oil will retain its value and will never cease as the main source of energy. i think you all reading too much science fiction.
soon we will become a mad max world.a world where mankind and civilisation has degenerated into a bunch of savage warring tribes scattered across a vast desert battling for the last remaining reserves of oil and gasoline in the world.
[video=youtube;UvlIFVgdn1Q]https://www.youtube.com/watch?v=UvlIFVgdn1Q[/video]