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Supplemental Natural Gas Disclosures (Tables)

12 Months Ended

Dec. 31, 2015

Oil And Gas Exploration And Production Industries Disclosures [Abstract]

Capitalized Costs Related to Natural Gas Producing Activities

Capitalized costs related to our oil and gas producing activities are as follows:

Capitalized Costs Relating to

Natural Gas Producing Activities

At December 31, 2015

(In thousands)

Proved natural gas properties

76,277

Accumulated depreciation, depletion and amortization and

valuation allowances

(54,071

)

Net capitalized costs

22,206

Summary of Estimated Quantities of Proved Natural Gas Reserves

Estimated quantities of proved natural gas reserves are summarized as follows:

	Proved			Proved
	Developed			Undeveloped
	Reserves			Reserves
	Natural			Natural
	Gas (MMcf)			Gas (MMcf)
Year-end 2014		27,000			32,193
Revisions of previous estimates		1,549			(24,097	)
Production		(3,742	)		—
Year-end 2015		24,807			8,096

Estimates of Future Cash Flows from Proved Natural Gas Reserves

Estimates of future cash flows from proved natural gas reserves are shown in the following table. Estimated income taxes are calculated by applying the appropriate tax rates to the estimated future pre-tax net cash flows less depreciation of the tax basis of properties and the statutory depletion allowance.

	2015
	(In thousands)
Future cash inflows	$	32,476
Future production and development costs		(11,345	)
Future income tax expenses		—
Future net cash flows		21,131
10% annual discount for estimated timing of cash flows		(9,069	)
Standardized measure of discounted future net cash flows		12,062

Changes in Standardized Measure of Discounted Future Net Cash Flow

Changes in the standardized measure of discounted future net cash flow follows:

	For the Year
	2015
	(In thousands)
Net change in sales prices and production costs	$	(49,562	)
Net change in future development costs		15,563
Sales of natural gas, net of production costs		(10,088	)
Net change due to revisions of quantity estimates		(9,705	)
Accretion of discount		(6,346	)
Net change in income taxes		14,207
Other		3,818
Aggregate change for the year	$	(42,113	)

- Definition

Tabular disclosure of the net quantities of an enterprise's interests in proved developed and undeveloped reserves of (a) crude oil (including condensate and natural gas liquids), (b) natural gas (including coal bed methane), (c) synthetic oil, (d) synthetic gas, and (e) other nonrenewable natural resources that are intended to be upgraded during the period as of the beginning of the period, changes in quantities during the period, and as of the end of the period.

+ References + Details

- Definition

Tabular disclosure of the future net cash flows relating to proved oil and gas reserves and oil and gas subject to purchase under long-term agreements in which the enterprise participates in the operation of the properties on which the oil and gas is located or otherwise serves as the producer. This information is presented in aggregate and for each geographic area for which reserve quantities are disclosed.

+ References + Details