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<TABLE> <S> <C>
<ARTICLE> 5
<S> <C>
<PERIOD-TYPE> 3-MOS
<FISCAL-YEAR-END> APR-30-2000
<PERIOD-END> APR-30-2000
<CASH> 34,658
<SECURITIES> 0
<RECEIVABLES> 46,288
<ALLOWANCES> 381
<INVENTORY> 10,692
<CURRENT-ASSETS> 96,297
<PP&E> 2,563,769
<DEPRECIATION> 1,509,224
<TOTAL-ASSETS> 1,189,040
<CURRENT-LIABILITIES> 172,697
<BONDS> 324,267
0
0
<COMMON> 5,396
<OTHER-SE> 428,019
<TOTAL-LIABILITY-AND-EQUITY> 1,189,040
<SALES> 315,781
<TOTAL-REVENUES> 315,781
<CGS> 0
<TOTAL-COSTS> 238,523
<OTHER-EXPENSES> 5,075
<LOSS-PROVISION> 0
<INTEREST-EXPENSE> 7,628
<INCOME-PRETAX> 64,515
<INCOME-TAX> 22,860
<INCOME-CONTINUING> 41,655
<DISCONTINUED> 0
<EXTRAORDINARY> 0
<CHANGES> 0
<NET-INCOME> 41,655
<EPS-BASIC> .84<F1>
<EPS-DILUTED> .84<F2>
<FN>
<F1>Earnings per share - primary
Class A Shares .84
Class B Shares .85
<F2>Earnings per share - fully diluted
Class A Shares .84
Class B Shares .85
</FN>
</TABLE>
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