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Supplemental Oil and Gas Disclosures (Unaudited) (Tables)
 12 Months Ended
Dec. 31, 2016
Supplemental Oil and Gas Disclosures (Unaudited) (Tables)  
Results of Operations for Producing Activities Table
 
 
Year Ended December 31,
 
 
2016
 
2015
 
2014
 
 
(In Thousands)
Oil and gas sales revenues
 
$
751

 
$
2,438

 
$
4,722

Production (lifting) costs
 
643

 
921

 
2,002

Depreciation, depletion, and amortization
 
—

 
—

 
30

Excess decommissioning and abandonment costs 
 
2,593

 
2,665

 
73,194

Accretion expense
 
1,362

 
1,375

 
130

Gain on insurance recoveries
 
—

 
—

 
(6
)
Pretax income (loss) from producing activities
 
(3,847
)
 
(2,523
)
 
(70,628
)
Income tax expense (benefit)
 
—

 
—

 
—

Results of oil and gas producing activities
 
$
(3,847
)
 
$
(2,523
)
 
$
(70,628
)