Investor Presentaiton

Building a global, diversified oil and gas company via disciplined M&A Well-positioned for value creation, growth and shareholder returns 2024 priorities Maximize the value of our production base responsibly Progress international growth and diversification opportunities Maintain strong financial position and capital discipline Complete transformational acquisition of Wintershall Dea asset portfolio Harbour founded by private equity 2014 Harbour Energy | Investor Presentation Shell UK transaction 2017 186 kboepd 175 kboepd 137 kboepd Conoco UK transaction 2019 Premier merger Largest UK O&G producer 2021 2023 c.500 kboepd Harbour Energy Pro forma Harbour (Wintershall Dea Acq.) 2023 27

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