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Fresh Start Accounting - Fresh Start Adjustments (Details) $ in Millions	Nov. 19, 2020 USD ($)
Fresh-Start Adjustment [Line Items]
Deferred financing cost adjustment related to infrastructure costs	$ 8.1
Deferred financing costs adjustment related to finance lease right-of-use assets	$ 0.1
Asset retirement obligations, fair value measurements, inflation rate	2.00%
Asset retirement obligations, fair value assumptions, risk free rate	8.50%
Derivative instrument, fair value measurements, risk free rate	5.12%
Oasis Midstream Partners Credit Facility
Fresh-Start Adjustment [Line Items]
Deferred financing costs	$ 1.5
Minimum
Fresh-Start Adjustment [Line Items]
Debt stated interest rate (percent)	3.06%
Maximum
Fresh-Start Adjustment [Line Items]
Debt stated interest rate (percent)	6.58%
Equipment Inventory
Fresh-Start Adjustment [Line Items]
Fair value adjustments	$ 0.5
Long term Linefill Inventory
Fresh-Start Adjustment [Line Items]
Fair value adjustments	0.4
Crude oil
Fresh-Start Adjustment [Line Items]
Fair value adjustments	$ 1.6

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Contractual interest rate for funds borrowed, under the debt agreement.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22(a)(1))
-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

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