ORGANIZATION AND SIGNIFICANT ACCOUNTING POLICIES - Oil and Gas Property (Details) $ in Millions	12 Months Ended
Jun. 30, 2017 USD ($) bbl	Jun. 30, 2016 USD ($) bbl
Oil and Gas Properties
Average period over which oil and natural gas price is based to derive future net revenue	12 months
Discount percentage	10.00%
Proved reserves \| bbl	0	0
Amortization of proved oil and gas properties subject to the full-cost ceiling test \| $	$ 13.3	$ 14.3

Represents the average period over which oil and natural gas price is based to derive future net revenue.

No definition available.

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- Definition

Represents the amortization of proved oil and gas properties during the period subject to the full-cost ceiling test.

+ References

No definition available.

+ Details

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- Definition

Represents the percentage by which period-end prices of future development and abandonment costs of wells to be drilled are discounted in determining the limit of the unamortized cost of oil and natural gas properties (Full-Cost Ceiling Test).

+ References

No definition available.

+ Details

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- References

No definition available.

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- Definition

The net quantity of proved reserves as of the balance sheet date. Proved oil reserves are the estimated quantities of crude oil and natural gas liquids which geological and engineering data demonstrate with reasonable certainty to be recoverable.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 932
-SubTopic 235
-Section 50
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=68064819&loc=d3e61831-109447

Reference 2: 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.(a)(2))
-URI http://asc.fasb.org/extlink&oid=50486907&loc=d3e511914-122862

+ Details

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