# How Many Gallons in a Barrel of Oil?

A barrel is amongst the numerous units of volume and there are fluid barrels, dry barrels and oil barrels. In one barrel of oil there are 35 imperial gallons which is also equivalent to 159 litres.
The standard oil barrel of 42 US gallons (159 L) is used in the United States as a measure of crude oil.
The standard oil barrel of 42 US gallons (159 L) is used in the United States as a measure of crude oil.
One barrel of oil contains 46.4 gallon of gas
One barrel of oil holds 42 gallons of crude oil. Once it goes through the refining process we are left with about 19 or 20 gallons of gasoline. You can find more information here: http://en.wikipedia.org/wiki/Barrel_(volume)
Q&A Related to "How Many Gallons in a Barrel of Oil"
 It is interesting to note that most other countries use the metric system, but due to the consumption of oil by the United States, they all have chosen to use our system of measure http://answers.ask.com/Reference/Other/how_many_ga...