Heres a very current peak oil speech by Matthew Simmons, recorded oct 27 2006 in boston. Simmons is one of the outspoken peak oil "gurus" ( I think simmons wrote "twilight in the desert ", Minuteman can correct me if I'm wrong on that.28 minutes , good update on the relative oil field reserves best any one can estimate as Saudi is not telling.OSB Matthew Simmons on Peak Oil