Lansdowne Oil & Gas plc Lansdowne Oil & Gas plc is an independent oil and gas exploration and appraisal company focused on opportunities in the North Celtic Sea Basin offshore southern Ireland; it holds licensing interests including a 20% economic stake in the Barryroe oil field, a 100% interest in the Amergin licence encompassing Cretaceous oil targets and the Helvick oil field, and further licences such as Rosscarbery and Midleton containing gas fields and prospects; the company targets shallow-water environments leveraging proven petroleum systems for low-cost drilling and high-return potential. Incorporated in England and Wales on 23 December 2005 with its registered office at C/O Pinsent Masons LLP, 30 Crown Place, London EC2A 4ES, and operating headquarters in Dublin, Ireland, Lansdowne lists on the AIM market of the London Stock Exchange. Its activities center on appraising discovered oil and gas assets with contingent resources to advance toward commercial development, emphasizing underexplored areas relative to the North Sea with competitive fiscal terms. Shares remain suspended from trading on AIM since March 2024 following designation as a cash shell under AIM Rule 15 in September 2023; the company pursues a planned reverse takeover with workstreams well advanced and completion targeted for the fourth quarter of 2025, requiring an admission document, shareholder approval at the annual general meeting, and readmission to trading; it advances an Energy Charter Treaty arbitration claim initiated in June 2023, with discussions ongoing for third-party litigation funding and a retained 20% Barryroe interest even if the licence reinstates; Lansdowne extended a convertible loan agreement as a related party transaction, implemented cost reductions lowering overheads from early 2024, and screens potential acquisition assets for the reverse takeover.