<ARTICLE> 5 <LEGEND> THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM FORM 10-Q AND IS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS. </LEGEND> <MULTIPLIER> 1,000 <PERIOD-TYPE> 6-MOS 6-MOS <FISCAL-YEAR-END> DEC-31-1998 DEC-31-1997 <PERIOD-START> JAN-01-1998 JAN-01-1997 <PERIOD-END> JUN-30-1998 JUN-30-1997 <CASH> 7,851 8,929 <SECURITIES> 0 0 <RECEIVABLES> 12,493 7,875 <ALLOWANCES> (587) (508) <INVENTORY> 0 0 <CURRENT-ASSETS> 0 0 <PP&E> 1,101,231 834,690 <DEPRECIATION> (133,037) (121,780) <TOTAL-ASSETS> 1,015,122 757,654 <CURRENT-LIABILITIES> 0 0 <BONDS> 0 0 <PREFERRED-MANDATORY> 0 0 <PREFERRED> 0 0 <COMMON> 276 245 <OTHER-SE> 477,351 396,905 <TOTAL-LIABILITY-AND-EQUITY> 1,015,122 757,654 <SALES> 0 0 <TOTAL-REVENUES> 62,471 26,594 <CGS> 0 0 <TOTAL-COSTS> 29,507 13,245 <OTHER-EXPENSES> 0 0 <LOSS-PROVISION> 0 0 <INTEREST-EXPENSE> 9,379 5,972 <INCOME-PRETAX> 23,585 7,377 <INCOME-TAX> 0 0 <INCOME-CONTINUING> 23,585 7,377 <DISCONTINUED> 0 0 <EXTRAORDINARY> 0 3,204 <CHANGES> 0 0 <NET-INCOME> 18,664<F1> 9,462 <EPS-PRIMARY> 0.71 0.47 <EPS-DILUTED> 0.71 0.46 <FN> <F1>NET INCOME IS AFTER EQUITY IN LOSS OF UNCONSOLIDATED SUBSIDIARY OF ($25) AND MINORITY INTERESTS OF ($4,896). </FN>