Barrel (unit)
UNIT OF VOLUME WITH DIFFERENT VALUES
Mbbl; Bbl; Petrol barrel; Barrel per day; Barrel per calendar day; Barrel (unit of volume); MMbbl; Bbl/day; Barrel of oil; Barrels of oil; Bbl/d; Barrel of petrol; MMbbl/d; Millions of barrels per day; Gigabarrel; Oil barrel; Barrels per day equivalent; Barrels per day; Barrels per calendar day; Oil barrels; Bbls; B/d; BBL/D; Barrel (petroleum); Barrel (volume); BOPD; Blue barrel; Barrels per stream day
A barrel is one of several units of volume applied in various contexts; there are dry barrels, fluid barrels (such as the U.K.