<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM APPLICABLE
FINANCIAL STATEMENTS AND IS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH
FINANCIAL STATEMENTS.
</LEGEND>
<MULTIPLIER>  1,000

                             
<PERIOD-TYPE>                   3-MOS
<FISCAL-YEAR-END>                          DEC-31-2000
<PERIOD-END>                               MAR-31-2000
<CASH>                                          15,526
<SECURITIES>                                         0
<RECEIVABLES>                                   32,697
<ALLOWANCES>                                     2,129
<INVENTORY>                                          0
<CURRENT-ASSETS>                                60,717
<PP&E>                                       1,223,233
<DEPRECIATION>                               (527,849)
<TOTAL-ASSETS>                                 781,931
<CURRENT-LIABILITIES>                           65,949
<BONDS>                                        262,829
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                         17
<COMMON>                                           429
<OTHER-SE>                                     298,756
<TOTAL-LIABILITY-AND-EQUITY>                   781,931
<SALES>                                              0
<TOTAL-REVENUES>                                60,868
<CGS>                                                0
<TOTAL-COSTS>                                   46,125
<OTHER-EXPENSES>                                  (99)
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                               7,680
<INCOME-PRETAX>                                  7,354
<INCOME-TAX>                                     2,300
<INCOME-CONTINUING>                                987
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                       987
<EPS-BASIC>                                       0.02
<EPS-DILUTED>                                     0.02