<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM F0RM 10-Q
AND IS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<MULTIPLIER> 1,000

                                                  
<PERIOD-TYPE>                   9-MOS                   9-MOS
<FISCAL-YEAR-END>                          DEC-31-1999             DEC-31-1998
<PERIOD-START>                             JAN-01-1999             JAN-01-1998
<PERIOD-END>                               SEP-30-1999             SEP-30-1998
<CASH>                                           6,857                  27,311
<SECURITIES>                                         0                       0
<RECEIVABLES>                                   18,354                  19,951
<ALLOWANCES>                                   (1,348)                   (494)
<INVENTORY>                                          0                       0
<CURRENT-ASSETS>                                     0                       0
<PP&E>                                       1,354,043               1,132,158
<DEPRECIATION>                                 165,000               (139,170)
<TOTAL-ASSETS>                               1,244,920               1,063,670
<CURRENT-LIABILITIES>                                0                       0
<BONDS>                                        526,667                 403,920
<PREFERRED-MANDATORY>                                0                       0
<PREFERRED>                                          0                       0
<COMMON>                                           279                     276
<OTHER-SE>                                     478,259                 476,122
<TOTAL-LIABILITY-AND-EQUITY>                 1,244,920               1,063,670
<SALES>                                              0                       0
<TOTAL-REVENUES>                               118,797                  98,853
<CGS>                                                0                       0
<TOTAL-COSTS>                                   54,846                  46,682
<OTHER-EXPENSES>                                     0                       0
<LOSS-PROVISION>                                 1,744                   1,059
<INTEREST-EXPENSE>                              18,420                  14,642
<INCOME-PRETAX>                                 43,787                  36,470
<INCOME-TAX>                                         0                       0
<INCOME-CONTINUING>                             43,787                  36,470
<DISCONTINUED>                                      75                       0
<EXTRAORDINARY>                                      0                       0
<CHANGES>                                            0                       0
<NET-INCOME>                                    31,617<F1>              28,649
<EPS-BASIC>                                       1.14                    1.07
<EPS-DILUTED>                                     1.14                    1.07
<FN>
<F1>Net income is shown net of equity in loss of unconsolidated subsidiary of <$22>
and minority interests of <$12,223>
</FN>