Ok, I have been trying to get an answer to this question everywhere ... maybe someone here can answer it. When a barrel of crude is fractioned, Wiki states: A 42 gallon barrel (U.S.) of crude oil produces approximately 10 gallons of diesel, 4 gallons of jet fuel, 19 gallons of gasoline, 7 gallons of other products, 3 gallons split between heavy fuel oil and liquified petroleum gases, and 2 gallons of heating oil. If we reduce global consumption of gasoline by say, 200,000,000 gallons, what happens to that gasoline? A. It is still refined from the barrel and just accumulates into a massive glut. B. The same oil that was distilled to make gasoline is refined to make another product, like kerosene, petro-diesel, etc. i.e. The above numbers ... do they represent what happens to BE refined? Or are they distinct (percentage) layers in a "barrel" that can and cannot be used for various products based on its chemical makeup, weight, etc. Thanks!