<ARTICLE> 5 <PERIOD-TYPE> 3-MOS 6-MOS 9-MOS <FISCAL-YEAR-END> DEC-31-1997 DEC-31-1997 DEC-31-1997 <PERIOD-START> JAN-01-1997 JAN-01-1997 JAN-01-1997 <PERIOD-END> MAR-31-1997 JUN-30-1997 SEP-30-1997 <CASH> 3,306,140 36,342,099 35,428,093 <SECURITIES> 0 0 0 <RECEIVABLES> 2,750,667 4,428,877 6,217,953 <ALLOWANCES> 6,000 44,289 62,176 <INVENTORY> 312,793 413,228 468,680 <CURRENT-ASSETS> 6,563,720 41,335,348 268,857 <PP&E> 24,209,043 25,286,457 28,329,551 <DEPRECIATION> 3,583,918 4,007,183 4,405,241 <TOTAL-ASSETS> 27,462,534 62,697,306 66,326,189 <CURRENT-LIABILITIES> 6,622,477 2,121,119 1,790,770 <BONDS> 0 0 0 <PREFERRED-MANDATORY> 0 0 0 <PREFERRED> 0 0 0 <COMMON> 118,435 143,994 145,037 <OTHER-SE> 0 0 0 <TOTAL-LIABILITY-AND-EQUITY> 27,462,534 62,697,306 66,326,189 <SALES> 4,107,358 10,279,857 17,297,364 <TOTAL-REVENUES> 4,107,358 10,279,857 17,297,364 <CGS> 1,145,361 2,704,701 4,284,908 <TOTAL-COSTS> 2,234,854 5,315,284 8,086,126 <OTHER-EXPENSES> 16,197 344,017 843,449 <LOSS-PROVISION> 0 0 0 <INTEREST-EXPENSE> 6,629 14,621 18,515 <INCOME-PRETAX> 1,788,701 5,308,590 10,054,687 <INCOME-TAX> 679,707 2,017,264 3,820,781 <INCOME-CONTINUING> 1,108,994 3,291,326 6,233,906 <DISCONTINUED> 0 0 0 <EXTRAORDINARY> 0 0 0 <CHANGES> 0 0 0 <NET-INCOME> 1,108,994 3,291,326 6,233,906 <EPS-PRIMARY> .09 .24 .44 <EPS-DILUTED> .09 .24 .44