I think when you look at the why the Saudis didn't do what they typically do last November, there are a number of a different theories for it. My thinking is that it's in light of the U.S. shale build up that we've seen. Obviously the U.S. isn't oil independent, but they're relying on less oil and their imports are continuing to drop relative to overall consumption.
The Saudis are more sensitive to losing market share elsewhere like in China and onwards. I think they are trying to drive out, even within the OPEC group, some of the higher-cost producers. Their break-even price in Saudi Arabia is somewhere close to $10 a barrel, but their fiscal break-even price is a lot higher because they do have a fairly sizeable spend on the social front in Saudi Arabia. They're living off the earlier surpluses and there's a limit to how long that can take place. I think it's mostly a market share game, and even Saudi Arabia has a limit on how far they can run with that.