Saudi oil & gas reserves operated by Aramco
Observed scale
At 31 Dec 2025, Kingdom reserves in fields operated by Aramco were 342.0bn boe; Aramco reserves were 247.2bn boe under the concession-term calculation.
How control works
The Kingdom's resource ownership is distinct from Aramco's concession-based exploration, development and production rights in the covered areas; the Saudi Government also held 81.48% directly at 31 Dec 2025.
Interpretive limits
Kingdom reserves and Aramco reserves are different measures. The record maps legal and operating control, not a claim that listed equity ownership equals ownership of the subsoil resource.