County annual report · FIPS 40059
2025 Harper County, OK Power Outage Report
In 2025, customers in Harper County, OK went without power for an average of 8.6 hours, a total of 18K customer-hours (Oklahoma average 4.9 hours). That ranks 25th worst of 77 Oklahoma counties and 936th 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 Harper 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 | June 1, 2025 03:30 | June 1, 2025 05:15 | 1h 45m | 1,111 | 1,768 |
| 2 | August 11, 2025 17:30 | August 11, 2025 19:15 | 1h 45m | 1,072 | 1,718 |
| 3 | December 30, 2025 18:15 | December 30, 2025 19:45 | 1h 30m | 396 | 107 |
| 4 | March 1, 2025 16:15 | March 2, 2025 00:45 | 8h 30m | 358 | 155 |
| 5 | August 18, 2025 00:15 | August 18, 2025 01:45 | 1h 30m | 351 | 380 |
| 6 | December 21, 2025 19:45 | December 21, 2025 20:15 | 30m | 279 | 140 |
| 7 | December 2, 2025 19:45 | December 2, 2025 20:15 | 30m | 273 | 137 |
| 8 | November 4, 2025 15:45 | November 4, 2025 17:15 | 1h 30m | 272 | 408 |
| 9 | February 28, 2025 16:00 | February 28, 2025 22:15 | 6h 15m | 262 | 1,623 |
| 10 | February 24, 2025 07:15 | February 24, 2025 11:30 | 4h 15m | 236 | 192 |
Outage episodes by size in 2025: 24 reached 100+ customers, 2 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 Harper 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 |
|---|---|---|---|---|---|
| Oklahoma Gas & Electric Co | - | - | - | - | - |
| Northwestern Electric Coop Inc - (OK) | - | - | - | - | - |
| Town of Laverne - (OK) | - | - | - | - | - |
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 ÷ 2,061 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. Harper County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Harper 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/). https://massoutage.com/reports/2025/oklahoma/harper-county