XML 44 R40.htm IDEA: XBRL DOCUMENT v2.4.0.8
Asset retirement obligation (Details) (USD $)
Dec. 31, 2013
Dec. 31, 2012
Asset retirement obligations    
Asset retirement obligation, $ 2,770 $ 2,702
Acquisition of oil and gas properties 0 0
Revisions in the estimated cash flows 0 0
Liability incurred upon acquiring and drilling wells 0 0
Liability settled upon plugging and abandoning wells 0 0
Accretion of discount expense 0 68
Asset retirement obligation,. $ 2,770 $ 2,770