<TABLE> <S> <C>
<ARTICLE> 5
<LEGEND>
RESTATED - SEE NOTE 12 TO THE UNAUDITED CONDENSED CONSOLIDATED FINANCIAL
STATEMENTS
</LEGEND>
<RESTATED>
<MULTIPLIER> 1,000
<S> <C>
<PERIOD-TYPE> 3-MOS
<FISCAL-YEAR-END> SEP-30-2000
<PERIOD-START> OCT-01-1999
<PERIOD-END> DEC-31-1999
<CASH> 38,544
<SECURITIES> 255,558
<RECEIVABLES> 99,525
<ALLOWANCES> 2,806
<INVENTORY> 24,421
<CURRENT-ASSETS> 178,667
<PP&E> 1,466,985
<DEPRECIATION> 782,153
<TOTAL-ASSETS> 1,138,108
<CURRENT-LIABILITIES> 69,764
<BONDS> 0
0
0
<COMMON> 5,353
<OTHER-SE> 864,271
<TOTAL-LIABILITY-AND-EQUITY> 1,138,108
<SALES> 135,194
<TOTAL-REVENUES> 149,581
<CGS> 108,058
<TOTAL-COSTS> 108,058
<OTHER-EXPENSES> 3,671
<LOSS-PROVISION> 0
<INTEREST-EXPENSE> 821
<INCOME-PRETAX> 34,210
<INCOME-TAX> 14,259
<INCOME-CONTINUING> 20,461
<DISCONTINUED> 0
<EXTRAORDINARY> 0
<CHANGES> 0
<NET-INCOME> 20,461
<EPS-BASIC> 0.41
<EPS-DILUTED> 0.41
</TABLE>