None. The point is not to shut off oil as a energy source instantly before alternatives exist. We should quickly move off of oil as a fuel/energy and build out alternatives as we go (as we are in most parts of the world). Using solar/nuclear/wind for energy does not mean people suddenly start starving. This may surprise you, but your food will be just as nutritious even if it was not delivered to you by burning oil products.

Keep the oil infrastructure for petrochemicals which cannot be easily replaced in the near term.