Actually gas prices are legitamitely up because of Katrina. A LOT of our oil came from the ports down there that were affects and/or destroyed by Katrina, so they had to find alternative routes to get the oil to the rest of America... this took time and money and made us have a lack of oil so prices went up.

But you're right, a lot of stations WILL raise prices just to gain a larger profit by feeding off crisis that are happening around the world (the tsunami, which didn't affect our oil industry at all.. etc)