<ARTICLE> 5
<RESTATED>
       
                             
<PERIOD-TYPE>                   9-MOS
<FISCAL-YEAR-END>                          DEC-31-1996
<PERIOD-END>                               SEP-30-1996
<CASH>                                       3,613,777
<SECURITIES>                                         0
<RECEIVABLES>                                8,810,440
<ALLOWANCES>                                         0
<INVENTORY>                                  2,024,049
<CURRENT-ASSETS>                            16,151,302
<PP&E>                                     117,689,733
<DEPRECIATION>                              35,683,756
<TOTAL-ASSETS>                             147,103,769
<CURRENT-LIABILITIES>                       12,966,610
<BONDS>                                     20,000,000
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                    43,355,988
<OTHER-SE>                                  45,825,513
<TOTAL-LIABILITY-AND-EQUITY>               147,103,769
<SALES>                                              0
<TOTAL-REVENUES>                            37,401,922
<CGS>                                                0
<TOTAL-COSTS>                               25,100,044
<OTHER-EXPENSES>                                     0
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                             880,013
<INCOME-PRETAX>                             11,627,254
<INCOME-TAX>                                 4,327,150
<INCOME-CONTINUING>                          6,930,055
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                 6,930,055
<EPS-PRIMARY>                                    0.534
<EPS-DILUTED>                                    0.531