<ARTICLE> 5
<LEGEND>
THIS RESTATED FINANCIAL DATA SCHEDULE FOR 1996 CONFORMS WITH SFAS NO. 128. THIS
SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE CONSOLIDATED
STATEMENT OF EARNINGS FOR THE TWELVE MONTHS ENDED DECEMBER 31, 1996, AND THE
CONSOLIDATED BALANCE SHEET AS OF DECEMBER 31, 1996 AND IS QUALIFIED IN ITS
ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<RESTATED>
<MULTIPLIER> 1,000
       
                             
<PERIOD-TYPE>                   YEAR
<FISCAL-YEAR-END>                          DEC-31-1996
<PERIOD-END>                               DEC-31-1996
<CASH>                                          50,816
<SECURITIES>                                         0
<RECEIVABLES>                                  184,970
<ALLOWANCES>                                     8,106
<INVENTORY>                                    128,578
<CURRENT-ASSETS>                               394,045
<PP&E>                                       2,002,164
<DEPRECIATION>                               1,237,674
<TOTAL-ASSETS>                               1,320,645
<CURRENT-LIABILITIES>                          194,654
<BONDS>                                         85,535
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                        46,573
<OTHER-SE>                                     837,091
<TOTAL-LIABILITY-AND-EQUITY>                 1,320,645
<SALES>                                      1,568,945
<TOTAL-REVENUES>                             1,568,945
<CGS>                                        1,115,442
<TOTAL-COSTS>                                1,115,442
<OTHER-EXPENSES>                                 3,887
<LOSS-PROVISION>                                   652
<INTEREST-EXPENSE>                               8,636
<INCOME-PRETAX>                                285,580
<INCOME-TAX>                                    96,985
<INCOME-CONTINUING>                            188,595
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                   188,595
<EPS-PRIMARY>                                     5.43
<EPS-DILUTED>                                     5.36