<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE
CONSOLIDATED BALANCE SHEETS AND CONSOLIDATED STATEMENTS OF OPERATIONS FOUND ON
PAGES 1 AND 2 OF THE COMPANY'S 10 Q FOR THE YEAR TO DATE AND IS QUALIFIED IN ITS
ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<MULTIPLIER> 1,000
       
                             
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          DEC-31-1998
<PERIOD-START>                             JAN-01-1998
<PERIOD-END>                               JUN-30-1998
<CASH>                                          96,366
<SECURITIES>                                         0
<RECEIVABLES>                                   23,967
<ALLOWANCES>                                         0
<INVENTORY>                                          0
<CURRENT-ASSETS>                                     0
<PP&E>                                       1,742,436
<DEPRECIATION>                               (220,329)
<TOTAL-ASSETS>                               1,957,382
<CURRENT-LIABILITIES>                           15,357
<BONDS>                                      1,188,791
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                    250,000
<COMMON>                                           325
<OTHER-SE>                                     305,934
<TOTAL-LIABILITY-AND-EQUITY>                 1,957,382
<SALES>                                              0
<TOTAL-REVENUES>                               122,582
<CGS>                                                0
<TOTAL-COSTS>                                   40,178
<OTHER-EXPENSES>                                23,607
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                              41,212
<INCOME-PRETAX>                                 14,280
<INCOME-TAX>                                         0
<INCOME-CONTINUING>                             14,280
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                   (90)
<CHANGES>                                            0
<NET-INCOME>                                    14,190
<EPS-PRIMARY>                                     0.49
<EPS-DILUTED>                                     0.49