Barrel of Oil Equivalent

A unit of energy equal to the amount of energy contained in a barrel of crude oil. Approximately 5.78 million BTU or 1,700 kWh?. One barrel = 5.6 cubic feet or .159 cubic meters; for crude oil, one barrel is about .136 metric tons, .134 long tons, and .150 short tons. A barrel is a liquid measure equal to 42 gallons or about 306 pounds.