<ARTICLE> 5 <MULTIPLIER> 1,000 <PERIOD-TYPE> 3-MOS <FISCAL-YEAR-END> DEC-31-1999 <PERIOD-START> JAN-01-1999 <PERIOD-END> MAR-31-1999 <CASH> 10,345 <SECURITIES> 5,032 <RECEIVABLES> 31,551 <ALLOWANCES> 7,742 <INVENTORY> 17,249 <CURRENT-ASSETS> 70,063 <PP&E> 220,672 <DEPRECIATION> 152,357 <TOTAL-ASSETS> 179,137 <CURRENT-LIABILITIES> 32,858 <BONDS> 390 <PREFERRED-MANDATORY> 0 <PREFERRED> 0 <COMMON> 2,855 <OTHER-SE> 137,933 <TOTAL-LIABILITY-AND-EQUITY> 179,137 <SALES> 0 <TOTAL-REVENUES> 54,935 <CGS> 25,911 <TOTAL-COSTS> 49,274 <OTHER-EXPENSES> 4,044 <LOSS-PROVISION> 0 <INTEREST-EXPENSE> 0 <INCOME-PRETAX> 1,983 <INCOME-TAX> 754 <INCOME-CONTINUING> 1,229 <DISCONTINUED> 0 <EXTRAORDINARY> 0 <CHANGES> 0 <NET-INCOME> 1,229 <EPS-PRIMARY> 0.04 <EPS-DILUTED> 0.04