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Property and Equipment - Summary of Property and Equipment (Details) - USD ($) | Jun. 30, 2017 | Jun. 30, 2016
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Oil and natural gas properties |  |
Property costs subject to amortization | $ 84,962,933 | $ 77,408,353
Less: Accumulated depreciation, depletion, and amortization | (23,172,865) | (17,437,890)
Unproved properties not subject to amortization | 0 | 0
Oil and natural gas properties, net | 61,790,068 | 59,970,463
Other property and equipment |  |
Furniture, fixtures, office equipment and other, at cost | 135,377 | 235,752
Less: Accumulated depreciation | (94,688) | (207,103)
Other property and equipment, net | $ 40,689 | $ 28,649

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- Definition The sum of the capitalized costs incurred, as of the balance sheet date, of unproved properties excluded from amortization including acquisition costs, exploration costs, development costs, and production costs. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 932 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-10.(c)(7)(ii)) -URI http://asc.fasb.org/extlink&oid=82851474&loc=d3e511914-122862 + Details
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