Crown and travelling blocks; swivels; pulley blocks; draw works or hoists; drives for draw works and pumps; engines and parts thereof in this class - particularly, gas engines, steam engines, internal combustion engines and transmissions; stuffing boxes; oil well rigs and parts thereof; outfits for sinking wells of large diameter through soft formations; pumping machinery and equipment and parts thereof - particularly, steam pumps, rotary pumps, jet pumps, slush pumps, force pumps, pitcher-spout pumps, pumping jacks, pumping powers and pumping units; rig parts; portable well pulling machines; drive-well and test boring machines; test boring machines; rig irons; sand reels; boiler and engine fittings - particularly, tube expanders, flue cleaners, steam whistles, inspirators, injectors; ejectors; hydraulic rams; drilling and fishing tools for cable systems; well equipment - particularly, elevators, anchor-clams, casing heads; oil well pipe tools - particularly, pipe benders, pipe cutters, pipe threading machines, stocks and dyes, tongs, wrenches, pipe drills and pipe tapping machines; oil-well blacksmith tools; cable tool well drilling units; portable drilling machines; drill collars; drill or grief stems; core drills; feed controls for well drilling; polish rod jackets; rotary drilling units and parts thereof - particularly, well drilling rotaries; derricks, portable derricks and parts thereof - particularly, substructures for derricks and drives; portable masts; pull rods; pull rod clamps; reduction gears; sucker rods; sucker rod couplings; oil well packers; gas booster units

Non-metallic construction materials

Advertising; business management

Power operated pumps and pump equipment for use in oilfield equipment and service; namely, triplex mud pumps, duplex mud pumps, rod pumps, hydraulic reciprocating pumps, hydraulic jet pumps, sucker rods, well service pumps and plunger pumps; oilwell drilling machinery and parts therefore; namely, drawworks, torque converters, rotaries, swivels, traveling blocks, hook blocks, crown blocks, drill pipe, tubulars, pedestal cranes, jacking and drilling manifolds; power operated oil wellhead and well completion equipment; namely, wellheads, slips, casing hangers, tubing hangers, completion risers, drilling risers, production trees, through-bore trees, production manifolds and injection manifolds; valves for use with oil field drilling and production machinery; namely, gate valves, block valves, safety valves, pneumatic actuated valves and hydraulic actuated valves all made of steel and used in oil wellhead completion equipment; valves for use with oil field drilling and production machinery; namely, ball valves, check valves, throttle valves and diverter valves all made of steel and used in oilwell fluid control production systems in class 7

Power operated pumps and pump equipment for use in oilfield equipment and service; namely, triplex mud pumps, duplex mud pumps, rod pumps, hydraulic reciprocating pumps, hydraulic jet pumps, sucker rods, well service pumps and plunger pumps; oilwell drilling machinery and parts therefore; namely, drawworks, torque converters, rotaries, swivels, traveling blocks, hook blocks, crown blocks, drill pipe, tubulars, pedestal cranes, jacking and drilling manifolds; power operated oil wellhead and well completion equipment; namely, wellheads, slips, casing hangers, tubing hangers, completion risers, drilling risers, production trees, through-bore trees, production manifolds and injection manifolds; valves for use with oil field drilling and production machinery; namely, gate valves, block valves, safety valves, pneumatic actuated valves and hydraulic actuated valves all made of steel and used in oil wellhead completion equipment; valves for use with oil field drilling and production machinery; namely, ball valves, check valves, throttle valves and diverter valves all made of steel and used in oilwell fluid control production systems in class 7

Machines, fabricated structures, tools and replacement parts therefore for use in the production of oil and gas from wells and for the drilling of oil and gas wells; rig structures, including derricks, masts, platforms, work-over rigs, self-propelled rigs, trailerized rigs, skidding systems, rig jacks, spiders, substructures, operator cabins, blowout preventer handling systems, wireline units, power generation and transmission equipment, including generators, motors, power distribution systems, torque converters, and hydraulic power packs; hoisting equipment, including drawworks, sheaves, travelling blocks, crown blocks, catheads, winches, deadline/wireline anchors, brakes, swivels, winches, fairleads, windlasses, hooks, elevators, cranes, level winds, chain links and lift chains; pumping equipment, including standpipes, goosenecks, risers, pumps, pump pistons, pump liners, valve seats, valves, blenders, cement pumpers, acid pumpers, combination cementer/acidizers, cement batch mixers, injectors, sucker rods, frac blending units, nitrogen pumping equipment, cryogenic pumps, slush pumps, well service pumps, plunger pumps, mud pumps, positive displacement pumps, and centrifugal pumps; pipe handling equipment, including elevators, slips, pipe rackers, tongs, wrenches, pipe spinners, iron roughnecks, breakout machines, bumper subs, cranes, dies, inserts, claws, grippers, elevators, power slips, thread protectors, cam rollers, mechanical arms, stabbing baskets, and pipe racks; solids control equipment, including shakers, desilters, desanders, degassers, centrifuges, mud cleaners, cones, mud agitators, mud hoppers, mud guns, mud mixers, mixers, dryers, compressors, separators, screens, cuttings cleaners, conditioning units, filters, clarifiers, sand washers, and hydrocyclones; pressure control equipment, including valves, blowout preventers, chokes, diverters, pressure control valves, safety clamps and valves, relief valves, float valves, gate valves, choke manifolds, flanges, and actuators; rotating equipment, including top drives, swivels, power swivels, kelly drives, rotary tables, bushings, and fluid driven motors; motion compensation equipment, including crown mounted compensators, drill string compensators, riser tensioners, and riser gimbals; well tools, including downhole motors, drilling jars, fishing tools, reamers, shock tools, drill collars, stabilizers, wellheads, valves for wellheads, pipes and pipelines, tool joints, connectors, running tools, tubing and casing threads, casing hangers, casing scrapers, mudline hangers and connectors, packers, plugs, nipples, flow meters, coiled tubing units, tubing hangers, tubing heads, tubing reels, injectors, carriers, tubing grippers, grippers, wireline components, rods, couplers, intervention tools, completion tools; computer controlled pipe hoisting and racking equipment

Electronic instrumentation and controls for monitoring and displaying data associated with the drilling of oil and gas wells and the production of oil and gas from wells; instrument control panels, instrument control consoles, instrument control circuits, indicators, gauges, meters, data processors, computer controlled drilling equipment augmented to log key well drilling parameters and communicate electronically, rig activity recorders, electronic fluid control and recovery equipment, blow out preventers, regulators, pressure gauges, subterranenean and subsea production equipment controllers and components thereof, hydraulic load sensing and indicating systems comprised of dial indicators, load totalizers, load sensing cells, well testing units, and automatically operated gas valves; electronic, magnetic and ultrasonic instruments and apparatus, as well as computer hardware and software, for inspecting, measuring, analysing, surveying, testing, tracking, inventorying, and locating pipelines, drill pipe, tubing, casing line pipe, joints, and other tubular goods; computer hardware and software for providing information and data about the functions, processes, and operations of drilling rig equipment and for enabling rig personnel to manage, monitor, and control the functions, processes, and operations of equipment in the drilling of oil and gas wells and the production of oil and gas from wells; silicone control rectifier (SCR) electrical units for converting AC to DC, electric generators, electric motors, permanent magnet motors, power distribution equipment, including switches, circuit breakers, transformers, control panels, computers and instrumentation for controlling the distribution of electrical power; instrumentation, inspection, and control equipment, including control panels, pipe inspection equipment, and pressure sensors

Power operated pumps and pump equipment for use in oilfield equipment and service; namely, triplex mud pumps, duplex mud pumps, rod pumps, hydraulic reciprocating pumps, hydraulic jet pumps, sucker rods, well service pumps and plunger pumps; oilwell drilling machinery and parts therefore; namely, drawworks, torque converters, rotaries, swivels, traveling blocks, hook blocks, crown blocks, drill pipe, tubulars, pedestal cranes, jacking and drilling manifolds; power operated oil wellhead and well completion equipment; namely, wellheads, slips, casing hangers, tubing hangers, completion risers, drilling risers, production trees, through-bore trees, production manifolds and injection manifolds; valves for use with oil field drilling and production machinery; namely, gate valves, block valves, safety valves, pneumatic actuated valves and hydraulic actuated valves all made of steel and used in oil wellhead completion equipment; valves for use with oil field drilling and production machinery; namely, ball valves, check valves, throttle valves and diverter valves all made of steel and used in oilwell fluid control production systems in class 7