Good luck with the gambling. Unlike a business that you think is undervalued, oil itself isn't producing a profit, paying out dividends, etc. It's totally dependent on many other forces which I don't think we can predict very accurately.
Electric cars are real and could dramatically reduce demand for oil worldwide. I own 2 electric cars and an electric lawn mower. I don't buy gas. Once people drive electric, they generally can't stand driving an ICE. The big hurdle of range anxiety is about to become a thing of the past. In 2016 and 2017, Nissan, GM, Tesla, and others (I think Ford and Infiniti) are coming out with 200+ mile range vehicles. Nissan's, GM's, and Tesla's cars will be in the ~$20-40k price range after tax credits. Very affordable and primed to go mainstream.