Comment Re:Seems he has more of a clue (Score 1) 703
All of those resources will last for an infinite amount of time because at some point they'll be too dilute, hence costly, to extract. That metric is meaningless.
What matters is what flow rate you can get out at a cost that's acceptable to the economy, and by that measure we're running out of oil and have so for a couple of years, since we're now scraping the bottle of the barrel with tight oil and tar sand. Now that tight oil is peaking it's probably a matter of a few years until we reach peak total liquids. But by then the statistics will probably lump other fossil fuels in with liquid hydrocarbons so the graph doesn't look lousy, just as they did when they lumped various type of nonconventional oil, NGL and biofuels in with crude and called it all "oil." With the old style of EIA/IEA reporting the peak would be too obvious.