The utility model discloses an oil drum, it is of no use in the oil drum's that promotes oil consumption accuracy of measurement technical problem to have solved between present oil tank and the fuel oil engine. The drinking water barrel comprises a barrel body, the inner chamber of staving is regular shape, be equipped with with the oil inlet of oil tank intercommunication on the staving, advance the oil -out of oil pipe intercommunication and return the oil return opening of oil pipe intercommunication with fuel oil engine with fuel oil engine, the oil inlet through advance oil pipe say with the inside intercommunication of staving, expose and advance oil pipe and say and be equipped with the oil feed strapping table in that the staving is outside, be equipped with the liquid level detection ware in the staving, the direct staving bottom of liquid level detection ware. Has following advantage: 1 )Through add the oil drum small, that the shape is regular between oil tank and fuel oil engine, undulant interference is little, can accurately calculate the oil consumption, 2 )Through addding liquid level detection ware and strapping table, can be more accurate calculate the oil consumption, calculate simple and conveniently, 3 )This oil drum is small, the shape is regular, and is easy to assemble, and it is more convenient to use.