A financial windfall brought on by rising energy prices has emboldened several oil-rich nations to challenge U.S. foreign policy and given them more leverage with U.S. allies that rely on oil imports.
Challenges are coming from an increasingly assertive Venezuela and Iran and a Russia no longer dependent on Western handouts. "Oil is the new currency of foreign policy," says Senate Foreign Relations Committee Chairman Richard Lugar, R-Ind. Iran and Venezuela are "not only less cooperative but almost gleeful that they are able to make trouble for us," Lugar says. "These are huge changes that have not been comprehended by most of the U.S. public."
Oil prices have been driven up by rising global demand, particularly in China and India. The USA remains the world's biggest importer and consumer. It imports more than 12 million barrels of oil a day and uses more than 20 million barrels a day, or 14% of the global supply, the Department of Energy says.
U.S. concerns have focused on three nations:
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