• Filing Date: 2017-03-31
  • Form Type: 10-K
  • Description: Annual report
v3.7.0.1
7. Asset Retirement Obligation (Details) - USD ($)
12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Asset Retirement Obligation Disclosure [Abstract]      
Beginning Balance $ 152,827 $ 147,690 $ 150,080
Accretion during the year 5,455 5,137 (2,390)
Ending Balance $ 158,282 $ 152,827 $ 147,690