County annual report · FIPS 40137
2018 Stephens County, OK Power Outage Report
In 2018, customers in Stephens County, OK went without power for an average of 0.9 hours, a total of 24K customer-hours (Oklahoma average 2.7 hours). That ranks 70th worst of 77 Oklahoma counties and 2329th of 2,798 nationally.
Compared with OK, the US and 2017
Coverage line is EAGLE-I's share of Oklahoma customers tracked each year.
Biggest outages in Stephens County, 2018
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | August 18, 2018 16:45 | August 21, 2018 16:00 | 2d 23h | 937 | 2,303 |
| 2 | July 30, 2018 09:30 | July 31, 2018 05:00 | 19h 30m | 777 | 2,510 |
| 3 | June 8, 2018 03:45 | June 8, 2018 07:15 | 3h 30m | 638 | 227 |
| 4 | July 15, 2018 01:00 | July 15, 2018 04:45 | 3h 45m | 517 | 366 |
| 5 | April 27, 2018 00:00 | April 27, 2018 00:15 | 15m | 507 | 127 |
| 6 | July 2, 2018 15:00 | July 2, 2018 19:15 | 4h 15m | 479 | 144 |
| 7 | March 26, 2018 14:45 | March 26, 2018 16:30 | 1h 45m | 476 | 185 |
| 8 | July 19, 2018 18:45 | July 20, 2018 02:45 | 8h | 468 | 742 |
| 9 | May 20, 2018 04:30 | May 20, 2018 19:00 | 14h 30m | 460 | 1,848 |
| 10 | December 1, 2018 00:30 | December 1, 2018 02:00 | 1h 30m | 433 | 325 |
Outage episodes by size in 2018: 32 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 Stephens County reported on EIA Form 861 for 2018, 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 | 2018 | 2.1 hrs | 1.34 | 1.7 hrs | 1.17 |
| Cotton Electric Coop, Inc | 2018 | 3.6 hrs | 1.91 | 3.3 hrs | 1.84 |
| Rural Electric Coop, Inc - (OK) | 2018 | 6.8 hrs | 3.42 | 3.9 hrs | 2.49 |
| Oklahoma Gas & Electric Co | - | - | - | - | - |
| City of Marlow - (OK) | - | - | - | - | - |
| City of Comanche - (OK) | - | - | - | - | - |
| City of Duncan - (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 89% of Oklahoma's customers in 2018; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 25,647 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. Stephens County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Stephens County, OK annual power outage report, 2018, 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/2018/oklahoma/stephens-county