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.
US liquid quarts
A US liquid quart is a volume unit in the United States to measure liquids such as water, milk, and other beverages. One US liquid quart is a quarter of a US liquid gallon and is about to 0.946353 liters or 0.000946353 cubic meters.