This class includes :

Oil and gas extraction service activities provided on a fee or contract basis such as:

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 inn"; 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 & gas fields, see 0610, 0620;

Specialized repair of mining machinery, see 3312;

Liquefaction and regasification of natural gas for purpose of transport, done off the mine site, see 5221;

Geophysical, geologic and seismic surveying, see 7110.