Ten largest American oil and gas companies based on market value in 2018 (in billion U.S. dollars)

Largest American oil and gas companies based on market value 2018 This statistic shows the United States' ten largest oil and gas companies based on market value in 2018. The values are based on the 2018 Financial Times Equity list of the leading global companies. As of June 2018, American oil and gas company Chevron reached a market value of some 239 billion U.S. dollars.
Largest American oil and gas companies

The oil and gas industry is one of the largest industries worldwide. This sector is involved in exploration, extraction, refining, transport, and marketing of these commodities. Many industries are extremely dependent on oil and gas products, mostly in the form of energy fuels or raw materials for chemical products.

Oil and gas companies from the United States are among the world’s largest corporations. For example, ExxonMobil, Conoco Phillips, and Chevron have all long been global leaders based on revenue. Periodically, ExxonMobil has been the world’s largest company in general, with revenues exceeding the mark of 400 billion U.S. dollars in several recent years. As of June 2018, it was also the company with the tenth highest market capitalization. Most of the top U.S. oil and gas companies have operations all over the world, generating large portions of their incomes outside of the United States.

The United States has a long tradition of oil and gas companies. ExxonMobil, for example, is a direct descendent of Rockefeller’s Standard Oil Company, which was founded in 1870. Chevron has its roots in the Pacific Coast Oil Company, which was founded in 1879.
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Market capitalization in billion U.S. dollars
Exxon Mobil344.55
Chevron239.06
ConocoPhillips79.31
EOG Resources68.6
Occidental Petroleum63.81
Phillips 6652.24
Valero Energy48.38
Halliburton40.49
Anadarko Petroleum38.17
Marathon Petroleum33.54
Market capitalization in billion U.S. dollars
Exxon Mobil344.55
Chevron239.06
ConocoPhillips79.31
EOG Resources68.6
Occidental Petroleum63.81
Phillips 6652.24
Valero Energy48.38
Halliburton40.49
Anadarko Petroleum38.17
Marathon Petroleum33.54
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This statistic shows the United States' ten largest oil and gas companies based on market value in 2018. The values are based on the 2018 Financial Times Equity list of the leading global companies. As of June 2018, American oil and gas company Chevron reached a market value of some 239 billion U.S. dollars.
Largest American oil and gas companies

The oil and gas industry is one of the largest industries worldwide. This sector is involved in exploration, extraction, refining, transport, and marketing of these commodities. Many industries are extremely dependent on oil and gas products, mostly in the form of energy fuels or raw materials for chemical products.

Oil and gas companies from the United States are among the world’s largest corporations. For example, ExxonMobil, Conoco Phillips, and Chevron have all long been global leaders based on revenue. Periodically, ExxonMobil has been the world’s largest company in general, with revenues exceeding the mark of 400 billion U.S. dollars in several recent years. As of June 2018, it was also the company with the tenth highest market capitalization. Most of the top U.S. oil and gas companies have operations all over the world, generating large portions of their incomes outside of the United States.

The United States has a long tradition of oil and gas companies. ExxonMobil, for example, is a direct descendent of Rockefeller’s Standard Oil Company, which was founded in 1870. Chevron has its roots in the Pacific Coast Oil Company, which was founded in 1879.
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Release date
June 2018
Region
United States
Survey time period
2017 and 2018
Supplementary notes
Ranking compiled in 2018 based on latest available data.
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