<ARTICLE> 5
<LEGEND>
This schedule contains summary financial information extracted from this
form 10-Q for the three months ending March 31, 1998, and is qualified
in its entirety by reference to such financial statements.
</LEGEND>
       
                                                  
<PERIOD-TYPE>                   3-MOS                   3-MOS
<FISCAL-YEAR-END>                          DEC-31-1998             DEC-31-1997
<PERIOD-START>                             JAN-01-1998             JAN-01-1997
<PERIOD-END>                               MAR-31-1998             MAR-31-1997
<CASH>                                      59,379,969                       0
<SECURITIES>                                         0                       0
<RECEIVABLES>                                        0                       0
<ALLOWANCES>                                         0                       0
<INVENTORY>                                  3,299,744                       0
<CURRENT-ASSETS>                            81,338,731                       0
<PP&E>                                     637,077,238                       0
<DEPRECIATION>                             103,568,475                       0
<TOTAL-ASSETS>                             655,669,994                       0
<CURRENT-LIABILITIES>                       68,187,291                       0
<BONDS>                                    380,294,578                       0
<PREFERRED-MANDATORY>                                0                       0
<PREFERRED>                                          0                       0
<COMMON>                                    49,537,562                       0
<OTHER-SE>                                  25,694,635                       0
<TOTAL-LIABILITY-AND-EQUITY>               665,669,994                       0
<SALES>                                    124,222,043             102,982,244
<TOTAL-REVENUES>                           124,222,043             102,982,244
<CGS>                                                0                       0
<TOTAL-COSTS>                              105,296,222              86,416,596
<OTHER-EXPENSES>                                     0                       0
<LOSS-PROVISION>                                     0                       0
<INTEREST-EXPENSE>                           7,926,358               7,417,599
<INCOME-PRETAX>                             12,244,258               9,586,016
<INCOME-TAX>                                 5,103,150               4,472,809
<INCOME-CONTINUING>                          7,141,108               5,113,207
<DISCONTINUED>                                       0                       0
<EXTRAORDINARY>                                      0                       0
<CHANGES>                                            0                       0
<NET-INCOME>                                 7,141,108               5,113,207
<EPS-PRIMARY>                                    40.05                   28.49
<EPS-DILUTED>                                    38.28                   27.21