Oncor Electric Delivery Company is an electric transmission and distribution service provider (TDSP) headquartered in Dallas, Texas. Oncor delivers energy supply to about 10 million consumers. Across the state, it operates 138,500 miles of transmission and distribution lines and more than 3 million meters. If you’re a Texas business owner or resident, you have the power to choose your retail electric provider. However, you still have ties to your utility company. All consumers in the Oncor service area receive their electricity supply through the utility regardless of which retail electric provider they choose. The Oncor service area includes Dallas, Fort Worth, Tyler, Waco, and Midland/Odessa.