I think that's because, number one, it's much easier and more effective and more efficient and less costly to export and import crude than it is to move refined product. The costs of moving refined product are higher than the costs of moving crude because of the quality standards initially that need to be maintained. With regard to the ability to respond more quickly to changing patterns, whether we're talking about seasonal demand patterns or demand over a longer term, it's easier to do that when you're supplying a market that's close.
Today the dynamics are shifting. Being closer to market is not so important anymore. It's still important, but it's not as dominant as it used to be. I think that's in part because we've seen continuing growth in the size of refineries. Refineries that do have tidewater access are actually able to access transportation through large VLCCs or potentially even ultra large crude carriers and use those to ship product at a price and a cost that can begin to make them competitive in the market. As a result, from the Canadian perspective, we're now seeing the people we compete with for our own domestic market expanding beyond their traditional competitors in the U.S. to competitors as far away as Asia that are building massive refineries, where there are lower labour costs and environmental standards that may impose less of a cost burden. The ability to ship large quantities at a relatively low cost is now making them competitive in the North American market. So being close to market isn't the only factor any more.