<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE
CONDENSED CONSOLIDATED BALANCE SHEET AS OF JUNE 30, 1997, AND THE RELATED
CONDENSED CONSOLIDATED STATEMENT OF EARNINGS FOR THE THREE AND SIX MONTHS THEN 
ENDED, AND IS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH QUARTERLY REPORT 
ON FORM 10-Q FOR THE QUARTERLY PERIOD ENDED JUNE 30, 1997.
</LEGEND>
<RESTATED> 
<MULTIPLIER> 1,000
       
                             
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          DEC-31-1997
<PERIOD-START>                             JAN-01-1997
<PERIOD-END>                               JUN-30-1997
<CASH>                                           8,484
<SECURITIES>                                         0
<RECEIVABLES>                                  168,861
<ALLOWANCES>                                     4,849
<INVENTORY>                                    132,850
<CURRENT-ASSETS>                               326,945
<PP&E>                                       1,190,709
<DEPRECIATION>                                 601,411
<TOTAL-ASSETS>                               1,121,176
<CURRENT-LIABILITIES>                          204,347
<BONDS>                                        275,935
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                           461
<OTHER-SE>                                     508,739
<TOTAL-LIABILITY-AND-EQUITY>                 1,121,176
<SALES>                                        390,353
<TOTAL-REVENUES>                               390,353
<CGS>                                          294,722
<TOTAL-COSTS>                                  327,615
<OTHER-EXPENSES>                                (5,546)
<LOSS-PROVISION>                                 1,899
<INTEREST-EXPENSE>                               5,765
<INCOME-PRETAX>                                 60,620
<INCOME-TAX>                                    21,344
<INCOME-CONTINUING>                             39,276
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                    39,276
<EPS-PRIMARY>                                     0.85
<EPS-DILUTED>                                     0.85<F1>
<FN>
<F1>Financial Data Schedule restated to reflect adoption of SFAS No. 128. 
Earnings per share amounts have been restated, where appropriate, to comply 
with the SFAS No. 128.
</FN>