From the Post ...

A U.S. military strike against Iran would have dire consequences in petroleum markets, say a variety of oil industry experts, many of whom think the prospect of pandemonium in those markets makes U.S. military action unlikely despite escalating economic sanctions imposed by the Bush administration.

The small amount of excess oil production capacity worldwide would provide an insufficient cushion if armed conflict disrupted supplies, oil experts say, and petroleum prices would skyrocket. Moreover, a wounded or angry Iran could easily retaliate against oil facilities from southern Iraq to the Strait of Hormuz.