Numbers of barrels (casks) transported or sold, or the volume that they represent.
Numbers of venturis in carburetion.
Volumes of crude oil pumped, stored, or sold (in bulk).
A varying measure of capacity, usually being a quarter of a barrel; specifically, a measure equal to nine imperial gallons.
A small wooden vessel or cask of indeterminate size, used for butter, lard, etc.
A weight measure for butter, equalling 56 pounds.