County annual report · FIPS 38065
2025 Oliver County, ND Power Outage Report
In 2025, customers in Oliver County, ND went without power for an average of 2.2 hours, a total of 2,714 customer-hours (North Dakota average 3.1 hours). That ranks 24th worst of 52 North Dakota counties and 2344th of 3,000 nationally.
Compared with ND, the US and 2024
Coverage line is EAGLE-I's share of North Dakota customers tracked each year.
Biggest outages in Oliver County, 2025
The 7 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | June 4, 2025 21:15 | June 4, 2025 21:30 | 15m | 371 | 93 |
| 2 | June 21, 2025 02:45 | June 21, 2025 09:00 | 6h 15m | 369 | 1,523 |
| 3 | October 16, 2025 19:15 | October 16, 2025 22:15 | 3h | 366 | 1,038 |
| 4 | June 4, 2025 16:45 | June 4, 2025 18:30 | 1h 45m | 9 | 14 |
| 5 | April 25, 2025 14:15 | April 25, 2025 15:45 | 1h 30m | 8 | 12 |
| 6 | May 1, 2025 19:00 | May 1, 2025 21:15 | 2h 15m | 5 | 11 |
| 7 | June 21, 2025 20:45 | June 22, 2025 01:15 | 4h 30m | 5 | 23 |
Outage episodes by size in 2025: 3 reached 100+ customers, 0 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 Oliver 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 |
|---|---|---|---|---|---|
| Montana-Dakota Utilities Co | 2024 | 2.9 hrs | 1.26 | 2.1 hrs | 1.10 |
| WAPA-- Western Area Power Administration | - | - | - | - | - |
| Roughrider Electric Cooperativ | - | - | - | - | - |
| Mor-Gran-Sou Electric Coop Inc | - | - | - | - | - |
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 North Dakota's customers in 2025; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 1,231 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. Oliver County has data for 2017–2022, 2024–2025.
Cite this report
MassOutage (massoutage.com), Oliver County, ND 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/north-dakota/oliver-county