<ARTICLE> 5 <PERIOD-TYPE> 12-MOS <FISCAL-YEAR-END> DEC-31-1997 <PERIOD-START> JAN-01-1997 <PERIOD-END> DEC-31-1997 <CASH> 757,135 <SECURITIES> 0 <RECEIVABLES> 13,116,738 <ALLOWANCES> 869,750 <INVENTORY> 677,053 <CURRENT-ASSETS> 14,960,601 <PP&E> 114,126,277 <DEPRECIATION> 53,142,364 <TOTAL-ASSETS> 108,258,626 <CURRENT-LIABILITIES> 13,266,607 <BONDS> 49,441,564 <PREFERRED-MANDATORY> 0 <PREFERRED> 0 <COMMON> 24,524,975 <OTHER-SE> 15,323,480 <TOTAL-LIABILITY-AND-EQUITY> 108,258,626 <SALES> 116,302,307 <TOTAL-REVENUES> 116,302,607 <CGS> 72,421,957 <TOTAL-COSTS> 104,439,422 <OTHER-EXPENSES> 0 <LOSS-PROVISION> 0 <INTEREST-EXPENSE> 2,830,571 <INCOME-PRETAX> 9,751,905 <INCOME-TAX> 7,050,000 <INCOME-CONTINUING> 2,701,905 <DISCONTINUED> 0 <EXTRAORDINARY> 0 <CHANGES> 0 <NET-INCOME> 2,701,905 <EPS-PRIMARY> 0.56<F1> <EPS-DILUTED> 0.54 <F1> <FN> EPS-BASIC </FN>