Asian refiners have started pricing their orders for U.S. crude oil against the ICE Brent benchmark instead of the typical pricing on Dubai crude, as the Middle Eastern benchmark has seen wild fluctuations amid choked physical supply from the Persian Gulf. Dubai crude prices soared last week to an all-time high of $169.75 per barrel, and were at $129.99 a barrel early on Friday. These highly volatile prices and the uncertainty about supply from the Middle East have prompted refiners in Asia to seek pricing against Brent, instead of the Dubai benchmark…