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Asset Retirement Obligations (Tables)
 12 Months Ended
Dec. 31, 2016
Asset Retirement Obligation [Abstract]  
Schedule of changes in asset retirement obligation

 

The changes in ARO are as follows for the years ended December 31:

 

 

 

2016

 

 

2015

 

Beginning of period

 

$

3,167

 

 

$

—

 

Liabilities incurred

 

 

—

 

 

 

3,068

 

Revisions

 

 

2,806

 

 

 

—

 

Accretion

 

 

550

 

 

 

99

 

End of period

 

$

6,523

 

 

$

3,167