It is quite uncertain even after drilling and extraction starts.
I'm from an oil- and gas-producing county in central Kansas. It's been analyzed a thousand ways over the last 70 years. No one will say there's X barrels of oil in the ground. We can't even say for certain how much oil will eventually be extracted (we're still getting oil out of the ground now). But, I can tell you that with millions of dollars in slant bottlebrush drilling, advanced seismic surveys, and tertiary recovery, we're producing about a tenth of what we were in the 50s and 60s when we just poked holes in the ground and oil shot 100 feet in the air. Production keeps going down, year-on-year. I have no reason to believe the planet works particularly differently, on some scale and some timeframe. So, yes, there will be some oil. There will not be continual growth forever on this assuredly finite planet.



