10 April 2007

Lansdowne Oil & Gas plc (“Lansdowne” or “the Company”)

Notification of major interest in shares

The Company announces that it was notified on 15 March 2007 in accordance with the Disclosure and Transparency Rules that on 15 March 2007 FMR Corp held 907,620 ordinary shares of 5p each in Lansdowne, equivalent to 4.36 per cent of the issued voting share capital of the Company. The shares are held in the name of Mellon Bank N.A.


A description of its business;Company
The names of its directors and brief biographical details on each, as would normally be included in an admission document;Directors
A description of the responsibilities of the members of the board of directors and details of any sub-committees of the board of directors and their responsibilities;Corporate Governance
Its country of incorporation and main country of operation;Company
Details of any other exchanges or trading platforms on which the AIM company has applied or agreed to have its AIM securities admitted or traded;Not applicable
Number of securities in issue;Major Shareholders
Insofar as it is aware, the percentage of AIM securities that are not in public hands and the identity and holdings of significant shareholders. (This information should be updated at least every 6 months);Major Shareholders
Where the AIM company is not incorporated in the UK, a statement that the rights of shareholders may be different from the rights of shareholders in a UK incorporated company;Not applicable
Details of any restrictions on the transfer of the AIM securities;Not applicable
Its most recent annual report published pursuant to rule 19 and all half-yearly or similar reports published since the last annual report pursuant to rule 18;Financial Reports
All notifications the AIM company has made in the past 12 months;Press Releases
Any prospectus, admission document, circular or similar shareholder publication published within the past 12 months;Placing
Details of its nominated adviser and other key advisers; andAdvisers
Articles of AssociationArticles of Association
Corporate GovernanceCorporate Governance
UK City Code on Takeovers and MergersMajor Shareholders

Lansdowne Oil and Gas plc
Britannia House
Endeavour Drive
Arnhall Business Park
AB32 6UF
Tel: +44 (0)1224 748480
Fax: +44 (0)1224 748481
Email: info@www.lansdowneoilandgas.com
Web: www.www.lansdowneoilandgas.com