<ARTICLE> 5 <LEGEND> THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM BALANCE SHEET AS OF JUNE 30, 2000 AND STATEMENT OF OPERATIONS FOR THE SIX MONTHS ENDED JUNE 30, 2000. </LEGEND> <MULTIPLIER> 1,000 <CURRENCY> US DOLLARS <PERIOD-TYPE> 6-MOS <FISCAL-YEAR-END> DEC-31-2000 <PERIOD-START> JAN-01-2000 <PERIOD-END> JUN-30-2000 <EXCHANGE-RATE> 1 <CASH> 16,773 <SECURITIES> 0 <RECEIVABLES> 82,612 <ALLOWANCES> 1,714 <INVENTORY> 3,596 <CURRENT-ASSETS> 103,769 <PP&E> 2,524,674 <DEPRECIATION> 1,754,358 <TOTAL-ASSETS> 980,982 <CURRENT-LIABILITIES> 101,423 <BONDS> 983,230 <PREFERRED-MANDATORY> 0 <PREFERRED> 77,852 <COMMON> 1,433 <OTHER-SE> (199,265) <TOTAL-LIABILITY-AND-EQUITY> 980,982 <SALES> 249,124 <TOTAL-REVENUES> 251,983 <CGS> 155,007 <TOTAL-COSTS> 197,684 <OTHER-EXPENSES> 0 <LOSS-PROVISION> (1,504) <INTEREST-EXPENSE> 42,677 <INCOME-PRETAX> 54,299 <INCOME-TAX> 1,463 <INCOME-CONTINUING> 52,836 <DISCONTINUED> 0 <EXTRAORDINARY> 0 <CHANGES> 0 <NET-INCOME> 52,836 <EPS-BASIC> .53 <EPS-DILUTED> .36