Revenue

6 Months Ended

Jun. 30, 2023

Revenue from Contract with Customer [Abstract]

Revenue

7. Revenue

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

	Three Months Ended June 30, 2023
	Natural Gas		Oil		NGL		Total
Marcellus	$	250	$	—	$	—	$	250
Haynesville	256		—		—		256
Eagle Ford	18		104		21		143
Natural gas, oil and NGL revenue	$	524	$	104	$	21	$	649
Marketing revenue	$	188	$	382	$	41	$	611

	Three Months Ended June 30, 2022
	Natural Gas		Oil		NGL		Total
Marcellus	$	1,152	$	—	$	—	$	1,152
Haynesville	988		—		—		988
Eagle Ford	85		503		62		650
Natural gas, oil and NGL revenue	$	2,225	$	503	$	62	$	2,790
Marketing revenue	$	637	$	508	$	78	$	1,223

	Six Months Ended June 30, 2023
	Natural Gas		Oil		NGL		Total
Marcellus	$	867	$	—	$	—	$	867
Haynesville	658		—		—		658
Eagle Ford	41		477		59		577
Natural gas, oil and NGL revenue	$	1,566	$	477	$	59	$	2,102
Marketing revenue	$	516	$	669	$	78	$	1,263

	Six Months Ended June 30, 2022
	Natural Gas		Oil		NGL		Total
Marcellus	$	1,761	$	—	$	—	$	1,761
Haynesville	1,640		—		—		1,640
Eagle Ford	132		953		119		1,204
Powder River Basin	20		66		13		99
Natural gas, oil and NGL revenue	$	3,553	$	1,019	$	132	$	4,704
Marketing revenue	$	1,045	$	903	$	142	$	2,090

Accounts Receivable

Our accounts receivable are primarily from purchasers of natural gas, oil 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 June 30, 2023 and December 31, 2022 are detailed below:

	June 30, 2023		December 31, 2022
Natural gas, oil and NGL sales	$	425	$	1,171
Joint interest	233		246
Other	16		24
Allowance for doubtful accounts	(3)		(3)
Total accounts receivable, net	$	671	$	1,438