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Segment Information (Tables)
6 Months Ended
Jun. 30, 2015
Segment Information [Abstract]  
Summary of result of operations and total assets by segment
As of June 30, 2015, we had two reportable segments: Oil and Gas and Maintenance of Mineral Properties.  A summary of results of operations for the three and six months ended June 30, 2015 and 2014, and total assets as of June 30, 2015 and December 31, 2014 by segment, are as follows:
 
         
  
(In thousands)
  
(In thousands)
 
  
For the three months ended June 30,
  
For the six months ended June 30,
 
  
2015
  
2014
  
2015
  
2014
 
Revenues:
        
Oil and gas
 
$
3,285
  
$
9,128
  
$
5,964
  
$
17,384
 
Total revenues
  
3,285
   
9,128
   
5,964
   
17,384
 
                 
Operating expenses:
                
Oil and gas
  
7,284
   
6,169
   
31,250
   
11,435
 
Mineral properties
  
707
   
657
   
1,460
   
1,414
 
Total operating expenses
  
7,991
   
6,826
   
32,710
   
12,849
 
                 
Interest expense:
                
Oil and gas
  
56
   
130
   
145
   
214
 
Mineral properties
  
--
   
--
   
--
   
--
 
Total interest expense
  
56
   
130
   
145
   
214
 
                 
Operating income (loss)
                
Oil and gas
 
$
(4,055
)
 
$
2,829
  
$
(25,431
)
 
$
5,735
 
Mineral properties
  
(707
)
  
(657
)
  
(1,460
)
  
(1,414
)
Operating income (loss)
                
from identified segments
  
(4,762
)
  
2,172
   
(26,891
)
  
4,321
 
                 
General and administrative expenses
  
(1,221
)
  
(1,533
)
  
(2,700
)
  
(3,139
)
Add back interest expense
  
56
   
130
   
145
   
214
 
Other revenues and expenses
  
(353
)
  
(713
)
  
(537
)
  
(1,090
)
                 
Income (loss) before income taxes
 
$
(6,280
)
 
$
56
  
$
(29,983
)
 
$
306
 
                 
Depreciation depletion and amortization expense:
     
Oil and gas
 
$
2,055
  
$
3,583
  
$
4,929
  
$
6,877
 
Mineral properties
  
31
   
30
   
62
   
61
 
Corporate
  
36
   
38
   
72
   
75
 
Total depreciation depletion
                
amortization expense
 
$
2,122
  
$
3,651
  
$
5,063
  
$
7,013
 
 
 
     
  
(In thousands)
 
  
June 30,
  
December 31,
 
  
2015
  
2014
 
Assets by segment
    
Oil and gas
 
$
66,291
  
$
92,020
 
Mineral
  
21,944
   
21,942
 
Corporate
  
7,183
   
9,561
 
Total assets
 
$
95,418
  
$
123,523