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OIL AND NATURAL GAS PROPERTIES (Details) $ in Thousands | 1 Months Ended | 4 Months Ended | 6 Months Ended | 8 Months Ended | 12 Months Ended
--- | --- | --- | --- | --- | ---
Sep. 30, 2016 USD ($) | Mar. 31, 2016 USD ($) | Dec. 31, 2016 USD ($) | Jun. 30, 2016 USD ($) | Sep. 09, 2016 USD ($) | Dec. 31, 2018 USD ($) $ / MMBTU $ / bbl | Dec. 31, 2017 USD ($) $ / MMBTU $ / bbl | Dec. 31, 2016 $ / MMBTU $ / bbl
Oil and Natural Gas Properties |  |  |  |  |  |  |  |
Subject to depletion |  |  |  |  | $ 1,214,129 | $ 1,470,509 | $ 877,316 |
Not subject to depletion: |  |  |  |  |  |  |  |
Exploration and extension wells in progress |  |  |  |  |  | 23,536 | 5,298 |
Other capital costs: |  |  |  |  |  |  |  |
Incurred in 2018 |  |  |  |  |  | 310,113 |  |
Incurred in 2017 |  |  |  |  |  | 638,269 | 760,488 |
Gross oil and natural gas properties |  |  |  |  | 1,546,244 | 2,442,427 | 1,643,102 |
Less - accumulated depletion |  |  |  |  |  | (639,951) | (570,155) |
Net oil and natural gas properties |  |  |  |  | 1,546,244 | $ 1,802,476 | $ 1,072,947 |
Ceiling Limitation Disclosures |  |  |  |  |  |  |  |
Full cost ceiling impairment | $ 420,900 |  | $ 420,934 |  |  |  |  |
Full cost ceiling impairment, after tax | $ 268,100 |  |  |  |  |  |  |
Predecessor |  |  |  |  |  |  |  |
Oil and Natural Gas Properties |  |  |  |  |  |  |  |
Subject to depletion |  |  |  |  | 7,712,003 |  |  |
Other capital costs: |  |  |  |  |  |  |  |
Gross oil and natural gas properties |  |  |  |  | 8,905,262 |  |  |
Less - accumulated depletion |  |  |  |  | (6,803,231) |  |  |
Net oil and natural gas properties |  |  |  |  | 2,102,031 |  |  |
Ceiling Limitation Disclosures |  |  |  |  |  |  |  |
First day average of the (WTI) crude oil spot price (in dollars per barrel) | $ / bbl |  |  |  |  |  | 65.56 | 51.34 | 42.75
First day average of the Henry Hub natural gas price (in dollars per Mmbtu) | $ / MMBTU |  |  |  |  |  | 3.100 | 2.976 | 2.481
Full cost ceiling impairment |  |  |  | $ 754,800 | 754,769 |  |  |
Full cost ceiling impairment, after tax |  |  |  | $ 478,200 |  |  |  |
Predecessor | Unevaluated Oil and Gas Leaseholds |  |  |  |  |  |  |  |
Other capital costs: |  |  |  |  |  |  |  |
Interest costs capitalized |  |  |  |  | $ 68,200 |  |  |
Predecessor | Tuscaloosa Marine Shale |  |  |  |  |  |  |  |
Other capital costs: |  |  |  |  |  |  |  |
Amount of unevaluated property costs transferred to the full cost pool |  | $ 74,800 |  |  |  |  |  |
Utica areas | Predecessor | Unevaluated Oil and Gas Leaseholds |  |  |  |  |  |  |  |
Other capital costs: |  |  |  |  |  |  |  |
Amount of unevaluated property costs transferred to the full cost pool |  | $ 330,400 |  |  |  |  |  |

X
- Definition The capitalized costs incurred (excluded from amortization), as of the date of the balance sheet, in identifying areas that may warrant examination and in examining specific areas that are considered to have prospects of containing oil and gas reserves, including costs of drilling exploratory wells and exploratory-type stratigraphic test wells and extension of the proved acreage of previously discovered (old) reservoirs through additional drilling in periods after discovery. + References No definition available. + Details
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- Definition Capitalized costs of proved properties incurred for any combination mineral interests acquisitions; wells and related equipment; support equipment and facilities; and uncompleted wells and equipment and other costs not previously disclosed within this table. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 932 -SubTopic 360 -URI http://asc.fasb.org/subtopic&trid=2145654 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 932 -SubTopic 235 -Section 50 -Paragraph 13 -URI http://asc.fasb.org/extlink&oid=68064819&loc=d3e61901-109447 + Details
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