CenterPoint Energy, Inc. is a public utility holding company whose indirect wholly owned subsidiaries include CenterPoint Energy Houston Electric, LLC (CenterPoint Houston), which engages in the electric transmission and distribution business in a 5,000-square mile area of the Texas Gulf Coast, which includes the city of Houston, and CenterPoint Energy Resources Corp. (CERC Corp. and, together with its subsidiaries, CERC), which owns and operates natural gas distribution systems in six states. Subsidiaries of CERC Corp. own interstate natural gas pipelines and gas gathering systems and provide ancillary services. The Company operates in six business segments: Electric Transmission & Distribution, Natural Gas Distribution, Competitive Natural Gas Sales and Services, Interstate Pipelines, Field Services and Other Operations. Effective November 1, 2011, CenterPoint Energy Services, Inc., an indirect wholly owned subsidiary of the Company, announced that it acquired Asgard Energy, LLC.