Investor Presentaiton

Santos Offshore Division - WA and NT Santos Production profile and growth opportunities supported by strong offshore operating expertise and capabilities 2018 2P reserves mmboe 2019 Q3 YTD Production mmboe + Offshore 340 The acquisitions of Quadrant Energy and ConocoPhillips' northern Australia interests¹ are fully aligned to Santos' vision and strategy to: + be the leading national supplier of domestic gas in Australia, be a leading regional LNG supplier, and grow production by building on existing infrastructure positions around our 5 core long-life natural gas assets + + 1,022 Rest of Santos 682 Offshore 25.9 56.8 Rest of Santos 30.9 mmboe mmboe 1 The acquisition of ConocoPhillips' northern Australia interests is subject to third-party consents and regulatory approvals Western Australia & Northern Territory Site Visit 2019 6

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