XML 96 R9.htm IDEA: XBRL DOCUMENT v3.19.3.a.u2
Asset Retirement Obligations
12 Months Ended
Dec. 31, 2019
Asset Retirement Obligation Disclosure [Abstract]  
Asset Retirement Obligations ASSET RETIREMENT OBLIGATIONS
The ARO liability reflects the present value of estimated costs of dismantlement, removal, site reclamation, and similar activities associated with the Partnership’s working interest oil and natural gas properties. The Partnership utilizes current retirement costs to estimate the expected cash outflows for retirement obligations. The Partnership estimates the ultimate productive life of the properties, a credit-adjusted risk-free rate, and an inflation factor in order to determine the current present value of this obligation. To the extent future revisions to these assumptions impact the present value of the existing ARO liability, a corresponding adjustment is made to the oil and natural gas property balance.
The following table describes changes to the Partnership’s ARO liability for the periods presented:
 
 For the year ended December 31,
 20192018
 (in thousands)
Beginning asset retirement obligations$15,475  $14,509  
Liabilities incurred209  245  
Liabilities settled(1,073) (129) 
Accretion expense1,117  1,103  
Revisions in estimated costs976  (16) 
Dispositions(620) (237) 
Ending asset retirement obligations$16,084  $15,475  
Current asset retirement obligations$431  $527  
Non-current asset retirement obligations$15,653  $14,948