Members

Pacific Gas & Electric Company

Pacific Gas and Electric Company is one of the largest combined natural gas and electric energy companies in the United States. Based in San Francisco, PG&E has 42,000 miles of gas distribution pipeline and 6,400 miles of transmission pipelines, which delivers some of the nation’s cleanest energy to nearly 4.3 million people, covering 70,000 square miles in Northern and Central California.

SoCalGas®
As the nation's largest natural gas distribution utility, we deliver clean, safe and reliable energy to 21.6 million consumers through 5.9 million meters in more than 500 communities. Our service territory encompasses approximately 20,000 square miles in diverse terrain throughout Central and Southern California, from Visalia to the Mexican border.

SoCalGas is a regulated subsidiary of Sempra Energy (NYSE: SRE), a Fortune 500 energy services holding company based in San Diego. For additional information, please visit the Investor Relations section.

Black Hills Energy
Black Hills Energy serves over 1 million gas customers in Arkansas, Colorado, Iowa, Kansas, Montana, Nebraska, and Wyoming. Black Hills Energy is a growth-oriented, vertically integrated energy company with a mission of improving life with energy and a vision to be the energy partner of choice. The company's corporate headquarters is located in Rapid City SD and has other main offices supporting gas operations in Denver, CO and Papillion NE.

The company's non-regulated businesses generate wholesale electricity, produce natural gas, oil and coal, and market energy. Black Hills employees partner to produce results that improve life with energy.

Vectren
Vectren Corporation is an energy holding company headquartered in Evansville, Ind. Vectren's wholly owned subsidiary, Vectren Utility Holdings, Inc., serves as the intermediate holding company for three operating utilities: Vectren Energy Delivery of Indiana - North (Vectren North), Vectren Energy Delivery of Indiana - South (Vectren South) and Vectren Energy Delivery of Ohio (VEDO). Vectren provides natural gas and/or electricity to more than one million customers in 74 counties in Indiana and west central Ohio.

Xcel Energy
Xcel Energy has utility facilities in 9 states. The service territory spans 8 states, with natural gas service in 5 states. We have almost 35,000 miles of natural gas distribution pipeline providing gas service to nearly 2 million customers. Total service territory (natural gas & electricity) covers 110,000 square miles.

Colorado Springs Utilities
Colorado Springs Utilities is a four-service municipality serving natural gas, electricity, water and waste water.  Our gas service territory spans 524 square miles.  We have almost 2,500 miles of natural gas distribution pipeline providing gas service to nearly 200,000 customers.

Southwest Gas Corporation
Southwest Gas Corporation was founded in 1931. With over 31,000 miles of distribution pipeline, the company provides natural gas service to more than 1.9 million customers in Arizona, Nevada, and portions of California.