I would also be interested in learning where you got this information.

As far as I understand it, global reserves of petroleum are sufficient to last us through 200+ more years, even with extrapolations from increased usage (we use more every year, extend the trend, you still get 200 years of oil).

I think the common misperception about oil abundance stems from the economics of extraction. Oil wells get shut down all the time when they stop being productive. This does not mean the oil field the well is tapping has been drained dry. On the contrary, I think most oil wells get shut off when the field drops to 60% remaining. The cost of oil determines how much is extracted. Extracting oil requires the input of various factors (energy, typically electricity to run pumps, liquid mud to pump down to get the oil up, etc), all of which cost money. If you can sell your oil for more, it becomes economically feasible to extract more from previously "empty" fields.

However, I agree with you that nuclear energy generation is the way to go. Not because of any lack of oil, but because nuclear is so much cleaner - especially if anybody ever cracks the fusion problem.