About Oncor Electric Delivery
Oncor Electric Delivery is the largest utility company in Texas. The Dallas-based utility was established in 1912 and now serves customers with over 141,000 miles of transmission lines across 98 counties in north-central and northwest Texas.
Oncor is currently owned by Sempra Energy and Texas Transmission Investment LLC, and it serves more than 13 million residents and businesses in the Lone Star State. Its service areas include major Texas cities like Dallas–Fort Worth, Midland, Pflugerville, and Wichita Falls.