<TABLE> <S> <C>

<ARTICLE> 5
<MULTIPLIER> 1,000

<S>                             <C>                 <C>                 <C>                 <C>                 <C>
<PERIOD-TYPE>                   3-MOS               3-MOS               6-MOS               6-MOS               YEAR
<FISCAL-YEAR-END>                      SEP-30-2000         SEP-30-1999         SEP-30-2000         SEP-30-1999         SEP-30-1999
<PERIOD-START>                         JAN-01-2000         JAN-01-1999         OCT-01-1999         OCT-01-1998         OCT-01-1998
<PERIOD-END>                           MAR-31-2000         MAR-31-1999         MAR-31-2000         MAR-31-1999         SEP-30-1999
<CASH>                                      60,459              98,659              60,459              98,659              80,547
<SECURITIES>                                36,627              53,266              36,627              53,266             145,856
<RECEIVABLES>                               76,551              98,774              76,551              98,774              48,576
<ALLOWANCES>                                 1,926               5,620               1,926               5,620               2,594
<INVENTORY>                                 43,512              65,678              43,512              65,678              31,186
<CURRENT-ASSETS>                           221,094             319,538             221,094             319,536             309,619
<PP&E>                                   1,236,298           1,223,051           1,236,298           1,223,051           1,236,880
<DEPRECIATION>                             923,900             697,068             923,900             697,068             779,691
<TOTAL-ASSETS>                             551,163             864,267             551,163             864,267             784,490
<CURRENT-LIABILITIES>                      212,929             195,859             212,929             195,859             290,905
<BONDS>                                    258,454             390,071             258,454             390,071             361,668
<PREFERRED-MANDATORY>                            0                   0                   0                   0                   0
<PREFERRED>                                      0                   0                   0                   0                   0
<COMMON>                                         5                   5                   5                   5                   5
<OTHER-SE>                                  68,008             218,988              68,008             218,988              84,204
<TOTAL-LIABILITY-AND-EQUITY>               551,163             864,267             551,163             864,267             784,490
<SALES>                                    154,487             206,187             268,979             436,375             716,460
<TOTAL-REVENUES>                           154,487             206,187             268,979             436,375             716,460
<CGS>                                      176,918             194,932             322,537             390,259             739,725
<TOTAL-COSTS>                              176,918             194,932             322,537             390,259             739,725
<OTHER-EXPENSES>                           148,318              31,287             174,046              62,308             159,050
<LOSS-PROVISION>                                 0                   0                   0                   0                   0
<INTEREST-EXPENSE>                           7,728               6,905              16,574              14,273              31,910
<INCOME-PRETAX>                          (133,012)            (19,557)           (190,488)            (18,387)           (181,661)
<INCOME-TAX>                                     0               (139)                   0                (91)            (25,946)
<INCOME-CONTINUING>                      (133,012)            (19,418)           (190,488)            (18,296)           (155,715)
<DISCONTINUED>                                   0                   0                   0                   0                   0
<EXTRAORDINARY>                            158,720                   0             158,720                   0                   0
<CHANGES>                                        0                   0                   0                   0                   0
<NET-INCOME>                                25,708            (19,418)            (31,768)            (18,296)           (155,715)
<EPS-BASIC>                                   0.51              (0.39)              (0.64)              (0.37)              (3.16)
<EPS-DILUTED>                                 0.51              (0.39)              (0.64)              (0.37)              (3.16)


</TABLE>