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Asset Retirement Obligation (Tables)
 6 Months Ended
Jun. 30, 2019
Asset Retirement Obligation [Abstract]  
Asset Retirement Obligation Transactions



 

 

 



 

 

 

Balance December 31, 2018

 

$

 2,179 

Accretion expense

 

 

 67 

Liabilities incurred

 

 

 —

Liabilities settled

 

 

 (42)

Liabilities relieved - sold properties

 

 

 (55)

Balance June 30, 2019

 

$

 2,149