<ARTICLE>                     5
<LEGEND>
This schedule contains summary financial information extracted from the
consolidated  balance sheet, consolidated statement of operations, and
consolidated statement of cash flows included in the Company's Form 10-Q for the
period ending September 30, 1998, and is qualified in its entirety by reference
to such financial statements.
</LEGEND>
                        
                        
<MULTIPLIER>                   1,000
       
                             
<PERIOD-TYPE>                   9-MOS
<FISCAL-YEAR-END>                              Dec-31-1998
<PERIOD-START>                                 Jan-01-1998
<PERIOD-END>                                   Sep-30-1998
<CASH>                                              11,034
<SECURITIES>                                        71,296
<RECEIVABLES>                                        3,442
<ALLOWANCES>                                             0
<INVENTORY>                                              0
<CURRENT-ASSETS>                                    22,566
<PP&E>                                              70,353
<DEPRECIATION>                                      37,944
<TOTAL-ASSETS>                                     129,499
<CURRENT-LIABILITIES>                               22,185
<BONDS>                                             33,832
<PREFERRED-MANDATORY>                                    0
<PREFERRED>                                              0
<COMMON>                                                38
<OTHER-SE>                                          73,444
<TOTAL-LIABILITY-AND-EQUITY>                       129,499
<SALES>                                             20,566
<TOTAL-REVENUES>                                    57,477
<CGS>                                               11,957
<TOTAL-COSTS>                                       60,579
<OTHER-EXPENSES>                                         0
<LOSS-PROVISION>                                         0
<INTEREST-EXPENSE>                                   1,951
<INCOME-PRETAX>                                      5,861
<INCOME-TAX>                                             0 
<INCOME-CONTINUING>                                  5,861
<DISCONTINUED>                                           0
<EXTRAORDINARY>                                          0
<CHANGES>                                                0
<NET-INCOME>                                         5,861
<EPS-PRIMARY>                                         0.16 
<EPS-DILUTED>                                         0.15