37 drilling and pumping of oil and gas Drilling for oil, gas and/or water On-site supervision and management of wells for others in the field oil, gas and mineral drilling and exploration Construction and maintenance of structures for the transportation of crude oil Construction and maintenance of structures for the storage of crude oil Mining services, petroleum and natural gas extraction, operation of filling stations, gas extraction Maintenance, repair and installation of oil wells, gas wells and geothermal wells and of earth formation and log analysis apparatus and instruments Installation of insulating materials, drilling of wells, exploitation and extraction of oil and gas, oil and gas drilling, oil pumping and extraction Building, exploitation, maintenance and repair of facilities and infrastructure for the generation, storage and distribution of energy, including oil, gas, natural gas and LNG (Liquefied Natural Gas) and chemicals Installation, operation, maintenance and repair of marine structures, marine equipment, and oil and gas exploration and production equipment Construction, repair and maintenance of buildings and other structures including subterranean and submarine structures and supervision thereof; repair, maintenance and servicing of vehicles, vehicle service stations and vehicle fuelling station services; electric appliance installation and repair; freezing equipment installation and repair; heating equipment installation and repair. Anti-rust treatment for vehicles; asphalting; aircraft, land vehicle and trailer cleaning, polishing, greasing, lubrication, maintenance and repair; motor vehicle wash; vehicle tyre re-fitting and repair; construction of power generating plants; installation, maintenance, repair and servicing of gas supply and distribution apparatus and instruments; repair, maintenance and servicing of gas apparatus and instruments; machinery installation, maintenance and repair; pipeline construction and maintenance; pump repair and maintenance; vehicle service stations and vehicle fuelling station services; drilling and pumping of oil; maintenance, repair and care of ships, oil rigs and aircraft; Service stations for vehicles; maintenance, repair, alteration, transformation, washing, lacquering and vehicle polishing, vehicle parts and accessories; lubrication of aircraft, watercraft, hovercraft and land vehicles; building, inspection, maintenance and repair of roads, drilling rigs, other civil engineering works and assembly of industrial plant and machines; road marking; drilling of wells; laying pipelines; installation, maintenance and repair of apparatus and instruments for use in heating; installation, maintenance and repair of computer hardware, networks of computers and computer peripherals; installation of building insulation; rental of oil pumping equipment and apparatus; consulting on the services included in this class. Installation and fitting of pipes, pipelines and other products for use in the oil and gas industry; oil and gas pipeline maintenance and repair services; construction, maintenance and repair of structures for the transportation of crude oil; construction, maintenance and repair of structures for the storage of crude oil; installation and removal of offshore platforms for the oil and gas industry; installation, operation, maintenance and repair of marine structures, marine equipment, and oil and gas exploration and production equipment; maintenance, repair and care of motor vehicles, ships, oil rigs and aircraft; repair and maintenance of oil and gas production plants; installation, maintenance, repair and servicing of apparatus, instruments and pipelines and related equipment for the location, extraction and distribution of oil and gas; oil and gas terminals and refineries, oil and gas treatment plants, storage facilities and distribution systems; refueling and lubrication services for vehicles and equipment technical consultation in the field of extraction of petroleum and derivative thereof and gas and derivatives thereof; professional advisory services for lubrication and maintenance of engines and machinery