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Segment Information (Tables)
6 Months Ended
Jun. 30, 2012
Segment Information [Abstract]  
Summary of result of operations and total assets by segment
As of June 30, 2012, we had two reportable segments: Oil and Gas and Maintenance of Mineral Properties.  A summary of results of operations for the six months ended June 30, 2012, and 2011, and total assets as of June 30, 2012 and December 31, 2011 by segment are as follows:

 
(In thousands)
 
 
(In thousands)
 
 
For the three months ended June 30,
 
 
For the six months ended June 30,
 
 
2012
 
 
2011
 
 
2012
 
 
2011
 
Revenues:
 
 
 
 
 
 
 
 
 
 
 
 
Oil and gas
 
$
8,522
 
 
$
7,025
 
 
$
16,857
 
 
$
13,704
 
Total revenues:
 
 
8,522
 
 
 
7,025
 
 
 
16,857
 
 
 
13,704
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Operating expenses:
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Oil and gas
 
 
7,111
 
 
 
5,075
 
 
 
13,645
 
 
 
11,939
 
Mineral properties
 
 
642
 
 
 
535
 
 
 
1,261
 
 
 
1,007
 
Total operating expenses:
 
 
7,753
 
 
 
5,610
 
 
 
14,906
 
 
 
12,946
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Interest expense
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Oil and gas
 
 
28
 
 
 
20
 
 
 
58
 
 
 
29
 
Mineral properties
 
 
6
 
 
 
9
 
 
 
12
 
 
 
18
 
Total interest expense:
 
 
34
 
 
 
29
 
 
 
70
 
 
 
47
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Operating (loss) income
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Oil and gas
 
$
1,383
 
 
$
1,930
 
 
$
3,154
 
 
$
1,736
 
Mineral properties
 
 
(648
)
 
 
(544
)
 
 
(1,273
)
 
 
(1,025
)
Operating income (loss)
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
from identified segments
 
 
735
 
 
 
1,386
 
 
 
1,881
 
 
 
711
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
General and administrative expenses
 
 
(1,760
)
 
 
(2,138
)
 
 
(3,654
)
 
 
(4,549
)
Add back interest expense
 
 
34
 
 
 
29
 
 
 
70
 
 
 
47
 
Other revenues and expenses:
 
 
1,615
 
 
 
1,143
 
 
 
1,494
 
 
 
(721
)
Loss before income taxes
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
and discontinued operations
 
$
624
 
 
$
420
 
 
$
(209)
 
 
$
(4,512
)
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Depreciation depletion and amortization expense:
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Oil and gas
 
$
4,030
 
 
$
3,120
 
 
$
7,671
 
 
$
5,905
 
Mineral properties
 
 
32
 
 
 
25
 
 
 
64
 
 
 
51
 
Corporate
 
 
120
 
 
 
124
 
 
 
245
 
 
 
250
 
Total depreciation expense
 
$
4,182
 
 
$
3,269
 
 
$
7,980
 
 
$
6,206
 
 
 
(In thousands)
 
 
June 30,
 
 
December 31,
 
 
2012
 
 
2011
 
Assets by segment
 
 
 
 
 
 
Oil and Gas
 
$
94,311
 
 
$
109,141
 
Mineral
 
 
20,754
 
 
 
20,755
 
Corporate
 
 
32,217
 
 
 
32,543
 
Total assets
 
$
147,283
 
 
$
162,439