Lansdowne Oil & Gas - Update on Reverse Takeover

The information contained within this announcement is deemed by the Company to constitute inside information as stipulated under the Market Abuse Regulations (EU) No. 596/2014 ("MAR"). Upon the publication of this announcement via Regulatory Information Service ("RIS"), this inside information is now considered to be in the public domain. If you have any queries on this, then please contact Steve Boldy, the Chief Executive Officer of the Company (responsible for arranging release of this announcement).

03 October 2025

Lansdowne Oil & Gas plc

("Lansdowne" or the "Company")

Update on Reverse Takeover ("RTO")

Lansdowne Oil & Gas plc pleased to provide an update on the progress of the planned Reverse Takeover.

As previously announced, trading in the Company's shares on AIM has been suspended pending the completion of the RTO, which requires the publication of an admission document, the approval of such a transaction at the Annual General Meeting of the Company and the readmission of the Company's shares to trading on AIM. The Company is pleased to advise that all the RTO workstreams are well advanced with completion of the RTO targeted for Q4 2025.

For further information please contact:

Notes to editors:

About Lansdowne

Lansdowne Oil & Gas (LOGP.LN) is an oil and gas exploration and appraisal company focused on the North Celtic Sea and quoted on the AIM market and head quartered in Dublin.

In May 2023 the application for a Lease Undertaking for the Barryroe Field, in which Lansdowne held a 20% interest, was refused by the Irish Department of the Environment, Climate and Communications.

In June 2023 Lansdowne announced the commencement of action under the Arbitration Process of the Energy Charter Treaty.

On 20 September 2023, Lansdowne announced that, under AIM Rule 15, the Company had been designated to be a cash shell.  Accordingly, the shares of the Company were suspended from trading on AIM as at 07.30 am on 21 March 2024 ("Suspension").

For more information on Lansdowne, please refer to www.lansdowneoilandgas.com