
<TABLE> <S> <C>


<ARTICLE> 5
<LEGEND>
Financial Data Schedule information has been extracted from the Registrant's
Condensed Consolidated Balance Sheet (non-classified) as of March 31, 1999 and
the Condensed Consolidated Statement of Income for the three months then ended.
</LEGEND>
<MULTIPLIER> 1,000                                  
       
<S>                             <C>
<PERIOD-TYPE>                   3-MOS
<FISCAL-YEAR-END>                              DEC-31-1999
<PERIOD-START>                                 JAN-01-1999
<PERIOD-END>                                   MAR-31-1999
<CASH>                                             40,836
<SECURITIES>                                       21,942
<RECEIVABLES>                                      39,410
<ALLOWANCES>                                        3,225
<INVENTORY>                                             0
<CURRENT-ASSETS>                                        0
<PP&E>                                          3,138,534
<DEPRECIATION>                                    273,281
<TOTAL-ASSETS>                                  3,147,430
<CURRENT-LIABILITIES>                                   0
<BONDS>                                         1,382,008
<PREFERRED-MANDATORY>                                   0
<PREFERRED>                                         1,329
<COMMON>                                              602
<OTHER-SE>                                      1,581,435
<TOTAL-LIABILITY-AND-EQUITY>                    3,147,430
<SALES>                                           112,876
<TOTAL-REVENUES>                                  112,876
<CGS>                                              30,095
<TOTAL-COSTS>                                      30,095
<OTHER-EXPENSES>                                        0
<LOSS-PROVISION>                                        0
<INTEREST-EXPENSE>                                 23,238
<INCOME-PRETAX>                                    39,488
<INCOME-TAX>                                            0
<INCOME-CONTINUING>                                39,488
<DISCONTINUED>                                          0
<EXTRAORDINARY>                                         0
<CHANGES>                                               0
<NET-INCOME>                                       39,488
<EPS-PRIMARY>                                        0.55
<EPS-DILUTED>                                        0.54
        


</TABLE>
