<ARTICLE>         5
<LEGEND>
This schedule contains a summary of financial information extracted from the
Condensed Consolidated Balance Sheet and Condensed Consolidated Statement of
Operations and is qualified in its entirety by reference to such financial
statements.
</LEGEND>
<MULTIPLIER> 1000
       
                             
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          OCT-31-1996
<PERIOD-END>                               APR-30-1996
<CASH>                                          78,066
<SECURITIES>                                     3,753
<RECEIVABLES>                                        0
<ALLOWANCES>                                         0
<INVENTORY>                                          0
<CURRENT-ASSETS>                                88,151
<PP&E>                                         326,239
<DEPRECIATION>                                 156,898
<TOTAL-ASSETS>                                 303,031
<CURRENT-LIABILITIES>                           94,015
<BONDS>                                              0
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                            78
<OTHER-SE>                                     162,946
<TOTAL-LIABILITY-AND-EQUITY>                   303,031
<SALES>                                        215,573
<TOTAL-REVENUES>                               222,049
<CGS>                                           89,702
<TOTAL-COSTS>                                  209,502
<OTHER-EXPENSES>                                 3,135
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                                 309
<INCOME-PRETAX>                                  7,247
<INCOME-TAX>                                     2,971
<INCOME-CONTINUING>                              4,276
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                     4,276
<EPS-PRIMARY>                                     0.54
<EPS-DILUTED>                                     0.54