<ARTICLE> 5
<LEGEND>
This Filing of the Article 5 EX-27 Financial Data Schedule is only a
summarization of some of the information provided in the actual 10-Q
itself.  It is meant as a supplement to the 10-Q filed electronically in
order to satisfy the requirements for EDGAR filers only and is not meant
to be a substitute for the 10-Q filing as required by the S.E.C.
</LEGEND>
       
                                         
<PERIOD-TYPE>                              12-MOS
<FISCAL-YEAR-END>                          DEC-31-1995
<PERIOD-END>                               DEC-31-1995
<CASH>                                       6,128,000
<SECURITIES>                               194,084,000
<RECEIVABLES>                               71,056,000
<ALLOWANCES>                                 1,481,000
<INVENTORY>                                  7,640,000
<CURRENT-ASSETS>                           288,909,000
<PP&E>                                     894,308,000
<DEPRECIATION>                            (384,491,000)
<TOTAL-ASSETS>                             844,435,000
<CURRENT-LIABILITIES>                       86,580,000
<BONDS>                                              0
<COMMON>                                     3,079,000
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<OTHER-SE>                                 599,922,000
<TOTAL-LIABILITY-AND-EQUITY>               844,435,000
<SALES>                                    325,793,000
<TOTAL-REVENUES>                           339,182,000
<CGS>                                       13,408,000 
<TOTAL-COSTS>                              209,128,000
<OTHER-EXPENSES>                                     0
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                           2,859,000
<INCOME-PRETAX>                            127,195,000
<INCOME-TAX>                                42,679,000
<INCOME-CONTINUING>                                  0
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0 
<NET-INCOME>                                84,516,000
<EPS-PRIMARY>                                        2.71
<EPS-DILUTED>                                        2.71