Southwestern Energy Investor Presentation

Portfolio Optionality Across Deep High Return Inventory Swn Basin Haynesville Liquids 14% Southwestern Energy® Commodity Haynesville 40% 4.6 Bcfe/d net production (1) Appalachia 60% Basin, commodity and end market diversification reduce risk and strengthen the sustainability of free cash flow generation 44% 15 Years core inventory 1) Based on midpoint of guidance. 2) Estimated based on 2023 guidance, contracted firm transportation and firm sales agreements. Appalachia 56% 4.6 Bcfe/d net production (1) Gas 86% Premium Sales Locations Other 3% CityGate 6% Appalachia 26% ~1/3 gas sold to LNG markets Sales Locations marketed gross production (2) LNG Corridor/ Gulf Coast 65% 10

View entire presentation