<ARTICLE> 5
<MULTIPLIER> 1,000

                                                  
<PERIOD-TYPE>                   3-MOS                   6-MOS
<FISCAL-YEAR-END>                          JUN-30-2001             JUN-30-2001
<PERIOD-START>                             OCT-01-2000             JUL-01-2000
<PERIOD-END>                               DEC-31-2000             DEC-31-2000
<CASH>                                          10,570                  10,570
<SECURITIES>                                         0                       0
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<ALLOWANCES>                                         0                       0
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<DEPRECIATION>                               2,345,052               2,345,052
<TOTAL-ASSETS>                               3,812,064               3,812,064
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<BONDS>                                        298,691                 298,691
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<PREFERRED>                                          0                       0
<COMMON>                                           803                     803
<OTHER-SE>                                     243,226                 243,226
<TOTAL-LIABILITY-AND-EQUITY>                 3,812,064               3,812,064
<SALES>                                        504,753                 993,976
<TOTAL-REVENUES>                               528,810               1,031,130
<CGS>                                          363,910                 732,104
<TOTAL-COSTS>                                  496,016                 993,785
<OTHER-EXPENSES>                                     0                       0
<LOSS-PROVISION>                                     0                       0
<INTEREST-EXPENSE>                              15,542                  30,806
<INCOME-PRETAX>                                 32,794                  37,345
<INCOME-TAX>                                     3,387                   3,842
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<NET-INCOME>                                    29,407                  33,503
<EPS-BASIC>                                       0.37                    0.43
<EPS-DILUTED>                                        0                       0