<ARTICLE>                                          5
       
                                                
<PERIOD-TYPE>                                      12-MOS
<FISCAL-YEAR-END>                                  DEC-31-1997
<PERIOD-START>                                     JAN-1-1997
<PERIOD-END>                                       DEC-31-1997

<CASH>                                                       5,589,307
<SECURITIES>                                                         0
<RECEIVABLES>                                               24,367,167
<ALLOWANCES>                                                  (368,029)
<INVENTORY>                                                 15,619,085
<CURRENT-ASSETS>                                            46,223,019
<PP&E>                                                     650,030,198
<DEPRECIATION>                                            (232,136,950)
<TOTAL-ASSETS>                                             485,567,299
<CURRENT-LIABILITIES>                                       34,461,148
<BONDS>                                                    312,006,501
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<PREFERRED>                                                          0
<COMMON>                                                             0
<OTHER-SE>                                                 109,119,697
<TOTAL-LIABILITY-AND-EQUITY>                               485,567,299
<SALES>                                                   $143,947,730
<TOTAL-REVENUES>                                          $143,947,730
<CGS>                                                                0
<TOTAL-COSTS>                                              113,070,990
<OTHER-EXPENSES>                                                     0
<LOSS-PROVISION>                                                     0
<INTEREST-EXPENSE>                                          25,084,361
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<INCOME-TAX>                                                         0
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<DISCONTINUED>                                                       0
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<EPS-PRIMARY>                                                        0
<EPS-DILUTED>                                                        0