No. The world price of crude oil determines the cost that a refiner pays for that crude oil and so determines a refiner's cost, and then at the wholesale level it is the world price of gasoline, for example, that sets those rack prices where most retailers buy. I think that's fairly transparent. For example, the chart in my presentation shows each of those components as this builds up.
On August 27th, 2008. See this statement in context.