The Collapse of Energy

I guess for our project we have to pick a form of energy and show how it would collapse and make sure that it won't conflict with any of the other futures. Since the group picked oil as energy and chose to either say that we run out of it, or that we lose access to it. I think that the most effect that could happen is if we fully run out of oil. The scenario of losing access isn't really logical for the U.S. since its such a huge power and they would either pay for it to be imported, or fight for it like the most recent war. Even though, a picture of a number of oil wells burning from the war, would be pretty impactful.