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Asset Retirement Obligation (Tables)
 3 Months Ended
Mar. 31, 2019
Asset Retirement Obligation [Abstract]  
Asset Retirement Obligation Transactions



 

 

 



 

 

 

Balance December 31, 2018

 

$

 2,179 

Accretion expense

 

 

 35 

Liabilities incurred

 

 

 —

Liabilities settled

 

 

 —

Balance March 31, 2019

 

$

 2,214