So exactly what do oil companies do with that oil that comes from the ground?
A barrel of oil contains 42 gallons of crude. During the refining process, additives increase the "refined yield" of the barrel. In the end, about 44 gallons of various products are produced from each barrel.
Here is a breakdown of what that oil creates:
22.6 gallons of gasoline — enough to drive 622 miles in the average American car
6.7 gallons of diesel — enough to drive 41.7 miles in a tractor-trailer