Metric tablespoons
A Metric tablespoon is unit used in cooking and baking to measure ingredients such as liquids, powders and granules. One tablespoon is equivalent to 15 milliliters making it identical to the UK tablespoon.
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.