I would say that since many individual countries have peaked (America, Norway, Venezuela, UK, Indonesia etc.), many individual oil majors have peaked (Chevron, Exxon, Shell, Total
) and that individual grades of oil have peaked (Light sweet crude
) a global peak in all oil grades can't be far away.
Here are two completely different approaches
to the question of when peak oil will occur, both returning the same result.
My personal opinion is that the geological peak in crude extraction will be a long drawn out bumpy affair limited by logistics and infrastructure running from around about now through to 2010 when significant decline will set it.
P.S. I've also dropped this reply in your other thread, I expect the mods will merge the two in due course.