Change of Company Secretary

17 October 2013

EnQuest PLC announces the appointment of Mr Stefan Ricketts, General Counsel, as
Company Secretary with immediate effect. Mr Stefan Ricketts will continue in his
role as General Counsel to the Company in addition to his new role as Company
Secretary.

Mr Paul Waters will step down as Company Secretary with immediate effect, and
will provide consultancy services to the Company on a continuing basis.

For further information please contact:

EnQuest
PLC
 Tel: +44 (0)20 7925 4900
Stefan Ricketts (General Counsel and Company Secretary)
Michael Waring (Head of Communications & Investor Relations)

Notes to editors

EnQuest is the largest UK independent producer in the UK North Sea. Oil and gas
development and production company EnQuest PLC, trades on both the London Stock
Exchange and the NASDAQ OMX Stockholm. It is a constituent of the FTSE 250
index. Its assets include the Thistle, Deveron, Heather, Broom, West Don, Don
Southwest and Conrie producing fields and the Alma and Galia development. At the
end of H1 2013, EnQuest had interests in 33 production licences covering 45
blocks or part blocks in the UKCS, of which 25 licences are operated by
EnQuest. In addition, EnQuest also has an interest in two blocks offshore in
Sabah, Malaysia.

EnQuest believes that the UKCS represents a significant hydrocarbon basin in a
low risk region, which continues to benefit from an extensive installed
infrastructure base and skilled labour. EnQuest believes that its assets offer
material organic growth opportunities, driven by exploitation of current
infrastructure on the UKCS and the development of low risk near field
opportunities. www.enquest.com