<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE SECOND
QUARTER BALANCE SHEET AND INCOME STATEMENT
</LEGEND>
<MULTIPLIER> 1,000
       
                             
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          JUN-30-1998
<PERIOD-START>                             JUL-01-1997
<PERIOD-END>                               DEC-31-1997
<CASH>                                          10,845
<SECURITIES>                                         0
<RECEIVABLES>                                   13,827
<ALLOWANCES>                                        57
<INVENTORY>                                     42,232
<CURRENT-ASSETS>                                83,289
<PP&E>                                         286,532
<DEPRECIATION>                                 127,567
<TOTAL-ASSETS>                                 349,485
<CURRENT-LIABILITIES>                           95,271
<BONDS>                                              0
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                         1,168
<OTHER-SE>                                     161,356
<TOTAL-LIABILITY-AND-EQUITY>                   349,485
<SALES>                                        110,152
<TOTAL-REVENUES>                               387,633
<CGS>                                           60,422
<TOTAL-COSTS>                                  310,615
<OTHER-EXPENSES>                                 7,037
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                               4,887
<INCOME-PRETAX>                                 23,513
<INCOME-TAX>                                     9,760
<INCOME-CONTINUING>                             13,753
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                    13,753
<EPS-PRIMARY>                                      .59<F1>
<EPS-DILUTED>                                      .57
<FN>
<F1>REFLECTS BASIC EPS ACCORDING TO THE NEW ACCOUNTING PRONOUNCEMENT ON EPS.
</FN>