You talked a little about the significant decrease in capital investment, which I think is probably driven by the price of oil in the market. It went down by almost the same percentage as your capital investment during the same period.
I'm reading today some reports that this $40, $50, to maybe $55 band is going to set in for the near term, though these are all predictions. What's the ideal capital investment you see to maintain a flourishing and growing industry? What sort of price of oil in the world market would support that?