Cross-border converter
CZ-NACE 09100 → CAE Rev 4 equivalent (Portugal)
Czechia's national activity classification (CZ-NACE) shares its 4-digit backbone with the EU NACE Rev 2.1 standard. We use that backbone to surface the equivalent CAE Rev 4 subclass(es) used in Portugal.
Shared EU parent
09.10
Support activities for petroleum and natural gas extraction
This class includes: - oil and gas extraction service activities provided on a fee or contract basis: • exploration services in connection with petroleum or gas extraction (e.g. traditional prospecting methods, making geological observations at prospective sites) • directional drilling and redrilling; 'spudding in'; derrick erection in situ, repairing and dismantling; cementing oil and gas well casings; pumping of wells; plugging and abandoning wells, etc. • liquefaction and regasification of natural gas for the purpose of transport, done at the mine site • draining and pumping services on a fee or contract basis • test drilling in connection with petroleum or gas extraction This class also includes: - firefighting services and fire-prevention services for oilfields and gas fields This class excludes: - service activities performed by operators of oilfields or gas fields, see 06.10, 06.20 - specialised repair and maintenance of drilling and extraction machinery and equipment, see 33.12 - specialised offshore installation, repair and maintenance of equipment that forms an integral part of floating platforms, see division 43 - liquefaction and regasification of natural gas for the purpose of land or water transport, not done at the mine site, see 52.21 or 52.22 - geophysical surveying services, on a contract or fee basis, see 71.12
09100
Support activities for petroleum and natural gas extraction
09100
Atividades de apoio à extração de petróleo e de gás natural
Compreende as atividades associadas à extração de petróleo ou de gás, executadas por terceiros, por contrato ou à tarefa, tais como: observações geológicas nos locais de prospeção, assim como, perfuração de poços (inclui perfuração direcional e reperfuração); montagem, reparação e desmontagem de estaleiros de perfuração (inclui torres de sondagem nos locais de extração); bombagem, tratamento e reparação de poços; revestimento, encabeçamento, montagem de "árvores" de válvulas em poços; fecho e abandono de poços; liquefação e regaseificação de gás natural para transporte, no local da extração.
About this conversion
CZ-NACE is the activity classification used in Czechia. CAE Rev 4 is the equivalent system in Portugal. Both are national implementations of EU NACE Rev 2.1, so any 5th-digit subclass in one system can be traced back to a shared 4-digit EU class — and from there, forward into the other country's subclasses.
This page is generated for the query "CZ-NACE 09100 to CAE Rev 4" and stays in sync with our monthly Market Intelligence sync.