<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>
<CURRENCY> U.S. DOLLARS

                             
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          DEC-31-2000
<PERIOD-START>                             JAN-01-2000
<PERIOD-END>                               JUN-30-2000
<EXCHANGE-RATE>                                      1
<CASH>                                       1,913,084
<SECURITIES>                                         0
<RECEIVABLES>                               34,987,928
<ALLOWANCES>                                   822,590
<INVENTORY>                                    744,537
<CURRENT-ASSETS>                            45,554,695
<PP&E>                                     177,227,527
<DEPRECIATION>                            (38,041,694)
<TOTAL-ASSETS>                             200,582,367
<CURRENT-LIABILITIES>                       60,513,065
<BONDS>                                              0
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                       151,919
<OTHER-SE>                                  94,763,091
<TOTAL-LIABILITY-AND-EQUITY>               200,582,367
<SALES>                                              0
<TOTAL-REVENUES>                            95,244,826
<CGS>                                                0
<TOTAL-COSTS>                               80,299,183
<OTHER-EXPENSES>                                     0
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                           1,297,128
<INCOME-PRETAX>                             13,648,515
<INCOME-TAX>                                 5,180,000
<INCOME-CONTINUING>                          8,468,515
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                 8,468,515
<EPS-BASIC>                                        .58
<EPS-DILUTED>                                      .57