Which company is the world’s largest publicly traded oil producer by market capitalization?

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Saudi Aramco is the world’s largest publicly traded oil producer by market capitalization.

Saudi Aramco is the national oil company of Saudi Arabia and is majority owned by the Saudi government. It operates major upstream oil fields, processing facilities, pipelines, and export infrastructure, giving it an unusually large role in global petroleum markets.

The company’s public shares began trading in Riyadh in 2019, although the business has roots in the former Arabian American Oil Company. Its enormous reserves, production capacity, and profitability have made it one of the most valuable listed companies in the world.

“Largest oil company” can mean several different things, including production, reserves, revenue, or market value. This question uses market capitalization and refers to a publicly traded producer. Rankings can shift with oil prices and share prices, but Aramco is the clear reference for this market-cap category.

Source: Wikipedia · fact-checked Sept. 2026

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