How do i contact el paso electric? El Paso Electric Toll free: 1-800-592-1634 (915) 543-5711 Customer Service Texas: (915) 543-5970 New Mexico: (575) 526-5555 Trouble and Outage Number Texas: (915) 877-3400 New Mexico: (575) 523-7591.Where is the headquarters of el paso? El Paso Corp. headquarters. 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.What does el paso corporation do? El Paso Corp. headquarters. 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.What happened to el paso corporation? The El Paso Corporation also owned fifty percent of Great Lakes Transmission and Florida Gas Transmission and employed 6,000 people. Florida Gas is part of Southern Natural Gas. In 1999 the company doubled in size when it merged with Birmingham, Alabama based natural gas giant Sonat. It went on to acquire Coastal Corporation in 2001.