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ASSET RETIREMENT OBLIGATIONS
12 Months Ended
Dec. 31, 2021
ASSET RETIREMENT OBLIGATIONS  
ASSET RETIREMENT OBLIGATIONS

9. ASSET RETIREMENT OBLIGATIONS

The Company records an asset retirement obligation (ARO) on oil and natural gas properties when it can reasonably estimate the fair value of an obligation to perform site reclamation, dismantle facilities or plug and abandon costs. The Company records the ARO liability on the consolidated balance sheets and capitalizes the cost in “Oil and natural gas properties” during the period in which the obligation is incurred. The Company records the accretion of its ARO liabilities in “Depletion, depreciation and accretion” expense in the consolidated statements of operations. The additional capitalized costs are depreciated on a unit-of-production basis.

The Company recorded the following activity related to its ARO liability (inclusive of the current portion) (in thousands):

Liability for asset retirement obligations as of December 31, 2019

$

10,590

Liabilities settled and divested (1)

(1,132)

Additions

488

Accretion expense

585

Revisions in estimated cash flows

52

Liability for asset retirement obligations as of December 31, 2020

$

10,583

Additions

111

Accretion expense

477

Revisions in estimated cash flows

725

Liability for asset retirement obligations as of December 31, 2021

$

11,896

(1)See Note 4, “Divestitures,” for additional information on the Company’s divestiture activities.