<ARTICLE> 5 <MULTIPLIER> 1 <CURRENCY> U.S. DOLLARS <PERIOD-TYPE> 6-MOS <FISCAL-YEAR-END> DEC-31-1998 <PERIOD-START> JAN-01-1998 <PERIOD-END> JUN-30-1998 <EXCHANGE-RATE> 1 <CASH> 5,463,000 <SECURITIES> 0 <RECEIVABLES> 3,823,000 <ALLOWANCES> 1,737,000 <INVENTORY> 0 <CURRENT-ASSETS> 8,392,000 <PP&E> 21,292,000 <DEPRECIATION> 10,816,000 <TOTAL-ASSETS> 19,064,000 <CURRENT-LIABILITIES> 6,282,000 <BONDS> 0 <PREFERRED-MANDATORY> 2,000 <PREFERRED> 0 <COMMON> 134,000 <OTHER-SE> 9,521,000 <TOTAL-LIABILITY-AND-EQUITY> 19,064,000 <SALES> 12,102,000 <TOTAL-REVENUES> 12,102,000 <CGS> 2,727,000 <TOTAL-COSTS> 12,996,000 <OTHER-EXPENSES> 0 <LOSS-PROVISION> 0 <INTEREST-EXPENSE> 145,000 <INCOME-PRETAX> 731,000 <INCOME-TAX> 0 <INCOME-CONTINUING> 731,000 <DISCONTINUED> 0 <EXTRAORDINARY> 0 <CHANGES> 0 <NET-INCOME> 731,000 <EPS-PRIMARY> 0.03 <EPS-DILUTED> 0.02