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