Probably continue to increase. The supply is only going down, and more alternatives are being made available. Like in the UK the government subsidises the purchase of electric cars. The price will probably fluctuate but continue to increase. There will always be a massive demand for petrol, and as the supplies dwindle companies will be able to charge more and more because people will always pay up. It's a necessity so people will buy it whatever the price. I kinda repeated myself, but I generally feel that the price will go up
So what do you think that what will happen to the price of gasoline next ten years ?