<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE
CONSOLIDATED CONDENSED BALANCE SHEET AS OF FEBRUARY 28, 1995 AND THE
CONSOLIDATED CONDENSED STATEMENT OF OPERATIONS FOR THE SIX MONTHS ENDED FEBRUARY
28, 1995 AND IS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL
STATEMENTS.
</LEGEND>
<MULTIPLIER> 1000
       
                             
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          AUG-31-1995
<PERIOD-END>                               FEB-28-1995
<CASH>                                           21599
<SECURITIES>                                      1030
<RECEIVABLES>                                    32726
<ALLOWANCES>                                       826
<INVENTORY>                                          0
<CURRENT-ASSETS>                                 69040
<PP&E>                                          563071
<DEPRECIATION>                                  443050
<TOTAL-ASSETS>                                  207879
<CURRENT-LIABILITIES>                            21151
<BONDS>                                           1586
<COMMON>                                          9282
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<OTHER-SE>                                      171844
<TOTAL-LIABILITY-AND-EQUITY>                    207879
<SALES>                                              0
<TOTAL-REVENUES>                                 72021
<CGS>                                                0
<TOTAL-COSTS>                                    54532
<OTHER-EXPENSES>                                     0
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                                  35
<INCOME-PRETAX>                                    231
<INCOME-TAX>                                      1255
<INCOME-CONTINUING>                             (1024)
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                    (1024)
<EPS-PRIMARY>                                      .00
<EPS-DILUTED>                                      .00