Annual report pursuant to Section 13 and 15(d)

INCOME TAXES (Details 2)

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INCOME TAXES (Details 2) - USD ($)
Dec. 31, 2017
Dec. 31, 2016
Deferred tax liabilities    
Property and equipment $ 27,563,290 $ 10,092,289
Deferred tax assets    
Stock-based compensation 6,667,643 3,814,909
Operating loss and IDC carryforwards 32,127,847 26,329,288
Deferred tax assets 38,795,490 30,144,197
Net deferred income tax asset $ (11,232,200) $ (20,051,908)