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Supplemental Oil and Gas Disclosures (Unaudited)
 12 Months Ended
Dec. 31, 2016
Notes to Financial Statements [Abstract]  
Supplemental Oil and Gas Disclosures (Unaudited)
NOTE R — SUPPLEMENTAL OIL AND GAS DISCLOSURES (Unaudited)
 
As part of the Offshore Division activities, Maritech and its subsidiaries previously acquired oil and gas reserves and operated the properties in exchange for assuming the proportionate share of the well abandonment and decommissioning obligations associated with such properties. Accordingly, our Maritech segment is included within our Offshore Division. During 2011 and the first quarter of 2012, Maritech sold substantially all of its oil and gas producing property interests. Maritech's current operations consist primarily of the ongoing abandonment and decommissioning associated with its remaining offshore wells and production platforms. Accordingly, information regarding costs incurred in property acquisition, exploration, and development activities, capitalized costs related to oil and gas producing activities, estimated quantities of oil and gas reserves, and standardized measure of discounted future net cash flows relating to oil and gas reserves have not been presented, as such information is immaterial during each of the three years in the period ended December 31, 2016.
 
Results of Operations for Oil and Gas Producing Activities
 
Results of operations for oil and gas producing activities excludes general and administrative and interest expenses directly related to such activities as well as any allocation of corporate or divisional overhead.
 
 
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
)