4
Fuels and lubricants derived from petroleum, namely, fuels for heating and lighting and lubricants for industrial machinery; crude oil; refined petroleum products, namely, gasoline; 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
35
Advertising, business adminstration, retail and wholesale services connected with oil and gas industry
37
Operation of oil and gas fields; construction of structures for the production, storage and transportation of crude oil and gas; drilling of wells; extraction of oil; oil pipeline construction; oil pumping
39
Transportation and storage of oil, chemicals, electricity, fuel, gas, coal, lubricants and greases; transport by pipeline
40
Treatment of materials referred to oil and gas; material processing referred to oil and gas; oil refinery services; petrochemical refining services; Processing of gas and oil (refinery); processing of oil and gas
42
Research and development in the field of oil and gas; research and development in the field of chemicals and petrochemicals; oil field exploration; oil-well testing; oil field surveys; technical consultation, namely, early damage diagnosis in oil-field and oil conducting plants and equipment; geological marine, aerial and land surveying; engineering drafting; technical writing of documentation and reports for others; chemical laboratory services, namely analysis and diagnosis of chemicals, oils, greases and lubricants; professional technical consultation, namely, advisory services for lubrication and maintenance of engines and machinery in the oil, petroleum and petrochemical industrial design industry; geological research and exploration conducting liaison services to facilitate the exchange of technical and technological information in the oil, petroleum and petrochemical industries; providing information in the field of oil and natural gas exploration and in the field of research in the field of alternative energy sources; project feasibility studies; providing information in the field of oil and natural gas exploration; providing an internet website portal for technology and scientific news and information concerning the petroleum and chemical industries