Quarterly report pursuant to Section 13 or 15(d)

Asset Retirement Obligations

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Asset Retirement Obligations
6 Months Ended
Jun. 30, 2018
Asset Retirement Obligation Disclosure [Abstract]  
Asset Retirement Obligations

6.  Asset Retirement Obligations

Our ARO primarily represents the estimated present value of the amount we will incur to plug, abandon and remediate our producing properties at the end of their productive lives.  

A summary of the changes to our ARO is as follows (in thousands):  

 

Balance, December 31, 2017

$

300,446

 

Liabilities settled

 

(12,124

)

Accretion of discount

 

9,273

 

Liabilities assumed through purchase

 

3,597

 

Revisions of estimated liabilities (1)

 

16,028

 

Balance, June 30, 2018

 

317,220

 

Less current portion

 

27,923

 

Long-term

$

289,297

 

 

 

(1)

Revisions were primarily related to wells that experienced sustained casing pressure issues.  In addition, some properties experienced scope change.