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ONE Gas, Inc. (NYSE: OGS) is a 100-percent regulated natural gas utility, and trades on the New York Stock Exchange under the symbol "OGS." ONE Gas is included in the S&P MidCap 400 Index, and is one of the largest natural gas utilities in the United States. ONE Gas provides natural gas distribution services to more than 2 million customers in Oklahoma, Kansas and Texas. ONE Gas is headquartered in Tulsa, Okla., and its divisions include Oklahoma Natural Gas, the largest natural gas distributor in Oklahoma; Kansas Gas Service, the largest in Kansas, and Texas Gas Service, the third largest in Texas, in terms of customers. Its largest natural gas distribution markets by customer count are Oklahoma City and Tulsa, Okla.; Kansas City, Wichita and Topeka, Kan.; and Austin and El Paso, Texas. ONE Gas serves residential, commercial, industrial, transportation and wholesale customers in all three states.
CILCORP, Inc. is a holding company for Central Illinois Light Company (CILCO), QST Enterprises, Inc. (QST), CILCORP Investment Management, Inc. (CIM), and CILCORP Ventures, Inc. (CVI). CILCO is engaged in the generation, transmission, distribution and
First Electric Cooperative Corporation is a Jacksonville, AR-based company in the Energy and Utilities sector.
Southern Illinois Electric is a Dongola, IL-based company in the Energy and Utilities sector.
Ouachita Electric Cooperative Corporation is a Camden, AR-based company in the Energy and Utilities sector.