Operations Update

Serica Energy plc
25 September 2007


                               Serica Energy Plc
                          ('Serica' or the 'Company')

                  SERICA ENERGY PROVIDES AN OPERATIONS UPDATE

London, 25 September 2007 - Serica Energy plc (TSX Venture & AIM: SQZ) is
pleased to provide an update on operational activity across its portfolio in its
core regions of Western Europe and South East Asia.

Western Europe

- Spudding of first Columbus appraisal well, UK North Sea
- 2D seismic programme and farm-out onshore Spain

UK North Sea

The first appraisal well on the Columbus discovery on Block 23/16f spudded
yesterday, at a step out location three kilometres north of the initial
discovery well. Well 23/16f-12, in which Serica has a 50% interest, is being
drilled with the SEDCO 704 drilling rig. The purpose of the well is to confirm
most likely resource estimates, investigate further reserve upside and gather
sufficient data to prepare a field development plan for submission in 2008.

As announced by Serica on 20 December 2006, the Columbus discovery well
encountered a gross gas column of at least 125 feet in the Palaeocene Forties
sandstone. A total of 85 feet of the reservoir was tested and the stabilised
average production rates on a 56/64 inch choke during a five hour period were
17.5 million cubic feet of gas per day and 1,060 barrels per day of 47.5 degrees
API condensate.

The most likely net contingent resources of oil equivalent lying in Block 23/16f
attributable to Serica's 50% interest are 10.8 million barrels, according to an
independent report carried out by RPS Energy Limited on behalf of Serica
following the drilling of the discovery well. Serica's partners in Block 23/16f
are Endeavour Energy UK Limited (25%) and EOG Resources United Kingdom Limited
(25%).

Spain

Serica is currently carrying out a 330 kilometre 2D seismic survey on its four
onshore licences in Aragon Province, in the north-eastern part of the country.
Serica has entered into a contract with Beach Petroleum Limited under which
Serica will farm out a 25% interest in the licences and will retain a 75%
interest and operatorship.

South East Asia

- Rig contracted to drill two high impact exploration wells on Biliton PSC in 
Indonesia in Q4 2007
- Installation of field wellhead support tower and drilling / completion of 
three development wells on Kambuna field to be completed in Q1 2008
- 3D seismic survey completed in Block 06/94, offshore Vietnam

Indonesia

The Global Santa Fe GSF 136 drilling rig has been contracted for the drilling of
two wildcat, high impact, exploration wells on the Biliton PSC, located offshore
in a virtually unexplored basin in the central Java Sea, commencing in Q4 2007.
The previously contracted rig was damaged during operations for another company,
but Serica moved quickly to contract the GSF 136 in its place and minimise the
delay to its drilling programme. Serica will operate the wells and retains a 45%
interest following a farmout to Nations Petroleum Company Ltd., which will bear
the majority of the costs of the drilling programme.

In the Glagah-Kambuna PSC offshore North West Sumatra, the development programme
for the Kambuna gas/condensate field is well underway with first production
expected at the end of 2008. The field wellhead support tower has been built and
will be installed Q4 2007, following which two development wells will be drilled
from the tower and the Kambuna #2 well will be recompleted. In addition,
offshore and onshore pipeline route surveys will be carried out in preparation
for the tender for pipeline supply and installation, whilst negotiations for the
sale of the gas and condensate are expected to conclude shortly.

Vietnam

The acquisition of a 780 square kilometre 3D seismic survey has been completed
in Block 06/94, Con Son Basin offshore Vietnam, in which Serica has a 33.3%
interest. The block lies immediately south of the producing Lan Tay and Lan Do
gas fields and immediately east of the Dua and Blackbird oil discoveries.

Serica's Chief Executive, Paul Ellis, commented:
'Serica is set for an extremely active period of exploration, appraisal and
development drilling with operations on six wells in the UK North Sea and
Indonesia over the next six months. In addition, seismic surveys are being
conducted in Spain and Vietnam, whilst preparations for 2008 drilling in Norway
and in the UK Southern Gas Basin are also underway.

'We look forward to the results of the Columbus appraisal well, which is being
drilled at a significant step out location from the original discovery well and
which, if successful, will confirm the potential of the field and put Serica in
a position to prepare a field development plan.'

Enquiries:
Serica Energy plc
Paul Ellis,              [e-mail]          [phone]
Chief Executive Officer
Chris Hearne,            [e-mail]        [phone]
Finance Director

JPMorgan Cazenove
Steve Baldwin            [e-mail]    [phone]
                                                           
Tristone Capital Limited
Majid Shafiq             [e-mail]           [phone]

Pelham Public Relations
-UK
James Henderson          [e-mail]          [phone]
Alisdair
Haythornthwaite          [e-mail] [phone]

CHF - Canada
Kelly Cody               [e-mail]                       [phone]
                         -----------------

Forward Looking Statements

This disclosure contains certain forward looking statements that involve
substantial known and unknown risks and uncertainties, some of which are beyond
Serica Energy plc's control, including: the impact of general economic
conditions where Serica Energy plc operates, industry conditions, changes in
laws and regulations including the adoption of new environmental laws and
regulations and changes in how they are interpreted and enforced, increased
competition, the lack of availability of qualified personnel or management,
fluctuations in foreign exchange or interest rates, stock market volatility and
market valuations of companies with respect to announced transactions and the
final valuations thereof, and obtaining required approvals of regulatory
authorities. Serica Energy plc's actual results, performance or achievement
could differ materially from those expressed in, or implied by, these forward
looking statements and, accordingly, no assurances can be given that any of the
events anticipated by the forward looking statements will transpire or occur, or
if any of them do so, what benefits, including the amount of proceeds, that
Serica Energy plc will derive therefrom.

The TSX Venture Exchange has not reviewed and does not accept responsibility for
                   the adequacy or accuracy of this release.

 To receive Company news releases via email, please contact [e-mail] and
              specify 'Serica press releases' in the subject line.



                      This information is provided by RNS
            The company news service from the London Stock Exchange