Centrica plc is an integrated energy company. The Company operates in four segments: Downstream UK, Upstream UK, Storage UK and North America. The Downstream UK includes of British Gas operations. The Upstream UK includes Centrica Energy operations. The Storage UK includes Centrica Storage operations. The North America segment includes the operations of Direct Energy. On November 11, 2011, the Company announced that its subsidiary, Direct Energy, had acquired home protection plan business Home Warranty of America. On 1 June 2011, the Company completed the sale of Oxxio B.V. In January 2012, it acquired natural gas retailer Vectren Source from Vectren Corporation. In April 2012, Centrica plc purchased Teradata Data Warehouse Appliance platform, Teradata Logical Data Model, Teradata Analytical Applications.