Extraction of crude petroleum

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