Revenue

3 Months Ended

Mar. 31, 2022

Revenue from Contract with Customer [Abstract]

Revenue

9. Revenue

The following table shows revenue disaggregated by operating area and product type:

	Successor
	Three Months Ended March 31, 2022
	Oil		Natural Gas		NGL		Total
Marcellus	$	—	$	609	$	—	$	609
Haynesville	—		652		—		652
Eagle Ford	450		47		57		554
Powder River Basin	66		20		13		99
Oil, natural gas and NGL revenue	$	516	$	1,328	$	70	$	1,914
Marketing revenue	$	395	$	408	$	64	$	867

	Successor
	Period from February 10, 2021 through March 31, 2021
	Oil		Natural Gas		NGL		Total
Marcellus	$	—	$	163	$	—	$	163
Haynesville	—		70		—		70
Eagle Ford	206		43		23		272
Powder River Basin	28		14		6		48
Oil, natural gas and NGL revenue	$	234	$	290	$	29	$	553
Marketing revenue	$	162	$	97	$	18	$	277
	Predecessor
	Period from January 1, 2021 through February 9, 2021
	Oil		Natural Gas		NGL		Total
Marcellus	$	—	$	119	$	—	$	119
Haynesville	—		53		—		53
Eagle Ford	159		17		17		193
Powder River Basin	20		7		6		33
Oil, natural gas and NGL revenue	$	179	$	196	$	23	$	398
Marketing revenue	$	141	$	78	$	20	$	239

Accounts Receivable

Our accounts receivable are primarily from purchasers of oil, natural gas and NGL and from exploration and production companies that own interests in properties we operate. This industry concentration could affect our overall exposure to credit risk, either positively or negatively, because our purchasers and joint working interest owners may be similarly affected by changes in economic, industry or other conditions. We monitor the creditworthiness of all our counterparties and we generally require letters of credit or parent guarantees for receivables from parties deemed to have sub-standard credit, unless the credit risk can otherwise be mitigated. We utilize an allowance method in accounting for bad debt based on historical trends in addition to specifically identifying receivables that we believe may be uncollectible.

Accounts receivable as of March 31, 2022 and December 31, 2021 are detailed below:

	Successor
	March 31, 2022		December 31, 2021
Oil, natural gas and NGL sales	$	1,082	$	922
Joint interest	209		158
Other	95		38
Allowance for doubtful accounts	(3)		(3)
Total accounts receivable, net	$	1,383	$	1,115