<ARTICLE> 5
<MULTIPLIER> 1,000
<CURRENCY> U.S. DOLLARS
       
                             
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          DEC-31-1996
<PERIOD-START>                             JAN-01-1997
<PERIOD-END>                               JUN-30-1997
<EXCHANGE-RATE>                                      1
<CASH>                                             149
<SECURITIES>                                         0
<RECEIVABLES>                                   78,295
<ALLOWANCES>                                     1,767
<INVENTORY>                                     40,538
<CURRENT-ASSETS>                               135,457
<PP&E>                                       1,905,794
<DEPRECIATION>                                 818,172
<TOTAL-ASSETS>                               1,470,956
<CURRENT-LIABILITIES>                          117,061
<BONDS>                                        455,415
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                     74,000
<COMMON>                                       294,550
<OTHER-SE>                                     248,218
<TOTAL-LIABILITY-AND-EQUITY>                 1,470,956
<SALES>                                        306,881
<TOTAL-REVENUES>                               306,881
<CGS>                                          180,544
<TOTAL-COSTS>                                  229,256
<OTHER-EXPENSES>                                     0
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                              19,093
<INCOME-PRETAX>                                 62,174
<INCOME-TAX>                                    23,444
<INCOME-CONTINUING>                             38,730
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                    38,730
<EPS-PRIMARY>                                     0.00<F1>
<EPS-DILUTED>                                     0.00<F1>
<FN>
<F1>*All common stock os owned by parent, no EPS required.
</FN>