The global energy industry is made up companies operating in all areas of the production, distribution and sale of energy.
Companies in the energy sector include those working in natural gas and oil production; electric power generation; coal; renewable energy; distribution, sales and retail; utilities; infrastructure; and related products, services and technologies.
The following list of energy companies covers the top 100 global players based on market capitalisation.
While many of them have interests in multiple areas, the companies are listed alphabetically, categorised by their primary business focus.
1. China Shenhua
State-owned coal mining enterprise working in the production, sale and transportation of coal and coal-based power.
2. AES Corporation
Operating in the generation and distribution of electric power and serving customers worldwide in 15 countries across Europe, Asia, North America and South America.
3. CEZ Group
A conglomerate of 96 companies operating across Eastern Europe, with a primary focus on the generation and distribution of electricity.
Specialist in energy generation, distribution and transportation, operating the longest transportation system of hydrocarbons and crude oil in North America.
A multinational company specialising in the generation and distribution of electricity from a number of sources including wind power, solar power, geothermal and hydroelectric power.
6. Entergy Corporation
A specialist in electric power production and distribution to the retail sector, serving around 2.9 million customers in the Deep South states of America.
7. Magellan Midstream Partners
Working in transportation, storage and distribution, and operating refined products and crude oil pipelines across the US.
8. Pembina Pipeline Corporation
A specialist in the storage, transportation and distribution of natural gas and oil across Western Canada.
9. Plains All American Pipeline
Operating in the storage, transportation and marketing of liquified petroleum gas, and the storage of natural gas.
10. CK Hutchison Holdings
A multinational conglomerate operating a number of infrastructure companies including UK Power Networks, Australian Gas Networks, and Wales and West Utilities.
11. ENN Energy
A holding company operating as one of China’s largest distributors of clean energy, principally focused on the construction, management and operation of gas-pipeline infrastructure.
A UK-based company providing end-to-end services and technologies for oil and gas projects.
13. General Electric Company
A multinational conglomerate with various assets in renewable energy, power, lighting, and oil and gas.
14. Mitsubishi Corporation
A multinational trading company with interests in power and electric infrastructure, investment and trading of crude oil, natural gas and biofuel, and the production of petrochemicals.
15. Reliance Industries
A conglomerate holding company operating multiple businesses across India, with an interest in petrochemicals, energy and natural resources.
16. Anadarko Petroleum Corporation
The largest independent company in oil and natural gas exploration in the US, with operations across the US, Algeria, Peru and the Red Sea.
17. Apache Corporation
Operating in oil and gas exploration and production, with activities across the US, the North Sea and Egypt.
A ‘supermajor’ among the top energy companies in the world, operating vertically across exploration, production, distribution, power generation, refining and trading.
19. Cabot Oil and Gas Corporation
An independent company focused on the exploitation of oil reserves found solely in Texas, and the exploration and development of natural gas resources in Pennsylvania.
20. Canadian Natural Resources
An independent producer of natural gas and crude oil specialising in exploration, production and development, with operations in North America, the North Sea and offshore Africa.
21. Cenovus Energy
An integrated company operating across oil exploration, natural gas processing, refining and transportation.
22. Chevron Corporation
Operates within all areas of oil, natural gas and geothermal energy on a global scale, including exploration, production, power generation, refining and transport.
23. China Petroleum and Chemical Corporation
Commonly known as Sinopec, this is a fully integrated company operating in hydrocarbon exploration, petrochemical production, transportation, and import and export.
24. CNOOC Limited
A subsidiary of China National Offshore Oil Corporation – and the country’s top producer of natural gas and crude oil.
25. Concho Resource
Specialists in hydrocarbon exploration, operating solely in the southwestern area of the US. Its exploration is focused in the Permian Basin.
Solely focused on the exploration, production and development of oil and natural gas, with operations in Alaska, Canada, Latin America, Asia Pacific, Europe and the Middle East.
27. Continental Resources
An independent company focused on natural gas and petroleum exploration and production, via horizontal drilling and hydraulic fracturing.
28. Devon Energy Corporation
Established in 1971, Devon Energy Corporation specialises in onshore hydrocarbon exploration in the US and Canada.
29. Diamondback Energy
An independent Texas-based company focused primarily on the exploration and development of onshore natural gas and oil reserves.
Colombia’s largest petroleum company, specialising in exploration, production, transportation, petrochemicals and biofuels.
31. Encana Corporation
Founded in 2002, Encana is focused on hydrocarbon exploration across Canada and the US.
An integrated oil and gas company with activities in exploration and production, power generation and refining, and the marketing of petroleum products.
33. EOG Resources
Focused on hydrocarbon exploration with sites across the US, Canada and China.
A Norwegian company focused primarily on oil and gas exploration and production, pipeline operations, wind energy, and biofuels.
One of the largest energy companies in the world, operating vertically across oil exploration, wholesale, refining and retail.
36. Formosa Petrochemical Corporation
Principally focused on the production and sale of petroleum and petrochemical products across China, the Philippines, Malaysia and Singapore.
37. Gail (India)
India’s largest state-owned gas processing and distribution company. It is a specialist in the exploration, production and distribution of natural gas.
38. Galp Energia
A Portugal-based corporation overseeing over 100 companies working in natural gas supply and distribution, plus petroleum exploration and production.
A Russian company operating predominantly in the extraction, production and sale of natural gas, as well as the production of crude oil.
40. Hess Corporation
An independent New York-based organisation focused on the exploration and production of natural gas and crude oil.
41. Husky Energy
An integrated company working across oil and gas exploration and production, refining and retail.
42. Imperial Oil
An integrated oil and gas company working in the production of natural gas, crude oil, petroleum products and diluted bitumen.
43. Indian Oil Corporation
India’s largest commercial oil company, with integrated assets in gas, oil and petrochemicals, as well as a focus on alternative energy sources.
44. Inpex Corporation
A Japanese holding company focused primarily on the exploration, production and sale of petroleum and natural gas.
A Russian corporation operating in the production, transportation and sale of natural gas, petroleum and petroleum products.
46. Lundin Petroleum
An independent oil and gas company working in exploration and production. It is based in Sweden, with its main operations in Norway.
47. Marathon Oil Corporation
Formally known as The Ohio Oil Company, Marathon Oil operates in the exploration and production of natural gas and petroleum.
48. Marathon Petroleum Corporation
The company separated from Marathon Oil through a corporate spin-off in 2011 and is focused on the refining, transportation and marketing of petroleum.
49. Neste Oyj
Specialists in the production, refining and marketing of oil products. The company is based in Finland, with operations in 14 countries.
50. Noble Energy
An independent hydrocarbon exploration and production company. It operates in the US with assets in offshore oil fields in Cameroon, Equatorial Guinea and Gabon.
Founded in 1994, Novatek operates primarily in the production of natural gas from reserves in West Siberia.
52. Occidental Petroleum
An integrated oil and gas company focused on the exploration of gas and oil, and the production of petrochemicals.
53. Oil and Natural Gas Corporation
One of the main oil and gas companies in India, producing approximately 62% of the country’s natural gas and 70% of its crude oil.
An integrated company operating across exploration and production, refining and transportation, distribution, gas and power, and biofuels.
55. PetroChina Company
The second-biggest oil producer in China, focused on the exploration, production and sale of natural gas and crude oil.
56. Phillips 66
Primarily focused on the manufacturing, refining and marketing of crude oil, the company separated from ConocoPhillips through a corporate spin-off in 2012.
57. Pioneer Natural Resources Company
Founded in 1997 and operating in hydrocarbon exploration in the Permian Basin in the US.
58. PTT Public Company
An integrated company with interests in hydrocarbon exploration, electricity generation and petroleum products.
An integrated company focused on the exploration, production and sale of natural gas and oil, and the manufacturing and sale of petrochemical products.
60. Royal Dutch Shell
One of the world’s top energy companies, operating vertically across the whole oil and gas chain, with additional interests in renewable energy production. Read about the application process to Shell here.
Operating two principal business units in coal mining and oil and gas exploration and production across 36 countries.
62. SK Innovation
Originally the Korea Oil Corporation, SK Innovation is focused on the production of petroleum, refining and future energy technologies.
A South Korean company specialising in the production of petroleum and petrochemical products.
64. Suncor Energy
Operating in the exploration, production, refining, supply and trading of crude oil, natural gas and petroleum, with footprints in Canada, the UK, Norway, Libya and Syria.
A Russian hydrocarbon and petroleum production company engaged across all areas of oil and gas field operation and exploration, gas processing, manufacturing, refining, and wholesale.
Focused on the exploration, production, refining and marketing of gas and oil, and the production and sale of petrochemicals.
67. Total S.A
Another ‘supermajor’ among the top energy companies in the world, operating an integrated business model across all areas of the oil and gas market.
68. Valero Energy Corporation
Producer of power, petrochemical products and fuel, and operating several refineries in the US, Canada and the UK.
69. Woodside Petroleum
The largest company in Australia solely focused on oil and gas exploration and production, with headquarters in Perth.
70. Baker Hughes, a GE Company
An industrial service company providing products and services to the oil and gas industry in over 120 countries, partially owned by the General Electric Company.
Designers, manufacturers and distributors of power generation products, trading in around 190 countries.
72. Emerson Electric Company
A multinational corporation based in the US, it manufactures and supplies energy-related products and services across commercial, industrial and consumer markets.
73. Halliburton Company
Suppliers of products and services to the oil and gas industry, with business operations in over 70 countries.
74. National Oilwell Varco
Worldwide suppliers of products and services to the oil and gas production industries, and providers of supply chain integration services.
A global supplier of products and services to the oil and gas industry with principal executive offices in London, Paris and the Hague.
A Chinese renewable energy company operating in wind, solar and hydropower generation.
77. Ørsted A/S
A Danish company primarily focused on power generation through offshore wind farming worldwide.
78. Ameren Corporation
A holding company working with multiple subsidiaries to provide electricity to 2.4 million customers and natural gas to 900,000 customers across the US.
79. CLD Holdings
An investor-owned holding company focused on the generation, transmission and sale of electricity, serving customers in Hong Kong, mainland China, Australia, India and Southeast Asia.
80. CMS Energy
Founded in 1886, CMS Energy specialises in consumer energy. It currently provides electricity and natural gas to over 6 million customers.
81. Comp En De Mn Cemig ADS (CEMIG)
Specialists in the generation and supply of electricity via thermoelectric plants, hydroelectric plants and wind power.
82. Consolidated Edison
Principally involved in the provision of consumer electricity and gas across the state of New York and surrounding areas.
83. Dominion Energy
Suppliers of natural gas and electricity to both residential and business customers across the midwestern and eastern states of America.
French energy company focused on the engineering and distribution of electricity, with activities in wind power, solar energy and hydropower technologies. One of the ‘Big Six’ energy companies.
A Portuguese energy group producing, distributing and supplying energy through coal, hydropower and wind power technologies.
Operating across electricity production and distribution, natural gas, renewable energy, energy transition and petroleum.
A German-based energy service provider, serving 33 million customers in over 30 countries. One of the main public utility companies operating in Europe and part of the ‘Big Six’.
A producer and distributor of electricity, providing power to over 690,000 industrial, commercial and residential customers across the state of Missouri.
89. Exelon Corporation
A specialist in the generation and provision of electric power, with eight primary subsidiaries operating in 48 US states.
90. FirstEnergy Corporation
A fully regulated energy company serving around 6 million customers in the US. It is focused on the generation, transmission and distribution of electricity.
91. Fortum Oyj
A state-owned company based in Finland, with operations in power plants and the generation and sale of electricity and heat.
92. NextEra Energy
A supplier of consumer energy across North America, with a focus on renewable energy sources.
Based in Indiana, NiSource is a fully regulated utility company providing natural gas and electricity across seven states.
Primarily focused on the generation and sale of electricity to distribution companies and electricity boards across India.
95. Pacific Gas and Electric Company
Founded in 1905, Pacific Gas and Electric supplies consumer gas and electricity to approximately 5.2 million homes in the US.
96. PPL Corporation
Serving customers in the UK and US, PPL is primarily focused on the generation and supply of power through natural gas, coal and oil.
97. Public Service Enterprise Group
Established in 1985, Public Service Enterprise Group deals in the generation and supply of consumer gas and electricity.
One of the ‘Big Six’ UK energy companies, focused on the generation and supply of consumer gas and electricity across the UK and the Republic of Ireland.
99. WEC Energy Group
Provides around 4.4 million customers with natural gas and electricity through a number of brands serving the states of Michigan, Wisconsin, Minnesota and Illinois.
100. Xcel Energy
A holding company providing electricity to 3.3 million customers and natural gas to 1.8 million customers across the US through four subsidiaries.
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