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Derivatives - Fair Value of Derivative Contracts (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Derivatives, Fair Value
Derivative assets	$ 5,286	$ 5,582
Derivative liabilities		(18,467)
Total net derivative contracts	5,286	(12,885)
Derivative contracts - current
Derivatives, Fair Value
Derivative assets	5,286	5,582
Derivative contracts - current
Derivatives, Fair Value
Derivative liabilities		(14,899)
Derivative contracts - noncurrent
Derivatives, Fair Value
Derivative liabilities		(3,568)
Oil price swaps | Derivative contracts - current
Derivatives, Fair Value
Derivative liabilities	0	(14,899)
Oil price swaps | Derivative contracts - noncurrent
Derivatives, Fair Value
Derivative liabilities	0	(3,568)
Natural gas price swaps | Derivative contracts - current
Derivatives, Fair Value
Derivative assets	$ 5,286	$ 5,582

X

- Definition

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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- Definition

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.

+ References

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