Can you give more info? Do you mean that 25% of the U.S refinery capacity will likely be knocked out?
Yes, this could have a huge impact on our already strained fuel prices. They think supertankers will be unable to dock and reach refineries for weeks, if not months on end. Many oil platforms in the Gulf will be capsized and several lost.
If this was happening during the week, the DOW would be tanking big time. Should the devastation reach the hysterical proportions we hear from the press right now, Monday will be a black day for trading. (Not that it is more important than those that lose their lives or homes.)