<ARTICLE> 5
<MULTIPLIER> 1,000
       
                             
<PERIOD-TYPE>                   9-MOS
<FISCAL-YEAR-END>                          DEC-31-1998
<PERIOD-START>                             JAN-01-1998
<PERIOD-END>                               SEP-30-1998
<CASH>                                          12,168
<SECURITIES>                                         0
<RECEIVABLES>                                        0
<ALLOWANCES>                                         0
<INVENTORY>                                          0
<CURRENT-ASSETS>                                     0
<PP&E>                                         779,631
<DEPRECIATION>                                  64,966
<TOTAL-ASSETS>                                 800,612
<CURRENT-LIABILITIES>                           21,000
<BONDS>                                        339,391
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                             0
<OTHER-SE>                                     402,894
<TOTAL-LIABILITY-AND-EQUITY>                   800,612
<SALES>                                              0
<TOTAL-REVENUES>                                89,646
<CGS>                                                0
<TOTAL-COSTS>                                   25,597
<OTHER-EXPENSES>                                     0
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                              17,808
<INCOME-PRETAX>                                 27,024
<INCOME-TAX>                                         0
<INCOME-CONTINUING>                             27,024
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                    25,145
<EPS-PRIMARY>                                     1.32<F1>
<EPS-DILUTED>                                     1.30
<FN>
<F1>
September 30, 1997 Earnings Per Share:
Basic: $1.04
Diluted: $1.03
</FN>