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Supplemental Oil and Gas Disclosures (Unaudited) (Tables)
 12 Months Ended
Dec. 31, 2015
Supplemental Oil and Gas Disclosures (Unaudited) (Tables)  
Results of Operations for Producing Activities Table
 
 
Year Ended December 31,
 
 
2015
 
2014
 
2013
 
 
(In Thousands)
Oil and gas sales revenues
 
$
2,438

 
$
4,722

 
$
5,560

Production (lifting) costs
 
921

 
2,002

 
2,637

Depreciation, depletion, and amortization
 
—

 
30

 
37

Excess decommissioning and abandonment costs 
 
2,665

 
73,194

 
75,313

Accretion expense
 
1,375

 
130

 
87

Gain on insurance recoveries
 


 
(6
)
 
(5,685
)
Pretax income (loss) from producing activities
 
(2,523
)
 
(70,628
)
 
(66,829
)
Income tax expense (benefit)
 
—

 
—

 
(23,390
)
Results of oil and gas producing activities
 
$
(2,523
)
 
$
(70,628
)
 
$
(43,439
)