1
Gas for industrial use; unprocessed hydrocarbons
4
Oil and gas, industrial oils and greases; lubricants; fuels (including motor spirit) and illuminants; non-chemical additives for oils and fuels; hydrogen for use as a fuel; crude oil products; crude oil; fuels obtained from processing hydrocarbons; electricity; gas for domestic use
37
Oil and gas well construction; installation, maintenance and repair services in relation to oil and gas well construction; oil and gas well drilling; installation of oil production apparatus; installation of oil exploration instruments; rental of apparatus for use in the oil and gas industries, namely drilling platforms and drilling tools; well completion and remedial services; well clean-up services; oil and gas industrial machine cleaning services; physical clean-up of exploration and drilling project locations to restore them to their original condition; wellbore installation; oil casing, tubing and drill pipe installation; pipe and drill installation; cementing during well construction; sealing of well liners; wirelining for oil wells; deployment of reeled risers during well construction; well deepening and multilateral type completions during well construction; casing operation during well construction; liner setting tool operation during well construction; installation services to decrease wellbore geometry; technical consulting related to the installation of oil and gas equipment, control systems, and machinery; oil, water, and gas well construction and drilling services, including casing, and drill pipe installation and maintenance, and tool rental services; building construction; repair; installation services; construction, repair and maintenance services for electrical and gas infrastructures; advisory and consultancy services in relation to oil and gas extraction and all the aforesaid services; information, advisory and consultancy services relating to all of the aforesaid services
39
Transmission, distribution, storage and supply of electricity, gas, and fuels; renewable energy transmission, distribution, storage and supply; distribution, storage, transportation and supply of energy, electricity, gas, hydrocarbons and fuels; transport, packaging and storage of goods; travel arrangements; delivery of goods; distribution of energy; transport by pipeline; water distribution; debris removal services; information, advisory and consultancy services relating to all the aforesaid services
40
Treatment of materials; production of energy; production of hydrocarbons; electricity generation; chemical processing of liquids, gases, industrial oils and petrochemicals; the industrial treatment of gases, liquids, industrial oils and petrochemicals; services associated with hydrogenation, hydro-refining and polymerisation catalysts; catalytic treatment services for use in the manufacture of synthesis gas; catalysts and catalytic systems for the oxidation of ammonia to nitric acid; advice concerning oil and gas refining and purification; effluent purification; services relating to industrial purification of gases, liquids, industrial oils and petrochemicals; catalytic treatment services for use in the manufacture of hydrogen, and in the operation of hydrogen plants; chemical processing of liquids, gases, industrial oils and petrochemicals; industrial treatment of gases, liquids, industrial oils and petrochemicals in the presence of catalysts and/or absorbents; services relating to industrial purification of gases, liquids, industrial oils and petrochemicals; oil and gas production services; information, advisory and consultancy services relating to all the aforesaid services
42
Exploration for hydrocarbons; scientific and technological services and research and design relating thereto; industrial analysis and research services; design and development of computer hardware and software; analysis services for oil field exploration; exploration and searching of oil and gas; geophysical exploration for the oil, gas and mining industries; oil and gas well testing; oil and gas prospecting; oil and gas field surveys; analysis and diagnosis of chemicals, oils, gases, greases and lubricants; architecture, industrial design, analysis, testing and research services associated with oil and gas fields, oil workings and gas and oil installations, including providing the services of analysis, testing and research laboratories; geological research and exploration; geological surveys; land surveying; geological prospecting; engineering drawings; providing technical documentation and reports and technical project studies; research in the field of environmental protection; research and development for others; underwater exploration; technical research; calibration (measuring); environmental protection; quality control; oil-well testing; materials testing; technical project studies; liner setting tool design; casing design for well construction; civil, electrical and specialist engineering services; information, advisory and consultancy services relating to all of the aforesaid services