Centrica plc is an integrated energy company. The Company operates through three segments: International Downstream, International Upstream and Centrica Storage. The Company's International Downstream segment provides residential energy supply, residential services, and business energy supply and services in the United Kingdom, North America and the Republic of Ireland. The International Downstream segment consists of the operations of British Gas, Direct Energy and Bord Gais Energy. The Company's International Upstream segment consists of the operations of Centrica Energy, which is engaged in production, processing, trading and optimization of gas and oil, and also generation, trading and optimization of power from thermal, nuclear and wind sources. The Company's Centrica Storage segment provides gas storage in the United Kingdom. The Company's brands include British Gas, Centrica and Dyno-Rod.