Oncor Electric Delivery Company LLC: Outages & Reliability
As of October 7, 2026 09:00 UTC, about 306 Oncor Electric Delivery Company LLC customers are without power in 6 counties.
Oncor Electric Delivery Company LLC is an investor owned utility serving 99 counties in Texas. Oncor Electric Delivery Company LLC did not report standardized reliability metrics to the EIA (common for smaller or short-form utilities), but its service territory and outage history are tracked below.
Official reliability
US EIAReliability over time
Official EIA SAIDI, hours without power per customer per year (IEEE, incl. major events). Over this period Oncor Electric Delivery Company LLC’s reliability has been improving (lower is better).
Counties served by Oncor Electric Delivery Company LLC (99)
Service territory reported to EIA-861; each links to live outage status and history.
- Anderson County, TX
- Andrews County, TX
- Angelina County, TX
- Archer County, TX
- Bastrop County, TX
- Baylor County, TX
- Bell County, TX
- Borden County, TX
- Bosque County, TX
- Brown County, TX
- Burnet County, TX
- Cherokee County, TX
- Clay County, TX
- Coke County, TX
- Coleman County, TX
- Collin County, TX
- Comanche County, TX
- Concho County, TX
- Cooke County, TX
- Coryell County, TX
- Crane County, TX
- Culberson County, TX
- Dallas County, TX
- Dawson County, TX
- Delta County, TX
- Denton County, TX
- Eastland County, TX
- Ector County, TX
- Ellis County, TX
- Erath County, TX
- Falls County, TX
- Fannin County, TX
- Fisher County, TX
- Freestone County, TX
- Gaines County, TX
- Glasscock County, TX
- Grayson County, TX
- Henderson County, TX
- Hidalgo County, TX
- Hill County, TX
- Hood County, TX
- Hopkins County, TX
- Houston County, TX
- Howard County, TX
- Hunt County, TX
- Irion County, TX
- Jack County, TX
- Johnson County, TX
- Kaufman County, TX
- Kent County, TX
- Lamar County, TX
- Lampasas County, TX
- Leon County, TX
- Limestone County, TX
- Loving County, TX
- Lynn County, TX
- Martin County, TX
- Mason County, TX
- McCulloch County, TX
- McLennan County, TX
- Menard County, TX
- Midland County, TX
- Milam County, TX
- Mills County, TX
- Mitchell County, TX
- Montague County, TX
- Nacogdoches County, TX
- Navarro County, TX
- Nolan County, TX
- Palo Pinto County, TX
- Parker County, TX
- Pecos County, TX
- Reagan County, TX
- Red River County, TX
- Reeves County, TX
- Rockwall County, TX
- Rusk County, TX
- San Saba County, TX
- Scurry County, TX
- Shackelford County, TX
- Smith County, TX
- Somervell County, TX
- Stephens County, TX
- Sterling County, TX
- Tarrant County, TX
- Terry County, TX
- Tom Green County, TX
- Travis County, TX
- Trinity County, TX
- Upton County, TX
- Van Zandt County, TX
- Ward County, TX
- Wichita County, TX
- Wilbarger County, TX
- Williamson County, TX
- Winkler County, TX
- Wise County, TX
- Wood County, TX
- Young County, TX
Oncor Electric Delivery Company LLC: FAQ
- How reliable is Oncor Electric Delivery Company LLC?
- Oncor Electric Delivery Company LLC did not report standardized SAIDI/SAIFI reliability metrics to the EIA. Outage history for the counties it serves is available on their individual pages.
- How many customers does Oncor Electric Delivery Company LLC serve?
- Oncor Electric Delivery Company LLC serves 99 counties across Texas, per its EIA-861 service territory filing.
- Where does Oncor Electric Delivery Company LLC provide power?
- Oncor Electric Delivery Company LLC operates in Texas. The full list of counties served is below, each linked to its live outage status.
Reliability metrics (SAIDI/SAIFI) and service territory from the US EIA Form 861. SAIDI/SAIFI are IEEE-standard, including major event days. Primary state: Texas.
Data from EIA Form 861 (utility reliability) and DOE/ORNL ODIN, every source we read. Live data as of .