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Investor Presentaiton

Bayu Undan and Darwin LNG production hubs Santos Reliable LNG production performance from Darwin LNG and liquids production from Bayu Undan + Reliable performance and safety record with high availability - no scheduled cargo missed since start up in 2006 + Over 700 LNG cargoes delivered to date + Liquids production in 2019 is dominated by highly successful 2018 infill drilling program which targeted remaining liquids rich gas + Active program of well interventions in 2019 has maximised offshore well deliverability, maximised liquids production and minimised water production Western Australia & Northern Territory Site Visit 2019 22

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