Lansdowne Oil & Gas plc is an independent oil and gas company based in Dublin, Ireland. Founded in 2005, the company specializes in exploring and developing oil and gas reserves in the Irish Celtic Sea. It holds exploration licenses for the Helvick and the 1/11 Barryroe fields located in the North Celtic Sea basin of the south coast of Ireland. The company is focused on unlocking the potential of these reserves and contributing to Ireland's energy independence.