within the next 10 years the U.S.A is set to become a major exporter of energy resources.
Combined with some infighting among the OPEC cartel, this should work out to be god for the U.S., and bad for the Middle East as their dominance in energy buisness begins to wane. Brazil is poised to blow past Venezuela and Mexico, and Russia essentially has a stranglehold on natural gas supply to Europe. At this point, The Middle East needs to hope that the Chinese economy doesn't slow down, otherwise the price of a barrel of crude is going to take a noticeable beating.
In terms of geopolitical alignments, things are going to get very interesting.