By the end of this century, it is expected that crude oil will be over. Newspaper will miss out of the headlines on petrol price hike. No oil spillage in oceans, no loss of marine bio diversity. Artifact collectors would save a gallon of oil as souvenir of crude oil era. School essays wouldn’t have petro products as reason for global warming. But will life stop if crude oil is over?  Humans have shifted from wood to coal, coal to oil, and oil to gas. This shift was due to better performance, efficiency and feasibility of the new fuel. In simple words new fuel were better than the previous one.