4
Fuels and lubricants derived from petroleum; crude oil; refined petroleum products; petroleum and petroleum products, namely industrial oils and greases, lubricating oils and greases, motor oils, petroleum and mineral waxes and wax compounds; hydrocarbon fuels in liquid and gaseous form, automotive fuels, diesel fuel, gasoline, aviation fuel, ethane, butane and propane fuel gas; petroleum illuminants; synthetic lubricants; drilling lubricants
9
Computer software; computer programs for use in oil and gas exploration; scientific and analytical equipment for use in geophysical surveys; and for monitoring oil and gas reservoirs from exploration through enhanced recovery; seismic exploration apparatus
37
Drilling of wells; oil and gas extraction; pipeline construction and maintenance services
42
Oil and gas prospecting services, oil and gas field survey and research services; oil and gas well testing services; analysis services for oil and gas field exploration; exploration and searching for oil and gas; geophysical exploration for the oil and gas industries; computer software design and maintenance services relating to oil and gas field exploration; chemical analysis and research; engineering services; geological prospecting, research and surveys; land surveys; consultancy services in the field of oil and gas exploration
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