County annual report · FIPS 40069
2019 Johnston County, OK Power Outage Report
In 2019, customers in Johnston County, OK went without power for an average of 4.2 hours, a total of 30K customer-hours (Oklahoma average 5.0 hours). That ranks 46th worst of 77 Oklahoma counties and 1278th of 2,945 nationally.
Compared with OK, the US and 2018
Coverage line is EAGLE-I's share of Oklahoma customers tracked each year.
Biggest outages in Johnston County, 2019
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | February 7, 2019 13:45 | February 8, 2019 03:30 | 13h 45m | 1,200 | 8,838 |
| 2 | February 2, 2019 08:15 | February 2, 2019 11:45 | 3h 30m | 937 | 3,280 |
| 3 | November 21, 2019 16:30 | November 21, 2019 17:30 | 1h | 910 | 721 |
| 4 | May 6, 2019 13:45 | May 6, 2019 15:30 | 1h 45m | 750 | 805 |
| 5 | May 15, 2019 18:45 | May 15, 2019 21:15 | 2h 30m | 750 | 318 |
| 6 | February 23, 2019 15:15 | February 23, 2019 16:30 | 1h 15m | 506 | 630 |
| 7 | August 23, 2019 13:15 | August 23, 2019 16:45 | 3h 30m | 385 | 263 |
| 8 | May 8, 2019 18:00 | May 8, 2019 21:00 | 3h | 362 | 1,064 |
| 9 | May 9, 2019 16:45 | May 9, 2019 17:15 | 30m | 361 | 181 |
| 10 | January 19, 2019 17:15 | January 19, 2019 20:30 | 3h 15m | 360 | 633 |
Outage episodes by size in 2019: 23 reached 100+ customers, 1 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 Johnston County reported on EIA Form 861 for 2019, 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 |
| Southeastern Electric Coop Inc - (OK) | 2018 | 9.6 hrs | 6.00 | 4.0 hrs | 1.90 |
| Oklahoma Gas & Electric Co | - | - | - | - | - |
| People's Electric Cooperative | - | - | - | - | - |
| Red River Valley Rrl Elec Assn | - | - | - | - | - |
About this data
- Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about 90% of Oklahoma's customers in 2019; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 7,045 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. Johnston County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Johnston County, OK annual power outage report, 2019, 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/2019/oklahoma/johnston-county