<ARTICLE> 5 <MULTIPLIER> 1,000 <PERIOD-TYPE> 12-MOS <FISCAL-YEAR-END> DEC-31-1998 <PERIOD-START> JAN-01-1998 <PERIOD-END> DEC-31-1998 <CASH> 96,532 <SECURITIES> 3,750 <RECEIVABLES> 83,858 <ALLOWANCES> 0 <INVENTORY> 14,194 <CURRENT-ASSETS> 209,503 <PP&E> 1,094,303 <DEPRECIATION> 203,984 <TOTAL-ASSETS> 1,728,946 <CURRENT-LIABILITIES> 122,579 <BONDS> 0 <PREFERRED-MANDATORY> 0 <PREFERRED> 0 <COMMON> 20 <OTHER-SE> 168,874 <TOTAL-LIABILITY-AND-EQUITY> 1,728,946 <SALES> 507,897 <TOTAL-REVENUES> 555,948 <CGS> 357,910 <TOTAL-COSTS> 375,327 <OTHER-EXPENSES> 0 <LOSS-PROVISION> 0 <INTEREST-EXPENSE> 86,726 <INCOME-PRETAX> 73,373 <INCOME-TAX> 27,054 <INCOME-CONTINUING> 46,319 <DISCONTINUED> 0 <EXTRAORDINARY> 641 <CHANGES> 0 <NET-INCOME> 45,678 <EPS-PRIMARY> 2.27 <EPS-DILUTED> 2.16