<ARTICLE> 5
<LEGEND>
This schedule contains summary financial information extracted from the
statement of income and balance sheet and is qualified in its entirety by
references to such financial statements.
</LEGEND>
<MULTIPLIER> 1,000
       
                             
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          DEC-31-1997
<PERIOD-START>                              JAN-1-1997
<PERIOD-END>                               JUN-30-1997
<CASH>                                           3,145
<SECURITIES>                                         0
<RECEIVABLES>                                    4,010
<ALLOWANCES>                                         7
<INVENTORY>                                         67
<CURRENT-ASSETS>                                 7,927
<PP&E>                                          98,512
<DEPRECIATION>                                  37,691
<TOTAL-ASSETS>                                  69,690
<CURRENT-LIABILITIES>                            4,348
<BONDS>                                         18,071
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                           483
<OTHER-SE>                                      35,376
<TOTAL-LIABILITY-AND-EQUITY>                    69,690
<SALES>                                         10,176
<TOTAL-REVENUES>                                11,100
<CGS>                                            3,540
<TOTAL-COSTS>                                    2,215
<OTHER-EXPENSES>                                     0
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                                 806
<INCOME-PRETAX>                                    654
<INCOME-TAX>                                       119
<INCOME-CONTINUING>                                535
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                       535
<EPS-PRIMARY>                                      .11
<EPS-DILUTED>                                      .11