County annual report · FIPS 40039
2025 Custer County, OK Power Outage Report
In 2025, customers in Custer County, OK went without power for an average of 3.6 hours, a total of 56K customer-hours (Oklahoma average 4.9 hours). That ranks 59th worst of 77 Oklahoma counties and 1868th of 3,000 nationally.
Compared with OK, the US and 2024
Coverage line is EAGLE-I's share of Oklahoma customers tracked each year.
Biggest outages in Custer County, 2025
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | December 6, 2025 01:15 | December 6, 2025 02:30 | 1h 15m | 2,196 | 580 |
| 2 | August 13, 2025 18:00 | August 13, 2025 18:45 | 45m | 2,146 | 539 |
| 3 | June 7, 2025 04:15 | June 7, 2025 10:00 | 5h 45m | 2,110 | 6,125 |
| 4 | March 19, 2025 08:45 | March 20, 2025 02:00 | 17h 15m | 2,089 | 4,550 |
| 5 | March 14, 2025 15:45 | March 16, 2025 04:30 | 1d 12h | 1,711 | 7,563 |
| 6 | February 10, 2025 21:30 | February 10, 2025 21:45 | 15m | 986 | 247 |
| 7 | January 15, 2025 01:45 | January 15, 2025 03:30 | 1h 45m | 936 | 1,403 |
| 8 | April 22, 2025 00:00 | April 22, 2025 02:30 | 2h 30m | 817 | 1,299 |
| 9 | September 21, 2025 02:45 | September 21, 2025 18:00 | 15h 15m | 641 | 1,604 |
| 10 | June 3, 2025 01:00 | June 3, 2025 10:15 | 9h 15m | 599 | 1,832 |
Outage episodes by size in 2025: 58 reached 100+ customers, 5 reached 1,000+ customers, 0 reached 10,000+ customers.
Utility reliability filed with the EIA
SAIDI (average outage time per customer) and SAIFI (average interruptions per customer) that utilities serving Custer County reported on EIA Form 861 for 2025, or their most recent earlier filing. Utility-wide figures, not county-specific.
| Utility | EIA year | SAIDI | SAIFI | SAIDI excl. major events | SAIFI excl. major events |
|---|---|---|---|---|---|
| Public Service Co of Oklahoma | 2024 | 3.1 hrs | 1.55 | 1.9 hrs | 1.30 |
| Cimarron Electric Coop | 2024 | 80 min | 0.89 | 39 min | 0.50 |
| Northfork Electric Coop, Inc | 2018 | 3.7 hrs | - | 2.7 hrs | - |
| Oklahoma Gas & Electric Co | - | - | - | - | - |
| CKenergy Electric Cooperative | - | - | - | - | - |
About this data
- Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about n/a of Oklahoma's customers in 2025; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 15,341 customers (ORNL modeled county customer count), including major storm days. It is comparable across counties but is not the SAIDI a utility files.
- An outage event is a continuous stretch with customers out; counts at 100, 1,000 and 10,000+ use its peak.
- Years loaded: 2015–2025. Custer County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Custer County, OK annual power outage report, 2025, data as of Oct 3, 2026 02:41 UTC, sources: DOE EAGLE-I (https://eagle-i.doe.gov/); EAGLE-I modeled customer counts (MCC) (https://figshare.com/); EIA Form 861 (utility reliability) (https://www.eia.gov/electricity/data/eia861/). https://massoutage.com/reports/2025/oklahoma/custer-county