<ARTICLE>                     5
<LEGEND>
The schedule contains summary financial information extracted from the Company's
consolidated  financial statements and is qualified in its entirety by reference
to such financial statements.
</LEGEND>
<RESTATED>
<MULTIPLIER>                  1
<CURRENCY>                    U.S. Dollars
       
                             
<PERIOD-TYPE>                   9-MOS
<FISCAL-YEAR-END>                              DEC-31-1997
<PERIOD-START>                                 JAN-01-1997
<PERIOD-END>                                   SEP-30-1997
<EXCHANGE-RATE>                                          1
<CASH>                                              94,482 
<SECURITIES>                                             0 
<RECEIVABLES>                                   11,816,445 
<ALLOWANCES>                                       413,323 
<INVENTORY>                                        561,059 
<CURRENT-ASSETS>                                14,932,008 
<PP&E>                                          78,362,979 
<DEPRECIATION>                                 (17,625,697)
<TOTAL-ASSETS>                                  76,968,399 
<CURRENT-LIABILITIES>                           12,181,215 
<BONDS>                                                  0 
<PREFERRED-MANDATORY>                                    0 
<PREFERRED>                                              0 
<COMMON>                                            99,199 
<OTHER-SE>                                      53,456,365 
<TOTAL-LIABILITY-AND-EQUITY>                    76,968,399 
<SALES>                                                  0 
<TOTAL-REVENUES>                                71,245,395 
<CGS>                                                    0 
<TOTAL-COSTS>                                   58,678,742 
<OTHER-EXPENSES>                                         0 
<LOSS-PROVISION>                                         0 
<INTEREST-EXPENSE>                                   8,828 
<INCOME-PRETAX>                                 12,575,481 
<INCOME-TAX>                                     5,190,000 
<INCOME-CONTINUING>                              7,385,481 
<DISCONTINUED>                                           0 
<EXTRAORDINARY>                                          0 
<CHANGES>                                                0 
<NET-INCOME>                                     7,385,481 
<EPS-PRIMARY>                                          .74
<EPS-DILUTED>                                          .73