<ARTICLE> 5 <MULTIPLIER> 1,000 <PERIOD-TYPE> 3-MOS <FISCAL-YEAR-END> DEC-31-1997 <PERIOD-END> MAR-31-1997 <CASH> 11,088 <SECURITIES> 0 <RECEIVABLES> 97,965 <ALLOWANCES> 2,477 <INVENTORY> 12,455 <CURRENT-ASSETS> 141,385 <PP&E> 241,349 <DEPRECIATION> 126,224 <TOTAL-ASSETS> 583,673 <CURRENT-LIABILITIES> 87,763 <BONDS> 208,440 <PREFERRED-MANDATORY> 0 <PREFERRED> 0 <COMMON> 37,724 <OTHER-SE> 224,380 <TOTAL-LIABILITY-AND-EQUITY> 583,673 <SALES> 174,835 <TOTAL-REVENUES> 174,835 <CGS> 127,545 <TOTAL-COSTS> 153,573 <OTHER-EXPENSES> 3,478 <LOSS-PROVISION> 0 <INTEREST-EXPENSE> 3,293 <INCOME-PRETAX> 17,784 <INCOME-TAX> 7,767 <INCOME-CONTINUING> 10,017 <DISCONTINUED> 0 <EXTRAORDINARY> 0 <CHANGES> 0 <NET-INCOME> 10,017 <EPS-PRIMARY> .26 <EPS-DILUTED> .26