I have one other question. I think everybody agrees that no matter whether it's North American refineries, refineries in South America, or wherever, they all use a mix, combinations of different types of crude oil, to make that crude oil flow through their plant as efficiently as possible to reduce their costs.
I know they do that. I know that within the industry there's definitely been all kinds of talk about ways that Canadian crude could be refined to maximize the use within refineries everywhere. With that in mind, what do you think the measurable difference would be in refineries in North America on the east coast if a pipeline were built to the east coast?