<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-31-1994
<PERIOD-END>                               DEC-31-1994
<CASH>                                       2,062,000
<SECURITIES>                               194,930,000
<RECEIVABLES>                               61,151,000
<ALLOWANCES>                               (1,433,000)
<INVENTORY>                                 14,330,000
<CURRENT-ASSETS>                           281,376,000
<PP&E>                                     806,651,000
<DEPRECIATION>                           (336,590,000)
<TOTAL-ASSETS>                             792,929,000
<CURRENT-LIABILITIES>                       79,203,000
<BONDS>                                              0
<COMMON>                                     3,132,000
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<OTHER-SE>                                 557,272,000
<TOTAL-LIABILITY-AND-EQUITY>               792,929,000
<SALES>                                    271,743,000
<TOTAL-REVENUES>                           312,602,000
<CGS>                                      147,603,000
<TOTAL-COSTS>                              194,314,000
<OTHER-EXPENSES>                                     0
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                           2,322,000
<INCOME-PRETAX>                            115,966,000
<INCOME-TAX>                                41,491,000
<INCOME-CONTINUING>                                  0
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                74,475,000
<EPS-PRIMARY>                                     2.35
<EPS-DILUTED>                                     2.35