Oilfield chemicals, chemical compositions for use in well drilling fluids and drilling operations; chemicals for use in the construction, treatment, servicing, completion and working of oil, gas, geothermal, and water wells, and for use in cleaning of industrial facilities; chemicals for use in industry; chemicals, namely, cement additives for completing wells in the form of retarders; chemicals, namely, oil dispersants, fluid loss agents, gas migration preventors, weighting agents, extenders, antifoaming agents, foaming agents, salt compatibility agents and accelerators for use in the field of oil drilling; chemical acidizing agents for stimulating fluid flow from oil wells in the form of primary acidizing agents, alcoholic acid, organic acids, perforating acids, clay acids, emulsified acids, gelled acids, retarded acids and foamed acids; acids additives in the form of acid corrosion inhibitors, surface tension lowering agents, mutual solvents, iron stabilizers, clay stabilizers, friction reducing agents, antisludge agents and acid diverting agents; chemicals, namely, fracturing fluids, aqueous linear polymer gels, aqueous crosslinked polymer gels, oil based gels, emulsified fracturing fluid agents, stabilized foam fracturing for use in the field of oil drilling; chemicals, namely, fracturing additives, gelling agents, proppants, breakers, crosslinkers,fluid loss additives, demulsifiers, emulsifiers, acid gelling agents, anti-bacterials used for the purpose of destroying bacteria and chemicals for use as temperature stabilizers

Hand-held coiled metal tubing; oil and gas well downhole metal goods, namely, metal sand control screens, metal mandrels, metal pipes, metal tubing and metal seals; armored cables for signal transmission; metal pipes and tubes and pipe joints made of metal; metal silos; common metals and their alloys; metal building materials, namely, soffits and fascia; non-electric cables and wires of common metal; small items of metal hardware, namely, pulleys, springs, nuts and washers; pipes and tubes of metal; and metal fluid storage tanks

Machines and machine tools for the cutting and for mixing of materials; electric and hydraulic pumps, fuel injectors, engines not for land vehicles for machine operation, transmission gears for machines, workover equipment, namely, drilling machines; mudding equipment, namely, drilling mids for use in oil well drilling, mud dredging machines; cement mixers, centrifugal pumps,recirculating mixing machines, electric drills, electric motors for machines, packing machines, machines, namely, liner hangers and landing nipples used in well completions, hydraulic valves for pumps, pneumatic valves for pumps, machines, namely, wireline formation tester and wireline cutters for use in well workover and intervention, machines, namely, rotary sidewall coring machines for use in the field of oil drilling, machines, namely, material blenders, sand feeders and conveyors, cementing, fracturing and acidizing tools all for use in the field of oil drilling; power tools, namely, retainers, plugs, fluid injectors, and gun perforators; hydraulic valve actuators, couplings for machines; machine parts, namely, high pressure jetting nozzles which are parts of power-operated sprayers; machines, namely, oil well cement dump bailers; machines, namely, perforators for use in perforating oil and gas wells; machines, namely, combination fluid sampler and filtration units for use in oil-well drilling; mechanically power-operated well intervention tool, namely, a wireline retrievable well bore bridge plug for use in oil and gas well exploration and production; drilling rigs; machines for use in cementing and treatment of wells in the form of cementing units, cementing plugs, water control apparatus, sand control apparatus, scale control apparatus and foam application apparatus, liquid additive installations, namely, mixers and blenders for use in the field of oil drilling; machinery used for transporting and metering bulk material used for the purpose of oil drilling; combination machines for use in perforating, downhole casing repairing, packing, bridge plug and cement retainer setting, sand setting and consolidating, casing and tubing cutting and for pipe and apparatus recovery, all the aforesaid for use in well completion; electric pumps, pump control valves; machines used for the purpose of free point indicating in the field of oil drilling; industrial cleaning apparatus machines for cleaning pipes, boilers, heaters, coolers, condensers, evaporators, exchangers and nuclear steam generating equipment; motors and engines not for land vehicles; machine coupling and transmission components not for land vehicles

Computer software used to analyze engineering, geological and geophysical data; computer aided manufacturing software used to control and manage the operation of electrical gauges, sensors and control panels in the field of well drilling and well working; electronic controls for hydraulic valves and pneumatic valves, nitrogen and carbon dioxide detectors; computer programs for use in geophysical and geological exploration and data analysis and drilling of pumping of oil, and oil field surveying and exploration; electronic instruments for sensing, measuring, testing, conditioning, indicating and recording electrical and physical quantities for use in oil field exploration; electroacoustic transducers; thermocouples, electric torque meters, fluid level sensors; electronic fluid detectors, electronic nuclear detectors for radiation particles, gamma scintillation detectors and photomultipliers and power supplies for use therewith; temperature sensors used in meteorology, oceanography, and plant control; tachometers,remote controls for the purpose of oil field exploration; scientific measuring instruments used for the purpose of oil field exploration; analog and digital instruments, namely, panel meters, ammeters, voltmeters, multimeters, amperehourmeters, frequency and phase meters, densitometers, radiation gauges and thickness gauges; oscilloscopes; electronic microwave frequency counters; pulse generators, namely, spectrum analyzers and frequency synthesizers used for the purpose of oil field exploration, electronic aerospace instruments, namely, signal generators, analyzers and data loggers used for the purpose of oil field exploration; electronic meters for use in massflow measurement; modular instrumentation apparatus used for the purpose of oil field exploration; electronic energy management apparatus and instruments used for the purpose of oil field exploration; meter test benches used for the purpose of oil field exploration; time switches for use in the field of oil field exploration, capacitor controls for use in controlling oil drilling capacity, voltage regulators, regulated power supply circuits and rectifiers, fault and disturbance recording and monitoring apparatus used for the purpose of oil field exploration; electrical energy utilization metering devices complete with related software sold as a unit in the field of oil exploration; mulitariff electronic equipment, namely, meters, registers, graphic meters, power and energy electricity meters, thermal demand meters, load control apparatus, demand registers, meter registers, meter and register programmers and computers all for use in oil field exploration and drilling; translation apparatus for use in the field of oil drilling and exploration and electronic instruments and computers and computer software for use therewith in the field of oil drilling and exploration; data retrieval portable computers for use in energy management; remote meter reading and remote control apparatus used for the purpose of oil field exploration and drilling; signal generating and transmitting apparatus for use in the field of oil exploration and drilling and stations and signal receiver relays for use in the field of oil exploration and drilling, electric time switches, laboratory and portable meter testing equipment for use in the field of oil drilling and exploration; electronic appliance monitoring equipment for use in the field of oil drilling and exploration and coin-freed equipment for use in the field of oil drilling and exploration; central meter reading equipment for use in the field of oil drilling and exploration; meter interface units for reading gas, water and electric meters over cable or telephone lines; measurement apparatus and instruments for use in oil exploration and production; electronic instruments for acquiring, processing and interpreting marine seismic data; electronic measurement instruments for use in well testing, evaluating, drilling, completing, producing and repairing rendered in connection with open and cased wells; electronic logging apparatus for use in the field of oil drilling and exploration; formation testing and analysis equipment for use in the field of oil drilling and exploration; electronic fluid sampling instruments for use in the field of oil drilling and exploration; electronic dip determination instruments for use in the field of oil drilling and exploration; electronic direction and deviation surveys equipment for use in the field of oil drilling and exploration; electronic depth determination instruments for use in the field of oil drilling and exploration; electronic instruments for use in acquiring, processing, interpreting, storing, presenting and transmitting well site logging data under computer control; computer hardware and software for use with drilling equipment and instruments and for use in well completion and stimulation in connection with oil and gas wells; flow meters, consistometers for use in the field of oil drilling and exploration; densitometers for use in the field of oil drilling and exploration

Trucks for use in oil wheel testing, oil drilling and processing; boats and barges fitted with pumping apparatus for fracturing, acidizing, cementing, sand control and offering well services; apparatus for locomotion by land, air or water

Explosive substances, projectiles, shaped charges; ammunition and explosives for use in connection with oil well testing, exploration, drilling and processing

Printed matter, namely, brochures, magazines, books and newsletters in the field of oil, gas, geothermal and water well construction, treating, servicing, completion, and working, in the field of subterranean formation analysis, and the field of cleaning of industrial facilities; instructional and educational materials and brochures in the field of oil, gas, geothermal and water well construction, treating, servicing, completion, and working, in the field of subterranean formation analysis, and the field of cleaning of industrial facilities; user manuals for use in geophysical and geological exploration and data analysis and drilling and pumping of oil, and oil field surveying and exploration

Oil, gas and geothermal well drilling, cementing and pressure grouting services; construction and installation of pneumatic bulk material handling systems, comprised of, pipes, tubing, couplings, pumps, blowers, filters, valves, and electrical controls and switches; extraction of hydrocarbons; extraction of oil and gas; oil and gas pumping services; hydrocarbon pumping services; pumping of oil-wells and of gas-wells; building construction and repair; installation services in the field of oil and gas drilling; information, advisory and consultancy services in the fields of oil and gas wells and oil drilling and exploration

Oil, gas and geothermal well treatment in the nature of perforating, fracturing, stimulating and plugging; chemical treatment of waste water; chemical treatment of hydrocarbons; chemical recycling of waste products; oil and gas processing and treatment of produced fluids; hydrocarbon treatment services; treatment services, namely, modifying viscosity of heavy hydrocarbons; treatment services, namely, stabilization of waxy hydrocarbons; production of energy in the nature of hydrocarbons; production of oil and gas; treatment of oil and gas wells and facilities to modify viscosity of produced fluids; treatment of pipelines to modify viscosity of piped fluids; treatment of materials used in the field of oil and gas drilling and well treatment; information, advisory and consultancy services in the fields of oil and gas drilling and geothermal well treatment

Scientific and technological services and research and design in the field of oil and gas drilling, geothermal well treatment and exploration; industrial analysis and research in the field of oil and gas drilling, geothermal well treatment and exploration; analysis for hydrocarbon exploitation, exploration, extraction, production and transportation; conducting feasibility studies relative to hydrocarbon exploitation, exploration, extraction, production and transportation; engineering, geological estimations and research and computer programming in the field of oil, gas and geothermal well drilling; testing and analysis and treating of oil, gas, and geothermal well workings; oil, gas and geothermal field exploration; environmental, energy sector, and related technology services offered in connection with geothermal drilling, testing and analysis; seismic survey services; oil-field survey services; surveying; testing of oil wells; well logging services; analyses for oil-field exploitation; computer-aided engineering design and testing; programming and design of computer controlled test software systems for circuit boards; design of electrical and electronic apparatus and instruments used for purposes of geothermal drilling; services relating to oil and gas production and testing; scientific research and design relating to oil and gas production and testing; industrial analysis and research services in the field of geothermal drilling; design and development of computer hardware and software; information, advisory and consulting services relating to oil and gas drilling, well testing and exploration