There are 1.65 trillion barrels of proven oil reserves in the world as of 2016.
The world has proven reserves equivalent to 46.6 times its annual consumption levels. This means it has about 47 years of oil left (at current consumption levels and excluding unproven reserves).
This means that the oil is going to run out in our lifetime
Source/more reading: https://www.worldometers.info/oil/
Update: It is infact not true (or just partially true), because it only considers already known oil reserves that can be pumped out with current technology.
There is more oil that can potentially be used as technology and infrastructure advances, so the estimate of 50 years is wrong.
For the correction thanks to Cephalotrocity@biglemmowski.win (their original comment)
Skeptical of what? That it’s finite? Or how much is left? Or that climate change is real?
Because I’m definitely seeing people who think we have unlimited oil, that there’s always going to be more, and that climate change is not only a hoax but isn’t caused by humans at all. Some of those folks are in this thread, some of those folks I know in real life.
Skeptical of the timeline prediction, you disingenuous git.