Wouldn't happen
Oil and natural gas are always being created. Think of oil as an apple. You want to make apple cider out of this apple, Think of the apple as decomposing matter, and other things in the Earth. To make apple cider, you have to crush the apple, or compacting the Earth. In the Earth this is always happening. When you get the juice from the crushed apple, you have to ferment it. Then it's apple cider, or oil. But... I don't really care as long as you supported McCain.