DERIVATIVES - DERIVATIVE POSITIONS (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Derivatives measured at fair value
Derivative, Fair Value, Net, Total	$ (101,828)	$ (250)
Commodity \| Commodity contracts – current
Derivatives measured at fair value
Derivative Assets	0	7,482
Commodity \| Commodity contracts – noncurrent
Derivatives measured at fair value
Derivative Assets	0	0
Commodity \| Commodity contracts – current
Derivatives measured at fair value
Derivative Liabilities	(92,784)	(6,402)
Commodity \| Commodity contracts – noncurrent
Derivatives measured at fair value
Derivative Liabilities	$ (9,044)	$ (1,330)

Fair value, before effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes assets elected not to be offset. Excludes assets not subject to a master netting arrangement.

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Fair value, before effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes liabilities elected not to be offset. Excludes liabilities not subject to a master netting arrangement.

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Fair value of the assets less the liabilities of a derivative or group of derivatives.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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