06.20 - Extraction of natural gas

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

This class excludes: - support activities for oil and natural gas extraction, see 09.10 - oil and gas exploration, see 09.10 - recovery of liquefied petroleum gases in the refining of petroleum, see 19.20 - manufacture of industrial gases, see 20.11 - operation of pipelines, see 49.50