• Enhanced 3D seismic interpretation confirms extensive sand development and improved structural definition across primary Tweedel targets
• Zydeco-1 targets up to 8 Bcf of gas and 0.5 MMbbl of condensate
• Located within a proven gas-condensate fairway with nearby production

Galilee Energy Limited (ASX: GLL) has completed a comprehensive technical review of 3D seismic data for its 100%-owned Zydeco Gas Project in Acadia Parish, Louisiana, USA. The updated seismic interpretation has materially strengthened the subsurface model, confirming extensive sand development across the Upper and Lower Tweedel formations and improved structural definition and reservoir continuity. This has allowed the company to select the optimal bottom-hole location for the Zydeco-1 appraisal/production well, which is designed to test and, if successful, complete both Tweedel intervals in a single borehole. Zydeco-1 is targeting up to 8 Bcf of gas and 0.5 MMbbl of condensate, with the project located within a proven gas-condensate fairway and benefiting from nearby production at the Indigo (2km) and Frey (8km) fields. The well is planned to be spud during 2Q 2026, with first production targeted within approximately 6 months of a successful flow test. Galilee has also strengthened its execution capability through partnerships with local drilling, subsurface and operational experts, positioning the company to deliver its first US drilling program.

Zydeco-1 is targeting up to 8 Bcf of gas and 0.5 MMbbl of condensate. The well is planned to be spud during 2Q 2026.

Success at Zydeco-1 would not only establish first production for Galilee, but also de-risk additional drilling locations and provide a growth platform in Louisiana to deliver the company's strategy of becoming a mid-tier US producer.