<ARTICLE> 5 <MULTIPLIER> 1,000 <PERIOD-TYPE> 6-MOS <FISCAL-YEAR-END> DEC-31-1995 <PERIOD-START> JAN-01-1995 <PERIOD-END> JUN-30-1995 <CASH> 22,421 <SECURITIES> 37,129 <RECEIVABLES> 150,928 <ALLOWANCES> 0 <INVENTORY> 96,930 <CURRENT-ASSETS> 418,758 <PP&E> 906,677 <DEPRECIATION> 423,352 <TOTAL-ASSETS> 1,317,949 <CURRENT-LIABILITIES> 344,105 <BONDS> 113,897 <COMMON> 82,432 <PREFERRED-MANDATORY> 0 <PREFERRED> 0 <OTHER-SE> 737,869 <TOTAL-LIABILITY-AND-EQUITY> 1,317,949 <SALES> 908,107 <TOTAL-REVENUES> 908,107 <CGS> 412,757 <TOTAL-COSTS> 799,463 <OTHER-EXPENSES> 0 <LOSS-PROVISION> 0 <INTEREST-EXPENSE> 6,453 <INCOME-PRETAX> 110,181 <INCOME-TAX> 46,610 <INCOME-CONTINUING> 0 <DISCONTINUED> 0 <EXTRAORDINARY> 0 <CHANGES> 0 <NET-INCOME> 63,571 <EPS-PRIMARY> .77 <EPS-DILUTED> .77