<ARTICLE>                     5
<RESTATED>

       

                                                             
<PERIOD-TYPE>                     12-MOS               12-MOS          
<FISCAL-YEAR-END>                 DEC-31-1995          DEC-31-1996   
<PERIOD-START>                    JAN-01-1995          JAN-01-1996   
<PERIOD-END>                      DEC-31-1995          DEC-31-1996              
<CASH>                             3,266,388            2,986,123     
<SECURITIES>                               0                    0
<RECEIVABLES>                      1,335,645            2,258,936  
<ALLOWANCES>                               0                    0    
<INVENTORY>                          166,955              229,298
<CURRENT-ASSETS>                   4,836,459            5,607,982    
<PP&E>                            10,073,215           17,585,571    
<DEPRECIATION>                     2,194,164            3,237,684     
<TOTAL-ASSETS>                    16,878,182           23,689,421     
<CURRENT-LIABILITIES>              1,100,626            4,304,909     
<BONDS>                                    0                    0     
<PREFERRED-MANDATORY>                      0                    0      
<PREFERRED>                                0                    0   
<COMMON>                             113,948              118,143   
<OTHER-SE>                                 0                    0   
<TOTAL-LIABILITY-AND-EQUITY>      16,878,182           23,689,421   
<SALES>                            7,867,393           12,357,165   
<TOTAL-REVENUES>                   7,867,393           12,357,165   
<CGS>                              2,645,730            3,735,669   
<TOTAL-COSTS>                      5,059,530            6,941,284   
<OTHER-EXPENSES>                      26,995                6,311   
<LOSS-PROVISION>                           0                    0   
<INTEREST-EXPENSE>                    51,967               84,517   
<INCOME-PRETAX>                    2,872,325            5,452,006 
<INCOME-TAX>                       1,100,000            2,067,500 
<INCOME-CONTINUING>                1,772,325            3,384,506 
<DISCONTINUED>                             0                    0 
<EXTRAORDINARY>                            0                    0 
<CHANGES>                                  0                    0 
<NET-INCOME>                       1,772,325            3,384,506 
<EPS-PRIMARY>                            .16                  .29
<EPS-DILUTED>                            .15                  .28