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El Paso Corporation was a provider of natural gas and related energy products and was one of North America's largest natural gas producers until its acquisition by Kinder Morgan in 2012. It was headquartered in Houston, Texas. United States. Prior to the takeover by Kinder Morgan, the company owned North America's largest natural gas pipeline system which traveled from border-to-border and coast-to-coast.
East-Central Iowa Rural Electric Cooperative is a Urbana, IA-based company in the Energy & Utilities sector.
Manitowoc Public Utilities is a Manitowoc, WI-based company in the Energy and Utilities sector.
Pacific Gas and Electric Company, a subsidiary of PG&E Corporation (NYSE:PCG), is one of the largest combined natural gas and electric utilities in the United States. Based in San Francisco, with more than 20,000 employees, the company delivers some of the nation’s cleanest energy to nearly 16 million people in Northern and Central California.
Oklahoma Gas & Electric (OG+E) is a regulated electric utility company that serves over 750,000 customers in Oklahoma and western Arkansas. OGE Energy Corp. (NYSE: OGE), with headquarters in downtown Oklahoma City, is the parent company of Oklahoma Gas and Electric Company, a regulated electric utility, and Enogex Inc., a natural gas pipeline business. OGE Energy and its subsidiaries have about 3,100 employees.