<ARTICLE> 5
<LEGEND>
This schedule contains summary financial information extracted from the 
unaudited Consolidated Balance Sheet at June 30, 1996 and the unaudited
Consolidated Statement of Income for the six months ended June 30, 1996
and is qualified in its entirety by reference to such financial 
statements.
</LEGEND>
<MULTIPLIER> 1,000
       
                             
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          DEC-31-1996
<PERIOD-START>                             JAN-01-1996
<PERIOD-END>                               JUN-30-1996
<CASH>                                          10,640
<SECURITIES>                                         0
<RECEIVABLES>                                   31,103
<ALLOWANCES>                                   (1,109)
<INVENTORY>                                      1,489
<CURRENT-ASSETS>                                48,205
<PP&E>                                         854,126
<DEPRECIATION>                                 218,382
<TOTAL-ASSETS>                                 691,021
<CURRENT-LIABILITIES>                           34,612
<BONDS>                                        337,933
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                           278
<OTHER-SE>                                     249,089
<TOTAL-LIABILITY-AND-EQUITY>                   691,021
<SALES>                                         83,639
<TOTAL-REVENUES>                                85,666
<CGS>                                           21,544
<TOTAL-COSTS>                                   75,538
<OTHER-EXPENSES>                                     0
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                              13,657
<INCOME-PRETAX>                                 10,128
<INCOME-TAX>                                     3,342
<INCOME-CONTINUING>                              6,786
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                     6,786
<EPS-PRIMARY>                                      .24
<EPS-DILUTED>                                      .24