1, Saudi National Oil Company
Saudi Arabian National Oil Company was established in 1988, and its headquarters is in Dalam, Saudi Arabia. It is the only company in Saudi Arabia engaged in oil exploration and development.
2. Iranian National Oil Company
The Iranian National Oil Company was established in 195 1 and headquartered in Tehran, representing the Iranian government in charge of all aspects of the oil industry. The company has six subsidiaries.
3. ExxonMobil Corporation
ExxonMobil Company, formerly known as Exxon and Mobil respectively, merged and reorganized on1October 30th, 1999, 165438. The company is also the parent company of Exxon, Mobil and Esso's global branches.
4. Venezuelan oil company
Venezuelan oil company is a multinational energy company, engaged in business and commercial operations at home and abroad, including: oil and gas exploration, development, refining, transportation and distribution, as well as Orimulsion, chemical, petrochemical and coal industries.
5. China Oil and Gas Group Company
China petroleum and natural gas group company was established on the basis of the former China petroleum and natural gas group company, 1998. China Petroleum and Natural Gas Group Company is a comprehensive energy company integrating oil and gas exploration and development, refining and chemical industry, oil product sales, oil and gas storage and transportation, oil trade, engineering and technical services and petroleum equipment manufacturing. Headquartered in Beijing, it belongs to the national oil company.
6. BP
At present, BP is the fourth largest multinational oil company with integrated downstream operation in the world, covering more than 0/00 countries and regions in the world, including oil and gas exploration and exploitation, oil refining and marketing, petroleum Buddhist products and so on.
7. Royal Dutch Shell Group
Royal Dutch Shell Group is one of the so-called "Seven Sisters", and it is still an important competitor in the fields of petroleum, energy, chemical industry and solar energy, with five core businesses.
8. Chevron Corporation of America
Chevron is the second largest oil company in the United States. The company's business covers 180 countries and regions around the world, and it is one of the most competitive energy companies in the world today, involving all fields of the oil and gas industry.
9. ConocoPhillips, USA
ConocoPhillips was founded on August 30, 2002, and was formed by the merger of ConocoPhillips and ConocoPhillips, with its headquarters in Houston, Texas, USA.
10, Total Oil Company
Total Oil Company was established in 1924. The company is mainly engaged in oil and gas exploration, production, refining, sales and trade of refined oil, pigments and special chemicals, transportation and sales of crude oil and its derivatives and natural gas.
petroleum
Petroleum is a mixture of gaseous, liquid and solid hydrocarbons, and it is a naturally occurring viscous dark brown liquid called "industrial blood". Petroleum is divided into crude oil, natural gas, natural gas liquid and natural tar, but it is customary to use "oil" as the definition of "crude oil".