Roughly speaking, they seem to be similarly vulnerable. Of course, in each of those fields, you have various break-even points in the price spectrum, so you can't generalize, really.
The fact is that this lower oil price is a product not just of the supply effect, that is, extra supply, but also around a third of the decline, we'd guess, is because there has been an easing off of global demand. Both of those things are contributing in the same direction, and it's why it's so hard to forecast and why we simply choose not to. We choose to adopt a convention and then shock our outlook around that price. Right now, we think we'll get up to $85. That's our analysis.