Oil Shale in Indiana?
Fact Sheet: U.S. Oil Shale Resources
http://www.fossil.energy.gov/programs/reserves/npr/Oil_Shale_Resource_Fact_Sheet.pdf
Probably has enough energy content to power Earth's industry at current levels for thousands of years.
Some places where the deposits are exposed there's a rather high incidence of bladder cancer, e.g. Jennings County. There's also a hot pluton in the vicinity of the Jackson/Jennings county line, and if that could be tapped you could probably power America by itself for many centuries.
Big advantage of that pluton is there are no mountains in the area.
The point is we've hardly begun to tap our existing energy resources, and if the Arabs run the price of oil up too high they may find themselves out of business ~ sucking sand so to speak.