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Electric Reliability Council of Texas, Inc. is one of the leading companies in the Energy & Utilities sector.
Heartland Consumers Power District is a Madison, SD-based company in the Energy and Utilities sector.
Intermountain Power Service Corporation is a Delta, UT-based company in the Energy and Utilities sector.
Gas Transmission Systems is a Chico, CA-based company in the Energy and Utilities sector.
Southern Company Gas is a wholly owned subsidiary of Atlanta-based Southern Company (NYSE:SO), America`s premier energy company. Southern Company Gas serves approximately 4.2 million natural gas utility customers through its regulated distribution companies in four states. Other non-utility businesses include asset management for natural gas wholesale customers and ownership and operation of natural gas storage facilities.