<ARTICLE> 5 <MULTIPLIER> 1 <CURRENCY> U.S. Dollars <PERIOD-TYPE> 6-MOS <FISCAL-YEAR-END> JUN-30-2000 <PERIOD-START> JUL-01-1999 <PERIOD-END> DEC-31-1999 <EXCHANGE-RATE> 1 <CASH> 12,256,557 <SECURITIES> 495,280 <RECEIVABLES> 3,638,318 <ALLOWANCES> 0 <INVENTORY> 351,512 <CURRENT-ASSETS> 16,981,728 <PP&E> 48,891,091 <DEPRECIATION> 24,402,107 <TOTAL-ASSETS> 44,429,881 <CURRENT-LIABILITIES> 2,977,038 <BONDS> 0 <PREFERRED-MANDATORY> 0 <PREFERRED> 0 <COMMON> 251,082 <OTHER-SE> 19,683,251 <TOTAL-LIABILITY-AND-EQUITY> 44,429,881 <SALES> 7,413,796 <TOTAL-REVENUES> 8,251,816 <CGS> 0 <TOTAL-COSTS> 7,139,669 <OTHER-EXPENSES> 942,335 <LOSS-PROVISION> 0 <INTEREST-EXPENSE> 0 <INCOME-PRETAX> 169,812 <INCOME-TAX> (302,953) <INCOME-CONTINUING> 472,765 <DISCONTINUED> 0 <EXTRAORDINARY> 0 <CHANGES> 0 <NET-INCOME> 472,765 <EPS-BASIC> .02 <EPS-DILUTED> .02