1
Chemicals; oilfield chemicals; chemicals for use in industry; chemical dispersion agents, powders, substances and preparations; substances, powders, agents and preparations for modifying the viscosity of hydrocarbons; viscosity reducing agents; chemical stabilising agents, powders, substances and preparations; substances, powders, agents and preparations for stabilising waxy hydrocarbons; but not including pH indicator sticks or chemical test paper
37
Extraction of hydrocarbons; extraction of oil and gas; oil and gas pumping services; hydrocarbon pumping services; pumping of oil-wells and of gas-wells; information, advisory and consultancy services relating to the foregoing
39
Transportation of hydrocarbons; transportation of oil and gas
40
Chemical processing and treatment of liquids; chemical processing and treatment of hydrocarbons; chemical recycling of waste products; oil and gas processing and treatment of produced fluids; hydrocarbon processing and treatment; modifying viscosity of heavy hydrocarbons; stabilization of waxy hydrocarbons; production of hydrocarbons; production of oil and gas; treatment of oil and gas wells and facilities to modify viscosity of produced fluids; treatment of pipelines to modify viscosity of piped fluids; information, advisory and consultancy services relating to the foregoing
42
Scientific and technological services and research and design relating thereto; industrial analysis and research services; analysis for hydrocarbon exploitation, exploration, extraction, production and transportation; conducting feasibility studies relative to hydrocarbon exploitation, exploration, extraction, production and transportation; information, advisory and consultancy services relating to the foregoing