MM is a designation that is derived from the Roman numeral M for one thousand meaning “one thousand one thousands” or one million. MM is widely used in the gas industry to mean a million: MMbbl, MMBtu, MMcf, MMcm, MMscf, MMscm.
mm (Millimetre) is an equal to 1/1000 (10^-3) of a metre (m).
Related Definitions in the Project: The Property and Unit
