<TABLE> <S> <C>
<ARTICLE> 5
<LEGEND>
THE SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED
FROM THE BALANCE SHEET AS OF JUNE 30,2000, AND
THE RELATED STATEMENTS OF INCOME FOR THE THREE MONTHS AND SIX
MONTHS ENDED JUNE 30,2000, AND THE NOTES RELATED THERETO AND
IS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL
STATEMENTS.
</LEGEND>
<S> <C>
<PERIOD-TYPE> 3-MOS
<FISCAL-YEAR-END> DEC-31-2000
<PERIOD-START> APR-01-2000
<PERIOD-END> JUN-30-2000
<CASH> 437,072
<SECURITIES> 0
<RECEIVABLES> 96,671,822
<ALLOWANCES> 3,008,076
<INVENTORY> 0
<CURRENT-ASSETS> 116,290,397
<PP&E> 678,508,524
<DEPRECIATION> 181,848,966
<TOTAL-ASSETS> 628,493,695
<CURRENT-LIABILITIES> 100,837,337
<BONDS> 240,582,817
<COMMON> 110,315
0
0
<OTHER-SE> 218,967,082
<TOTAL-LIABILITY-AND-EQUITY> 628,493,695
<SALES> 0
<TOTAL-REVENUES> 180,002,316
<CGS> 0
<TOTAL-COSTS> 165,888,067
<OTHER-EXPENSES> 0
<LOSS-PROVISION> 0
<INTEREST-EXPENSE> 5,156,438
<INCOME-PRETAX> 9,573,759
<INCOME-TAX> 3,397,264
<INCOME-CONTINUING> 6,176,495
<DISCONTINUED> 0
<EXTRAORDINARY> 0
<CHANGES> 0
<NET-INCOME> 6,176,495
<EPS-BASIC> .54
<EPS-DILUTED> .53
</TABLE>