how much oil does the world have left
But it's impossible to tell exactly when we will run out of oil, since we can't look into the Earth's mantle to see just how much is left. Â­The oil company BP said that we've got plenty of oil left, according to its Statistical ReviÂ­ew of World Energy published in June 2008. In the report, the company said that the world has as many as 1,238 billion barrels of oil in proved reserves [source: BP]. This equals about 40 years of uninterrupted oil supply -- just from oil pumped from the ground and held in reserve alone.