Oficialūs aprašymai pateikiami originalo kalba (anglų).
This class includes: - extraction of crude petroleum oils
This class also includes: - extraction of bituminous or oil shale and tar sand - production of crude petroleum from bituminous shale and sand - processes to obtain crude oils (e.g. decantation, desalting, dehydration, stabilisation)
This class excludes: - extraction of condensates or natural gas liquids, see 06.20 - support activities for oil and natural gas extraction, see 09.10 - oil and gas exploration, see 09.10 - production of natural gas liquids from crude petroleum (crude oil), see 19.20 - manufacture of refined petroleum products, see 19.20 - recovery of liquefied petroleum gases in the refining of petroleum, see 19.20 - operation of pipelines, see 49.50