<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM BALANCE
SHEET AS OF JUNE 30, 1999, AND STATEMENT OF INCOME FOR THE SIX MONTHS ENDED JUNE
30, 1999.
</LEGEND>
<MULTIPLIER> 1,000

                             
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          DEC-31-1999
<PERIOD-START>                             JAN-01-1999
<PERIOD-END>                               JUN-30-1999
<CASH>                                          28,995
<SECURITIES>                                         0
<RECEIVABLES>                                   58,241
<ALLOWANCES>                                     3,244
<INVENTORY>                                      4,877
<CURRENT-ASSETS>                                90,960
<PP&E>                                       2,342,506
<DEPRECIATION>                               1,661,777
<TOTAL-ASSETS>                                 800,910
<CURRENT-LIABILITIES>                           75,328
<BONDS>                                        958,118
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                    230,000
<COMMON>                                         1,055
<OTHER-SE>                                   (479,608)
<TOTAL-LIABILITY-AND-EQUITY>                   800,910
<SALES>                                        146,569
<TOTAL-REVENUES>                               150,409
<CGS>                                          113,737
<TOTAL-COSTS>                                  153,886
<OTHER-EXPENSES>                                     0
<LOSS-PROVISION>                                     6
<INTEREST-EXPENSE>                              40,149
<INCOME-PRETAX>                                (3,477)
<INCOME-TAX>                                       326
<INCOME-CONTINUING>                            (3,803)
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                   (3,803)
<EPS-BASIC>                                      (.12)
<EPS-DILUTED>                                    (.12)