TR-1: NOTIFICATION OF MAJOR INTEREST IN SHARES

1. Identity of     Enquest PLC
the issuer or
the underlying
issuer
of existing
shares to
which voting
rights are
attached: ii
2 Reason for
the
notification
(please tick
the
appropriate
box or boxes):
An acquisition       X
or disposal of
voting rights
An acquisition
or disposal of
qualifying
financial
instruments
which may
result in the
acquisition of
shares already
issued to
which voting
rights are
attached
An acquisition
or disposal of
instruments
with similar
economic
effect to
qualifying
financial
instruments
An event
changing the
breakdown of
voting rights
Other (please
specify):
3. Full name     Swedbank
of person(s)     Robur
subject to the   Fonder
notification     AB
obligation:
iii
4. Full name
of
shareholder(s)
 (if different
from 3.):iv
5. Date of the   13 May
transaction      2013
and date on
which the
threshold is
crossed or
reached: v
6. Date on       14 May
which issuer     2013
notified:
7.               7%
Threshold(s)
that is/are
crossed or
reached: vi,
vii

8. Notified details:
A: Voting rights attached to shares viii, ix
Class/type of            Situation previous                        Resulting
situation after the triggering transaction
sharesif possible using  to the triggering
the ISIN CODE            transaction
Number                       Number                              Number
Number of voting             % of  voting rights x
of                           of                                  of shares
rights
Shares                       Voting
                             Rights
Direct                     Direct xi       Indirect xii  Direct
Indirect
GB00B635TG28             56,193,364        56,193,364              56,159,512
56,159,512     0  6,997%                                     0%

B: Qualifying Financial Instruments
Resulting situation after the triggering transaction
Type of financial            Expiration                  Exercise/
Number of voting                                 % of voting
instrument                   date xiii                   Conversion Period xiv
rights that may be                               rights

acquired if the

instrument is

exercised/ converted.

C: Financial Instruments with similar economic effect to Qualifying Financial
Instruments xv, xvi
Resulting situation after the triggering transaction
Type of financial          Exercise price  Expiration date xvii  Exercise/
Number of voting rights instrument refers to  % of voting rights xix, xx
instrument                                                       Conversion
period xviii

Nominal           Delta

Total (A+B+C)
Number of voting rights
Percentage of voting rights
56,159,512
6.997%

9. Chain of
controlled
undertakings
through which
the voting
rights and/or
the
financial
instruments
are
effectively
held, if
applicable:
xxi

Proxy Voting:
10. Name of
the proxy
holder:
11. Number of
voting rights
proxy holder
will cease
to hold:
12. Date on
which proxy
holder will
cease to hold
voting rights:

13. Additional  Notification
information:    is based on
                total voting
                rights figure
                of
                802,660,757
14. Contact     Paul
name:           WatersCompany
                Secretary
15. Contact     020 7925 4900
telephone
number: