Notice to holders of the Company's Retail Notes

THIS NOTICE IS IMPORTANT AND REQUIRES THE IMMEDIATE ATTENTION OF NOTEHOLDERS (AS DEFINED BELOW). IF NOTEHOLDERS ARE IN ANY DOUBT AS TO THE ACTION THEY SHOULD TAKE, THEY SHOULD SEEK THEIR OWN FINANCIAL AND LEGAL ADVICE IMMEDIATELY FROM THEIR STOCKBROKER, SOLICITOR, ACCOUNTANT OR OTHER INDEPENDENT FINANCIAL OR LEGAL ADVISER.

31 July 2018

ENQUEST PLC (the "Company")

Notice to holders ("Noteholders") of the Company's £171,851,269  7 per cent. Extendable PIK Toggle Notes due 2022

(ISIN: XS0880578728, Common Code: 088057872)

(the "Notes")

Notice is hereby given that the Cash Payment Condition (Condition 5A(a) of the terms and conditions of the Notes (the "Conditions")) in respect of the Interest Payment Date falling on 15 August 2018 has been satisfied and interest due on the Notes on such Interest Payment Date will be paid in cash (in accordance with Condition 5(a) of the Conditions).

The Record Date for determining the entitlement of individual Noteholders to the interest paid in cash will be the close of business on 14 August 2018.

Words and expressions defined in the Conditions shall have the same meaning when used in this notice.

For further information, please visit the Company's Retail Bond page on its Investor Relations website at www.enquest.com/investors or contact:

Investor Relations

EnQuest PLC

Fifth Floor, Cunard House

15 Regent Street

London SW1Y 4LR

United Kingdom

Tel: 0207 925 4900

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