The barrel price is based on OIL. Oil prices are based on supply and demand of the product. The demand has not gone up for oil because of the accident.
We are talking about REFINED GASOLINE. The demand for gasoline is fairly stable, with seasonal adjustments. But there is now a supply interruption for parts of South America. That should, ultimately drive up the demand for gasoline that is refined in the USA. I have no idea at what capacity our refineries are running, but if they cannot handle the increased demand then we will have some pricing pressures at our pumps.