<ARTICLE> 5
<LEGEND>
This schedule contains summary financial information extracted from the Form 100
financial statements filed for the period entire March 31, 1996 and is qualified
in its entirety by reference to such financial statements.
</LEGEND>
       
                             
<PERIOD-TYPE>                   9-MOS
<FISCAL-YEAR-END>                          JUN-30-1996
<PERIOD-START>                             JUL-01-1995
<PERIOD-END>                               MAR-31-1996
<CASH>                                           5,392
<SECURITIES>                                         0
<RECEIVABLES>                                   11,678
<ALLOWANCES>                                         0
<INVENTORY>                                      1,334
<CURRENT-ASSETS>                                18,600
<PP&E>                                         135,323
<DEPRECIATION>                               (105,356)
<TOTAL-ASSETS>                                  48,822
<CURRENT-LIABILITIES>                            9,019
<BONDS>                                         18,030
<COMMON>                                             0
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<OTHER-SE>                                      17,387
<TOTAL-LIABILITY-AND-EQUITY>                    48,822
<SALES>                                         19,277
<TOTAL-REVENUES>                                21,834
<CGS>                                           11,448
<TOTAL-COSTS>                                    1,091
<OTHER-EXPENSES>                                 3,004
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                               1,164
<INCOME-PRETAX>                                  5,127
<INCOME-TAX>                                     1,591
<INCOME-CONTINUING>                              3,536
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                     41
<CHANGES>                                            0
<NET-INCOME>                                     3,577
<EPS-PRIMARY>                                    2,557
<EPS-DILUTED>                                        0