<ARTICLE> 5 <MULTIPLIER> 1,000 <CURRENCY> U.S. DOLLARS <PERIOD-TYPE> YEAR <FISCAL-YEAR-END> DEC-31-1996 <PERIOD-END> DEC-31-1996 <EXCHANGE-RATE> 1 <CASH> 3,338 <SECURITIES> 0 <RECEIVABLES> 21,443 <ALLOWANCES> 0 <INVENTORY> 0 <CURRENT-ASSETS> 32,104 <PP&E> 216,742 <DEPRECIATION> 115,232 <TOTAL-ASSETS> 144,271 <CURRENT-LIABILITIES> 18,178 <BONDS> 43,589 <PREFERRED-MANDATORY> 0 <PREFERRED> 0 <COMMON> 88 <OTHER-SE> 75,072 <TOTAL-LIABILITY-AND-EQUITY> 144,271 <SALES> 56,774 <TOTAL-REVENUES> 59,551 <CGS> 12,897 <TOTAL-COSTS> 12,897 <OTHER-EXPENSES> 78 <LOSS-PROVISION> 0 <INTEREST-EXPENSE> 2,137 <INCOME-PRETAX> 15,500 <INCOME-TAX> 5,333 <INCOME-CONTINUING> 10,167 <DISCONTINUED> 159 <EXTRAORDINARY> 0 <CHANGES> 0 <NET-INCOME> 10,326 <EPS-PRIMARY> 1.18 <EPS-DILUTED> 1.18