Ok. You are obviously much better informed than I am, and I guess you are quite pessimistic about the total amount of oil that would ever be found. But as prices rise, things which are hopelessly uneconomic become more plausible.
Mind you, I consider this totally the wrong way to go. But when prices rise enough there will be a lot more oil available. But there are lots of reasons that that it only becomes available when the prices rise dramatically. Small fields, difficult access, expensive construction, dangerous conditions, etc. Not to mention continuing CO2 pollution.
We *need* to develop renewable energy resources. I'm not really sure that we should be moving into full scale deployment now...except for cases where there isn't much downside, or whether the technology is already mature. (Hydro comes to mind.) But we need significant investment in developing renewable technologies to the "demonstration project" stage. (I.e., one step past the pilot project.) Some of the investment should continue to be in basic research, but more needs to be invested in moving from research result to useful plant. (Don't take that too literally. Rooftop solar isn't exactly a plant, but it falls within the pervue of what I mean.)