<ARTICLE> 5 <MULTIPLIER> 1,000 <PERIOD-TYPE> 3-MOS <FISCAL-YEAR-END> Dec-31-2000 <PERIOD-END> Mar-31-2000 <CASH> 72,889 <SECURITIES> 0 <RECEIVABLES> 167,130 <ALLOWANCES> 0 <INVENTORY> 30,231 <CURRENT-ASSETS> 300,545 <PP&E> 4,420,946 <DEPRECIATION> 2,264,472 <TOTAL-ASSETS> 2,716,461 <CURRENT-LIABILITIES> 272,871 <BONDS> 1,306,765 <PREFERRED-MANDATORY> 0 <PREFERRED> 50 <COMMON> 16,749 <OTHER-SE> 973,669 <TOTAL-LIABILITY-AND-EQUITY> 2,716,461 <SALES> 246,068 <TOTAL-REVENUES> 246,068 <CGS> 0 <TOTAL-COSTS> 136,900 <OTHER-EXPENSES> 2,534 <LOSS-PROVISION> 0 <INTEREST-EXPENSE> 19,228 <INCOME-PRETAX> 78,284 <INCOME-TAX> 35,306 <INCOME-CONTINUING> 42,978 <DISCONTINUED> 0 <EXTRAORDINARY> 0 <CHANGES> 0 <NET-INCOME> 42,978 <EPS-BASIC> 0.25 <EPS-DILUTED> 0.25