I would say that is one data point. We would look at a range of different viewpoints and different data points. The one thing we do know is that none of us can predict a spot price for oil at any time in the future.
The one point I would make is that we believe that we've seen the return of volatility. That will make estimating an average price or spot price increasingly difficult. We will see much more volatility than we've seen over the last three or four years; more akin to what we saw before that, which is quite a volatile price.