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.
UK fluid ounces
UK fluid ounces are used in the United Kingdom for measuring liquids. One UK fluid ounce is about 28.41 milliliters. It is important to note that UK fluid ounces differ slightly from US fluid ounces, with one UK fluid ounce being equal to 1.04 US fluid ounces.