China National Offshore Oil Corporation, or CNOOC Group, is a major national oil company in China. It is the third-largest national oil company in the People's Republic of China, after CNPC (parent of PetroChina) and China Petrochemical Corporation (parent of Sinopec). The CNOOC Group focuses on the exploitation, exploration and development of crude oil and natural gas in offshore China. The Group is the largest producer of offshore crude oil and natural gas in China and one of the largest independent oil and gas exploration and production companies in the world. The Group mainly engages in exploration, development, production and sale of crude oil and natural gas. The Group’s core operation areas are Bohai, Western South China Sea, Eastern South China Sea and East China Sea in offshore China. Overseas, the Group has oil and gas assets in Asia, Africa, North America, South America, Oceania and Europe. As at 31 December 2015, the Group owned net proved reserves of approximately 4.32 billion BOE, and its average daily net production was 1,358,022 BOE (unless otherwise stated, all amounts of reserve and production in this report include our interests in equity method investees). The Group had total assets of approximately RMB664.4 billion.

CNOOC China Ltd. produces oil and gas in China. It provides prospecting, refinement and processing, and sale of offshore oil and natural gas products. The company also offers offshore petroleum exploration, development, production, and sales. CNOOC China was founded in 1999 and is headquartered in Beijing, China.

CNOOC Research Institute Co., Ltd., established on 2000-03-02, Business scope includes chemical products;Oil and Gas Exploration,development project,Drilling Engineering,Oil and gas field surface engineering,Pipeline Engineering,Oil and gas depot engineering,Oil and gas processing engineering,Oil and gas field chemical industry and comprehensive utilization engineering,New energy engineering design and related technology research;Environmental Impact Assessment of Petroleum Development Projects,Project economic evaluation and project management related to the above business;Import and export business;technology development,Technology Promotion,technology transfer,technical consulting,Technical Services;selling computers,Software and Auxiliary Equipment,Equipment,hardware products;Machinery and Equipment Leasing.(Market entities independently choose business projects in accordance with the law,Carry out business activities;Sales of chemical products and 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 industrial policies of the state and this city.)

China National Petroleum Corporation (CNPC) is an integrated international energy company. Based in China, we have oil and gas assets and interests in over 30 countries in Africa, Central Asia-Russia, South America, the Middle East and the Asia-Pacific. CNPC is China's largest oil and gas producer and supplier, as well as one of the world's major oilfield service providers and a globally reputed contractor in engineering construction, with businesses covering petroleum exploration & production, natural gas & pipelines, refining & marketing, oilfield services, engineering construction, petroleum equipment manufacturing and new energy development, as well as capital management, finance and insurance services. - Crude output: 110.33 million tons per year - Natural gas output: 79.86 billion cubic meters per year - Crude oil production: 53% of China's total - Natural gas production: 74% of China's total - Crude runs: 147.16 million tons per year - Domestic service stations: 19,840 - Domestic pipelines: 66,801 kilometers, including 16,369 kilometers for crude oil (nearly 67% of China's total), 40,995 kilometers for natural gas (77% of China's total) and 9,437 kilometers for refined products ( 48% of China's total) - Providing oilfield services and engineering construction in 63 countries around the world.

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.

Aspin Kemp & Associates Holding Corp. operates as a system integrator which focuses on energy efficiency in diesel, island, and micro grid power stations. It innovates, manufactures, installs, and supports power generation and energy assets for marine, offshore oil and gas, and land based industries. The company was founded by Jason Aspin and Neale Kemp in 1996 and is headquartered in Montague, Canada.

China National Petroleum Corp. Drilling Research Institute (doing business as CNPC Drilling Research Institute) is a company headquartered in China ultimately controlled by the Government of China that produces, drills and supplies oil and gas products.

Baoji Oilfield Machinery Co. Ltd. is a company headquartered in Baoji, China and ultimately controlled by the Government of China. The firm manufactures and distributes oilfield machinery and equipment.

Q'Max Solutions, Inc. provides solutions for local drilling needs. The firm offers solutions and services in drilling and completion fluids, solids control and waste management, wellbore cleanup, transportation services and technical testing and analysis services. The company was founded in 1993 and is headquartered in Calgary, Canada.

Powerchina Zhongnan Engineering Corp. Ltd. is a company headquartered in Changsha, China and ultimately controlled by the Government of China, that provides hydraulic engineering services.

China Oilfield Services Ltd. is an investment holding company, which engages in the provision of offshore oilfield services. It operates through the following segments: Drilling Services, Well Services, Marine Support Services, and Geophysical Acquisition and Surveying Services. The Drilling Services segment provides oilfield drilling services. The Well Services segment includes the logging and downhole services, such as drilling fluids, directional drilling, cementing and well completion, and the sale of well chemical materials and well workovers. The Marine Support Services segment is composed of the transportation of materials, supplies and personnel to offshore facilities, moving and positioning drilling structures, the transportation of crude oil and refined products. The Geophysical and Surveying Services segment deals with offshore seismic data collection, marine surveying, and data processing services. The company was founded on February 15, 1982 and is headquartered in Langfang, China.

Hunan Zhongnan Hydropower Engineering Construction Co., Ltd., established on 1995-02-10, Business scope includes civil engineering design,construction;Water Resources and Hydropower Engineering,Construction general contracting and post-decoration,Renovation and Cleanup;Building Waterproof,Anti-corrosion insulation,Special Engineering(Structural reinforcement),River and lake governance and flood control facilities,Professional contracting of foundation and foundation engineering;Geotechnical Engineering Investigation Services;Blasting operation(design and construction,assess safety,Safety Supervision,Engage in operations according to the period and scope approved by the blasting operation unit license);agriculture,Farmland infrastructure construction;Landscape and green space facilities,railway,the way,Tunnel and Bridge Engineering Architectural Design,construction;Environmental Engineering,Municipal engineering design,construction;building structure reinforcement,Waterproof leak trap;surveying and mapping,Landscaping project,Engineering Drilling Services,Mechanical and Electrical Equipment Installation Services;Production of environmental protection equipment,Sales;building materials,paint manufacturing,Sales;General Parts,Structural Metal Products,architecture,metal products for safety,Hardware Manufacturing,Sales;Operation and management of environmental protection facilities;Heat production and supply;project consultancy;water conservancy,firepower,Operation of new energy power stations;Production of new materials and related technologies,Sales,operate;HR Services;Power Project Consulting,Serve;Meeting,Exhibition and related services;Tourism planning and design;water pollution,solid waste pollution,Soil Pollution Control and Restoration Services;own legitimate funds(assets)carry out agricultural projects,transportation,energy,infrastructure,Hydroelectric power station,New energy power station,industry,Investment in cultural tourism industry.(Not to engage in deposit taking,Fundraising collection,entrusted loan,issue notes,Loans and other national financial supervision and fiscal credit business.)(Items subject to approval by law,Business activities can only be carried out after approval by relevant departments.)

Transocean Sedco Forex Ventures Ltd., part of Transocean Ltd., is a Caymanian company that provides offshore drilling services.

CNOOC Energy Technology & Services Ltd. engages in provision of energy technology services, floating production storage and offloading (FPSO) production technology services, energy logistics services, safety, environmental protection and energy saving products and services. It operates through the following segments: energy technology services, FPSO production technology services, energy logistics services, safety, environmental protection, and energy saving. The Energy Technology Services segment provides equipment operation and maintenance, pipeline technology, engineering technology, and data information technical services. The FPSO Production Technology Service segment offers light boat services; ships and support personnel boat services; and comprehensive services such as FPSO construction, commissioning, management, towing, installation, and unloading services. The Energy Logistics Services segment focuses on providing logistics support for offshore oil and gas field exploitation through marine supplies and catering services, and assistance for oil and gas products distribution. The Safety, Environmental Protection and Energy Saving Services segment covers marine oil spill response services; industrial water treatment; human resources and training services; utilization of coatings and marine industrial protection, catalyst, and liquefied natural gas cold energy; and energy saving and environmental testing services. The company was founded on February 22, 2005 and is headquartered in Beijing, China.

Drillmec SpA designs, manufactures, and distributes drilling and workover rigs. The firms services include customized rigs, drilling system upgrade, rig inspection and refurbishment, and global service facilities. It also offers oil and gas, water well drilling, geothermal solutions, and oil and gas equipment and water equipment. The company is headquartered in Gariga di Podenzano, Italy.

The origin and heritage of the Conoco brand can be traced back to 1875, when Isaac E. Blake founded the Continental Oil Company in Ogden, Utah to provide petroleum products for Western pioneers. Today, the Conoco brand is owned by Phillips 66 Company® and Conoco quality gasolines are sold at more than 2,400 retail fuel sites in the United States.

Beijing Gaotai Deep Sea Technology Co., Ltd., established on 2010-10-19, Business scope includes deep sea engineering technical services;Developing platforms for deepwater oil and gas fields,Deepwater platform equipment installation,Deep water platform transportation,Construction provides technical consulting services;Natural science research and experimental development;Sales instrumentation,computer,Software and Auxiliary Equipment,Equipment,electronic product;software development;Commissioned processing;Import and export,Technology Import and Export;HR Services.(Market entities independently choose business projects in accordance with the law,Carry out business activities;Human resources services and projects 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 industrial policies of the state and this city.)

Part of Exxon Mobil Corp., Exxonmobil Upstream Research Co. is a company headquartered in Houston, TX, that engages in exploration of oil and gas.

Offshore Oil Engineering Co., Ltd. engages in the provision of offshore engineering services. It offers services for oil and gas companies developing offshore oil and gas resources, including engineering design, supplies procurement, onshore manufacturing, marine transport and offshore installation, subsea pipeline laying, commissioning, delivery, and maintenance. The company was founded on April 20, 2000 and is headquartered in Tianjin, China.

Chevron USA, Inc. provides petroleum refining services and operates gasoline stations. It produces and transports crude oil and natural gas. The company was founded in 1984 and is headquartered in San Ramon, CA.