Satisfaction of conditions precedent

THIS ANNOUNCEMENT IS NOT A PROSPECTUS OR PROSPECTUS EQUIVALENT DOCUMENT AND INVESTORS SHOULD NOT MAKE ANY INVESTMENT DECISION IN RELATION TO THE ORDINARY SHARES EXCEPT ON THE BASIS OF THE INFORMATION IN THE PROSPECTUS.

EnQuest PLC

("EnQuest", "the Company" or "the EnQuest Group")

Satisfaction of conditions precedent to completion of the Proposed Acquisitions

On 10 June 2026, EnQuest announced the acquisition of Participating Interests in four PSCs in Malaysia (the "Proposed Acquisitions"). On completion, these will deliver an immediate step change in Group production, reserves and cash flow, alongside significant future growth opportunities.

EnQuest is today pleased to announce that all conditions precedent to completion of the Proposed Acquisitions have been satisfied in full, namely:

• Passing of the Resolution at the General Meeting, announced on 11 August 2026; and
• PETRONAS having issued the PETRONAS Farmout Approval.

These steps follow receipt of waivers from the existing PSC partners of their pre-emption rights in relation to Package 2 (announced on 10 July 2026) and publication of the combined circular and prospectus (the "Prospectus") in relation to the Proposed Acquisitions (released on 24 July 2026).

EnQuest continues to expect completion of the Proposed Acquisitions to occur on 31 December 2026, with the economic effective date of the Proposed Acquisitions on 1 January 2027.

As previously announced, application will be made for the readmission of the entire issued share capital of EnQuest ("Ordinary Shares") to the Equity Shares (Commercial Companies) category of the Official List of the Financial Conduct Authority and to trading on the London Stock Exchange plc's main market for listed securities ("Readmission"). Readmission is expected to take place at 8am on or around 4 January 2027.

Unless otherwise defined, all definitions used in this announcement have the same meanings as set out in the Prospectus.