The numbers are so very complex, aren't they? A bit of a shell game, I think, Enron style. That way, when anyone askes questions, oil execs can say, basically, "You wouldn't be able to understand because it is so diffult, and you are not smart enough. But these profits we are making right now hurt us more than it hurts you!"The best i can come up with is that we have readily available oil for 120 years, i may be wrong but think that does not include oil shale, but the figures are so complex.