Find your utility
Look on your electric bill, near your account number. Spaces and dashes are fine.
City results fit most homes in each city. Some edges are served by a co-op, so the ESI ID check is the sure way. In the Rio Grande Valley, homes on Magic Valley Electric Co-op or Brownsville PUB lines can’t switch, but AEP Texas homes can. See who sells electricity in McAllen and nearby cities.
A state form lists the first 7 digits for each utility. Nothing you type is saved or sent anywhere.
Where do I find my ESI ID and utility on my bill?
Two places. Both are usually on the first page.
A made-up sample, not a real bill. Layouts differ by company. 1044372 is Oncor’s code, so your first 7 digits may be different.
A long number for your meter. It's often near your account number or service address. The first 7 digits tell you the utility. Your electric company can also look it up from your address.
The charges your utility bills for the poles and wires. Many bills show the utility’s name and outage number next to it.
What are the main electric utilities in Texas?
Five big utilities deliver power in the parts of Texas where you can shop. In city and co-op areas, one company does it all.
The state's list also inculdes Nueces Electric Co-op (1013830) and an old SESCO area that Oncor now serves (1017699). Delivery costs are as of October 4, 2026. See every outage number in our power outage guide.
Why does it matter which utility I have?
Your utility decides three things: who fixes your outages, how much delivery costs, and whether you can shop for a better price.
You can't switch utilities. You can switch electric companies, if you live in an area with choice. Moving soon? See how to set up electricity when you move.
Keep readingCan you shop? How to compare plans without the trapsUtility questions, answered
How do I find out who my electric utility is in Texas?
Look at the first 7 digits of the ESI ID on your bill. 1044372 is Oncor and 1008901 is CenterPoint. 1003278 is AEP Texas Central, 1020404 is AEP Texas North and 1040051 is TNMP. The delivery line on your bill often names your utility too.
What is the difference between my utility and my electric company?
Your utility owns the poles, wires and meter. It brings power to your home and fixes outages. Your electric company sells you the power, sets your price and sends your bill. In Austin, San Antonio and most co-op areas, one company does both jobs.
What is an ESI ID?
An ESI ID is the electric service number for your meter. Every home and business has its own. You’ll find it on your electric bill, often near your account number. Its first 7 digits tell you which utility delivers your power. You need it to start or switch service.
Can I choose my electric utility?
No. Your address decides your utility, and you can’t change it. In areas with choice, you can pick the company that sells you power. But the same utility still delivers it and fixes outages. In city-owned and co-op areas, one company usually does both jobs.
Who is the electric utility for Dallas?
Oncor delivers power to most of Dallas and the Dallas–Fort Worth area. Report outages to Oncor at 1-888-313-4747. You can pick the company that sells you power. Some suburbs are served by a city utility or co-op instead. See our Dallas electricity guide for plans and prices.
Who is the electric utility for Houston?
CenterPoint Energy delivers power to most of the Houston area. Report outages to CenterPoint at 713-207-2222. You pick the company that sells you power, and CenterPoint’s delivery charge is the same with every one. See our Houston electricity guide for plans and prices.
Who is the electric utility for Fort Worth?
Oncor delivers power to most of Fort Worth. But a co-op, Tri-County Electric, serves parts of Fort Worth and nearby towns like Keller and Haslet. Co-op homes can’t switch providers. Check who sends your bill, or see our Fort Worth electricity guide.
Can I shop for electricity in Austin or San Antonio?
No. Austin Energy and CPS Energy are owned by their cities. Each one is the only power company in its city, so you can’t pick a different one. The city sets the rates. See our Austin Energy and CPS Energy guides for what you pay.
Which Texas utilities are outside the open market?
City utilities like Austin Energy and CPS Energy, most co-ops, and a few big utilities, including El Paso Electric, Entergy Texas and Xcel Energy in the Panhandle. Each one is the only option in its area, so Power to Choose doesn’t apply. See our guides to El Paso Electric and Entergy Texas.
What do you want to do next?
Every Texas guide, by topic
Browse every guide on the Texas hub. Or see every state's average price on our price map.
Sources and updates
Sources (9)
- Public Utility Commission of Texas, Critical care application (copy hosted by ERCOT): the first 7 ESI ID digits for each delivery utility.
- Oncor, Outage center: 1-888-313-4747.
- NBC DFW, 2.7 million without power as Beryl hits Texas: CenterPoint’s outage line, 713-207-2222.
- AEP Texas, Report a power outage: 866-223-8508.
- TNMP, Power outages and hazards: 888-866-7456.
- CPS Energy, Outage center: (210) 353-4357.
- Austin Energy, Outages: 512-322-9100.
- Public Utility Commission of Texas, Oncor temporary tariff, Docket 59249: Oncor delivery at 1,000 kWh.
- Gexa Energy, Electricity Facts Label, Gexa Eco Choice 12, TNMP (dated September 17, 2026): TNMP delivery charges.
Changelog · last updated October 16, 2026 · 5 updates
- October 16, 2026: Linked our new Houston, Dallas, Fort Worth and McAllen electric company directories from the finder, the utility table and the next-step cards, with a note on Valley homes served by Magic Valley Electric Co-op or Brownsville PUB. No figures changed. We also pointed an old menu link straight at its current page. We also added our new city guides, four new company reviews and the Smart Meter Texas guide to the guide map.
- October 13, 2026: Moved to theday.company/tx/who-is-my-electric-utility; the old address forwards here. Added a quick decision box, a date alert and a yearly delivery-cost line in the finder and next-step links. Added a sample-bill diagram that shows where the ESI ID and delivery line sit, El Paso Electric and Entergy Texas outage numbers in the finder, a source list under the answer and the updated list of Texas guides. No figures changed.
- October 6, 2026: Added El Paso Electric and Entergy Texas to the utility table, linked the TNMP guide and the new Houston, Dallas and Fort Worth guides, added two questions and rewrote answers in plainer words.
- October 5, 2026 (evening update): Added a “5 things to know” box, an “Up next” link to our Power to Choose guide, and all 10 company reviews in the guide map.
- October 4, 2026: Tool published: ESI ID and city lookup, where to find your ESI ID, the main Texas utilities with outage lines and delivery charges, and why your utility matters.
How to cite this page: The Day Company, "Who's my electric utility in Texas? Find out in 10 seconds", updated October 16, 2026, https://theday.company/tx/who-is-my-electric-utility.
City results cover most addresses; edges of a city can be served by a co-op, so check your ESI ID to be sure. ESI ID prefixes come from the PUCT’s critical care application. The Day Company is not affiliated with any utility named here.