The oil and natural gas companies included are all headquartered in the U.S. and are ranked according to their market capitalization as of February 2025.
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Leading U.S. oil and gas companies based on market capitalization 2025
With a market capitalization of over *** billion U.S. dollars as of February 2025, Exxon Mobil was the top U.S.-based oil and gas company based on market capitalization. Chevron came in second place at that time, with a market cap of over *** billion U.S. dollars.
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Flow Partners. (February 27, 2025). Market capitalization of the leading oil and gas producers in the United States as of February 2025 (in billion U.S. dollars) [Graph]. In ÌÇÐÄÆƽâ°æ. Retrieved August 05, 2026, from /statistics/646956/market-capitalization-of-the-leading-united-states-based-oil-and-gas-companies/
Flow Partners. "Market capitalization of the leading oil and gas producers in the United States as of February 2025 (in billion U.S. dollars)." Chart. February 27, 2025. ÌÇÐÄÆƽâ°æ. Accessed August 05, 2026. /statistics/646956/market-capitalization-of-the-leading-united-states-based-oil-and-gas-companies/
Flow Partners. (2025). Market capitalization of the leading oil and gas producers in the United States as of February 2025 (in billion U.S. dollars). ÌÇÐÄÆƽâ°æ. ÌÇÐÄÆƽâ°æ Inc.. Accessed: August 05, 2026. /statistics/646956/market-capitalization-of-the-leading-united-states-based-oil-and-gas-companies/
Flow Partners. "Market Capitalization of The Leading Oil and Gas Producers in The United States as of February 2025 (in Billion U.S. Dollars)." ÌÇÐÄÆƽâ°æ, ÌÇÐÄÆƽâ°æ Inc., 27 Feb 2025, /statistics/646956/market-capitalization-of-the-leading-united-states-based-oil-and-gas-companies/
Flow Partners, Market capitalization of the leading oil and gas producers in the United States as of February 2025 (in billion U.S. dollars) ÌÇÐÄÆƽâ°æ, /statistics/646956/market-capitalization-of-the-leading-united-states-based-oil-and-gas-companies/ (last visited August 05, 2026)
Market capitalization of the leading oil and gas producers in the United States as of February 2025 (in billion U.S. dollars) [Graph], Flow Partners, February 27, 2025. [Online]. Available: /statistics/646956/market-capitalization-of-the-leading-united-states-based-oil-and-gas-companies/
