Yes. Yes they do. And a U.S. government down the line will need to make a very tough decision about invading one or both of those nations in order to take their oil. The OPEC nations have the power in this situation, and once Iran is nuclear, which will happen, then the U.S. might actually have to start thinking about its future energy plans on a far more serious level.

There is also the fact that there are converters for vegetable oil to be used as a fuel source. This would be a good source of fuel because as you already probably know most restaurants give it away for free.