Oil and Gas Reserves Information (Unaudited) (Tables)

12 Months Ended

Dec. 31, 2015

Extractive Industries [Abstract]

Summary of Changes in Net Quantities of Crude Oil and Natural Gas Reserves For Continuing Operations

Set forth below is a summary of the changes in Comstock’s net quantities of oil and natural gas reserves for its continuing operations for each of the three years in the period ended December 31, 2015:

	2013						2014						2015
	Oil (MBbls)			Natural Gas (MMcf)			Oil (MBbls)			Natural Gas (MMcf)			Oil (MBbls)			Natural Gas (MMcf)
Proved Reserves:
Beginning of year		18,899			437,445			21,976			452,653			20,854			495,266
Revisions of previous estimates		28			23,321			(2,182	)		3,998			(5,096	)		(41,437	)
Extensions and discoveries		5,363			47,581			5,373			78,383			231			168,539
Sales of minerals in place		—			—			—			—			(3,671	)		(5,096	)
Production		(2,314	)		(55,694	)		(4,313	)		(39,768	)		(3,089	)		(47,676	)
End of year		21,976			452,653			20,854			495,266			9,229			569,596
Proved Developed Reserves:
Beginning of year		8,389			362,426			13,914			344,278			16,247			324,598
End of year		13,914			344,278			16,247			324,598			9,229			311,130

Standardized Measure of Discounted Future Net Cash Flows Relating to Proved Reserves

The following table sets forth the standardized measure of discounted future net cash flows relating to proved reserves at December 31, 2014 and 2015:

	2014			2015
	(In thousands)
Cash Flows Relating to Proved Reserves:
Future Cash Flows	$	3,891,953		$	1,763,146
Future Costs:
Production		(1,260,580	)		(705,146	)
Development and Abandonment		(571,200	)		(362,874	)
Future Income Taxes		(192,600	)		(1,231	)
Future Net Cash Flows		1,867,573			693,895
10% Discount Factor		(776,913	)		(321,756	)
Standardized Measure of Discounted Future Net Cash Flows	$	1,090,660		$	372,139

Changes in Standardized Measure of Discounted Future Net Cash Flows Relating to Proved Reserves

The following table sets forth the changes in the standardized measure of discounted future net cash flows relating to proved reserves for the years ended December 31, 2013, 2014 and 2015:

	2013			2014			2015
	(In thousands)
Standardized Measure, Beginning of Year	$	641,325		$	807,217		$	1,090,660
Net change in sales price, net of production costs		43,117			5,911			(751,774	)
Development costs incurred during the year which were previously estimated		187,643			344,590			157,390
Revisions of quantity estimates		48,411			(40,993	)		(111,454	)
Accretion of discount		81,434			105,400			114,427
Changes in future development and abandonment costs		(157,207	)		(10,909	)		14,901
Changes in timing and other		80,348			(19,028	)		(44,439	)
Extensions and discoveries		291,582			163,559			56,216
Sales of minerals in place		—			—			(43,694	)
Sales, net of production costs		(335,677	)		(458,254	)		(163,336	)
Net changes in income taxes		(73,759	)		193,167			53,242
Standardized Measure, End of Year	$	807,217		$	1,090,660		$	372,139