PetroChina Co. Ltd. engages in the petroleum related products, services and activities. It operates through the following business segments: Exploration and Production; Refining and Chemicals; Marketing; Natural Gas and Pipeline; and Head Office and Other. The Exploration and Production segment involves exploration, development, production, and marketing of crude oil and natural gas. The Refining and Chemicals segment focuses on the refining of crude oil and petroleum products, production and marketing of primary petrochemical products, derivative petrochemical products, and other chemical products. The Marketing segment includes marketing of refined products and the trading business. The Natural Gas and Pipeline segment comprises transmission of natural gas, crude oil, and refined products and the sale of natural gas. The Head Office and Other segment relates to cash management and financing activities, the corporate center, research and development, and other business services supporting the operating business segments of the Group. The company was founded on November 5, 1999 and is headquartered in Beijing, China.

Halliburton Energy Services, Inc. provides oilfield services. It offers technical products and services for petroleum, natural gas exploration and production. The company is headquartered in Houston, TX.

WellDynamics is a provider of completion technology to the upstream oil industry. The company offers SmartWell technology, a well completion system that controls remotely and monitors reservoir zones. It also provides interval control valves, zonal isolation products, downhole control systems, completion components, electrical and hydraulic systems, optical fiber products, and reservoir solutions.

Shenzhen Fluid Science & Technology Co. Ltd. is a Chinese private company located in Shenzhen that provides oilfield service equipment. Shenzhen Fluid Science & Technology Co. Ltd. acquired Shenzhen Fluid Science & Technology Co. Ltd. from Petro-king Oilfield Services Ltd.

Yantai Jereh Petroleum Equipment Technology Co. Ltd., a subsidiary of Yantai Jereh Oilfield Services Group Co. Ltd., is a Chinese company that manufactures oilfield equipment.

Hebei North China Petroleum Rongsheng Machinery Manufacturing Co., Ltd., established on 2002-05-27, Business scope includes petroleum machinery products and accessories,Manufacture of special pipes and fittings for petroleum,Sales,Installation and Maintenance;Production of rubber seals,Sales;motor repair;Manage the export business of the company's self-produced products and the machinery and equipment needed by the company,spare parts,Import business of raw and auxiliary materials(Except for commodities and technologies that the state restricts the company to operate or prohibits the import and export of);General cargo;Petroleum machinery technology transfer,technology development,Technical Services,technical consulting;Petrochemical engineering construction general contracting level 3;Own Equipment Rental;Distribution switch control equipment,Development of Electrical Equipment for Industrial Automatic Control System,manufacture,Sales,Install,repair;oil,natural gas,Drilling in the process of coalbed methane exploration and development,Workover,Completion,Downhole operation engineering technical service.(Items subject to approval by law,Business activities can only be carried out after approval by relevant departments)***

Shandong Wanhai Electric Technology Co., Ltd., established on 2015-07-24, Business scope includes general items:Manufacture of power distribution switch control equipment;Research and development of power distribution switch control equipment;Distribution switch control equipment sales;Manufacturing of power transmission and distribution and control equipment;Intelligent power transmission and distribution and control equipment sales;Research and development of high-efficiency and energy-saving technologies in the power industry;Manufacturing of Power Electronic Components;Manufacturing of power facilities and equipment;Mechanical equipment research and development;Research and development of special electronic materials;Sales of power facilities and equipment;Sales of power electronic components;Mechanical and electrical equipment manufacturing;Sales of mechanical and electrical equipment;electrical equipment repair;Engineering Management Services;Wind turbines and parts sales;transformer,Rectifier and inductor manufacturing;Marine supporting equipment manufacturing;Offshore wind power related system research and development;Motor and its control system research and development;Offshore wind power related equipment sales;Ocean energy system and equipment manufacturing;Ocean energy system and equipment sales;Manufacture of special machinery and equipment for water resources;Diving and salvage equipment sales;Instrument Manufacturing;Intelligent Instrument Manufacturing;Electrical instrumentation manufacturing;Instrument sales;Smart Instrument Sales;Sales of electrical instruments and meters;Instrument Repair;Security equipment manufacturing;Security System Monitoring Services;Security equipment sales;Manufacturing of lighting fixtures;Research and development of key technologies for waste heat power generation;Sales of solar thermal power generation equipment;Solar Power Technology Services;Photovoltaic equipment and components sales;Manufacturing of photovoltaic equipment and components;Photovoltaic power generation equipment rental;Micro motor and component manufacturing;Sales of micro motors and components;Digital Video Surveillance System Manufacturing;Complete set of nuclear power equipment and engineering technology research and development;Research and development of intelligent robots;Security technology prevention system design and construction services;Virtual reality equipment manufacturing;Internet equipment manufacturing;Manufacture of special equipment for oil drilling;Ship automation,detection,Monitoring system manufacturing;General machinery and equipment installation services;Manufacturing of aids to navigation equipment and related devices;Pump and vacuum equipment manufacturing;Pump and vacuum equipment sales;Terminal metering equipment sales;Pharmaceutical special equipment sales;Environmental protection special equipment sales;Gas Compression Machinery Manufacturing;Gas Compression Machinery Sales;Auto Parts Wholesale;Anti-corrosion material sales;paint sales(Free of Hazardous Chemicals);paint manufacturing(Free of Hazardous Chemicals);Manufacturing of thermal and acoustic insulation materials;Manufacturing of lightweight building materials;Sales of special equipment for oil drilling;Metering technical service;Wholesale of computer software, hardware and auxiliary equipment;Environmental Consulting Services;Energy saving management service;Computer and Office Equipment Repair;Software outsourcing service;Network and Information Security Software Development;Refrigeration,Air Conditioning Equipment Sales;Information system integration service;Contract Energy Management;Stationery Wholesale;culture,Manufacturing of office equipment;Lighting Sales;housing lease;Motor manufacturing;Fabrication of Metal Structures;motor manufacturing;Sales of new energy vehicle battery replacement facilities;Rail Transit Communication Signal System Development;Technical Services,technology development,technical consulting,Technology Exchange,technology transfer,Technology Promotion.(Except for projects subject to approval by law,Carry out business activities independently in accordance with the law with a business license)licensed items:Electrical Installation Services;Manufacture of civil nuclear safety equipment;Installation of civil nuclear safety equipment;Power generation business,Transmission business,for(match)Electric business;Construction labor subcontracting;Construction Engineering Construction;power transmission,powered by,Installation of power receiving facilities,Repair and Test.(Items subject to approval by law,Business activities can only be carried out after approval by relevant departments,The specific business items are subject to the approval documents or licenses of relevant departments)

Dongying Jinfeng Zhengyang Technology Development Co., Ltd., established on 2003-09-03, Business scope includes oil well energy-saving technical services;Electrical Equipment,Electrical components,Fire equipment,lighting device,Bridge,Instrumentation,the fence,Guardrail production,Sales,Installation and Maintenance;computer,Manufacturing of industrial control computers and systems,design,Sales,Installation and Maintenance;computer software,the hardware,Sales and maintenance of consumables and auxiliary equipment;computer software development;Network technology development;Drilling accessories,Light Textiles,hardware tools,Electrical Equipment,Chemical Products(Free of dangerous goods and precursor chemicals),electrical appliance,Communication equipment(Does not include ground satellite receiving and wireless transmitting devices),Environmental protection and energy saving equipment,electric equipment,Daily necessities,valve,steel,life saving supplies,Local products(Fireworks not included),dry battery,storage battery,Low voltage electrical appliances,architectural hardware,Wire and cable and accessories,Explosion-proof electric heating cable,Disinfection supplies,Medical Device Sales;network engineering(without internet);Automation control system integration;Special equipment testing;signage,Prefabricated house design,make,Installation and sales;Network equipment,electronic product,drone,camera equipment,Security equipment,Automatic control system equipment and accessories,Lightning protection equipment,Drilling equipment and accessories,Pumps and Accessories,Industrial and mining equipment and accessories,Ship equipment and accessories,Experimental equipment and accessories,water treatment equipment,Electric lifting platform,Explosion-proof electrical appliances and accessories,Metering device,Dosing device,Instrument cabinet,wind energy,Electric energy and light energy equipment,UPSpower supply,furniture,doors and windows,R&D of metal products,Production,Sales and installation;Mechanical equipment and accessories(No special equipment),auto parts,Diesel Engine Parts,Power fittings,Electrical materials,Insulation Materials,felt,outdoor product,Labor protection supplies,ceramics,cleaning tools,Glass product,FRP products,Insulation products,rubber products(Does not contain medical),plastic products(Does not contain medical),Linoleum,oil boom,PVCpipe,PPRpipe,metallic material,Sealing material,Anti-corrosion insulation material,waterproof material,decorative material,Packaging Materials,building materials,filter material,sieve,Non-woven,rope,Search,cable,canvas,tent,Woven bag,Stationery(no books),Sports equipment processing,Sales;Weak current project;motor vehicle maintenance;Self-management and agency of various commodity import and export business(Except for goods that are restricted or prohibited from import and export by the state).(Items subject to approval by law,Business activities can only be carried out after approval by relevant departments)

ConocoPhillips Co. explores, produces, refines, and wholesales oil and natural gas. The company is headquartered in DE.

Shaanxi Aifike Energy Technology Co., Ltd., established on 2019-10-12, Business scope includes general items:Technical Services,technology development,technical consulting,Technology Exchange,technology transfer,Technology Promotion;Emerging energy technology research and development;Big data service;Manufacturing of computer software, hardware and peripheral equipment;software development;Mechanical and electrical equipment manufacturing;Machinery sales;electronic,Mechanical equipment maintenance(No special equipment);Sales of electrical machinery and equipment;Mechanical equipment research and development;Computer System Services;Communication equipment sales;Instrument sales;Instrument Manufacturing;Intelligent Instrument Manufacturing;Manufacturing of calculator equipment;Information system integration service;Artificial intelligence industry application system integration service;Foreign contracted projects;Intelligent control system integration;Industrial automatic control system device manufacturing;Manufacture of power distribution switch control equipment.(Except for projects subject to approval by law,Carry out business activities independently in accordance with the law with a business license)licensed items:Inspection and testing service;Sales of special products for computer information system security;Building Intelligent Engineering Construction;Construction Engineering Survey;generate electricity,power transmission,Power supply business;General contracting of housing construction and municipal infrastructure projects;Various construction activities;Construction labor subcontracting;Construction of fire protection facilities;Residential interior decoration;construction professional work;building demolition work(Except for blasting operations).(Items subject to approval by law,Business activities can only be carried out after approval by relevant departments,Specific business projects are subject to approval results)

Shengli Oilfield Huabin Welfare Electromechanical Co., Ltd., established on 1997-04-17, The business scope includes multiphase flow continuous metering devices,Electrical Equipment,electric equipment,Electrical Equipment,Petroleum machinery,Fresh air system,air source heat pump,Wujinjiaodian,burner,Inverter,automation equipment,motor,power transformer,High and low voltage control cabinet,High and low voltage distribution cabinet,car locator,Bridge,gateway,wireless bridge,cement products,insulator,cement pole,Insulation Materials,Power transmission and transformation fittings,laboratory instrument,Instrumentation and accessories,Oil well mobile calibration device,Oil well intelligent calibration device(Weighing)production,Sales,repair,Install;Ground source heat pump equipment manufacturing,Sales,Technical service and related operation system design,integrated,Install;Valve Sales and Repair,Office Supplies,Computer hardware and software and consumables,Computer Information System Integration,Application software development,R&D, manufacturing and sales of new energy equipment and accessories;home appliances,furniture,communication,electronic product,IC products,Intelligent system equipment,daily necessities,office equipment,Office automation equipment,Low voltage components,Explosion-proof electrical appliances and accessories,Energy saving and environmental protection equipment,Sanitary Ware,stove,cabinet sales,Install,debugging,repair;Sales of pumps,lease;construction work,Mechanical and Electrical Engineering,Power Engineering,Construction mechanical and electrical installation engineering,Power transmission and transformation project,Electronics and Intelligent Engineering,City and road lighting engineering,Petrochemical Engineering,Environmental Engineering,Fire Engineering,Sewage treatment engineering construction;Design and Construction of Building Decoration and Decoration Engineering;Energy saving service;Contract Energy Management;electrical engineering,cathodic protection,Security,Oil Wells and Gathering,digital information,automation,Liquid level measurement,distribution network,Heavy oil heating technology service;heating service;Shallow oil and gas well exploration and development and technical services;solar energy,wind energy,Design, development and technical services of biomass new energy power generation projects;geothermal system,waste heat,Residual pressure design and development and technical services.(Items subject to approval by law,Business activities can only be carried out after approval by relevant departments)

Dongying Nanfang Electric Co., Ltd., established on 2002-01-08, The business scope includes complete sets of high and low voltage electrical appliances,Oil well control cabinet,Frequency counter,distribution box,Power fittings,Anti-bird placeholder,bird repellent device,insulator,the fence,fence,Electrical components,household appliances,PVCPipe Fittings,AC contactor,Ground wire,Security equipment,Monitoring equipment and accessories,Power distribution cabinet,Coil,Cable accessories,Electrical material production,Sales;fuse,Isolation switch,insulating rod,lightning arrester,transformer,Insulation Materials,Transformer,Wall bushing,Cable tray,cable head,Lightning protection equipment,lighting device,Electrical materials,Instrumentation and accessories,Explosion-proof electrical appliances and accessories,Metering device products,High voltage circuit breaker,lighting fixtures,Communication equipment,Household Appliance Materials,Explosion-proof lamps,High and low voltage electrical equipment and accessories,instrument box,Fire equipment,Electric heating cable,Box type substation,Low voltage electrical appliances,Component R&D,Production,Sales and installation;Wire and Cable,Copper row,steel,Computers and Consumables,Petroleum machinery equipment and accessories,High voltage electroscope,Protection measurement and control plug-in,hardware tools,Local products,office furniture,Office Supplies Sales;Electrical equipment installation and maintenance;Road Freight Operation;Warehousing Services;car rental.(Items subject to approval by law,Business activities can only be carried out after approval by relevant departments)

Shengli Oilfield Ruixing Petroleum Equipment Co., Ltd., established on 2006-10-26, Business scope includes stainless steel products,cupboard,Electrical Equipment(Passenger cars with less than nine seats are not included),Petroleum Machinery Parts,Labor protection supplies,Office Supplies,Explosion-proof electrical appliances,Sales of non-standard riveted parts;stain remover,lookout,Color steel room,detergent,motor cleaner,Production and sales of submersible motor oil;car rental(Car rental not included);Control cabinet(Screen),distribution box(plate),Motor processing sales and maintenance;Labor service(Only inside the oil field,Does not include job introduction);Electrical installation works;Contract Energy Management;New energy technology service;Ground source heat pump,Sales and maintenance of air-conditioning and refrigeration equipment.(Items subject to approval by law,Business activities can only be carried out after approval by relevant departments)

Provides oil and gas drilling & exploration services

Professional Rental Tools LLC provides oilfield rental equipment and services. It offers proframe coiled tubing lift frame, hoss wireline lift frame, surface test tree, quick union and lubricator valve, spanner system, procomp tower, intervention work tower and accessories. The company was founded on March 15, 2012 and is headquartered in Lafayette, LA.

Ningbo Jianhui Intelligent Control Technology Co., Ltd., established on 2020-01-15, Business scope includes general items:Emerging energy technology research and development;software development;Motor and its control system research and development;Technical Services,technology development,technical consulting,Technology Exchange,technology transfer,Technology Promotion(Except for projects subject to approval by law,Carry out business activities independently in accordance with the law with a business license).licensed items:Technology Import and Export;Import and export;Import and export agency(Items subject to approval by law,Business activities can only be carried out after approval by relevant departments,Specific business projects are subject to approval results).The following limited branch operations:General project:Manufacture of special equipment for oil drilling;Manufacturing of Power Electronic Components;Manufacturing of electronic components and electromechanical components;Electronic special equipment manufacturing;Manufacturing of industrial control computers and systems(Except for projects subject to approval by law,Carry out business activities independently in accordance with the law with a business license).

Shengli Xinda New Materials Co., Ltd., established on 2004-02-16, Business scope includes licensed projects:Special equipment manufacturing;Hazardous chemical packaging and container production;Import and export;Import and export agency;electric wire,cable manufacturing.(Items subject to approval by law,Business activities can only be carried out after approval by relevant departments,The specific business items are subject to the approval documents or licenses of relevant departments)General project:Manufacture of glass fiber reinforced plastic products;Sales of glass fiber reinforced plastic products;Special Equipment Sales;Manufacture of graphite and carbon products;Sales of graphite and carbon products;synthetic material manufacturing(Free of Hazardous Chemicals);Synthetic Materials Sales;Metal surface treatment and heat treatment;Specialty Chemicals Sales(Free of Hazardous Chemicals);Technical Services,technology development,technical consulting,Technology Exchange,technology transfer,Technology Promotion;Machinery and Equipment Leasing;Non-residential real estate leases;Manufacture of special equipment for oil drilling;Sales of special equipment for oil drilling;furniture manufacturing;furniture sales;Manufacturing of underwater systems and operating equipment;Sales of subsea systems and work equipment;Marine supporting equipment manufacturing;Door and window manufacturing and processing;Door and window sales.(Except for projects subject to approval by law,Carry out business activities independently in accordance with the law with a business license)

Sinopec Petroleum Engineering Technology Service Co., Ltd., established on 2012-06-28, Business scope includes construction general contracting,Professional contractors,Labor subcontracting;Construction Project Management;Providing services for onshore and offshore oil and gas extraction;Engineering and Technology Research and Experimental Development;construction work preparation;Sales of machinery and equipment,Wujinjiaodian,computer,Software and Auxiliary Equipment;Machinery and Equipment Leasing;Energy and Mineral Geological Exploration,Solid Mineral Geological Exploration;Geological Exploration Technical Services;oil,Investment in natural gas and mineral energy projects;Organization of enterprises with manufacturing operations to manufacture metal structures,metal tools,metal pressure vessel,General instrumentation,Special Instruments,chemical reagent,chemical additives,Specialty Chemicals(including oilfield chemicals)and mine,metallurgy,Construction Special Equipment;Organize enterprises with foreign contracting project permits to contract overseas petroleum projects,natural gas engineering,chemical engineering,bridge engineering,Road construction,building engineering,Water Resources and Hydropower Engineering,Municipal public works,Steel structure engineering,Power Engineering,Fire facilities engineering,Industrial installation engineering and domestic and international bidding projects;Labor dispatch;Import and export,Agent import and export,Technology Import and Export.(After receiving this license,You should go to the Housing and Urban-Rural Development Department to obtain an administrative permit,File with the Commerce Commission.;Enterprises independently choose operating projects according to law,Carry out business activities;Items subject to approval by law,Carry out business activities in accordance with the approved content after approval by relevant departments;Do not engage in the business activities of projects prohibited and restricted by the city's industrial policies.)

CNPC Chuanqing Drilling Engineering Co., Ltd., established on 2008-07-18, Business scope includes general items:Engineering and Technology Research and Experimental Development;Mineral dressing;Engage in investment activities with own funds;Technical Services,technology development,technical consulting,Technology Exchange,technology transfer,Technology Promotion;Engineering technical service(planning management,survey,design,Except supervision);Oil and Gas Technical Services;Industrial Internet Data Service;data processing services;Data processing and storage support services;software development;Information system operation and maintenance services;Information Technology Consulting Services;Resource recycling technology research and development;Soil Pollution Control and Restoration Services;Environmental emergency management service;Environmental Protection Monitoring;Eco-environmental material manufacturing[Branch operation];Water Environment Pollution Prevention and Control Services;Atmospheric Environmental Pollution Prevention and Control Services;Soil Environmental Pollution Prevention and Control Services;Solid Waste Treatment;Import and export;Import and export agency;Technology Import and Export;Foreign contracted projects;Refined oil wholesale(Free of Hazardous Chemicals);Lubricant sales;Chemical product sales(No licensed chemical products);Sales of office equipment consumables;Fire Equipment Sales;Sales of labor protection products;Auto New Car Sales;Machinery sales;Mechanical Parts,Parts sales;Sales of special equipment for oil drilling;Special Equipment Sales;Petroleum product sales(Free of Hazardous Chemicals);electronics sales;internet sales(Except for products that require a license for sale);software sales;Auto Parts Retail;sales agent;Information security equipment sales;Security equipment sales;Catering Management;Land use right lease;housing lease;Non-residential real estate leases;Machinery and Equipment Leasing;Small and mini bus rental business service;emergency services;Safety technical training for special operators;business training(Does not include education and training,Vocational skills training and other licensed training);Unit logistics management service;Manufacturing of Specialty Chemical Products(Free of Hazardous Chemicals)[Branch operation];Manufacture of non-metallic mineral products[Branch operation];R&D of metal products;General equipment manufacturing(Does not include special equipment manufacturing)[Branch operation];Manufacturing of special equipment(Manufacture of licensed professional equipment not included)[Branch operation];Instrument Manufacturing[Branch operation];Metalwork Repair;Mechanical equipment research and development;General Equipment Repair;Domestic Freight Forwarding;Domestic container cargo transportation agency;Loading and unloading;Storage equipment rental service;Operation of Road Freight Transport Station;International Freight Forwarding;Environmental protection special equipment sales;property management;Motor Vehicle Repair and Maintenance(Except for projects subject to approval by law,Carry out business activities independently in accordance with the law with a business license).licensed items:Indoor environment detection;accommodation service;Catering Services;Gas operation;Water production and supply;road freight transport(Does not contain dangerous goods);Construction Engineering Construction(Items subject to approval by law,Business activities can only be carried out after approval by relevant departments,The specific business items are subject to the approval documents or licenses of relevant departments).

Sinopec Shengli Oilfield Construction Engineering Co. Ltd. is a Chinese company located in Dongying and ultimately controlled by the Government of China. The firm provides civil engineering services.