How much energy does it take to produce a gallon of gasoline?

Question by BJS: How much energy does it take to produce a gallon of gasoline?
Per gallon of gasoline I wanted to know what the approx. break down is of “energy” to produce (refine) per gallon of energy. Perhaps a breakdown of items. This would include ‘diesel’ for ships to transport oil, trucks, ‘electricity’, ‘natural gas’, etc. at the refinery.
Electric, in Watts or $
Natrual gas in BTU or $
Diesel in Gallons or $
Others in ? or $

Best answer:

Answer by Roman Soldier
It’s hard to determine. I don’t think oil refineries publish their monthly electric bills.

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