There is a combo of factors. Most recently, Hurricane...

There is a combo of factors. Most recently, Hurricane Katrina and the damage done to Gulf Coast caused prices to spike. But even prior to Katrina, prices were already higher than last year. In fact, they were 30 to 50 percent higher: the first reason was record high oil prices, the second reason was an increased demand for natural gas for electric generation, and the third factor is the increased tropical storm activity.