The global energy sector, as of August 6, 2025, is overwhelmingly led by the Saudi Arabian state-owned giant, Saudi Aramco, which boasts a market capitalisation of a staggering $1,565 billion.
This figure is more than three times the value of the second-largest company, the American multinational ExxonMobil, which holds a market capitalisation of $457 billion.
The rest of the top ten is a mix of US, European, and Chinese entities. Chevron ($311 billion) completes the top three, solidifying the presence of major American oil companies.
China’s PetroChina ($218 billion) and CNOOC ($117 billion), as well as Sinopec ($90 billion), represent the significant market strength of Asian national oil companies.
European majors include Shell ($211 billion), TotalEnergies ($132 billion), and BP ($87 billion).
The vast disparity in market capitalisation demonstrates the unparalleled financial scale of Saudi Aramco within the global oil and gas industry.
