PTEN +

Metal goods, namely, parts and associated modules for oil and gas well drilling rigs, namely, platform drilling rig enclosures, metal drill pipes for use in well boring, drill pipe attachments, namely, metal drill collars, metal liners, and casings for use in wells and boreholes, and metal bolts and beams; industrial metal hoses for use in the oil and gas well fracturing industry

Oil and gas drilling rigs; power-operated drilling rigs; electric drilling rigs; mechanical drilling rigs; drilling rig equipment, namely, top drives in the nature of a machine used to hoise, lower, and rotate drill pipe, electric power drills, power drill bits, automatic catwalks in the nature of a machine that delivers drill pipe or casing to or from the rig floor and ground level, winches, drawworks, shale shakers, mud pumps and systems for use in oil and gas drilling, and structural parts therefor, namely, motors and masts; walking systems for oil and gas drilling rigs composed of hydraulic jacks, hydraulic pumps, hydraulic lift tables, hydraulic linear actuators, hydraulic power units, and hydraulic valve actuators and machine parts in the nature of bearings used to lift and move a drilling rig

Information systems comprising computer hardware, computer software, and electronic controls and alarms used to monitor, display, relay, and archive drilling information and to control the functions, processes, and operations of oil and gas drilling rig equipment

Land vehicles and trailers used to take apart, transport, and set up drilling rigs, oilfield equipment, pressure pumping equipment, and well services equipment

Contract well drilling services for oil and gas; drilling of oil and gas wells; oil and gas exploration and extraction; leasing of oil and gas drilling rigs

Oil and gas production