Leading 10 Oil and Gas Companies by Market Cap in 2025

As of March 2025, Saudi Aramco stands as the world's largest oil and gas company, with a market capitalization of $1.648 trillion. Aramco is the biggest oil and gas corporation in the world. Aramco, which now produces about 9.2 million barrels per day (bpd), plans to adhere to voluntary OPEC+ production cutbacks through December 2025 to reach a maximum sustainable capacity of 12 million bpd. To achieve a sustainable sales gas rate of 2 billion standard cubic feet per day (Bcf/d) by 2025, the company is also increasing its gas output.

Saudi Arabia's Jafurah project, operated by Saudi Aramco, the country's largest unconventional gas site, is set to begin production in Q3 2025, with an eventual capacity of 3.15 Bcf/d by 2028. In 2024, the country's natural gas output was 123 billion cubic meters; in 2025, it is expected to drop to 121 billion cubic meters. The projected 229 trillion standard cubic feet of raw gas and 75 billion stock tank barrels of condensate from the Jafurah field are part of the enormous hydrocarbon reserve base that Aramco still manages, which amounts to 250 billion barrels of oil equivalent.