<ARTICLE> 5
<LEGEND>
This  schedule  contains  summary  financial   information  extracted  from  the
consolidated  statement of earnings and the  consolidated  balance sheets and is
qualified in its entirety by reference to such financial statements.
</LEGEND>
<MULTIPLIER> 1,000
<CURRENCY> U.S. DOLLARS
       
                             
<PERIOD-TYPE>                   9-MOS
<FISCAL-YEAR-END>                          DEC-31-1997
<PERIOD-START>                             JAN-01-1997
<PERIOD-END>                               SEP-30-1997
<EXCHANGE-RATE>                                      1
<CASH>                                         181,116
<SECURITIES>                                         0
<RECEIVABLES>                                   66,588
<ALLOWANCES>                                    16,801
<INVENTORY>                                     61,623
<CURRENT-ASSETS>                               349,866
<PP&E>                                       1,483,555
<DEPRECIATION>                                 649,025
<TOTAL-ASSETS>                               1,337,481
<CURRENT-LIABILITIES>                          157,699
<BONDS>                                        343,469
<COMMON>                                        20,443
<PREFERRED-MANDATORY>                           29,318
<PREFERRED>                                          0
<OTHER-SE>                                     418,428
<TOTAL-LIABILITY-AND-EQUITY>                 1,337,481
<SALES>                                        510,155
<TOTAL-REVENUES>                               710,300
<CGS>                                          394,378
<TOTAL-COSTS>                                  559,170
<OTHER-EXPENSES>                                66,571
<LOSS-PROVISION>                                 9,843
<INTEREST-EXPENSE>                              25,487
<INCOME-PRETAX>                                 49,229
<INCOME-TAX>                                    16,040
<INCOME-CONTINUING>                             33,189
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                    33,189
<EPS-PRIMARY>                                     1.62
<EPS-DILUTED>                                     1.62