<ARTICLE> 5 <PERIOD-TYPE> 3-MOS <FISCAL-YEAR-END> MAR-31-1998 <PERIOD-END> JUN-30-1997 <CASH> 7,600,000 <SECURITIES> 0 <RECEIVABLES> 291,000,000 <ALLOWANCES> 0 <INVENTORY> 318,000,000 <CURRENT-ASSETS> 0 <PP&E> 1,161,600,000 <DEPRECIATION> (439,600,000) <TOTAL-ASSETS> 1,417,600,000 <CURRENT-LIABILITIES> 0 <BONDS> 0 <COMMON> 43,100,000 <PREFERRED-MANDATORY> 0 <PREFERRED> 0 <OTHER-SE> 792,700,000 <TOTAL-LIABILITY-AND-EQUITY> 1,417,600,000 <SALES> 0 <TOTAL-REVENUES> 560,100,000 <CGS> 0 <TOTAL-COSTS> 459,200,000 <OTHER-EXPENSES> 42,600,000 <LOSS-PROVISION> 0 <INTEREST-EXPENSE> 5,000,000 <INCOME-PRETAX> 52,600,000 <INCOME-TAX> 19,400,000 <INCOME-CONTINUING> 33,200,000 <DISCONTINUED> 0 <EXTRAORDINARY> 0 <CHANGES> 0 <NET-INCOME> 33,200,000 <EPS-PRIMARY> 0.76 <EPS-DILUTED> 0