Lansdowne Resources Plc is engaged in the exploration and development of oil and gas resources, with a focus on the Barryroe oil and gas project in the Celtic Sea. The company has also expanded its activities through the acquisition of Sao Gabriel Mining, which exposes it to mining operations. Lansdowne seeks to secure compensation for its investment in the Barryroe project, which is pursued under the Terms of the Energy Charter Treaty. The company operates in the upstream oil and gas sector and is subject to various financial and operational risks associated with commodity price volatility and regulatory developments.