Admission to Trading

21 February 2018

ENQUEST PLC(the "Company")

£5,811,396 7.00 per cent. Extendable PIK Toggle Notes due 15 April 2022 (the "Additional Notes") (consolidated and forming a single series with the existing £166,039,873 7.00 per cent. Extendable PIK Toggle Notes originally due 15 February 2022, as extended to 15 April 2022 (ISIN: XS0880578728))

On 20 February 2018, the Additional Notes were admitted to the Official List of the UK Listing Authority and to trading on the order book for retail bonds segment of the regulated market of the London Stock Exchange plc.

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

Investor RelationsEnQuest PLCFifth Floor, Cunard House15 Regent StreetLondon SW1Y 4LRUnited Kingdom

Tel: +44 (0)20 7925 4900