<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE
CONSOLIDATED CONDENSED BALANCE SHEET AS OF MAY 31, 1995 AND THE
CONSOLIDATED CONDENSED STATEMENT OF OPERATIONS FOR THE NINE MONTHS
ENDED MAY 31, 1995 AND IS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH
FINANCIAL STATEMENTS.
</LEGEND>
<MULTIPLIER> 1000
       
                             
<PERIOD-TYPE>                   9-MOS
<FISCAL-YEAR-END>                          AUG-31-1995
<PERIOD-END>                               MAY-31-1995
<CASH>                                           14437
<SECURITIES>                                      6126
<RECEIVABLES>                                    33894
<ALLOWANCES>                                       826
<INVENTORY>                                          0
<CURRENT-ASSETS>                                 68604
<PP&E>                                          567474
<DEPRECIATION>                                  446365
<TOTAL-ASSETS>                                  207846
<CURRENT-LIABILITIES>                            19439
<BONDS>                                           1586
<COMMON>                                          9283
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<OTHER-SE>                                      174283
<TOTAL-LIABILITY-AND-EQUITY>                    207846
<SALES>                                              0
<TOTAL-REVENUES>                                115280
<CGS>                                                0
<TOTAL-COSTS>                                    86669
<OTHER-EXPENSES>                                     0
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                                  62
<INCOME-PRETAX>                                   3241
<INCOME-TAX>                                      2215
<INCOME-CONTINUING>                               1026
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                      1026
<EPS-PRIMARY>                                      .02
<EPS-DILUTED>                                      .02