,000)               2,600,000
<INTEREST-EXPENSE>                           9,500,000              16,300,000              18,500,000              22,000,000
<INCOME-PRETAX>                            (5,600,000)              59,100,000              73,600,000              85,200,000
<INCOME-TAX>                               (2,100,000)              25,500,000              30,300,000              34,300,000
<INCOME-CONTINUING>                        (3,500,000)              33,600,000              43,300,000              50,900,000
<DISCONTINUED>                                       0                       0                       0                       0
<EXTRAORDINARY>                                      0               2,300,000               2,300,000             (2,300,000)
<CHANGES>                                            0                       0                       0                       0
<NET-INCOME>                               (3,500,000)              31,300,000              41,000,000              48,600,000
<EPS-PRIMARY>                                    (.15)                    1.33                    1.74                    2.10
<EPS-DILUTED>                                    (.15)                    1.31                    1.72                    2.08
        

</TABLE>