The problem is that there is no such thing as "energy self-sufficiency" in the U.S. without some dramatic changes in government fiscal policy. Unless the U.S. dollar strengthens against other world currencies, we'll likely end up in a situation where U.S. oil reserves are tapped and oil is produced in abundance -- but with increasing amounts of it getting
exported to other countries.
With the U.S. maintaining long-term trade deficits with almost every country in the world, those countries have a lot of U.S. dollars to invest and will likely end up using them to buy our oil.