<TABLE> <S> <C>

<ARTICLE> 5
<RESTATED> 
<MULTIPLIER> 1,000
       
<S>                             <C>                     <C>                     <C>                     <C>
<PERIOD-TYPE>                   3-MOS                   6-MOS                   9-MOS                   YEAR
<FISCAL-YEAR-END>                          DEC-31-1996             DEC-31-1996             DEC-31-1996             DEC-31-1996
<PERIOD-START>                             JAN-01-1996             JAN-01-1996             JAN-01-1996             JAN-01-1996
<PERIOD-END>                               MAR-31-1996             JUN-30-1996             SEP-30-1996             DEC-31-1996
<CASH>                                              83                   3,116                   3,626                   3,397
<SECURITIES>                                         0                       0                       0                       0
<RECEIVABLES>                                        0                       0                       0                       0
<ALLOWANCES>                                         0                       0                       0                       0
<INVENTORY>                                          0                       0                       0                       0
<CURRENT-ASSETS>                                     0                       0                       0                       0
<PP&E>                                         563,827                 611,801                 639,180                 685,499
<DEPRECIATION>                                  42,260                  45,998                  49,958                  53,049
<TOTAL-ASSETS>                                 672,376                 714,014                 749,686                 774,773
<CURRENT-LIABILITIES>                                0                       0                       0                       0
<BONDS>                                              0                       0                       0                       0
<PREFERRED-MANDATORY>                                0                       0                       0                       0
<PREFERRED>                                         42                      42                      42                      42
<COMMON>                                           162                     162                     162                     162
<OTHER-SE>                                     377,800                 375,450                 373,148                 372,008
<TOTAL-LIABILITY-AND-EQUITY>                   672,376                 714,014                 749,686                 774,773
<SALES>                                         21,059                  43,483                  67,526                  92,843
<TOTAL-REVENUES>                                21,752                  44,959                  69,834                  95,999
<CGS>                                                0                       0                       0                       0
<TOTAL-COSTS>                                   11,631                  24,055                  37,596                  51,323
<OTHER-EXPENSES>                                     0                       0                       0                       0
<LOSS-PROVISION>                                     0                       0                       0                       0
<INTEREST-EXPENSE>                               3,166                   6,892                  11,122                  16,334
<INCOME-PRETAX>                                  6,955                  14,012                  21,116                  28,342
<INCOME-TAX>                                         0                       0                       0                       0
<INCOME-CONTINUING>                              6,955                  14,012                  21,116                  28,342
<DISCONTINUED>                                       0                       0                       0                       0
<EXTRAORDINARY>                                      0                       0                       0                       0
<CHANGES>                                            0                       0                       0                       0
<NET-INCOME>                                     6,955                  14,012                  21,116                  30,786
<EPS-PRIMARY>                                     0.28                    0.57                    0.87                    1.23
<EPS-DILUTED>                                     0.28                    0.57                    0.87                    1.23
        

</TABLE>