<ARTICLE> 5
<RESTATED> 
<MULTIPLIER> 1,000
       
                                                                       
<PERIOD-TYPE>                   3-MOS                   6-MOS                   9-MOS
<FISCAL-YEAR-END>                          DEC-31-1998             DEC-31-1998             DEC-31-1998
<PERIOD-END>                               MAR-31-1998             JUN-30-1998             SEP-30-1998
<CASH>                                           6,765                 127,893                  39,959
<SECURITIES>                                         0                       0                       0
<RECEIVABLES>                                        0                       0                       0
<ALLOWANCES>                                         0                       0                       0
<INVENTORY>                                          0                       0                       0
<CURRENT-ASSETS>                                     0                       0                       0
<PP&E>                                       1,448,987               2,262,551               2,413,204
<DEPRECIATION>                                 108,865                 127,198                 147,285
<TOTAL-ASSETS>                               1,356,682               2,284,052               2,322,270
<CURRENT-LIABILITIES>                                0                       0                       0
<BONDS>                                        535,856                 926,118                 962,728
<PREFERRED-MANDATORY>                                0                       0                       0
<PREFERRED>                                          0                      42                      42
<COMMON>                                           319                     446                     446
<OTHER-SE>                                     709,639               1,203,832               1,194,979
<TOTAL-LIABILITY-AND-EQUITY>                 1,356,682               2,284,052               2,322,270
<SALES>                                              0                       0                       0
<TOTAL-REVENUES>                                58,592                 150,179                 236,728
<CGS>                                                0                       0                       0
<TOTAL-COSTS>                                   25,607                  62,218                  95,877
<OTHER-EXPENSES>                                14,488                  36,977                  57,388
<LOSS-PROVISION>                                     0                       0                       0
<INTEREST-EXPENSE>                               7,754                  23,266                  36,680
<INCOME-PRETAX>                                      0                       0                       0
<INCOME-TAX>                                         0                       0                       0
<INCOME-CONTINUING>                                  0                       0                       0
<DISCONTINUED>                                       0                       0                       0
<EXTRAORDINARY>                                      0                       0                       0
<CHANGES>                                            0                       0                       0
<NET-INCOME>                                     8,961                  23,215                  40,208
<EPS-PRIMARY>                                     0.28                    0.49                    0.83
<EPS-DILUTED>                                     0.27                    0.47                    0.79