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16. Oil and Gas Reserve Data (Tables)

12 Months Ended

Mar. 31, 2015

Extractive Industries [Abstract]

Changes in Proved Reserves:

Changes in Proved Reserves:

	Oil (Bbls)				Natural Gas (Mcf)
Proved Developed and Undeveloped Reserves:
As of April 1, 2012			346,000				8,445,000
Revision of previous estimates			(10,000	)			(589,000	)
Purchase of minerals in place			48,000				71,000
Extensions and discoveries			5,000				318,000
Sales of minerals in place			—				—
Production			(23,000	)			(401,000	)
As of March 31, 2013			366,000				7,844,000
Revision of previous estimates			12,000				(1,404,000	)
Purchase of minerals in place			50,000				18,000
Extensions and discoveries			101,000				163,000
Sales of minerals in place			—				—
Production			(27,000	)			(362,000	)
As of March 31, 2014			502,000				6,259,000
Revision of previous estimates			(90,000	)			(665,000	)
Purchase of minerals in place			43,000				795,000
Extensions and discoveries			235,000				269,000
Sales of minerals in place			—				—
Production			(30,000	)			(369,000	)
As of March 31, 2015			660,000				6,289,000

Summary of Proved Developed and Undeveloped Reserves

Summary of Proved Developed and Undeveloped Reserves as of March 31, 2015, 2014 and 2013:

		Oil (Bbls)				Natural Gas (Mcf)
Proved Developed Reserves:
As of April 1, 2012			194,620				5,359,670
As of March 31, 2013			237,420				4,807,020
As of March 31, 2014			294,620				4,081,470
As of March 31, 2015			283,670				4,584,790

Proved Undeveloped Reserves:
As of April 1, 2012			151,730				3,085,060
As of March 31, 2013			128,290				3,037,180
As of March 31, 2014			206,930				2,177,810
As of March 31, 2015			376,070				1,703,790

Progress of Converting Proved Undeveloped Reserves:


			Oil & Natural Gas (Mcfe)				Future Develepment Costs
PUDs, beginning of year			3,419,362			$	4,620,320
Revision of previous estimates			(943,113	)			(441,475	)
Conversions to PD reserves			(214,890	)			(643,429	)
Additional PUDs added			1,698,873				3,081,986
PUDs, end of year			3,960,232			$	6,617,402

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

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

		March 31
		2015				2014				2013
Future cash inflows		$	72,238,000			$	70,252,000			$	52,900,000
Future production costs and taxes			(19,569,000	)			(20,647,000	)			(14,893,000	)
Future development costs			(6,617,000	)			(4,826,000	)			(4,850,000	)
Future income taxes			(9,254,000	)			(9,801,000	)			(6,374,000	)
Future net cash flows			36,798,000				34,978,000				26,783,000
Annual 10% discount for estimated timing of cash flows			(17,860,000	)			(15,649,000	)			(12,414,000	)
Standardized measure of discounted future net cash flows		$	18,938,000			$	19,329,000			$	14,369,000

Changes in Standardized Measure of Discounted Future Net Cash Flows Relating to Proved Oil and Gas Reserves:

Changes in Standardized Measure of Discounted Future Net Cash Flows Relating to Proved Oil and Gas Reserves:

		March 31
		2015				2014				2013
Sales of oil and gas produced, net of production costs		$	(2,036,000	)		$	(2,762,000	)		$	(1,982,000	)
Net changes in price and production costs			(4,066,000	)			2,464,000				(5,881,000	)
Changes in previously estimated development costs			2,627,000				270,000				1,150,000
Revisions of quantity estimates			(3,718,000	)			(657,000	)			(811,000	)
Net change due to purchases and sales of minerals in place			2,777,000				1,332,000				1,471,000
Extensions and discoveries, less related costs			4,607,000				3,802,000				321,000
Net change in income taxes			654,000				(1,997,000	)			2,178,000
Accretion of discount			2,474,000				1,779,000				2,495,000
Changes in timing of estimated cash flows and other			(3,710,000	)			729,000				(3,928,000	)
Changes in standardized measure			(391,000	)			4,960,000				(4,987,000	)
Standardized measure, beginning of year			19,329,000				14,369,000				19,356,000
Standardized measure, end of year		$	18,938,000			$	19,329,000			$	14,369,000