WSC

Machines and installations for use in oil drilling, namely, drilling rig mechanization machines and devices, drilling rig mechanical handling machines and devices, oil-well and gas-well drilling machines and devices, oil-well and gas-well pumping machines and devices, oilfield wellhead machines and devices, and oil and gas compression machines and devices; oil and gas production equipment, namely, drilling rig mechanization machines and devices, drilling rig mechanical handling machines and devices, oil-well and gas-well drilling machines and devices, oil-well and gas-well pumping machines and devices, and oil and gas compression machines and devices; subsea installations, namely, drilling rig mechanization machines and devices, drilling rig mechanical handling machines and devices, oil-well and gas-well pumping machines and devices, oil-well and gas-well drilling machines and devices, and oil and gas compression machines and devices; refining installations, namely, oil refining machines, and gas refining machines and devices; pumps, namely, electric pumps, centrifugal pumps, oil-well pumps, gas-well pumps, pumps for use in oil and gas production, pumps being parts of machines and engines and motors, oil drain pumps, submersible pumps, hydraulic pumps, choke and manifold industrial pumps being parts of oilfield wellhead machines, and high pressure pumps for use in oil or gas well hydraulic fracturing operations; compressors, namely, centrifugal compressors, air compressors, gas compressors, oil compressors, compressors for use in the extraction, processing and transportation of oil and gas, compressors being parts of machines and engines and motors, and turbocompressors; coolers, namely, oil coolers for engines, coolers being parts of machines, oil and gas coolers for machines and compression systems, anti-surge coolers, discharge coolers, and oil and gas heat exchangers; bearings, namely, engine bearings, machine parts in the nature of roller bearings, and machine parts in the nature of bearings for oil and gas applications; stators, being parts of machines; motors, namely, alternating current servo motors, direct current motors, stepper motors, hydraulic motors, and asynchronous motors not for land vehicles; gears, namely, gears for machines; separators other than for vehicles, namely, oil separators, gas separators, and downhole oil separators for submersible pumps

Oil and gas extraction, construction, installation, maintenance and repair of apparatus, instruments and machines for use in the field of oil and gas extraction, namely, oil and gas pipelines, oil and gas wells, drilling machines, oil and gas production apparatus, structures for the production of oil and gas, oil-well and gas-well pumping machines and devices, oil and gas compression machines and devices, subsea oil and gas extraction modules, and oil-well and gas-well monitoring, measuring, testing, controlling, sensing, recording and indicating apparatus and instruments

Transportation and storage of oil and gas

Oil processing and refining services; gas compression and processing services

Scientific and technological services, namely, computer programming and simulation, mapping services, oil-well and gas-well testing, oil prospecting, oilfield exploration, inspection, surveying and analysis, and performing oil-well and gas-well diagnostics; scientific and technological services, namely, testing the functionality of apparatus and instruments in the nature of oil and gas equipment; scientific and technological research and design relating to the aforesaid services; industrial research and analysis relating to oil and gas; engineering services