WARNING: THE EDGAR SYSTEM ENCOUNTERED ERROR(S) WHILE PROCESSING THIS SCHEDULE.

  


<ARTICLE>                     5
<CIK>                         882074                        
       
                             
<PERIOD-TYPE>                  6-MOS
<FISCAL-YEAR-END>                              DEC-31-1995
<PERIOD-END>                                   JUN-30-1996                              
<CASH>                                       1,248,000
<SECURITIES>                                         0
<RECEIVABLES>                                3,913,000
<ALLOWANCES>                                         0
<INVENTORY>                                          0
<CURRENT-ASSETS>                             5,666,000
<PP&E>                                     106,493,000
<DEPRECIATION>                             (77,303,000)    
<TOTAL-ASSETS>                              37,150,000
<CURRENT-LIABILITIES>                        6,942,000
<BONDS>                                              0
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                       123,000
<OTHER-SE>                                  23,090,000
<TOTAL-LIABILITY-AND-EQUITY>                37,150,000
<SALES>                                     10,808,000
<TOTAL-REVENUES>                            10,808,000
<CGS>                                                0
<TOTAL-COSTS>                               12,528,000
<OTHER-EXPENSES>                                     0
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                            (902,000)   
<INCOME-PRETAX>                                701,000
<INCOME-TAX>                                         0
<INCOME-CONTINUING>                            701,000
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                   701,000
<EPS-PRIMARY>                                      .06
<EPS-DILUTED>                                      .06