Holding(s) in Company

Westmount Energy Limited
21 March 2007



TR-1(i): notification of major interests in shares

+---------------------------------------------+------------------------------+
|1. Identity of the issuer or the underlying  |       Westmount Energy       |
|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 or disposal of voting rights                         |       |
+--------------------------------------------------------------------+-------+
|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                    |       |
+---------------------------------------------+----------------------+-------+
|3. Full name of person(s) subject to the     |    Hargreave Hale Limited    |
|notification obligation(iii):                |                              |
+---------------------------------------------+------------------------------+
|4. Full name of shareholder(s) (if different |                              |
|from 3.)(iv):                                |                              |
+---------------------------------------------+------------------------------+
|5. Date of the transaction and date on which |                              |
|the threshold is crossed or reached(v):      |                              |
+---------------------------------------------+------------------------------+
|6. Date on which issuer notified:            |        20 March 2007         |
+---------------------------------------------+------------------------------+
|7. Threshold(s) that is/are crossed or       |                              |
|reached:                                     |                              |
+---------------------------------------------+------------------------------+
|8. Notified details:                         |                              |
+---------------------------------------------+----------------------+-------+
+---------------------------------------------+----------------------+-------+


+----------------------------------------------------------------------------------------------+
|A: Voting rights attached to shares                                                           |
+---------------+------------------+-----------------------------------------------------------+
|Class/type of  |Situation previous|Resulting situation after the triggering           |
|shares         |to the Triggering |transaction (vii)                                  |
|               |transaction (vi)  |                                                   |
|if possible    +----------+-------+----------------+----------------+-----------------+
|using the ISIN |Number of |Number |Number of shares|Number of voting|%of voting       |
|CODE           |Shares    |of     |                |rights ix       |rights           |
|               |          |Voting |                |                |                 |
|               |          |Rights +------+--------+-----------+---+------------+
|               |          |viii   |Direct|Indirect|Direct|Indirect|Direct|Indir|
|               |          |       |      |        |x     |xi      |      |ect         |
+---------------+----------+-------+------+--------+------+--------+------+--------+
|Ordinary       |636,000   |8.53%  |N/A   |N/A     |N/A   |N/A     |N/A   |N/A     |
|               |          |       |      |        |      |        |      |        |
|GB00B0S5KR31   |          |       |      |        |      |        |      |        |
+---------------+----------+-------+------+--------+------+--------+------+--------+

+------------------------------------------------------------------------------+
|B: Financial Instruments                                                      |
+------------------------------------------------------------------------------+
|Resulting situation after the triggering transaction xii                      |
+---------------+-----------+------------------+-------------------+-----------+
|Type of        |Expiration |Exercise/         |Number of voting   |% of voting|
|financial      |date xiii  |Conversion Period/|rights that may be |rights     |
|instrument     |           |Date xiv          |acquired if the    |           |
|               |           |                  |instrument is      |           |
|               |           |                  |exercised/         |           |
|               |           |                  |converted.         |           |
+---------------+-----------+------------------+-------------------+-----------+
|               |           |                  |                   |           |
+---------------+-----------+------------------+-------------------+-----------+

+-----------------------------------------------------------------------------+
|Total (A+B)                                                                  |
+-------------------------------------+---------------------------------------+
|Number of voting rights              |% of voting rights                     |
+-------------------------------------+---------------------------------------+
|636,000                              |8.53%                                  |
+-------------------------------------+---------------------------------------+

+-----------------------------------------------------------------------------+
|9. Chain of controlled undertakings through which the voting rights and/or   |
|the financial instruments are effectively held, if applicable xv:            |
+-----------------------------------------------------------------------------+
|295,000 of these shares are held for unit trusts operated by Marlborough Fund|
|Managers Ltd, for which Hargreave Hale manages the investments on a          |
|discretionary basis. The remaining balance is held on behalf of other        |
|discretionary clients.                                                       |
+-----------------------------------------------------------------------------+

+-----------------------------------------------------------------------------+
|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 information:     |Notification of Major Shareholding:         |
|                                |                                            |
|                                |This disclosure is in accordance with the   |
|                                |requirements of the transitional provisions |
|                                |of DTR5                                     |
+--------------------------------+--------------------------------------------+
|14. Contact name:               |David Clueit                                |
+--------------------------------+--------------------------------------------+
|15. Contact telephone number:   |01253 754739                                |
+--------------------------------+--------------------------------------------+





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