<TABLE> <S> <C>
<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
<S> <C>
<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
0
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
</TABLE>