Constellation Energy Group Inc. is an energy company that conducts its business through various subsidiaries, including a merchant energy business and Baltimore Gas and Electric Company (BGE). The Company’s merchant energy business is a provider of energy-related products and services for a variety of customers. BGE is a regulated electric transmission and distribution utility company and a regulated gas distribution utility company with a service territory that covers the City of Baltimore and all or part of 10 counties in central Maryland. Its segments include Merchant Energy, Regulated Electric and Regulated Gas. Its remaining non-regulated businesses include design, construct and operate renewable energy, heating, cooling and cogeneration facilities for commercial, industrial and governmental customers. In March 2009, the Company divested its Houston-based downstream gas unit, as well as the majority of its London-based coal, freight and international commodities business.