Grupo CenterPoint Energy, Inc.

CenterPoint Energy Resources Corp. engages in owning and operating natural gas distribution systems. It also offers variable and fixed-price physical natural gas supplies primarily to commercial and industrial customers and gas utilities. It operates through the following segments: Natural Gas Distribution, Energy Services, Midstream Investments, and Other Operations. The Natural Gas Distribution segment refers to the intrastate natural gas sales and natural gas transportation and distribution for residential, commercial, industrial, and institutional customers. The Energy Services segment represents the company’s non-rate regulated gas sales and services operations. The Midstream Investments segment includes equity investment in Enable. The Other Operations segment provides unallocated corporate costs and inter-segment eliminations. CenterPoint Energy Resources was founded in 1882 and is headquartered in Houston, TX.

Indiana Gas Co., Inc. provides natural gas distribution and transportation services. The company was founded on July 16, 1945 and is headquartered in Evansville, IN.

Southern Indiana Gas & Electric Co. provides electric generation, and transmission services. It also provides natural gas distribution and transportation services. The company is headquartered in Evansville, IN.

Vectren Utility Holdings, Inc. engages in the distribution of electricity and natural gas. The company was founded on March 31, 2000 and is headquartered in Evansville, IN.

CenterPoint Energy Houston Electric LLC is a holding company, which engages in the provision of electric transmission and distribution services to retail electric providers. It delivers power from the electric generators to the homes and business in the service area. The firm's operation consists of construction, maintenance, and repairs to transmissions, substation, distribution, and street light systems. The company was founded on August 31, 2002 and is headquartered in Houston, TX.