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.

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.

Daqing Oilfield Co., Ltd. Testing Technology Service Branch, established on 2000-04-28, Business scope includes and logging,Perforation,Research and development of geophysical technology related to wireline operations such as well testing,consult,Transfers and Services;Logging,well test,test,Design and construction of detection device,Logging,Detection and Calibration of Well Testing Instruments;Logging,well test,Manufacture of testing instrumentation and general instrumentation,Sales and Service,Research and development of computer application technology and software,road general cargo transportation.

Sinopec Corp. Shengli Oilfield Branch Exploration and Development Research Institute, established on 2006-03-22, Business scope includes printing of internal materials and publications(The validity period is subject to the license);Geological Exploration Deployment,Development program preparation,Analytical Experimental Technology,oil and gas exploration,development plan,resource evaluation,Modern well testing technology,Computer Application and Software Development,Technology information,file service,Maintenance of precision instruments,mapping,Technical Services,to develop,consult,transfer.(Items subject to approval by law,Business activities can only be carried out after approval by relevant departments)

Mobil Corp. operates primarily in the petroleum industry. The company is headquartered in The Woodlands, TX.

Shaanxi Yanchang Petroleum (Group) Co., Ltd. engages in the oil and gas exploration. It focuses on development, comprehensive utilization, and deep transformation in energy chemical. Its business center covered oil and gas exploration; oil and gas development; petroleum refining and chemical industry; oil, gas, coal, and salt comprehensive chemical industry; pipeline transportation; product sales; construction equipment manufacturing; and technology research and development. Its products and services include oil and gas products; chemical products; equipment products; and other products such as raw coal, coke, coal tar, coal chemical derivatives, and grid- connected power generation. The company was founded in 1905 and is headquartered Xi'an, China.

Sinopec Sales Co., Ltd. Zhejiang Taishun Mufeng Gas Station, established on 2000-08-03, Business scope includes licensed projects:Hazardous Chemicals Management;Tobacco retail;food sales;Refined oil retail(Free of Hazardous Chemicals)(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).General project:Lubricant sales;General merchandise sales;car wash service;Motor vehicle charging sales;Sales of Class II Medical Devices;Advertising Design,acting;advertisement making;advertising(Except for projects subject to approval by law,Carry out business activities independently in accordance with the law with a business license).(Engage in business activities within the business scope of the head office)

Daqing Oilfield Design Institute Co., Ltd., established on 2001-11-05, Business scope includes engineering consulting,design,supervision,survey,surveying and mapping,Geotechnical Engineering and General Contracting;Environmental Impact Assessment of Construction Projects;Engineering Technology Development;Oilfield Chemistry,Materials Technology Research;chemical additives(Free of Hazardous Chemicals,Inflammable and explosive products and highly toxic),Anti-corrosion material production,Sales;Processing of special equipment for oil drilling,Sales;Environmental monitoring;Environmental Protection Acceptance Investigation and Monitoring of Project Completion;Energy saving and emission reduction technology development service consulting;security evaluation;Safety inspection of fire protection facilities;oil gas water light hydrocarbon,Chemicals,Building material analysis inspection and metrological verification;Occupational Hygiene Evaluation Test,Geographic information and digital technology services Foreign economic and technical cooperation business;Labor dispatch;Conference and Exhibition Services;Hotel services and catering services;Journal publishing;advertising.

Shaanxi Yanchang Petroleum (Group) Co., Ltd. Research Institute, established on 2008-05-27, Business scope includes petroleum,Natural Gas Exploration and Development,Drilling technology,Research on Energy and Chemical Technology,to develop,application;Geophysical Processing Interpretation,Application Research of Oilfield Chemical Additives;Oil and gas field equipment development and information technology research;Oil and gas field and chemical industry related planning consultation,design,Decision evaluation and technical services,Technical Training(Only inside the system),technology transfer, etc..(Items subject to approval by law,Business activities can only be carried out after approval by relevant departments)

Petroleum Engineering Technology Research Institute of Zhongyuan Oilfield Branch of China Petrochemical Corporation, established on 2000-09-30, Business scope includes petroleum,natural gas(sour gas field)Mining technology and information research,to develop,application,Drilling and completion and surface engineering design supervision and services,oil recovery,Pick(Note)Preparation of Gas Engineering Scheme,Process technical measures design,Supervision and field application,test oil(gas)Engineering scheme design,Supervision and technical services,Downhole operation engineering scheme and design,engineering supervision,Oil and gas reservoir dynamic monitoring,Oil(gas,water)test sample,assay,analyze,Research and application of energy saving and environmental protection technology,Anti-corrosion technology research and application(Corrosion Monitoring and Detection,Cathodic protection detection,Anti-corrosion technical solutions and technical services),Research on Sewage Treatment Technology,Water quality testing and technical services,Oil and gas and anti-corrosion product quality inspection,Chemical products for petroleum production(Does not contain dangerous goods)quality inspection,Oilfield entry fluid configuration,Downhole Process String Research,Development of downhole tools,to assemble,Sales,Maintenance and technical service,Rubber products for downhole tools(contain0type sealing ring)Research,production and sales,Downhole tool product quality inspection,valve,Wellhead,Air tightness detection of downhole tools and accessories,Submersible cable,Submersible pump unit,Assembly of screw pump unit and supporting parts,Sales,Maintenance and technical service,Submersible electric pump intelligent control system,Development and application of downhole detection system,oil,Professional instruments and equipment in the field of natural gas engineering,Special instrument vehicle leasing and technical services.(Involved in licensing projects,It should be operated after obtaining the permission of the relevant department)

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.

Yanchang Oil Field Co., Ltd., a subsidiary of Province of Shaanxi, is a company headquartered in China. The firm provides oil and gas services.

Shanghai Petrochemical Research Institute of China Petroleum & Chemical Corporation, established on 2000-04-27, Business scope includes petrochemical,Fine Chemicals,Polymer chemical industry,Environmental friendly,catalyst,Computer hardware and software,information network,electronic,Industrial automation and other professional technology"Four skills"Serve,Self-developed pilot products in the above professional fields,Testing Services for Petrochemical Products. [Items subject to approval by law,Business activities can only be carried out after approval by relevant departments]

Petroleum Engineering Technology Research Institute of China Petroleum & Chemical Corporation Shengli Oilfield Branch, established on 2006-03-22, The business scope includes new technology in the process of oil and gas development,new technology,Research and development of new products,Product sales,Technical Services(Except where prohibited by country restrictions);Computer software development;Water Treatment Technology Research;Quality inspection of drilling and oil production special technology products;Mechanical product processing(Items subject to approval by law,Business activities can only be carried out after approval by relevant departments).

Changqing Engineering Design Co., Ltd., established on 1999-10-21, Business scope includes general items:Oil and Gas Engineering,Chemical and petrochemical engineering,construction work,decoration works,Communication Engineering,Municipal Engineering,Power Engineering,Road construction,Fire Engineering,Anti-corrosion insulation project,Automation Control Engineering,Light steel structure engineering,Environmental Engineering,Geotechnical Engineering,General Contracting of Pipeline Works,consult,design;Engineering cost consulting business;Engineering bidding agency;Engineering project management and technical services;Oil installation,Research and development of natural gas installations,Sales;Research and development of computer technology and products,Sales;account Serive;Catering Services(limited branch operation).(Except for projects subject to approval by law,Carry out business activities independently in accordance with the law with a business license)licensed items:Construction labor subcontracting;Import and export;Technology Import and Export;accommodation service;Mapping service;Inspection and testing service;Construction Project Supervision;Construction Engineering Survey.(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)

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.

Sinopec Corp. Shengli Oilfield Branch Geophysical Research Institute, established on 2006-03-22, Business scope includes seismic data processing,explain,computer technology development,Service and Applied Research,Information Consulting,Computer and Auxiliary Equipment Repair,Computer site design and decoration consultation,Equipment matching,Air-conditioning and refrigeration engineering design and maintenance,Passenger and freight elevator lift maintenance,Office automation equipment,Consumables,Spare parts sales,Computer Sales Repair Lease,Software technology service development transfer,Computer application technology development training consultation,Sales, installation and commissioning of network engineering and hardware equipment,Instrumentation,electronic product,Communication product sales,mapping.(Items subject to approval by law,Business activities can only be carried out after approval by relevant departments).

Jiangsu Huayang Liquid Carbon Co., Ltd., established on 1996-12-11, The scope of business includes the purification of carbon dioxide,processing,Sales;carbon dioxide capture,use,archive,Oil displacement technology development and project design,construction,Install;Carbon dioxide cylinder detection,food additives(liquid carbon dioxide)Production,Sales;Industrial Automation Equipment,Low-voltage complete switchgear,Equipment,R&D of instrumentation,Production,Sales,Technical service and import and export business;Oilfield chemical additives(Excluding hazardous chemicals)production,Sales;Oilfield supplies,electrical equipment,Chemical raw materials(Excluding hazardous chemicals)promotion of;Oil and Onshore Gas Extraction,carbon dioxide mining;oil storage;road freight transport;Wholesale of petroleum products,retail,Refined oil storage;Hazardous Chemicals Management(Operate according to the scope listed in the license);gas(Free of Hazardous Chemicals)promotion of;Carbon asset consulting service,Technology development in the field of energy saving and emission reduction,technical consulting,technology transfer,Technical Services,Environmental technology research and development and consulting,Ecological Restoration Project,Environmental Engineering Design and Construction;waste(Hazardous chemical waste is excluded)Disposal,use;oil,Design of chemical engineering projects,construction,Install;Power engineering construction and maintenance;natural gas,oil,Geothermal technology development,technical consulting,Technology transfer and technology promotion services;Geological Exploration of Energy Mines;Engineering Investigation,design;Contract Energy Management Services.(Items subject to approval by law,Business activities can only be carried out after approval by relevant departments) licensed items:oil,Natural gas pipeline storage and transportation;road freight transport(Contains dangerous goods);mineral resources(non-coal mine)mining;Mineral Resource Exploration(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) General project:Gas Compression Machinery Manufacturing;Gas Compression Machinery Sales;Information Technology Consulting Services;Manufacturing of Specialty Chemical Products(Free of Hazardous Chemicals);Specialty Chemicals Sales(Free of Hazardous Chemicals)(Except for projects subject to approval by law,Carry out business activities independently in accordance with the law with a business license)