ABB Ltd. is a Swedish–Swiss multinational corporation headquartered in Västerås, Sweden, and Zürich, Switzerland. It is traded on the SIX Swiss Exchange in Zürich, the Nasdaq Nordic exchange in Sweden and the OTC Markets Group's pink sheets in the United States. It was ranked 340th in the Fortune Global 500 list of 2020 and has been a global Fortune 500 company for 24 years.
Halliburton Company is an American multinational corporation and the world's second largest oil service company which is responsible for most of the world's largest fracking operations. It employs approximately 55,000 people through its hundreds of subsidiaries, affiliates, branches, brands, and divisions in more than 70 countries. The company, though incorporated in the United States, has dual headquarters located in Houston and in Dubai.
The Archer-Daniels-Midland Company, commonly known as ADM, is an American multinational food processing and commodities trading corporation founded in 1902 and headquartered in Chicago, Illinois. The company operates more than 270 plants and 420 crop procurement facilities worldwide, where cereal grains and oilseeds are processed into products used in food, beverage, nutraceutical, industrial, and animal feed markets worldwide.
TotalEnergies SE is a French multinational integrated energy and petroleum company founded in 1924 and is one of the seven supermajor oil companies. Its businesses cover the entire oil and gas chain, from crude oil and natural gas exploration and production to power generation, transportation, refining, petroleum product marketing, and international crude oil and product trading. TotalEnergies is also a large-scale chemicals manufacturer.
Petróleos de Venezuela, S.A. is the Venezuelan state-owned oil and natural gas company. It has activities in exploration, production, refining and exporting oil as well as exploration and production of natural gas. Since its founding on 1 January 1976, with the nationalization of the Venezuelan oil industry, PDVSA has dominated the oil industry of Venezuela, the world's fifth largest oil exporter.
China Petroleum and Chemical Corporation, or Sinopec, is a Chinese oil and gas enterprise based in Beijing. It is listed in Hong Kong and also trades in Shanghai.
Sonatrach is the national state-owned oil company of Algeria. Founded in 1963, it is known today to be the largest company in Africa with 154 subsidiaries, and often referred as the first African oil "major". In 2021, Sonatrach was the seventh largest gas company in the world.
Hess Corporation is an American global independent energy company involved in the exploration and production of crude oil and natural gas. It was formed by the merger of Hess Oil and Chemical and Amerada Petroleum in 1968. Leon Hess was CEO from the early 1960s through 1995, after which his son John B Hess succeeded him as chairman and CEO. The company has agreed to be acquired by rival oil company Chevron.
Glencore plc is a Swiss multinational commodity trading and mining company with headquarters in Baar, Switzerland. Glencore's oil and gas head office is in London and its registered office is in Saint Helier, Jersey. The current company was created through a merger of Glencore with Xstrata on 2 May 2013. As of 2015, it ranked tenth in the Fortune Global 500 list of the world's largest companies. In the 2020 Forbes Global 2000, Glencore International was ranked as the 484th-largest public company in the world. As of July 2022, it was the world's largest commodity trader. In 2023, the company was ranked 59th in the Forbes Global 2000.
Societatea Națională de Gaze Naturale Romgaz SA Mediaș or simply Romgaz is the largest natural gas producer in Romania and one of the largest producers in Eastern Europe. The company is the country's main supplier and responsible for producing around 40% of the total natural gas consumption in Romania.
Gunvor Group Ltd is a multinational energy commodities trading company registered in Cyprus, with its main trading office in Geneva, Switzerland. Gunvor also has trading offices in Singapore, Houston, Stamford, London and Dubai, with a network of representative offices around the globe. The company operates in the trade, transport, storage and optimization of petroleum and other energy products, as well as having investments in oil terminal and port facilities. Its operations consist of securing crude oil and petroleum products upstream and delivering it to market via pipelines and tankers. Gunvor has a separate company, Nyera, set up in 2021 to invest in renewable energy sources. It is run by energy transition director Fredrik Tornqvist.
Vitol is a Swiss-based Dutch multinational energy and commodity trading company that was founded in Rotterdam in 1966 by Henk Viëtor and Jacques Detiger. Though trading, logistics and distribution are at the core of its business, these are notably complemented by refining, shipping, terminals, exploration and production, power generation, and retail businesses. Vitol has over 40 offices worldwide, with its largest operations in Geneva, Houston, London, and Singapore.
BP p.l.c. is a British multinational oil and gas company headquartered in London, England. It is one of the oil and gas "supermajors" and one of the world's largest companies measured by revenues and profits. It is a vertically integrated company operating in all areas of the oil and gas industry, including exploration and extraction, refining, distribution and marketing, power generation, and trading.
Although there are numerous oil companies operating in Canada, as of 2009, the majority of production, refining and marketing was done by fewer than 20 of them. According to the 2013 edition of Forbes Global 2000, canoils.com and any other list that emphasizes market capitalization and revenue when sizing up companies, as of March 31, 2014 these are the largest Canada-based oil and gas companies.
Addax Petroleum was established in 1994 and since August 2009 has been a subsidiary of the Sinopec Group, one of the largest oil and gas producers in China, the biggest oil refiner in Asia, and the third largest worldwide. Addax Petroleum was an international gas and oil production and exploration company mainly focused on the Middle East, the North Sea, and Africa. Since its founding, the company has become one of the largest oil producers in West Africa.
Ayman Asfari is a Syrian-British billionaire businessman. He was the chief executive (CEO) of Petrofac, a Jersey-registered multinational oilfield services company serving the oil, gas and energy production and processing industries, from 2002 to 2020, and became a non-executive director.
Berry Corporation is a company primarily engaged in hydrocarbon exploration in California, the Uintah Basin, and the Piceance Basin. As of December 31, 2021, the company had 97 million barrels of oil equivalent (590,000,000 GJ) of estimated proved reserves, of which 87% was petroleum and 13% was natural gas. The company also offers oil well services and electricity sales.
Taleveras is an African business conglomerate, privately owned with business interests in energy and infrastructure, oil and gas exploration, production, trading and supply, power and construction. Taleveras’ offices are located in London, Geneva, Abuja, Lagos, Abidjan, Cape Town and Dubai.
AtkinsRéalis is the trading name of SNC-Lavalin Group Inc., a Canadian company based in Montreal that provides engineering, procurement, and construction (EPC) services to various industries, including mining and metallurgy, environment and water, infrastructure, and clean energy. AtkinsRéalis was the largest construction company, by revenue, in Canada, as of 2021.
The Ahsani family are a prominent Monaco-based business family of Iranian origin. The family is headed by Ata Ahsani. Ata and his two sons Cyrus and Saman run the energy industry consultancy Unaoil; his third son, Sassan, heads the British property company Lumina Real Estate Capital.
US$2,591 million (2022) [1] 
