I'll come back to Mr. Marshall on that point.
The companies that are integrated in Canada, that actually do upgrading and refining, don't suffer from the differential. Economists very clearly indicate that when we're talking about the differential, it applies to the export of raw product. Companies like Suncor and Husky actually benefit from it.
This is a long-standing debate that we'll have at the finance committee. I think we would all agree that we need to have a serious debate. Companies that are integrated and have the jobs in Canada do the upgrading here; they do the refining here. I'm a former refinery worker, so I know this full well. They benefit from the differential; they don't suffer from it.
That will be my final point, Mr. Chair. You've given me more time than I normally get.