Just so you know, it takes more energy to extract oil from the oil sands or oil wells, then the final product (gasoline or whatever), gives off. That goes for almost all modern refineries around the world also. Check it out and you'll be surprised. By the time they explore, bring in the equipment, drill the well, cap it, pump it, then send it down a pipeline, or truck it, build a refinery, then build ships, and then the infrastucture to distribute it, and so on.....
So lets eliminate that one.
I guess i will see what they're made of and then deduct it from there.
Thanxs anyways.