ExxonMobil Worldwide Upstream

Worldwide proved-reserves and production rollup for Exxon Mobil Corporation (consolidated subsidiaries plus equity companies). Total proved reserves of 19.3 GOEB at YE2025 (vs 19.6 GOEB YE2024); 7.0 GOEB (36%) proved undeveloped. In 2025, ~1.4 GOEB transferred from proved undeveloped to developed; extensions/discoveries added ~2.1 GOEB (primarily US and Guyana); ~1.0 GOEB reclassified out of proved (primarily US); asset sales 0.1 GOEB; production 1.8 GOEB. $19.0B invested in 2025 to progress proved undeveloped development ($18.8B oil & gas producing activities). 2025 upstream production 4.7 Moebd — highest in over 40 years; ~2/3 of global production from Permian, Guyana and LNG. 12% of YE2025 proved reserves under PSC arrangements. PUDs held >5 years concentrated in Australia (Gorgon-Jansz compression) and UAE (Upper Zakum).