37 Repair, maintenance, and installation services relating to oil, gas, condensate, and water wells, well bores and boreholes; construction inspection services for oil, gas, condensate, and water wells, well bores and boreholes facilities; down-hole services relating to oil, gas, condensate, and water wells, well bores and boreholes, namely drilling and intervention services; oil, gas, and water field extraction and exploitation services; maintenance, installation, repair, refurbishment, and rental of oilfield exploration, extraction, production, and exploitation equipment; on-site and off-site maintenance, installation, repair, refurbishment, cleaning, coating, and rental of pipe, tubulars, sleeves, articles, tools, machines, equipment, and apparatus for drilling, completing, intervening in and allowing production from boreholes, well bores and oil, gas, condensate, and water wells; on-site and off-site maintenance, installation, repair, refurbishment, and rental of gas and oilfield pipes, tubulars, articles, tools, machines and apparatus; services for the drilling of, completion of, intervention in, and facilitating production from well bores and boreholes; casing and lining of boreholes; maintenance, installation, repair, and refurbishment services in relation to casing and lining of well bores and boreholes; on-site and off-site maintenance, installation, repair, refurbishment, and rental of man-made structures used in or around boreholes; on-site and off-site inspection services in the course of construction of man-made structures used in or around boreholes; oil field and hydrocarbon production services; oil field and hydrocarbon extraction and exploitation services, namely extraction of oil, gas, and hydrocarbon; construction supervision and construction project management services for oil, gas, condensate, and water wells, well bores and boreholes facilities; rental of apparatus, equipment, articles, tools, and instruments for use in any of the aforesaid services; information, advisory, and consultancy services in relation to the aforesaid services