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, such as 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 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: - oil and gas field fire fighting services

This class excludes: - service activities performed by operators of oil or gas fields, see 0610, 0620 - specialised repair and maintenance of drilling and extraction machinery and equipment, see 3312 - specialised offshore installation, repair and maintenance of equipment that forms an integral part of floating platforms, see 43 - liquefaction and regasification of natural gas for purpose of transport, done off the mine site, see 5221 - geophysical surveying services, on a contract or fee basis, see 7110