Newark, New Jersey-based Public Service Enterprise Group, Inc., or PSEG (NYSE: PEG), is a diversified utility holding company that operates through four wholly-owned subsidiaries: Public Service Electric and Gas Company (PSE&G), PSEG Power LLC, and the two direct subsidiaries of PSEG Energy Holdings: PSEG Global L.L.C. and PSEG Resources L.L.C. PSE&G is a regulated utility company providing electric service roughly to 2.1 million customers and gas service to approximately 1.7 million customers in New Jersey. In the 3rd quarter of 2007, this regulated subsidiary accounted for 52% of the Group's operating revenue and 26% of the consolidated operating income. PSEG Power, the company's non-regulated subsidiary, which engaging in wholesale power generation and energy trading activities, contributed 39% and 61%, respectively, to the Group's operating revenue and operating income, while the Holdings segment accounted for 9% of total operating revenue and 13% of operating income during the 3rd quarter of 2007. PSEG Energy Holdings, through PSEG Global, owns and operates electric generation and distribution facilities in Asia, Europe, North America, and Latin America. Through its Resources unit, the company invests in energy-related financial transactions.