XML 54 R17.htm IDEA: XBRL DOCUMENT v2.4.1.9
Asset Retirement Obligations
3 Months Ended
Mar. 31, 2015
Asset Retirement Obligation Disclosure [Abstract]  
Asset Retirement Obligations
ASSET RETIREMENT OBLIGATIONS

Energen’s asset retirement obligations (ARO) primarily relate to the future plugging, abandonment and reclamation of wells and facilities. We recognize a liability for the fair value of the ARO in the periods incurred. The ARO fair value liability is determined by calculating the present value of the estimated future cash outflows we expect to incur to plug, abandon and reclaim our producing properties at the end of their productive lives, and is recognized on a discounted basis incorporating an estimate of performance risk specific to Energen. Subsequent to initial measurement, liabilities are accreted to their present value and capitalized costs are depreciated over the estimated useful lives of the related assets. Upon settlement of the liability, Energen may recognize a gain or loss for differences between estimated and actual settlement costs.




The following table reflects the components of the change in Energen’s ARO balance:

(in thousands)
 
Balance as of December 31, 2014
$
94,060

Liabilities incurred
455

Liabilities settled
(262
)
Accretion expense
2,010

Reclassification associated with held for sale properties*
1,052

Balance as of March 31, 2015
$
97,315


*Adjustment to the reclassification of the asset retirement obligation associated with certain San Juan Basin properties included as liabilities related to assets held for sale at December 31, 2014