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Supplemental Oil And Gas Information (Tables)
12 Months Ended
Dec. 31, 2013
Supplemental Oil And Gas Information [Abstract]  
Schedule Of Capitalized Costs Related To Oil And Gas Producing Activities
  Years Ended December 31,
    2013     2012  
Proved oil and gas properties $ 45,101   $ 43,351  
Unproved properties   736     457  
Total proved and unproved oil and gas properties $ 45,837   $ 43,808  
             
Less accumulated depreciation, depletion and amortization   (21,714 )   (19,108 )
Net oil and gas properties $ 24,123   $ 24,700  
Schedule Of Oil And Gas Property Acquisition, Exploration And Development
  Years Ended December 31,
    2013   2012   2011
Property acquisitions proved $ -  $ - $ -
Property acquisitions unproved   488   188   -
Exploration cost   914   4,608   708
Development cost   998   2,649   8,278
Total $ 2,400 $ 7,445 $ 8,986
Schedule Of Results Of Operations From Oil And Gas Producing Activities
  Years Ended December 31,
    2013     2012     2011  
                   
Revenues $ 15,325   $ 19,885   $ 16,862  
Production costs and taxes   (4,854 )   (5,610 )   (5,310 )
Depreciation, depletion and amortization   (2,606 )   (3,044 )   (2,195 )
Income from oil and gas producing activities $ 7,865   $ 11,231   $ 9,357  
Schedule Of Net Proved Oil And Gas Reserves And The Changes In Net Proved Oil And Gas Reserves
  Oil (MBbl)   Gas (MMcf)   MBOE  
Proved reserves at December 31, 2010 2,496   27   2,500  
             
Revisions of previous estimates 10   3   11  
Improved recovery            
Purchase of reserves in place            
Extensions and discoveries 274   -   274  
Production (189 ) (26 ) (193 )
Sales of reserves in place            
             
Proved reserves at December 31, 2011 2,591   4   2,592  
             
Revisions of previous estimates (337 ) 61   (327 )
Improved recovery -   -   -  
Purchase of reserves in place -   -   -  
Extensions and discoveries 186   -   186  
Production (227 ) (43 ) (234 )
Sales of reserves in place -   -   -  
             
Proved reserves at December 31, 2012 2,213   22   2,217  
             
Revisions of previous estimates (153 ) 16   (151 )
Improved recovery -   -   -  
Purchase of reserves in place -   -   -  
Extensions and discoveries 170   -   170  
Production (166 ) (38 ) (172 )
Sales of reserves in place (24 ) -   (24 )
             
Proved reserves at December 31, 2013 2,040   -   2,040  
             
Proved developed reserves at:            
December 31, 2010 1,800   27   1,804  
December 31, 2011 1,939   4   1,940  
December 31, 2012 1,822   22   1,826  
December 31, 2013 1,575   -   1,575  
             
Proved undeveloped reserves at:            
December 31, 2010 696   -   696  
December 31, 2011 652   -   652  
December 31, 2012 391   -   391  
December 31, 2013 465   -   465  
Schedule Of Reserve Value By Category And The Respective Present Values, Before Income Taxes, Discounted At 10% As A Percentage Of Total Proved Reserves
  Year Ended 12/31/13 Year Ended 12/31/12 Year Ended 12/31/11
    Oil   Gas   Total     Oil     Gas   Total     Oil     Gas   Total  
Total proved reserves year-end                                              
reserve report $ 47,856   - $ 47,856   $ 53,906   $ 5 $ 53,911   $ 69,748   $ 15 $ 69,763  
Proved developed producing                                              
reserves (PDP) $ 34,440   - $ 34,440   $ 42,621   $ 5 $ 42,626   $ 46,606   $ 15 $ 46,621  
% of PDP reserves to total proved                                              
reserves   72 % -   72 %   79 %   -   79 %   67 %   -   67 %
Proved developed non-producing                                              
reserves $ 4,868   - $ 4,868   $ 3,234     - $ 3,234   $ 3,977     - $ 3,977  
% of PDNP reserves to total proved                                              
reserves   10 % -   10 %   6 %   -   6 %   6 %   -   6 %
Proved undeveloped reserves (PUD)                                              
  $ 8,548   - $ 8,548   $ 8,051     - $ 8,051   $ 19,165     - $ 19,165  
% of PUD reserves to total proved                                              
reserves   18 % -   18 %   15 %   -   15 %   27 %   -   27 %
Schedule Of Standardized Measure Of Discounted Futures Net Cash Flows From Proved Oil And Gas Reserves
  Years Ended December 31,
    2013     2012     2011  
Future cash inflows $ 183,801   $ 194,941   $ 229,366  
Future production costs and taxes   (82,307 )   (82,069 )   (82,086 )
Future development costs   (11,162 )   (7,894 )   (12,611 )
Future income tax expenses   (18,910 )   (19,472 )   (34,750 )
Future net cash flows   71,422     85,506     99,919  
                   
Discount at 10% for timing of cash flows   (32,714 )   (40,152 )   (48,010 )
Standardized measure of discounted future net cash flows $ 38,708   $ 45,354   $ 51,909  
Schedule Of Changes In The Standardized Measure Of Discounted Future Net Cash Flows From Proved Oil And Gas Reserves
  Years Ended December 31,
    2013     2012     2011  
Balance, beginning of year $ 45,354   $ 51,909   $ 48,344  
Sales, net of production costs and taxes   (10,471 )   (14,275 )   (11,552 )
Discoveries and extensions, net of costs   4,047     6,967     10,923  
Purchase of reserves in place   -     -     -  
Sale of reserves in place   (767 )   -     -  
Net changes in prices and production costs   (1,277 )   (6,067 )   15,428  
Revisions of quantity estimates   (4,306 )   (9,883 )   343  
Previously estimated development cost incurred during the year   3,149     8,760     5,346  
Changes in future development costs   (1,392 )   (1,919 )   (1,109 )
Changes in production rates (timing) and other   368     (5,657 )   (2,336 )
Accretion of discount   4,593     6,223     4,376  
Net change in income taxes   (590 )   9,296     (17,854 )
Balance, end of year $ 38,708   $ 45,354   $ 51,909