This Sub-class includes refining crude petroleum into refined petroleum products. Petroleum refining involves one or more of the following activities: •fractionation, •straight distillation of crude oil •cracking It also includes the manufacture of liquid or gaseous fuels or other products from crude petroleum, bituminous minerals or their fractionation products. Units in this Sub-class are primarily engaged in one or more of the following: •production of: - motor fuel: gasoline, kerosene, etc. - fuel: light, medium and heavy fuel oil, refinery gases such as ethane, propane, butane etc
•manufacture of biofuels, see 20298