Yes. The amount of oil in the ground changes at different prices. It means that what's important is that if you have $600 oil you'll have a lot more oil. If you have $20 oil you'll have a lot less oil. It costs money to produce oil, and as the prices increase you have access to deeper, smaller, more complicated reservoirs. So it's an economic commodity. There's no price, there's no physical limit that we're reaching, and that's my problem with peak oil.
At different prices you discover more oil. Think about it. When oil companies book reserves, they book reserves at different prices.
I know Mr. Saleri, and he knows what he's talking about. He's been managing the reservoirs for Saudi Aramco, so....