<ARTICLE> 5 <MULTIPLIER> 1,000 <PERIOD-TYPE> 6-MOS <FISCAL-YEAR-END> DEC-31-1996 <PERIOD-END> JUN-30-1996 <CASH> 11 <SECURITIES> 0 <RECEIVABLES> 127,603 <ALLOWANCES> 825 <INVENTORY> 133,752 <CURRENT-ASSETS> 282,436 <PP&E> 1,676,413 <DEPRECIATION> 449,371 <TOTAL-ASSETS> 1,885,952 <CURRENT-LIABILITIES> 198,758 <BONDS> 364,261 <PREFERRED-MANDATORY> 6,900 <PREFERRED> 3,450 <COMMON> 44,024 <OTHER-SE> 1,017,838 <TOTAL-LIABILITY-AND-EQUITY> 1,885,952 <SALES> 1,249,531 <TOTAL-REVENUES> 1,249,531 <CGS> 1,202,892 <TOTAL-COSTS> 1,202,892 <OTHER-EXPENSES> 0 <LOSS-PROVISION> 0 <INTEREST-EXPENSE> 19,982 <INCOME-PRETAX> 29,923 <INCOME-TAX> 8,796 <INCOME-CONTINUING> 21,127 <DISCONTINUED> 19,628 <EXTRAORDINARY> 0 <CHANGES> 0 <NET-INCOME> 40,755 <EPS-PRIMARY> .80 <EPS-DILUTED> 0