<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-31-1995             DEC-31-1995             DEC-31-1995             DEC-31-1995
<PERIOD-END>                               MAR-31-1995             JUN-30-1995             SEP-30-1995             DEC-31-1995
<CASH>                                      32,500,000                 600,000                 300,000               5,200,000
<SECURITIES>                                         0                       0                       0                       0
<RECEIVABLES>                              134,400,000             151,700,000             161,100,000             140,400,000
<ALLOWANCES>                                 4,100,000               4,400,000               4,200,000               3,200,000
<INVENTORY>                                103,600,000             111,700,000             119,700,000             112,500,000
<CURRENT-ASSETS>                           287,700,000             283,400,000             300,600,000             281,600,000
<PP&E>                                   1,262,400,000           1,305,500,000           1,357,100,000           1,456,400,000
<DEPRECIATION>                             641,400,000             659,500,000             677,900,000             675,500,000
<TOTAL-ASSETS>                           1,044,600,000           1,058,800,000           1,107,700,000           1,146,300,000
<CURRENT-LIABILITIES>                      138,800,000             138,800,000             143,900,000             139,300,000
<BONDS>                                    364,000,000             359,100,000             370,700,000             393,600,000
<COMMON>                                    23,800,000              23,800,000              23,900,000              23,800,000
<PREFERRED-MANDATORY>                                0                       0                       0                       0
<PREFERRED>                                          0                       0                       0                       0
<OTHER-SE>                                 386,100,000             401,000,000             427,100,000             444,500,000
<TOTAL-LIABILITY-AND-EQUITY>             1,044,600,000           1,058,800,000           1,107,700,000           1,146,300,000
<SALES>                                    291,100,000             606,200,000             937,000,000           1,233,700,000
<TOTAL-REVENUES>                           294,200,000             612,000,000             947,000,000           1,249,600,000
<CGS>                                      201,700,000             426,900,000             656,000,000             867,900,000
<TOTAL-COSTS>                              252,500,000             528,800,000             810,000,000           1,069,200,000
<OTHER-EXPENSES>                               700,000               4,400,000               5,400,000               4,800,000
<LOSS-PROVISION>                             4,100,000                 300,000                       0               3,200,000
<INTEREST-EXPENSE>                           8,000,000            (16,100,000)              23,500,000              30,800,000
<INCOME-PRETAX>                             33,000,000              62,400,000             108,100,000             141,600,000
<INCOME-TAX>                                12,200,000              23,100,000              38,900,000              48,200,000
<INCOME-CONTINUING>                         20,800,000              39,300,000              69,200,000              93,400,000
<DISCONTINUED>                                       0                       0                       0                       0
<EXTRAORDINARY>                                      0                       0                       0                       0
<CHANGES>                                            0                       0                       0                       0
<NET-INCOME>                                20,800,000              39,300,000              69,200,000              93,400,000
<EPS-PRIMARY>                                      .87                    1.65                    2.90                    3.92
<EPS-DILUTED>                                      .87                    1.64                    2.88                    3.88
        

</TABLE>