Well, yes, higher prices cause people to expend more trying to find more oil. Yes, they do. Unfortunately, the cost of anything real today.... If you want anything real, such as a piece of steel or copper—whatever, real—we've had exponential inflation in real things, so the cost of finding these things has gone up almost exponentially. The cost probably rises 15% a year, and you haven't even drilled any more wells, because there has been a lot of inflation. Much as we all like to say there is no inflation, there is incredible inflation in real things.
So it's not easy, necessarily, to say that at 80 bucks or 100 bucks we should find lots of oil. I'm shocked myself that, as I think Mr. Diwan said, it costs 80 bucks in a greenfield site today. A year ago the price was $70. Today we're saying it costs 80 bucks to find something. Well, we know what part of the problem is; it's inflation. Things just get more expensive all the time. These developments are not inexpensive.
So that would be my answer to the question.