Derivative Financial Instruments Derivative Financial Instruments (Tables)

12 Months Ended

Dec. 31, 2021

Derivative Instruments Not Designated as Hedging Instruments [Abstract]

Schedule of Derivative Instruments, Effect on Other Comprehensive Income (Loss) [Table Text Block]

The following table presents the impact of our derivative instruments on our consolidated statements of operations for the periods presented:

	Year Ended December 31,
Consolidated Statements of Operations Line Item	2021		2020		2019
	(in thousands)
Commodity price risk management gain (loss), net
Net settlements	$	(410,188)	$	279,271	$	(17,598)
Net change in fair value of unsettled derivatives	(291,268)		(99,001)		(145,246)
Total commodity price risk management gain (loss), net	$	(701,456)	$	180,270	$	(162,844)

Schedule of Notional Amounts of Outstanding Derivative Positions [Table Text Block]

As of December 31, 2021, we had the following outstanding derivative contracts. When aggregating multiple contracts, the weighted average contract price is presented:

	Collars					Fixed-Price Swaps
Commodity/ Index/ Maturity Period	Quantity (Crude oil - MBbls Natural Gas - BBtu)	Weighted Average Contract Price				Quantity (Crude Oil - MBbls Gas and Basis- BBtu)	Weighted Average Contract Price		Fair Value December 31, 2021 (in thousands)
		Floors		Ceilings
Crude Oil
NYMEX
2022	5,472	$	53.18	$	67.33	6,744	$	44.42	$	(235,146)
2023	2,775	55.00		70.00		5,502	56.83		(58,299)
2024	225	55.00		75.12		1,500	61.27		(2,276)
Total Crude Oil	8,472					13,746			(295,721)
Natural Gas
NYMEX
2022	35,460	3.14		4.78		33,600	2.70		(41,165)
2023	3,000	3.00		4.42		30,398	2.68		(19,171)
Total Natural Gas	38,460					63,998			(60,336)
Basis Protection - Natural Gas
CIG
2022	—	—		—		69,060	(0.25)		(10,650)
2023	—	—		—		29,438	(0.27)		(638)
Total Basis Protection - Natural Gas	—					98,498			(11,288)
Commodity Derivatives Fair Value									$	(367,345)

Subsequent Commodity Derivative Positions

Subsequent to December 31, 2021, we entered into the following commodity derivative positions covering our crude oil and natural gas production:

	Collars					Fixed-Price Swaps
Commodity/ Index/ Maturity Period	Quantity (Crude oil - MBbls Natural Gas - BBtu)	Weighted Average Contract Price				Quantity (Crude oil - MBbls Natural Gas - BBtu)	Weighted- Average Contract Price
		Floors		Ceilings
Crude Oil - NYMEX
2023	1,050	$	55.00	$	79.14	—	$	—
2024	—	—		—		2,208	70.25
Natural Gas - NYMEX
2023	12,060	3.08		4.35		—	—
Natural Gas Basis Protection - CIG
2023	—	—		—		12,060	(0.29)