Holding(s) in Company

Sound Oil PLC
09 November 2007


TR-1 NOTIFICATION OF MAJOR INTERESTS IN SHARES

(1) Identity of the issuer or the underlying issuer of existing shares to which
voting rights are attached:

Sound Oil plc

(2) Reason for the notification (please state Yes/No):

An acquisition or disposal of voting rights (YES)

An acquisition or disposal of financial instruments which may result in the
acquisition of shares already issued to which voting rights are attached: (NO)

An event changing the breakdown of voting rights: (NO)

Other (please specify): (NO)

(3) Full name of person(s) subject to the notification obligation:

Credit Suisse Securities (Europe) Limited

(4) Full name of shareholder(s) (if different from (3)):


(5) Date of the transaction and date on which the threshold is crossed or
reached (if different):

6 November 2007

(6) Date on which issuer notified:

8 November 2007

(7) Threshold that is crossed or reached:

10%, 9%

(8) Notified details:

A: Voting rights attached to shares
+-------------+---------------------+-----------------------------------------------+
|Class/type of|Situation previous to|                                               |
|             |the                  |                                               |
+-------------+---------------------+-----------------------------------------------+
|Shares       |Triggering           |   Resulting situation after the triggering    |
|             |transaction          |                  transaction                  |
+-------------+----------+----------+----------+-------------------+----------------+
|             |          |Number of |          |                   |                |
+-------------+----------+----------+----------+-------------------+----------------+
|using the    |Number of |Voting    |Number of |Number of Voting   |                |
+-------------+----------+----------+----------+-------------------+----------------+
|ISIN code    |Shares    |Rights    |Shares    |Rights             |% of voting     |
|             |          |          |          |                   |rights          |
+-------------+----------+----------+----------+----------+--------+-------+--------+
|             |          |          |Direct    |Direct    |Indirect|Direct |Indirect|
+-------------+----------+----------+----------+----------+--------+-------+--------+
|ORDINARY     |69,344,356|69,344,356|57,380,697|57,360,697|N/A     |8.28%  |N/A     |
|SHARES       |          |          |          |          |        |       |        |
|             |          |          |          |          |        |       |        |
|GB00B09VL556 |          |          |          |          |        |       |        |
+-------------+----------+----------+----------+----------+--------+-------+--------+



B: Financial instruments
+---------------------------------------------------------------------------------+
|Resulting situation after the triggering transaction                             |
+-------------------+-------------+---------------+---------------+---------------+
|Type of Financial  |Expiration   |Exercise /     |Number of      |% of voting    |
+-------------------+-------------+---------------+---------------+---------------+
|Instrument         |Date         |Conversion     |voting rights  |rights         |
+-------------------+-------------+---------------+---------------+---------------+
|                   |             |Period /       |that may be    |               |
+-------------------+-------------+---------------+---------------+---------------+
|                   |             |Date           |acquired (if   |               |
+-------------------+-------------+---------------+---------------+---------------+
|                   |             |               |the instrument |               |
+-------------------+-------------+---------------+---------------+---------------+
|                   |             |               |is exercised / |               |
+-------------------+-------------+---------------+---------------+---------------+
|                   |             |               |converted)     |               |
+-------------------+-------------+---------------+---------------+---------------+
|N/A                |             |               |               |               |
+-------------------+-------------+---------------+---------------+---------------+
|                   |             |               |               |               |
+-------------------+-------------+---------------+---------------+---------------+

Total (A+B)
+-----------------------------------+--------------------------------------------+
|Number of voting rights            |% of voting rights                          |
+-----------------------------------+--------------------------------------------+
|57,360,697                         |8.28%                                       |
+-----------------------------------+--------------------------------------------+
|                                   |                                            |
+-----------------------------------+--------------------------------------------+

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

Credit Suisse Securities (Europe) Limited is a part of the Investment Banking
division of Credit Suisse ("CSIBD"), which is part of the Credit Suisse Group
("CSG"). CSIBD is a segregated business unit within CSG with an independent
management structure and exercises its voting rights independently from other
divisions of CSG.

Proxy Voting:

(10) Name of the proxy holder:

N/A

(11) Number of voting rights proxy holder will cease/acquire to hold:

N/A

(12) Date on which proxy holder will cease/acquire to holding voting rights:

N/A

(13) Additional information:

(14) Contact name:

Glenda Burford

(15) Contact number:

020 7888 3599




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