US oil barrels
A US oil barrel, also known as a petroleum barrel, is a volume unit used in the oil and gas industry to measure crude oil or liquid petroleum gas (LPG). One US oil barrel is 42 US gallons or about 159 liters.
Kiloliters
Kiloliters are volume units in the metric system equal to 1,000 liters. Kiloliters are commonly used to measure large volumes of liquids, such as water in swimming pools or tanks.