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OIL AND NATURAL GAS PROPERTIES (Details) $ in Thousands |  | 3 Months Ended | 6 Months Ended | 12 Months Ended
--- | --- | --- | --- | ---
Sep. 07, 2017 USD ($) subsidiary | Mar. 31, 2019 USD ($) | Jun. 30, 2018 USD ($) | Jun. 30, 2019 USD ($) $ / MMBTU $ / bbl | Jun. 30, 2018 USD ($) $ / MMBTU $ / bbl | Dec. 31, 2017 USD ($)
Ceiling Limitation Disclosures |  |  |  |  |  |
First day average of the (WTI) crude oil spot price (in dollars per barrel) | $ / bbl |  |  |  | 61.45 | 57.67 |
First day average of the Henry Hub natural gas price (in dollars per Mmbtu) | $ / MMBTU |  |  |  | 3.018 | 2.92 |
Book value of oil and natural gas properties exceeding ceiling limit |  |  |  | $ 664,400 |  |
Amount of unevaluated property costs transferred to the full cost pool |  | $ 51,000 |  | $ 481,700 |  |
Percentage of ownership interest sold | 100.00% |  |  |  |  |
No of subsidiaries whose ownership interest sold | subsidiary | 2 |  |  |  |  |
Adjusted sale price | $ 1,390,000 |  |  |  |  |
Gain (loss) from sale of other operating property and equipment |  |  | $ (2,225) |  | $ (5,904) | $ 485,900
Full cost ceiling impairment, before tax |  | $ 275,200 |  |  |  |

X
- Definition The amount of increase in the book value of oil and natural gas properties exceeding the ceiling limit. + References No definition available. + Details
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- Definition Represents the before-tax expense recorded to reduce the value of oil and gas assets consisting of proved properties and unproved properties as the estimate of future successful production from these properties is reduced. + References No definition available. + Details
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- Definition It represents the information about number of subsidiary, ownership interest sold. + References No definition available. + Details
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- Definition Represents the per unit first day average of the Henry Hub natural gas price for the twelve months ended as of the reporting date. + References No definition available. + Details
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- Definition Represents the per unit first day average of the West Texas Intermediate (WTI) crude oil spot price. + References No definition available. + Details
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- Definition Represents the amount of unevaluated property costs transferred to the full cost pool. + References No definition available. + Details
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- Definition It represents the Percentage of ownership interest sold. + References No definition available. + Details
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- Definition Amount of gain (loss) on sale or disposal of proven and unproven oil and gas properties. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3602-108585 + Details
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- Definition The cash inflow associated with the deconsolidation of a previously consolidated subsidiary or sale of an entity that is related to it but not strictly controlled. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 12 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3179-108585 + Details
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