what does mcf mean in gas production
M âequals one thousand (1,000). MM âequals one million (1,000,000). Mcf âequals the volume of 1,000 cubic feet (cf) of natural gas. MMBtu âequals 1,000,000 British thermal units (Btu) (One Btu is the heat required to raise the temperature of one pound of water by one degree Fahrenheit.).