Oil and Gas Reserve Data (Unaudited) - Schedule of Changes in Proved Reserves (Details)	12 Months Ended
	Mar. 31, 2017 Mcf bbl MMBbls	Mar. 31, 2016 Mcf bbl	Mar. 31, 2015 Mcf bbl
Revision of previous estimates | MMBbls	122,762
Oil [Member]
Proved Developed and Undeveloped Reserves Beginning Period | bbl	1,084,000	660,000	502,000
Revision of previous estimates | bbl	205,000	(13,000)	(90,000)
Purchase of minerals in place | bbl			43,000
Extensions and discoveries | bbl	962,000	479,000	235,000
Sales of minerals in place | bbl	(92,000)	(3,000)
Production | bbl	(35,000)	(39,000)	(30,000)
Developed and Undeveloped Reserves Ending period | bbl	2,124,000	1,084,000	660,000
Natural Gas [Member]
Proved Developed and Undeveloped Reserves Beginning Period | Mcf	5,801,000	6,289,000	6,259,000
Revision of previous estimates | Mcf	946,000	(736,000)	(665,000)
Purchase of minerals in place | Mcf			795,000
Extensions and discoveries | Mcf	1,380,000	665,000	269,000
Sales of minerals in place | Mcf	(1,090,000)	(9,000)
Production | Mcf	(356,000)	(408,000)	(369,000)
Developed and Undeveloped Reserves Ending period | Mcf	6,681,000	5,801,000	6,289,000