It's also important to remember that whatever overspend has...

It's also important to remember that whatever overspend has happened to date, those costs are all now sunk costs and they shouldn't affect the valuation of the company now, which should be based on the NPV of rest of life net cashflows. So we need to hope that lessons have been learned from this cost side of things, and I'm sure they have by management. Ultimately we still have a 100% success rate on discoveries and whatever has been spent to achieve that is a sunk cost and need to draw a line in the sand for it.