Think of oil in the ground like a sponge, after a certain point it doesn't matter how many wells you have to extract it, its only going to "leak out" at a certa

Think of oil in the ground like a sponge, after a certain point it doesn't matter how many wells you have to extract it, its only going to "leak out" at a certain rate that can not be raised. It isn't necessarily trivial to raise production.