Electric Utilities Hot Deals Member To Member Deals Narrow search by: Keyword: Results Found: 2 View On Map new search Sort by: A-Z Print Oncor Electric Delivery Company Headquartered in Dallas, Oncor Electric Delivery Company LLC is a regulated electric transmission and distribution service provider that serves nearly 10 million customers across Texas. 14400 Josey Ln. Farmers Branch, TX 75234 Website (972) 888-1320 Reliant, an NRG company 2745 Dallas Parkway, Ste. 200 Plano, TX 75093 Website (469) 277-4083