Derivative Financial Instruments (Tables)

6 Months Ended

Jun. 30, 2021

Notes Tables

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

		Average
	Instrument	Daily	Total	Weighted		Weighted		Weighted
Period	Type	Volumes	Volumes	Strike Price		Put Price		Call Price
Crude Oil - WTI (NYMEX)		(Bbls)(1)	(Bbls)(1)		($/Bbl)(1)		($/Bbl)(1)		($/Bbl)(1)
Jul 2021 - Dec 2021	swap	4,000	736,000	$	42.06	$	—	$	—
Jul 2021 - Dec 2021	collar	200	36,800	$	—	$	40.00	$	54.90
Jul 2021 - Feb 2022	collar	2,024	491,733	$	—	$	38.81	$	57.24
Jan 2022 - Feb 2022	swap	3,000	177,000	$	42.98	$	—	$	—
Mar 2022 - May 2022	swap	2,044	188,006	$	42.33	$	—	$	—
Mar 2022 - May 2022	collar	2,000	184,000	$	—	$	35.00	$	48.50
Mar 2022 - Sept 2022	swap	1,615	345,638	$	54.53	$	—	$	—
Mar 2022 - Sept 2022	collar	1,615	345,638	$	—	$	45.00	$	62.50
Oct 2022	swap	2,172	67,332	$	58.50	$	—		—
Oct 2022	collar	2,172	67,332	$	—	$	46.00		66.50
Nov 2022	swap	2,176	65,280	$	58.25	$	—		—
Nov 2022	collar	2,176	65,280	$	—	$	46.00		66.30
Natural Gas - Henry Hub (NYMEX)		(MMbtu)(2)	(MMbtu)(2)		($/MMbtu)(2)		($/MMbtu)(2)		($/MMbtu)(2)
Jul 2021 - Dec 2021	collar	30,000	5,520,000	$	—	$	2.18	$	3.00
Jul 2021 - Dec 2021	swap	10,000	1,840,000	$	2.62	$	—	$	—
Jul 2021 - Dec 2021	call	40,000	7,360,000	$	—	$	—	$	3.50
Jul 2021 - Dec 2022	collar	40,000	21,960,000	$	—	$	1.83	$	3.00
Jul 2021 - Dec 2022	call	40,000	21,960,000	$	—	$	—	$	3.00
Jan 2022 - Feb 2022	collar	30,000	1,830,000	$	—	$	2.20	$	4.50
Jan 2022 - Dec 2022	call	37,000	13,505,000	$	—	$	—	$	3.50
Jan 2022	swap	20,000	620,000	$	2.79	$	—	$	—
Feb 2022	swap	30,000	840,000	$	2.79	$	—	$	—
Mar 2022 - May 2022	collar	10,000	920,000	$	—	$	2.25	$	3.40
Mar 2022 - May 2022	swap	10,544	970,075	$	2.69	$	—	$	—
Apr 2022 - Sept 2022	swap	12,428	2,274,311	$	2.44	$	—	$	—
Oct 2022	swap	16,129	499,999	$	2.56	$	—	$	—
Nov 2022	swap	17,570	527,100	$	2.63	$	—	$	—
Jan 2023 - Dec 2023	call	70,000	25,550,000	$	—	$	—	$	3.50
Jul 2021 - Mar 2025 (3)	swap	72,920	99,900,000	$	2.63	$	—	$	—
Apr 2025 - Apr 2028 (3)	put	55,684	62,700,000	$	—	$	2.35	$	—

(1) Bbls = Barrels

(2) MMbtu = Million British Thermal Units

(3) These contracts were entered into by the Company’s wholly owned subsidiary, A-I LLC, in conjunction with the Mobile Bay Transaction (see Note 4 Mobile Bay Transaction).

Schedule of Derivatives Instruments Statements of Financial Performance and Financial Position, Location [Table Text Block]

	June 30,		December 31,
	2021		2020
Prepaid expenses and other current assets	$	14,021	$	2,752
Other assets (long-term)		21,005		2,762
Accrued liabilities		82,832		13,620
Other liabilities (long-term)		28,122		4,384

	Three Months Ended June 30,				Six Months Ended June 30,
	2021		2020		2021		2020
Realized loss (gain)	$	15,357	$	(22,578)	$	23,602	$	(31,970)
Unrealized loss (gain)		66,083		37,992		82,418		(14,528)
Derivative loss (gain)	$	81,440	$	15,414	$	106,020	$	(46,498)

Schedule of Cash Receipts and Payments on Commodity Derivative Contract Settlements [Table Text Block]

	Six Months Ended June 30,
	2021		2020
Derivative loss (gain)	$	106,020	$	(46,498)
Derivative cash (payments) receipts, net		(41,130)		37,566