Enquest Regulatory News (ENQ)

Appointment of Clare Spottiswoode as a Non-Executive Directorof EnQuest PLC

14 June 2011. EnQuest PLC is pleased to announce the appointment of Clare Spottiswoode CBE as a Non-Executive Director with effect from 1 July 2011.

Clare has held a number of senior positions in the energy sector including most recently serving as a non-executive director of Tullow Oil PLC in addition to previous roles as Deputy Chairman of British Energy PLC and Director General of Ofgas. She is currently Chairman of Gas Strategies Consulting Ltd and EnergySolutions Inc and serves as a non-executive director at G4S plc and Ilika PLC. Clare is also a member of the Independent Commission on Banking for the UK Treasury.

James Buckee, Chairman of EnQuest:

"I am delighted to welcome Clare to EnQuest as a Non-Executive Director. Clare's wealth of experience from both within and beyond the energy industry will make her an invaluable addition to the Board. I look forward to working with her as EnQuest continues to develop and execute its strategy."

The above disclosure is made pursuant to paragraph 9.6.13R of the Listing Rules of the UK Listing Authority ('UKLA'). There are no other disclosures to be made pursuant to paragraph 9.6.13R (1) - (6) of the Listing Rules.

Contacts:

Michael Waring EnQuest +44 (0) 20 7925 4900

Andrew Mitchell/Dorothy Burwell Finsbury +44 (0) 20 7251 3801

Notes to editors

EnQuest is the largest UK independent producer in the UK North Sea. EnQuest PLC trades on both the London Stock Exchange and the NASDAQ OMX Stockholm. It is a constituent of the FTSE 250 index and OMX Nordix index. Its assets include the Thistle, Deveron, Heather, Broom, West Don and Don Southwest fields. It has interests in 26 production licences covering 34 blocks or part blocks in the UKCS, of which 21 licences are operated by EnQuest.

Biographical Information: Ms. Spottiswoode has significant management and board level experience spanning a number of industries including energy, technology and financial services. She served as a non-executive director of Tullow Oil PLC from 2002-2011 and is Chairman of EnergySolutions EU Limited and Gas Strategies Consulting. Ms. Spottiswoode is also a member of the Independent Commission on Banking for the UK Treasury.

From November 2006 to December 2009, she served as the first policyholder advocate representing the interests of with-profits policyholders in Norwich Union's (a subsidiary of Aviva PLC) proposed reattribution of inherited estates. From 2000 through 2009 she held a number of non-executive directorships including Deputy Chair of Bergesen Worldwide Gas, a gas and shipping company, Deputy Chair of British Energy (a subsidiary of Électricité de France ("EDF"), a company that owns nuclear power stations and provides businesses with electricity, director of GEM BioFuels, a green energy company that converts bio fuels into diesel and director of Advanced Technology (UK) PLC., a communications software provider. Ms. Spottiswoode served as Director General of Ofgas, the regulator of the gas industry in the United Kingdom from 1993 to 1998. During her career she has also acted as an economist at HM Treasury, the United Kingdom's economic and finance ministry responsible for formulating and implementing the Government's financial and economic policy, lectured at London Business School, and set up and managed private business interests.