I think the price impact is determined by a whole pile of different factors. I certainly would remind you that, number one, about 80% of the price at the pump is reflected in the price of crude and taxes, so what we're now talking about is a relatively small amount. As you look at past price trends over the last 15 to 20 years, at higher levels of utilization margins do go up, and at lower levels of utilization the refinery margins do go down. But the actual gap in the difference is fairly insignificant.
