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.

China Petrochemical Corporation (Sinopec Group) is a super-large petroleum and petrochemical enterprise group, established in July 1998 on the basis of the former China Petrochemical Corporation. Sinopec Group is a state-owned company solely invested by the state, functioning as a state-authorized investment organization in which the state holds the controlling share. Headquartered in Beijing, Sinopec Group has a registered capital of RMB 231.6 billion. The board chairman of Sinopec Group is its legal representative. Sinopec Group executes the investor rights over related state assets owned by its full subsidiaries, controlled companies and share-holding companies. These rights include receiving returns on assets, making major decisions and appointing management teams. The Group operates, manages and supervises state assets according to related laws, and shoulders the corresponding responsibility of maintaining and increasing the value of state assets. China Petroleum and Chemical Company (Sinopec Corp.), controlled by Sinopec Group, issued H-shares and A-shares at overseas and home respectively in October 2000 and August 2001 and was listed on stock markets in Hong Kong, New York, London and Shanghai. Sinopec Group’s key business activities include: industrial investment and investment management; the exploration, production, storage and transportation (including pipeline transportation), marketing and comprehensive utilization of oil and natural gas; the production, marketing, storage and transportation of coal; oil refining; the storage, transportation ,wholesale and retail of oil products; the production, marketing, storage, transportation of petrochemicals, natural gas chemicals, coal chemicals and other chemical products; the exploration, design, consulting, construction and installation of petroleum and petrochemical engineering projects; the overhaul and maintenance of petroleum and petrochemical equipments; the research and development, manufacturing and marketing of electrical and mechanical equipments; the production and marketing of electricity, steam, water and industrial gas; the research, development, application and consulting services of technology, e-business, information and alternative energy products; the import and export of self-support and agent commodity and technology; foreign project contracting, invite bidding, labor export; the international storage and logistics business. Sinopec Group ranked the 3rd in the Fortune Global 500 in 2014.

GEODynamics creates and delivers downhole solutions that enable enhanced well economics, performance and lifespan. The company is a researcher, developer and manufacturer of engineered solutions to connect the wellbore with the formation in oil and gas well completions. GEODynamics’ solution-oriented product lines span the life of a well from advanced perforating systems (including patented CONNEX® reactive perforating technologies, FracIQ™ Limited Entry Perforating System, and SandIQ™ Optimized Perforating for Diversion) to an innovative line of unconventional well completion tools (including the patented SmartStart Plus™ Time Delay Test & Frac Valve, FracTrap™ Composite FracPlug System, and the FracDock™ family of patented bigbore frac solutions) and well abandonment tools (including Legacy™ plugs and cement retainers, setting equipment, and jet cutters).

Rheinmetall AG is a holding company, which engages in the development and sale of components, systems, and services for the security and civil industries. It operates through the following segments: Vehicle Systems, Weapon and Ammunition, Electronic Solutions, Sensors and Actuators, Materials and Trade, and Others. The Vehicle Systems segment offers a diverse portfolio of vehicles, including combat, support, logistics, and special vehicles. The Weapon and Ammunition segment includes products and solutions for threat-appropriate, firepower as well as comprehensive protection. The Electronic Solutions segment is involved in the chain of effects in the system network, from sensors and the networking of platforms and soldiers to the automated connection of effectors, as well as solutions for protection in cyberspace. The Sensors and Actuators consists of a product portfolio with exhaust gas recirculation systems; throttle valves, control dampers, and exhaust flaps for electromotors; solenoid valves; actuators and valve train systems; oil, water, and vacuum pumps for passenger cars, commercial vehicles, and light and heavy-duty off-road applications; as well as industrial solutions. The Materials and Trade segment focuses on the development of system components for the basic motor. The company was founded by Heinrich Ehrhardt on April 13, 1889 and is headquartered in Duesseldorf, Germany.

Part of Schlumberger NV, Schlumberger Technologies, Inc. is a company headquartered in Moorestown, NJ, that provides oilfield services such as distributing oil and gas information technologies and providing consulting services.

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.

Saudi Arabian Oil Co. is engages in the production, transportation, and sale of energy and chemicals. It also offers prospecting, exploring, drilling, extracting, processing, manufacturing, refining and marketing hydrocarbon substances. The company operates through the following segments: Upstream, Downstream, and Corporate. The Upstream segment consists of exploring for, developing and producing crude oil, natural gas and natural gas liquids exploration, field development and production. The Downstream segment includes refining and petrochemical manufacturing, supply and trading, distribution and power generation, logistics, and marketing of crude oil and related services to international and domestic customers. The Corporate segment refers supporting services including human resources, finance and IT not allocated to Upstream and Downstream. Saudi Arabian Oil was founded on May 29, 1933 and is headquartered in Dhahran, Saudi Arabia.

Chongqing Nishang Technology Co., Ltd., established on 2018-01-11, Business scope includes technology development of computer software and hardware,technology transfer,technical consulting,Technical Advisory Services;computer system integration;Conference and Exhibition Services;Undertake approved cultural and artistic exchange activities;Enterprise Marketing Planning;design,make,acting,Publish domestic and foreign advertisements;Corporate image design;brand design;arts and crafts design;Sales:Audio-visual products(Items subject to approval by law,Business activities can only be carried out after approval by relevant departments),stationery,sporting goods,Office Supplies,electronic product,arts and crafts(Does not contain ivory and its products),daily necessities,communication equipment,Computer hardware and software and auxiliary equipment;E-commerce information consultation;Intellectual property agency. [Items subject to approval by law,Business activities can only be carried out after approval by relevant departments]***

Schlumberger Technology BV, a subsidiary of Schlumberger NV, is a Dutch company located in The Hague. The firm provides gas and oil exploration services.

China Petrochemical Corporation Northwest Oilfield Branch, established on 2002-10-30, Business scope includes petroleum,Natural Gas Exploration and Development,mining,Sales and pipeline transportation;Flammable liquids,compressed gas,Production and sales of liquefied gases;Petroleum and petrochemical raw materials,Procurement of equipment and parts,Sales.;Hazardous Chemical Production,Oil and Gas Exploration,Development and production safety management(Only branches that have obtained safety production licenses can operate);Hazardous Chemicals Management(Only branches that have obtained a hazardous chemical business license can operate).;(Items subject to approval by law,Business activities can only be carried out after approval by relevant departments)

Utex Industries custom designs and manufactures engineered seals and components made of high performance armored elastomers, polymers, urethanes, composites, and mechanical seals for clients in the oil and gas, water distribution, aerospace, and industrial markets. Utex Industries has manufacturing facilities totally more than 700,000 square feet of space throughout nine divisions in Texas and Europe. It acquired Applied Rubber Technology in 1994, AccuSeal in 1999, CAM Speciality Products and DuraQuest in 2008, and Arefco in 2011. Founded in 1969 as the successor of Universal Packing and Gasket, its headquarters is in Houston in Texas in the United States, with branches in Britain, Singapore, and Brazil.

Part of GTI Energy, Gas Research Institute is an American company located in Chicago, IL, that provides research, development, and commercialization programs for the natural gas industry.

Baker Hughes, Inc. is a private company headquartered in Houston, TX. The firm manufactures oilfield equipment.

Chongqing Chuyu Technology Co., Ltd., established on 2011-09-07, Business scope includes licensed projects:Radio and television program production and management,TV drama production,audiovisual production,Information network dissemination of audio-visual programs,film distribution,Electronic publication production(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:Computer software and hardware development,Sales,Computer Network Technology Development,Computer System Services,Computer and communication equipment rental,Medical equipment rental,Office equipment rental service,brand management,Storage equipment rental service,business management,Park Management Services,Commercial Complex Management Services,Legal advice(Does not include law firm business),market survey,tax service,marketing planning,Information Consulting Service(Not including licensing information consulting services),Corporate Image Planning,Advertising Design,acting,Conference and Exhibition Services,office services,Graphic design and production,Ticket agency service,Second-hand car trading market operation,advertising(non-broadcasting station,television station,Newspaper Publishing Unit),Business registration agency,advertisement making,Computer and Office Equipment Repair,Household Appliances Repair,Motor Vehicle Repair and Maintenance,electronic,Mechanical equipment maintenance(No special equipment),Camera and Video Production Services,Film Production Services,Personal Internet Live Streaming Service(Need to record),grain sales,Bean and potato sales,Sales of agricultural and sideline products,Forestry Product Sales,Sales of knitted textiles and raw materials,Home Appliance Sales,Games and entertainment sales,Sales of Class II Medical Devices,Metal Material Sales,Sales of building materials,Rubber Products Sales,Sales of plastic products,Electrical Equipment Sales,Broadcasting, film and television equipment sales,Metal Products Sales,Instrument sales,Office Equipment Sales,moped bike,Scooter and spare parts sales,Retailing of protective equipment for healthcare workers,Medical Mask Retail,daily mask(non-medical)Sales,Disinfectant sales(Free of Hazardous Chemicals),Sales of hygiene products and single-use medical products,Sales of labor protection products,Sales of furniture spare parts,tram sales,Sales of household appliances spare parts,Retailing of Edible Agricultural Products,needle textile sales,Cosmetics Retail,Clothing and apparel retail,Shoes and hats retail,Personal Hygiene Sales,Retail of kitchenware, sanitary ware and daily necessities,Daily necessities sales,gift flower sale,Maternal and baby products sales,Watch sales,glasses sales(Contact lenses not included),luggage sales,Stationery retail,Sporting Goods and Equipment Retailing,Jewelry Retail,musical instrument retail,Arts and crafts and collectibles retail(Except for ivory and its products),Retailing of photographic equipment and binoculars,Toy,Animation and entertainment goods sales,Auto New Car Sales,Household Appliances Retail,Retailing of computer software, hardware and auxiliary equipment,Communication equipment sales,Hardware retail,Lighting sales,furniture sales,Sanitary Ware Sales,Sales of building decoration materials,electric bike sales,Pet food and supplies retail,Single-purpose commercial prepaid card agency sales,internet sales(Except for products that require a license for sale),Aquatic product retail,Electronic Components Retail,Mechanical Parts,Parts sales,Sales of packaging materials and products,leather sales,pet sale,Optical Instrument Sales,Copy and offset printing equipment sales,Sales of electronic components and electromechanical components,Sales of architectural ceramic products,Sales of office equipment consumables,electronics sales,Watches and Timekeeping Instruments Sales,Smart home consumer device sales,Refrigeration,Air Conditioning Equipment Sales,Wholesale of edible agricultural products,Clothing and apparel wholesale,Stationery Wholesale,Wholesale of sporting goods and equipment,food delivery service,Technical Services,technology development,technical consulting,Technology Exchange,technology transfer,Technology Promotion,internet data service,Digital cultural and creative content application services,Network technology service,Big data service,software development,Information system integration service,Information Technology Consulting Services,Computer System Services,copyright agent,Intellectual Property Services,Trademark agency,Technology intermediary service,Entrepreneurial Space Services,Security equipment sales,Security technology prevention system design and construction services(Except for projects subject to approval by law,Carry out business activities independently in accordance with the law with a business license)

Part of Northrop Grumman Corp., Western Atlas International, Inc. is a company headquartered in Houston, TX, specializing in search, detection, navig., guidance, aeronautical, and naut. sys.. On January 31, 1994 Litton Industries, Inc. acquired Western Atlas International, Inc. from Dresser Industries, Inc. for $558 million.

Tiandi Science & Technology Co., Ltd. engages in the manufacture and sale of electronic products, environmental protection equipment, mining mechanical and electrical products, and scientific research products. It operates through the following business segments: Coal machinery, Safety equipment, Coal sales, Technology projects, Engineering projects, and Environmental protection equipment. Its services include underground engineering technology development, project design and contracting, enterprise management, construction project management, and development of technology related to mine construction, freezing, grouting, and drilling. The company was founded on March 24, 2000 and is headquartered in Beijing, China.

China Railway Tunnel Bureau Group Co., Ltd. is a Chinese private company located in Nanning with a presence in China and Israel. The firm provides tunnels and underground construction services.

Chevron, Inc. manufactures towing and recovery equipment. Its products include fuels and stations, gift and credit cards and motor oils and fuel & additives. The company was founded in 1969 and is headquartered in Mercer, PA.

Xian Research Inst of China Coal Tech & Eng Group Corp. is a company headquartered in Xian, China and ultimately controlled by the Government of China, that engages in geophysical surveying and other related operation.

China Railway 20th Bureau Group Co., Ltd. is a company headquartered in Xianyang, China and ultimately controlled by the Government of China. The firm operates hospitals.