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Oil and Gas Reserve Data (Unaudited) - Schedule of Changes in Proved Reserves (Details)
 12 Months Ended
Mar. 31, 2021
bbl
Mcf
Mar. 31, 2020
bbl
Mcf
Oil [Member]    
Proved Developed and Undeveloped Reserves Beginning Period | bbl 1,008,000 1,040,000
Revision of previous estimates | bbl (292,000) (72,000)
Purchase of minerals in place | bbl
Extensions and discoveries | bbl 92,000 90,000
Sales of minerals in place | bbl (20,000) (6,000)
Production | bbl (50,000) (44,000)
Proved Developed and Undeveloped Reserves Ending period | bbl 738,000 1,008,000
Natural Gas [Member]    
Proved Developed and Undeveloped Reserves Beginning Period | Mcf 4,850,000 5,381,000
Revision of previous estimates | Mcf (200,000) (384,000)
Purchase of minerals in place | Mcf
Extensions and discoveries | Mcf 283,000 175,000
Sales of minerals in place | Mcf (14,000) (28,000)
Production | Mcf (324,000) (294,000)
Proved Developed and Undeveloped Reserves Ending period | Mcf 4,595,000 4,850,000