Each of them has a different cost profile. The shale involves projects in which you drill a well and get production very quickly, and the life of it is shorter than that of an oil sands project, which could be 20 years. However, each project is going to be different as well in the oil sands, from mining to in situ, based on the resource and many different parts of the project.
The Saudis have a substantial piece of the market and the ability to move the market, and that is what we're seeing here now.