Investor Presentaiton

PremierOil Highlights Compelling strategic logic Creates the UK's largest-listed independent E&P company - Combined production of 254 kboepd (>90% UK) in 2020 1H - Significant international, growth opportunities Upper tier of FTSE250 Creates a diversified UK business of scale with significant operated position. - High quality operated hubs: Britannia, J-Area, AELE, Catcher and Tolmount - Interests in other UK producing hubs: Clair, Buzzard, Beryl, Elgin-Franklin and Schiehallion Combines two highly complementary, cash generative businesses - - · Substantial cost and tax synergies; accelerates use of Premier's $4.1bn tax losses Portfolio diversification, increased gas exposure - Sector leading strategies to reduce carbon footprint Creates a business with a stable platform for future growth - Ability to pursue a fully funded growth strategy - Unlocks Premier's international development and exploration portfolio Creates a Combined Group with a strong financial position. - Strong balance sheet and sustainable financing structure - Positions the business to target an investment grade credit rating – Potential to offer a meaningful dividend for shareholders over time November 2020 55 P5

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