County annual report · FIPS 40143
2025 Tulsa County, OK Power Outage Report
In 2025, customers in Tulsa County, OK went without power for an average of 5.1 hours, a total of 1.6M customer-hours (Oklahoma average 4.9 hours). That ranks 47th worst of 77 Oklahoma counties and 1458th 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 Tulsa 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 | May 18, 2025 06:00 | May 31, 2025 11:00 | 13d 5h | 33,237 | 537K |
| 2 | March 14, 2025 13:30 | March 18, 2025 06:45 | 3d 17h | 19,127 | 168K |
| 3 | July 12, 2025 10:00 | July 13, 2025 07:00 | 21h | 17,241 | 50K |
| 4 | June 17, 2025 12:45 | June 23, 2025 04:45 | 5d 16h | 9,284 | 64K |
| 5 | October 24, 2025 08:15 | October 26, 2025 03:15 | 1d 19h | 8,606 | 4,904 |
| 6 | December 14, 2025 21:45 | December 15, 2025 05:00 | 7h 15m | 7,847 | 12K |
| 7 | September 20, 2025 12:15 | September 25, 2025 03:30 | 4d 15h | 7,086 | 31K |
| 8 | March 18, 2025 11:45 | March 20, 2025 20:30 | 2d 8h | 6,471 | 30K |
| 9 | September 11, 2025 12:45 | September 11, 2025 20:45 | 8h | 5,224 | 2,380 |
| 10 | August 18, 2025 10:30 | August 21, 2025 10:30 | 3d | 4,925 | 5,743 |
Outage episodes by size in 2025: 166 reached 100+ customers, 61 reached 1,000+ customers, 3 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 Tulsa 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 |
| East Central Oklahoma Elec Coop Inc | 2024 | 4.8 hrs | 1.66 | 2.8 hrs | 1.38 |
| Indian Electric Coop, Inc | 2024 | 84 min | 0.59 | 64 min | 0.52 |
| Verdigris Valley Elec Coop Inc | 2013 | 7.1 hrs | 2.35 | 5.0 hrs | 1.98 |
| Oklahoma Gas & Electric Co | - | - | - | - | - |
| City of Skiatook - (OK) | - | - | - | - | - |
| City of Collinsville - (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 ÷ 307,617 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. Tulsa County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Tulsa 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/tulsa-county