Asset Retirement Obligation (Tables)

3 Months Ended

Mar. 31, 2022

Asset Retirement Obligation

Reconciliation of changes in asset retirement obligation

The following table is a reconciliation of changes in ARO for the three months ended March 31, 2022 and the year ended December 31, 2021 (in thousands):

	Three Months Ended		Year Ended
	March 31, 2022		December 31, 2021
Asset retirement obligation, beginning balance	$	4,700	$	4,313
Accretion expense		102		387
Asset retirement obligation, ending balance	$	4,802	$	4,700