TULLOW OIL PLC

Directorate Change

Appointment of Richard Miller as Chief Financial Officer

8 December 2022 - Tullow Oil plc (Tullow) is pleased to announce the appointment of Richard Miller as Chief Financial Officer (CFO) and as an Executive Director of Tullow. Richard is currently Interim CFO and Group Financial Controller. The effective date of the appointment will be 1 January 2023.

Richard brings extensive oil & gas and financial experience to the role. He has been acting as Interim CFO since April 2022 and has been with Tullow for over 11 years. During that time Richard led the Tullow Finance team, supporting a number of acquisitions, disposals and capital markets transactions. Richard played a significant role in the continued turnaround of Tullow with the successful rebasing of Tullow's cost structure, the resetting of the balance sheet and the change to a more focussed capital allocation. Richard is a Chartered Accountant and he joined Tullow from Ernst and Young LLP where he worked in the audit and assurance practice.

Rahul Dhir, Chief Executive Officer, Tullow Oil plc said: "Richard has made a significant contribution to Tullow in his tenure and particularly during the last year as Interim CFO. He has helped drive cost discipline and capital efficiency alongside improvements in our broader finance function. He has the right mix of sector and finance experience and I am looking forward to working with Richard as we build a leading African oil & gas company."

Phuthuma Nhleko, Chairman of Tullow Oil plc, commented today: "I would like to warmly welcome Richard to the Board and look forward to working with him and Rahul in the years ahead."

CONTACTS

This announcement contains inside information for the purposes of Article 7 of Regulation 2014/596/EU which is part of domestic UK law pursuant to the Market Abuse (Amendment) (EU Exit) Regulations (SI 2019/310) ("UK MAR"). Upon the publication of this announcement, this inside information (as defined in UK MAR) is now considered to be in the public domain. This announcement is being made on behalf of Tullow by Adam Holland, Company Secretary.

Notes to editors

Tullow is an independent oil & gas, exploration and production group which is quoted on the London and Ghanaian stock exchanges (symbol: TLW) and is a constituent of the FTSE250 index. The Group has interests in over 30 exploration and production licences across eight countries. In March 2021, Tullow committed to becoming Net Zero on its Scope 1 and 2 emissions by 2030. For further information, please refer to our website at www.tullowoil.com.

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Directors' declarations pursuant to Rule 9.6.13R of the Listing Rules

There is no further information to add in respect of Rule 9.6.13R of the Listing Rules.