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Asset Retirement Obligations (Tables)
9 Months Ended
Sep. 30, 2019
Asset Retirement Obligation Disclosure [Abstract]  
Information Related to Asset Retirement Obligations The following table reflects information related to our asset retirement obligations:

 

Balance at December 31, 2018

 

$

222,989

 

Additions to asset retirement obligations

 

 

2,410

 

Accretion expense

 

 

3,159

 

Liabilities settled

 

 

(2,724

)

Balance at September 30, 2019

 

$

225,834