<ARTICLE> 5 <LEGEND> This schedule contains summary financial information extracted from Form 10-Q for the period ended September 30, 1997 and is qualified in its entirety by reference to such financial statements. </LEGEND> <MULTIPLIER> 1,000 <PERIOD-TYPE> 9-MOS <FISCAL-YEAR-END> DEC-31-1997 <PERIOD-START> JAN-01-1997 <PERIOD-END> SEP-30-1997 <CASH> $29,646 <SECURITIES> 0 <RECEIVABLES> 126,859 <ALLOWANCES> 4,898 <INVENTORY> 40,009 <CURRENT-ASSETS> 208,385 <PP&E> 491,201 <DEPRECIATION> 194,284 <TOTAL-ASSETS> 558,981 <CURRENT-LIABILITIES> 172,637 <BONDS> 234,218 <PREFERRED-MANDATORY> 0 <PREFERRED> 0 <COMMON> 223 <OTHER-SE> (105,489) <TOTAL-LIABILITY-AND-EQUITY> 558,981 <SALES> 484,365 <TOTAL-REVENUES> 484,365 <CGS> 332,126 <TOTAL-COSTS> 332,126 <OTHER-EXPENSES> 0 <LOSS-PROVISION> 11 <INTEREST-EXPENSE> 16,061 <INCOME-PRETAX> 72,347 <INCOME-TAX> 28,273 <INCOME-CONTINUING> 44,074 <DISCONTINUED> 0 <EXTRAORDINARY> 0 <CHANGES> 0 <NET-INCOME> 44,074 <EPS-PRIMARY> 1.95 <EPS-DILUTED> 1.93