Treatment of materials by vulcanization, namely, materials for use in construction, for the oil industry, for the petrochemical industry; gas production services; filtration of gas being gas processing services; gas refining; oil refining; processing of gas; processing of oil; refining of petroleum products; petroleum gas liquefaction services; natural gas liquefaction services; filtration services for the oil industry being fuel refining; Apparatus and instruments for conducting, switching, transforming, accumulating, regulating or controlling electricity, namely, transformers; apparatus for recording, transmission or reproduction of sound or images; blank magnetic data carriers and digital recording media, namely, digital audio tape recorders; data processing equipment, namely, computers; computer software for creating searchable databases of information and data; fire-extinguishing apparatus; Non-metal building materials, namely, non- metallic transportable buildings; Motors and engines except for land vehicles; automatic vending machines; fans for motors and engines; pump machines for the extraction of gases being vacuum pumps; pumps machines for the extraction of liquids being vacuum pumps; sludge pumps; Transportation and storage of goods; transport by pipeline; transmission of oil, petroleum or gas through pipelines; storage, distribution, and transportation of liquefied petroleum gas, gas, oil; transportation of liquefied natural gas through the sea; Building construction and repair; laying and construction of pipelines; installation of industrial plants, namely, installation of oil production apparatus; construction project management services in the field of construction of offshore oil and gas facilities; maintenance of oil and petrochemical installations, namely, maintenance of pipelines for oil; turnkey construction of installations for transporting liquids being pipeline construction; construction of transport infrastructure being road construction; civil and industrial construction being construction of facilities, structures, living quarters, and utility buildings, production modules and subsea modules in the oil and gas industry; repair of off-shore oil and gas installations; extraction of gas; oil and gas drilling; construction of structures for transporting petroleum and natural gas; drilling of oil or gas wells; construction of pipelines; construction of fountains for the production of crude oil; pipeline construction and maintenance; drilling and pumping of oil; Engineering services, namely, engineering for the oil and gas industry; consultancy and survey services in the field of engineering; research in the field of ecology; geological surveys and research; oil-field surveys; oil-field testing being oil-field surveys; design of oil-field surveys; analysis for oil-field exploitation; oil-well testing; oil-well surveys; design of oil-well surveys; analysis for oil-well exploitation being analysis for oil-field exploitation; analysis of oil reservoirs being analysis for oil research; scientific and technological services, namely, analysis and testing in the field of oil
