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Asset Retirement Obligations (Tables)
9 Months Ended
Sep. 30, 2021
Asset Retirement Obligation Disclosure [Abstract]  
Summary of Asset Retirement Obligation Transactions The following table summarizes the Company’s asset retirement obligation transactions recorded during the nine months ended September 30, (in thousands)
 2021
Beginning asset retirement obligations$3,027 
Liabilities incurred103 
Liabilities settled(103)
Acquisitions11,466 
Accretion expense916 
Divestitures(41)
Revision of estimates140 
Ending asset retirement obligations$15,508