<ARTICLE> 5
<RESTATED> 
       
                                                                                            
<PERIOD-TYPE>                   3-MOS                   6-MOS                   9-MOS                   YEAR
<FISCAL-YEAR-END>                          DEC-31-1995             DEC-31-1995             DEC-31-1995             DEC-31-1995
<PERIOD-END>                               MAR-31-1995             JUN-30-1995             SEP-30-1995             DEC-31-1995
<CASH>                                         137,000               3,808,000               2,670,000               1,888,000
<SECURITIES>                                         0                       0                       0                       0
<RECEIVABLES>                                  475,000                 649,000                 591,000               1,035,000
<ALLOWANCES>                                         0                       0                       0                       0
<INVENTORY>                                          0                       0                       0                       0
<CURRENT-ASSETS>                               705,000               4,597,000               3,413,000               4,230,000
<PP&E>                                      19,564,000              24,220,000              23,415,000              21,091,000
<DEPRECIATION>                              10,589,000              11,094,000              11,559,000              10,922,000
<TOTAL-ASSETS>                              10,326,000              18,195,000              18,401,000              17,800,000
<CURRENT-LIABILITIES>                        6,059,000                 812,000               4,639,000               3,797,000
<BONDS>                                      1,687,000               6,039,000               1,687,000               1,689,000
<PREFERRED-MANDATORY>                                0                       0                       0                       0
<PREFERRED>                                          0                       0                       0                       0
<COMMON>                                        33,000                  86,000                  94,000                 111,000
<OTHER-SE>                                   2,547,000              11,258,000              11,981,000              12,203,000
<TOTAL-LIABILITY-AND-EQUITY>                10,326,000              18,195,000              18,401,000              17,800,000
<SALES>                                        710,000               1,355,000               2,030,000               2,959,000
<TOTAL-REVENUES>                               724,000               1,384,000               2,133,000               3,143,000
<CGS>                                                0                       0                       0                       0
<TOTAL-COSTS>                                  411,000                 638,000               1,037,000               1,514,000
<OTHER-EXPENSES>                               353,000                 913,000               1,433,000               1,816,000
<LOSS-PROVISION>                                     0                       0                       0                       0
<INTEREST-EXPENSE>                             185,000                 378,000                 533,000                 870,000
<INCOME-PRETAX>                              (419,000)             (1,111,000)             (1,725,000)             (5,876,000)
<INCOME-TAX>                                         0                       0                       0                       0
<INCOME-CONTINUING>                          (419,000)             (1,111,000)             (1,725,000)             (5,876,000)
<DISCONTINUED>                                       0                       0                       0                       0
<EXTRAORDINARY>                                      0                       0                       0                       0
<CHANGES>                                            0                       0                       0                       0
<NET-INCOME>                                 (419,000)             (1,111,000)             (1,725,000)             (5,876,000)
<EPS-PRIMARY>                                   (0.14)                  (0.31)                  (0.38)                  (0.90)
<EPS-DILUTED>                                   (0.14)                  (0.31)                  (0.38)                  (0.90)