Cyclone separators; Cyclones; Downhole oil separators for submersible pumps; Drilling machines and parts therefor; Drilling rigs, floating or non-floating; Electrostatic generators; Filtering machines for chemical processing; Gas diverters consisting of a pump, storage and refilling tank, pre-heater, vaporizer, recuperator, condenser and valves; Gaskets for internal combustion engines; Heat exchangers being parts of machines; Ignition magnetos for engines; Ignition wires; Ignitions parts for internal combustion engines, namely, points; Milling cutters; Motors, other than for land vehicles; Pumps for machines; Submersible pumps; Valves as machine components; Valves for pumps; Variable speed drives for machines; Variable speed drives for use with fluid pumping systems; Well drilling machines; Angle valves being parts of machines; Back pressure valves as parts of machines; Ball valves being parts of machines; Butterfly valves being parts of machines; Circulating pumps; Components for machines and machine tools, namely, sand, chemical and reverse osmosis filters; Diffusers used in machines for wastewater and clean water treatment; Dispensing valves being machine parts; Drives for motors; Earth moving machines, namely, scrapers; Electric motors for machines; Electric pumps; Emulsifying machines for chemical processing; Exhaust manifold for engines; Extracting machines for chemical processing; Gravel and dirt sorting and screening machines; High-pressure pumps for use in oil or gas well hydraulic fracturing operations; Hydraulic controls for machines, motors and engines; Hydraulic pumps; Intake manifolds for internal combustion engines; Lubricating pumps; Machine parts, namely, joints and joint parts for connecting sliding strips, plates and guides; Machine tools for forming, riveting, swaging, and flaring of metal and plastics; Machinery, namely, vacuum distillation equipment; Machines, namely, heat transfer presses; Machines, namely, sublimation heat transfer presses; Mechanical condensators; Milling-drilling machines; Oil separators; Oil-well pumping machines; Parts of oilfield wellhead machines, namely, gate valves, ball valves, check valves, plug valves, globe valves, choke and manifold industrial pumps, pump and valve parts, pipe fittings and flanges; Pneumatic pumps; Pump control valves; Separating machines for chemical processing; Skid-mounted oil and natural gas extracting and processing machines, namely, separators; Sludge pumps; Slurry blender machines for use in oil or gas well hydraulic fracturing operations; Thermostatic control valves for machines; Thread milling cutters; Variable frequency drives for large power applications in the oil and gas, metal, marine and other Industries; Vibratory screen separators

Change-over switches; Condensers; Distillation apparatus for scientific purposes; Gas detectors for detecting the presence of gas; Gas flow meters; Gas meters; Level measuring machines; Nitrogen concentration detectors; Plug adaptors; Plug connectors; Plug-in connectors; Apparatus for testing gas, liquids and solids; Automated valves for use in the treatment of crude oil and drilling operations; Automatic valves for use in the treatment of crude oil and oilfield operations; Centrifugal metering pumps; Control valves for regulating the flow of gases and liquids; Electric control panels; Electrical integrated control systems for use in the field of water treatment; Electronic metering faucets; Flow meters; Frequency meters; Laboratory apparatus and instruments for the exchange of substances and heat; Programmable logic controller (PLC); Safety valves for flow shutoff in well construction; Scientific apparatus for use with membrane filtration, namely, water filter controllers and computer software for detecting and measuring water quality; Valves for controlling and regulating the flow of gases or liquids not being parts of plumbing, heating, cooling installations or machines; Water filter controllers

Boilers for heating installations; Desalination units, namely, electrostatic crude oil desalters and dehydrators; Desalination units, namely, electrostatic crude oil desalters and dehydrators for removing contaminants and water from crude oil; Distillation apparatus not for scientific purposes; Distillers for chemical processing; Distilling units; Electrostatic water treatment apparatus; Electrostatic water treatment apparatus for use in oil and gas drilling and mining operations; Filters made of fiber for water filtration; Flare stacks for use in the oil industry; Furnace boilers; Furnaces; Heat exchangers for chemical processing; Heat exchangers not being parts of machines; Heat exchangers, other than parts of machines; Refrigerating machines; Refrigerators; Separators for the cleaning and purification of air; Separators for the cleaning and purification of gases; Separators for the cleaning and purification of liquids; Water treatment apparatus, namely, clarification and thickening machines for use in treatment of liquids in the nature of water, waste water and industrial water; Water treatment equipment, namely, water filtration units; Water treatment equipment, namely, water filtration units and reverse osmosis units; Water treatment equipment, namely, cartridge filtration units; Water treatment equipment, namely, chemical sterilization units; Water treatment equipment, namely, reverse osmosis filtration units; Water treatment equipment, namely, reverse osmosis units; Water treatment equipment, namely, ultraviolet sterilization units; Water treatment unit for aerating and circulating water; Carbonizing furnaces; Chlorinating units for water treatment; Coils as parts of distilling, heating or cooling installations; Drainage water treatment tanks; Electric dehydrators; Electric furnaces; Equipment for treating groundwater and soil comprising distribution lines, distribution manifolds, drop tubes, well seals and blowers; Fluid separation apparatus for separation of gas from liquid in a chemical or oil refinery; Gas fired water heaters; Gas refrigerators; Heating boilers; Heating systems composed primarily of tubes, pipes and manifolds through which warm or high temperature water circulates; Heating systems composed primarily of tubes, pipes and pre-assembled manifolds through which cold or low temperature water circulates; Industrial boilers; Industrial furnaces; Waste water treatment tanks; Water desalination plants; Water distillation units; Water filters; Water purification tanks

Cementing services for oil and gas wells; Construction consultation; Construction project management services; Drilling and pumping of oil; Drilling for crude oil; Drilling of deep oil or gas wells; Drilling of oil wells; Drilling of wells; Furnace installation and repair; Pipeline construction; Pipeline maintenance; Pump repair and maintenance; Wirelining for oil wells; Laying and construction of pipelines; Metal drilling and perforation; Oil pipeline construction; Oil and gas drilling; Oil well casing, tubing, and drill pipe installation; Pipeline construction and maintenance; Pumping crude oil; Repair or maintenance of construction machines and apparatus; Repair or maintenance of industrial furnaces

Gas processing services; Processing of oil; Water treatment and purification; Water treatment services; Consulting in the field of water treatment; Consulting services in the field of oilfield water treatment; Continuous biological water treatment services; Natural gas liquefaction services; Oil refinery services; Oil well prospecting, namely, perforation and spill treatment; Oil and gas well treatment; Petroleum gas liquefaction services; Sustainable on-site water recycling and wastewater treatment services; Technical consulting in the field of oil and gas production and processing; Water filtration and conditioning services; Water recycling and desalination services

Chemical analysis; Construction drafting; Data-acquisition and collection for calibration and coordinate-measurement purposes; Pipeline inspection services; Water quality control services; Analysis for oil research; Conducting wellbore survey services for the oil and gas, energy, mining, environmental and construction industries; Consultation in the field of auxiliary design for oil and gas industrial machines; Designing of heat exchangers; Engineering services in the field of reducing carbon dioxide emissions; Environmental testing and inspection services; Environmental engineering, testing and inspection services; Oil well testing; Oil prospecting, namely, well logging and testing; Well logging