<ARTICLE> 5 <MULTIPLIER> 1,000 <PERIOD-TYPE> 3-MOS <FISCAL-YEAR-END> DEC-31-1997 <PERIOD-START> JUN-30-1997 <PERIOD-END> SEP-30-1997 <CASH> 109,227 <SECURITIES> 11,541 <RECEIVABLES> 159,568 <ALLOWANCES> 0 <INVENTORY> 58,292 <CURRENT-ASSETS> 475,196 <PP&E> 893,172 <DEPRECIATION> 478,299 <TOTAL-ASSETS> 1,104,840 <CURRENT-LIABILITIES> 382,339 <BONDS> 0 <PREFERRED-MANDATORY> 0 <PREFERRED> 0 <COMMON> 81,171 <OTHER-SE> 520,902 <TOTAL-LIABILITY-AND-EQUITY> 1,104,840 <SALES> 443,041 <TOTAL-REVENUES> 0 <CGS> 200,022 <TOTAL-COSTS> 500,880 <OTHER-EXPENSES> 44,399 <LOSS-PROVISION> (36,875) <INTEREST-EXPENSE> 2,152 <INCOME-PRETAX> (104,390) <INCOME-TAX> (36,875) <INCOME-CONTINUING> 0 <DISCONTINUED> 0 <EXTRAORDINARY> 0 <CHANGES> 0 <NET-INCOME> (67,515) <EPS-PRIMARY> (.82) <EPS-DILUTED> 0