<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE
COMPANY'S SEC FORM 10-Q FOR THE PERIOD ENDING SEPTEMBER 30, 1995 AND IS
QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<MULTIPLIER> 1,000
       
                             
<PERIOD-TYPE>                   9-MOS
<FISCAL-YEAR-END>                          DEC-31-1995
<PERIOD-END>                               SEP-30-1995
<CASH>                                          21,653
<SECURITIES>                                         0
<RECEIVABLES>                                   61,558
<ALLOWANCES>                                         1
<INVENTORY>                                     40,850
<CURRENT-ASSETS>                               169,432
<PP&E>                                       2,851,286
<DEPRECIATION>                               1,262,527
<TOTAL-ASSETS>                               1,880,643
<CURRENT-LIABILITIES>                          315,294
<BONDS>                                        614,055
<COMMON>                                         4,391
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<OTHER-SE>                                     416,415
<TOTAL-LIABILITY-AND-EQUITY>                 1,880,643
<SALES>                                        637,237
<TOTAL-REVENUES>                               654,977
<CGS>                                          224,674
<TOTAL-COSTS>                                  378,962
<OTHER-EXPENSES>                                59,905
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                              19,616
<INCOME-PRETAX>                                196,494
<INCOME-TAX>                                   117,993
<INCOME-CONTINUING>                             78,501
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                    78,501
<EPS-PRIMARY>                                      .89
<EPS-DILUTED>                                        0