A crude container is a type of container used to store and transport crude oil. The four crossword solutions for this term are SACK (4 letters), BARREL (6 letters), oiler (5 letters) and oildrum (7 letters). A SACK is a bag made of cloth, paper, plastic, or other material, typically used for holding and carrying goods. A BARREL is a cylindrical container with a flat top and bottom, usually made of wood or metal, and used for storing liquids or other substances. An oiler is a device used to lubricate machinery by supplying oil. An oildrum is a large metal drum used to store and transport crude oil.