<ARTICLE> 5 <PERIOD-TYPE> 6-MOS <FISCAL-YEAR-END> DEC-31-1995 <PERIOD-END> JUN-30-1995 <CASH> 145404 <SECURITIES> 29290 <RECEIVABLES> 76025 <ALLOWANCES> 0 <INVENTORY> 0 <CURRENT-ASSETS> 266214 <PP&E> 218799 <DEPRECIATION> 122106 <TOTAL-ASSETS> 422283 <CURRENT-LIABILITIES> 92749 <BONDS> 0 <COMMON> 265582 <PREFERRED-MANDATORY> 0 <PREFERRED> 0 <OTHER-SE> 9093 <TOTAL-LIABILITY-AND-EQUITY> 422283 <SALES> 179492 <TOTAL-REVENUES> 179492 <CGS> 54820 <TOTAL-COSTS> 106201 <OTHER-EXPENSES> (2989) <LOSS-PROVISION> 0 <INTEREST-EXPENSE> 1129 <INCOME-PRETAX> 2988 <INCOME-TAX> 3030 <INCOME-CONTINUING> 18430 <DISCONTINUED> 0 <EXTRAORDINARY> 0 <CHANGES> 0 <NET-INCOME> 18430 <EPS-PRIMARY> .34 <EPS-DILUTED> .34