<ARTICLE> 5 <PERIOD-TYPE> 6-MOS <FISCAL-YEAR-END> DEC-31-2000 <PERIOD-START> JAN-01-2000 <PERIOD-END> JUN-30-2000 <CASH> 0 <SECURITIES> 0 <RECEIVABLES> 61,972,210 <ALLOWANCES> 1,381,000 <INVENTORY> 37,063,615 <CURRENT-ASSETS> 115,755,520 <PP&E> 687,751,931 <DEPRECIATION> 247,563,173 <TOTAL-ASSETS> 676,979,586 <CURRENT-LIABILITIES> 54,035,325 <BONDS> 0 <PREFERRED-MANDATORY> 0 <PREFERRED> 0 <COMMON> 7,253,332 <OTHER-SE> 136,267,499 <TOTAL-LIABILITY-AND-EQUITY> 676,979,586 <SALES> 115,273,434 <TOTAL-REVENUES> 146,832,582 <CGS> 73,077,132 <TOTAL-COSTS> 126,230,668 <OTHER-EXPENSES> 498,321 <LOSS-PROVISION> 0 <INTEREST-EXPENSE> 15,130,897 <INCOME-PRETAX> 5,415,581 <INCOME-TAX> 1,734,000 <INCOME-CONTINUING> 3,681,581 <DISCONTINUED> 0 <EXTRAORDINARY> 0 <CHANGES> 0 <NET-INCOME> 3,681,581 <EPS-BASIC> $0.74 <EPS-DILUTED> $0.74