Accounts Receivable (Tables)

12 Months Ended

Dec. 31, 2021

Receivables [Abstract]

Summary of Accounts Receivable

A summary of accounts receivable is as follows (in thousands):

	December 31,
	2021		2020
Oil, natural gas and NGL sales	$	18,829	$	12,757
Joint interest billing	3,441		6,421
Other	1,262		4,754
Total accounts receivable	23,532		23,932
Less: allowance for doubtful accounts	(2,027)		(4,356)
Total accounts receivable, net	$	21,505	$	19,576

Balance and Activity in Allowance for Doubtful Accounts

The following table presents the balance and activity in the allowance for doubtful accounts for the years ended December 31, 2021 and 2020 (in thousands):

	Year Ended December 31,
	2021		2020
Beginning balance	$	4,356	$	1,117
Additions charged to costs and expenses (1)	21		3,239
Deductions (2)	(2,350)		—
Ending balance	$	2,027	$	4,356

____________________

(1)The Company performed an assessment of receivable balances related to governmental and other regulatory items during the year ended December 31, 2020, and recorded a $2.5 million allowance that is non-recurring in nature. The assessment was almost entirely reversed in the amount of $2.4 million during the second half of 2021.

(2)Deductions represent collections of amounts for which an allowance had previously been established.