Kambuna Well Test Update

Serica Energy plc
30 April 2008


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


                         KAMBUNA FIELD WELL TEST UPDATE


•  Kambuna-2 well tested at a stabilised rate of 33 million standard
   cubic feet per day

•  Further production tests to be carried out on Kambuna-3 and Kambuna-4
   wells over the course of the next few weeks


London, 30 April 2008 - Serica Energy plc (AIM & TSX-V: SQZ) provides an update
on development activities in the Kambuna field, offshore North Sumatra,
Indonesia.

Having completed the drilling phase of the Kambuna field development programme,
production tests are being carried out on the three production wells and the
results of the first test are now available.

The Kambuna-2 production well tested the target Belumai reservoir over the 97 ft
interval 7,245 to 7,342 ft below mean sea level and produced gas at a maximum
stabilised rate of 33 million standard cubic feet per day (mmscfd) on a 72/64'
choke.  The flowing wellhead pressure during this test was 1,870 pounds per
square inch (psi) and the maximum production rate was limited by the testing
equipment.

A second test was carried out at production rate more representative of that
required from the well when full field production commences.  During this test,
at a choke setting of 48/64',  the Kambuna-2 well produced gas at a stabilised
rate of 19 mmscfd together with 2,000 barrels per day of 53 degrees API
condensate, at a flowing wellhead pressure of 2,280 psi.

Further production tests will be carried out on the Kambuna-3 and Kambuna-4
wells over the course of the next few weeks.

Serica is the operator of the Kambuna Field and holds an interest of 65% in the
project.

Serica CEO Paul Ellis said: 'This is an excellent production test result.  Being
able to produce Kambuna-2 alone at over 30 mmscfd goes a long way to meeting our
target field production rate of around 55 mmscfd.  The test also confirms that
the initial condensate yield from the field is likely to be around 100 barrels
per million cubic feet of gas, or about 5,000 barrels per day.'

Paul Ellis MA (Oxon) Engineering and Serica's Chief Executive, who has over 35
years' experience in the upstream oil and gas industry, has reviewed and
approved the technical information contained in this announcement.


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
Sarah Gingerich                [e-mail]                         [phone]



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