Supplemental Oil And Gas Information (Tables)

12 Months Ended

Dec. 31, 2016

Supplemental Oil And Gas Information [Abstract]

Schedule Of Capitalized Costs Related To Oil And Gas Producing Activities

	Years Ended December 31,
	2016		2015
Proved oil and gas properties	$	5,315	$	8,286
Unproved properties		106		552
Total proved and unproved oil and gas properties	$	5,421	$	8,838
Less accumulated depreciation, depletion and amortization		(196)		—
Net oil and gas properties	$	5,225	$	8,838

Schedule Of Oil And Gas Property Acquisition, Exploration And Development

	Years Ended December 31,
	2016		2015		2014
Property acquisitions proved	$	—	$	—	$	—
Property acquisitions unproved		8		90		598
Exploration cost		396		22		2,367
Development cost		—		252		864
Total	$	404	$	364	$	3,829

Schedule Of Results Of Operations From Oil And Gas Producing Activities

	Years Ended December 31,
	2016		2015		2014
Revenues	$	4,113	$	5,631	$	13,260
Production costs and taxes		(3,064)		(3,360)		(4,876)
Depreciation, depletion and amortization		(1,009)		(2,538)		(2,766)
Impairment		(2,805)		(14,526)		—
Income (loss) from oil and gas producing activities	$	(2,765)	$	(14,793)	$	5,618

Schedule Of Net Proved Oil And Gas Reserves And The Changes In Net Proved Oil And Gas Reserves

	Oil (MBbl)	Gas (MMcf)	MBOE
Proved reserves at December 31, 2013	2,040	—	2,040
Revisions of previous estimates	(253)	—	(253)
Improved recovery	—	—	—
Purchase of reserves in place	—	—	—
Extensions and discoveries	164	—	164
Production	(154)	—	(154)
Sales of reserves in place	—	—	—
Proved reserves at December 31, 2014	1,797	—	1,797
Revisions of previous estimates	(790)	—	(790)
Improved recovery	—	—	—
Purchase of reserves in place	—	—	—
Extensions and discoveries	1	—	1
Production	(131)	—	(131)
Sales of reserves in place	—	—	—
Proved reserves at December 31, 2015	877	—	877
Revisions of previous estimates	(36)	—	(36)
Improved recovery	—	—	—
Purchase of reserves in place	—	—	—
Extensions and discoveries	3	—	3
Production	(108)	—	(108)
Sales of reserves in place	(6)	—	(6)
Proved reserves at December 31, 2016	730	—	730
Proved developed reserves at:
December 31, 2013	1,575	—	1,575
December 31, 2014	1,438	—	1,438
December 31, 2015	877	—	877
December 31, 2016	730	—	730
Proved undeveloped reserves at:
December 31, 2013	465	—	465
December 31, 2014	359	—	359
December 31, 2015	—	—	—
December 31, 2016	—	—	—

Schedule Of Reserve Value By Category And The Respective Present Values, Before Income Taxes, Discounted At 10% As A Percentage Of Total Proved Reserves

	Year Ended 12/31/2016						Year Ended 12/31/2015						Year Ended 12/31/2014
	Oil		Gas		Total		Oil		Gas		Total		Oil		Gas		Total
Total proved reserves    year-end reserve    report	$	5,815		—	$	5,815	$	8,287		—	$	8,287	$	40,417		—	$	40,417
Proved developed    producing reserves    (PDP)	$	5,397		—	$	5,397	$	7,686		—	$	7,686	$	32,059		—	$	32,059
% of PDP reserves to    total proved reserves		93%		—		93%		93%		—		93%		79%		—		79%
Proved developed non-    producing reserves	$	418		—	$	418	$	601		—	$	601	$	2,956		—	$	2,956
% of PDNP reserves to    total proved reserves		7%		—		7%		7%		—		7%		7%		—		7%
Proved undeveloped    reserves (PUD)	$	—		—	$	—	$	—		—	$	—	$	5,402		—	$	5,402
% of PUD reserves to    total proved reserves		—		—		—		—		—		—		14%		—		14%

Schedule Of Standardized Measure Of Discounted Futures Net Cash Flows From Proved Oil And Gas Reserves

	Years Ended December 31,
	2016		2015		2014
Future cash inflows	$	27,253	$	38,566	$	158,792
Future production costs and taxes		(16,270)		(23,500)		(71,951)
Future development costs		(553)		(951)		(10,014)
Future income tax expenses		—		—		(13,092)
Future net cash flows		10,430		14,115		63,735
Discount at 10% for timing of cash flows		(4,615)		(5,828)		(29,204)
Standardized measure of discounted future net cash flows	$	5,815	$	8,287	$	34,531

Schedule Of Changes In The Standardized Measure Of Discounted Future Net Cash Flows From Proved Oil And Gas Reserves

	Years Ended December 31,
	2016		2015		2014
Balance, beginning of year	$	8,287	$	34,531	$	38,708
Sales, net of production costs and taxes		(2,037)		(1,901)		(8,385)
Discoveries and extensions, net of costs		35		5		4,231
Purchase of reserves in place		—		—		—
Sale of reserves in place		(10)		—		—
Net changes in prices and production costs		(863)		(16,009)		(829)
Revisions of quantity estimates		(412)		(22,431)		(6,610)
Previously estimated development cost incurred during the year		—		—		508
Changes in future development costs		196		4,890		(1,913)
Changes in timing and other		(20)		(56)		1,312
Accretion of discount		639		3,373		4,247
Net change in income taxes		—		5,885		3,262
Balance, end of year	$	5,815	$	8,287	$	34,531