Holding(s) in Company

Sterling Energy PLC
26 September 2007


Form TR-1 with annex. FSA Version 2.1 updated April 2007

+---------------------------------------------------+
|For filings with the FSA include the annex         |
|                                                   |
|For filings with issuer exclude the annex          |
+---------------------------------------------------+

+------------------------------------------------------------------------------------------------+
|TR-1: Notifications of Major Interests in Shares                                                |
+------------------------------------------------------------------------------------------------+

+-----------------------------------------------------------+--------------------------------------+
|                                                           |                                      |
|1. Identity of the issuer or the underlying issuer of      |Sterling Energy plc                   |
|existing shares to which voting rights are attached:       |                                      |
+-----------------------------------------------------------+--------------------------------------+
|                                                                                                  |
|2. Reason for notification (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             |            |
+-------------------------------------------------------------------------------------+------------+
|                                                                                     |            |
|                                                                                     |            |
|An event changing the breakdown of voting rights                                     |            |
+-------------------------------------------------------------------------------------+------------+
|                                                                                     |            |
|                                                                                     |            |
|Other (please specify):______________                                                |            |
+--------------------------------------------------+----------------------------------+------------+
|                                                  |                                               |
|3. Full name of person(s) subject to notification |Mr Denis O'Brien                               |
|obligation:                                       |                                               |
+--------------------------------------------------+-----------------------------------------------+
|                                                  |                                               |
|                                                  |                                               |
|4. Full name of shareholder(s) (if different from |Baycliffe Limited (as nominee)                 |
|3):                                               |                                               |
+--------------------------------------------------+-----------------------------------------------+
|                                                  |                                               |
|                                                  |                                               |
|5. Date of transaction (and date on which the     |20 September 2007                              |
|threshold is crossed or reached if different):    |                                               |
+--------------------------------------------------+-----------------------------------------------+
|                                                  |                                               |
|                                                  |                                               |
|6. Date on which issuer notified:                 |25 September 2007                              |
+--------------------------------------------------+-----------------------------------------------+
|                                                  |                                               |
|                                                  |                                               |
|7. Threshold(s) that is/are crossed or reached:   |5%                                             |
+--------------------------------------------------+--------+-------------------------+------------+
+--------------------------------------------------+--------+-------------------------+------------+




+-------------------------------------------------------------------------------------------------------------+
|8: Notified Details                                                                                          |
+-------------------------------------------------------------------------------------------------------------+
|A: Voting rights attached to shares                                                                          |
|                                                                                                             |
|                                                                                                             |
+---------------+--------------------------+------------------------------------------------------------------+
|Class/type of  |Situation previous to the |Resulting situation after the triggering transaction              |
|shares         |triggering transaction    |                                                                  |
|               +-------------+------------+------------+---------------------------+-------------------------+
|If possible use|Number of    |Number of   |Number of   |Number of voting rights    |Percentage of voting     |
|ISIN code      |shares       |voting      |shares      |                           |rights                   |
|               |             |rights      |            +-------------+-------------+------------+------------+
|               |             |            |            |             |             |            |            |
|               |             |            |            |             |             |            |            |
|               |             |            |            |Direct       |Indirect     |Direct      |Indirect    |
+--------------++-----------+-+----------+-+----------+-+-----------+-+-----------+-+----------+-+------------+
|GB0005299929   |N/A          |N/A         |N/A         |  94,248,308 |N/A          |5.75%       |N/A         |
+--------------++-----------+-+----------+-+----------+-+-----------+-+-----------+-+----------+-+------------+
+--------------++-----------+-+----------+-+----------+-+-----------+-+-----------+-+----------+-+------------+

+---------------------------------------------------------------------------------------------------+
|B: Financial Instruments                                                                           |
|                                                                                                   |
|                                                                                                   |
+---------------------------------------------------------------------------------------------------+
|Resulting situation after the triggering transaction                                               |
|                                                                                                   |
|                                                                                                   |
+-------------------+-------------------+-------------------+-------------------+-------------------+
|Type of financial  |Expiration date    |Exercise/          |No. of voting      |Percentage of      |
|instrument         |                   |conversion period/ |rights that may be |voting rights      |
|                   |                   |date               |acquired (if the   |                   |
|                   |                   |                   |instrument         |                   |
|                   |                   |                   |exercised/         |                   |
|                   |                   |                   |converted)         |                   |
+-------------------+-------------------+-------------------+-------------------+-------------------+
|                   |                   |                   |                   |                   |
|                   |                   |                   |                   |                   |
|                   |                   |                   |                   |                   |
+-------------------+-------------------+-------------------+-------------------+-------------------+



+------------------------------------------------------------------------------------------------+
|Total (A+B)                                                                                     |
|                                                                                                |
|                                                                                                |
+-----------------------------------------------+------------------------------------------------+
|Number of voting rights                        |Percentage of voting rights                     |
+-----------------------------------------------+------------------------------------------------+
|94,248,308                                     |5.75%                                           |
+-----------------------------------------------+------------------------------------------------+



+------------------------------------------------------------------------------------------------+
|9. Chain of controlled undertakings through which the voting rights and /or the financial       |
|instruments are effectively held, if applicable:                                                |
+------------------------------------------------------------------------------------------------+
|Denis O'Brien holds 27,332,032 shares in his name                                               |
|                                                                                                |
|Baycliffe Limited holds 66,916,276 as nominee                                                   |
+------------------------------------------------------------------------------------------------+

+------------------------------------------------------------------------------------------------+
|Proxy Voting:                                                                                   |
|                                                                                                |
|                                                                                                |
+------------------------------------------------+-----------------------------------------------+
|10. Name of 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 information:                     |                                               |
|                                                |                                               |
|                                                |                                               |
+------------------------------------------------+-----------------------------------------------+
|14 Contact name:                                |Christopher Tushingham                         |
|                                                |                                               |
|                                                |                                               |
+------------------------------------------------+-----------------------------------------------+
|15. Contact telephone name:                     |01624 646 846                                  |
|                                                |                                               |
|                                                |                                               |
+------------------------------------------------+-----------------------------------------------+


For notes on how to complete form TR-1 please see the FSA website.



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