What is Oncor Energy?
Oncor Energy is a Texas electric delivery company operating for over 100 years and headquartered in Dallas, TX. Founded in 1912, it’s grown into Texas’s largest energy delivery company, serving more than 13 million customers through transmission and distribution lines spanning 144,000 miles.1 As a utility company, Oncor delivers your energy but relies on retail electricity providers (REPs) like Just Energy to sell and service your electricity.
Just Energy Plans Available in the Oncor Service Area
Oncor Energy Service Areas
Oncor Energy is a utility company in the Dallas, Fort Worth, and Waco area. In total, Oncor provides services to over 400 communities in 98 counties of North, Central, and West Texas.2
Shop Electricity Rates in the Oncor Energy Service Area
Dallas Electricity Rates
Dallas is one of Texas’s major metro areas, so there are many energy providers to choose from within Oncor’s service area.
Fort Worth Electricity Rates
Fort Worth, another booming Texas city, also provides residents with a competitive energy market.
Waco Electricity Rates
In Waco, you’ll find a growing mix of residents who depend on Oncor’s infrastructure to deliver their energy needs.
The benefit of living in a deregulated market is that you can shop for your electricity provider. Some electric companies available for the Oncor area include Just Energy, Tara Energy, and Amigo Energy.
How Just Energy Operates in Oncor Energy’s Service Areas
Just Energy and Oncor work together for your energy needs. Just Energy sells to you the electricity you use, and Oncor Energy (as the utility company) delivers it. Oncor is responsible for monitoring and measuring energy consumption in your home or business, and it owns the infrastructure, such as towers, wires, poles, and lines.
Just Energy buys electricity in bulk from producers and sells it to customers like you. Just Energy has numerous Texas electricity plans tailored to communities where Oncor operates, including fixed- and variable-rate plans and free energy plans during certain hours.
Learn more about utility vs energy providers.
How to Contact Oncor Energy
You can contact Oncor if there’s an outage, meter issue, or emergency (downed power line, gas leak). Here’s the information you need:
Customer Service:
888-313-6862
Email Address:
Website:
Report an Outage:
888-313-4747 or online form
Oncor Energy FAQS
Who is Oncor Energy?
Oncor Energy is the biggest utility company in Texas. It continually expands its system of poles and wires to meet the state’s ever-growing population.
Is Oncor just in Texas?
Yes, Oncor only delivers electricity to certain parts of Texas.
Does Oncor offer electricity plans?
No, Oncor doesn’t offer electricity plans. It ensures that you have the necessary infrastructure to power your house, but you need to buy the electricity you use from an energy provider like Just Energy.
Is there a way to lower TDU charges from Oncor Energy?
No. The Public Utility Commission of Texas (PUCT) sets and regulates TDU delivery fees. They’re the same for every household in your area.
How are utility companies different from energy providers in Texas?
The difference between a utility company and an energy provider lies in their roles and responsibilities. A utility company is responsible for the transmission and distribution of electricity, and measuring energy consumption in homes or businesses. It owns and manage the infrastructure, including towers, wires, poles, and lines.
A retail electric provider, also known as an energy provider, procures electricity in bulk from energy producers and sells it to customers. When enrolling for electric services, customers choose a REP, who then handles customer service and billing.
How is Just Energy different from Oncor Energy?
Just Energy is a REP, while Oncor Energy is a utility provider. Just Energy sells you the energy you need, and Oncor ensures it has the ability to reach your house.
Who should I contact when there is a power outage?
If your utility company is Oncor Energy, contact them at 888-313-4747 to report a power outage. Once reported, you can check the status of the outage on Oncor’s website.
Find out why over a million customers trust Just Energy!
Sources:
- Oncor Energy. “About Us.” Accessed November 16, 2025. https://www.oncor.com/content/oncorwww/us/en/home/about-us.html
- Oncor Energy. “Service Area Map.” Accessed November 16, 2025. https://www.oncor.com/content/oncorwww/us/en/home/about-us/service-area-map.html