Investor Presentaiton

Appendix Andaman, Indonesia: LNG scale gas resource Andaman II (Premier 40%, op) ■ Partners: Mubadala 30%, BP 30% ◉ Prospective resource: >6 TCF + 200 mmbbls condensate ■ Two main prospective areas: Timpan and Sangar clusters First exploration well planned for 2022 South Andaman (Premier 20%) ■ Partner: Mubadala 80% (op) Prospective resource: c.6 TCF + 200 mmbbls condensate ■ First exploration well planned for 2022 Andaman I (Premier 20%) ■ Partner Mubadala 80% (op) ■ Additional prospectivity identified Premier interests 3D seismic survey Gas pipeline South Andaman 100km Banda Aceh THAILAND Andaman I Songkhla Andaman II Arun Terminal Timpan North DC 7 wells Timpan DC 7 wells 30km Shuttle Tanker NORTH SUMATRA FPSO NSO PSC Medan Malacca Strait MALAYSIA PremierOil 2014 Acquired operatorship of Andaman II JSA 2018 Awarded Andaman II (2017 Licence Round) 2019 9,276 km 3D seismic survey across acreage Commercialise via re-generation of Arun LNG terminal and facilities Sangar Utara DC 8 wells 2020 Farm in for 20% in S. Andaman, Andaman I BP acquires 30% interest in Andaman II ne Sangar DC 8 wells November 2020 -120km 2 New LNG Trains New Onshore Reception & Gas Compression >12 TCF of amplitude supported gas resource (gross) 16" Production Flowline 28" Gas export Pipeline Control Umbilical 6 No. Treating & Liquefaction Units Existing Tank Farm- Arun LNG Terminal 24" Belwan Gas Export P25

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