This class includes:
——production of crude gaseous hydrocarbon (natural gas)
——extraction of condensates
——draining and separation of liquid hydrocarbon fractions
——gas desulphurization

This class also includes:
——mining of hydrocarbon liquids, obtained through liquefaction or pyrolysis

This class excludes:
——support activities for oil and gas extraction, see 0910
——oil and gas exploration, see 0910
——recovery of liquefied petroleum gases in the refining of petroleum, see 1920
——manufacture of industrial gases, see 2011
——operation of pipelines, see 4930