<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE BALANCE
SHEET AT DECEMBER 31, 1999, AND THE STATEMENT OF INCOME FOR THE YEAR ENDED
DECEMBER 31, 1999, AND IS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH
FINANCIAL STATEMENTS.
</LEGEND>
<MULTIPLIER> 1000

                             
<PERIOD-TYPE>                   YEAR
<FISCAL-YEAR-END>                          DEC-31-1999
<PERIOD-END>                               DEC-31-1999
<CASH>                                              37
<SECURITIES>                                         0
<RECEIVABLES>                                    69601
<ALLOWANCES>                                      1850
<INVENTORY>                                      46179
<CURRENT-ASSETS>                                244276
<PP&E>                                         3687303
<DEPRECIATION>                                 1206607
<TOTAL-ASSETS>                                 3063829
<CURRENT-LIABILITIES>                           182541
<BONDS>                                         684271
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                       1065634
<OTHER-SE>                                       56871
<TOTAL-LIABILITY-AND-EQUITY>                   3063829
<SALES>                                         638340
<TOTAL-REVENUES>                                638340
<CGS>                                           137478
<TOTAL-COSTS>                                   329013
<OTHER-EXPENSES>                                     0
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                               49518
<INCOME-PRETAX>                                 119248
<INCOME-TAX>                                     34987
<INCOME-CONTINUING>                              84261
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                     84261
<EPS-BASIC>                                          0
<EPS-DILUTED>                                        0