County annual report · FIPS 40039
2015 Custer County, OK Power Outage Report
In 2015, customers in Custer County, OK went without power for an average of 25.6 hours, a total of 393K customer-hours (Oklahoma average 5.1 hours). That ranks 8th worst of 74 Oklahoma counties and 88th of 2,484 nationally.
Compared with OK, the US
Coverage line is EAGLE-I's share of Oklahoma customers tracked each year.
Biggest outages in Custer County, 2015
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | December 27, 2015 12:00 | December 31, 2015 00:15 | 3d 12h | 11,377 | 338K |
| 2 | March 19, 2015 16:45 | March 19, 2015 23:00 | 6h 15m | 3,010 | 6,051 |
| 3 | February 5, 2015 15:30 | February 5, 2015 17:45 | 2h 15m | 2,131 | 1,843 |
| 4 | November 28, 2015 04:00 | December 5, 2015 19:30 | 7d 15h | 1,768 | 32K |
| 5 | December 18, 2015 19:30 | December 18, 2015 20:30 | 1h | 1,648 | 1,240 |
| 6 | April 17, 2015 12:15 | April 17, 2015 15:15 | 3h | 1,640 | 829 |
| 7 | December 13, 2015 07:45 | December 13, 2015 09:30 | 1h 45m | 1,510 | 2,643 |
| 8 | April 1, 2015 02:00 | April 1, 2015 07:30 | 5h 30m | 1,136 | 2,480 |
| 9 | June 15, 2015 03:00 | June 15, 2015 09:30 | 6h 30m | 751 | 2,629 |
| 10 | April 27, 2015 16:00 | April 27, 2015 19:30 | 3h 30m | 262 | 429 |
Outage episodes by size in 2015: 15 reached 100+ customers, 8 reached 1,000+ customers, 1 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 Custer County reported on EIA Form 861 for 2015, 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 | 2015 | 6.7 hrs | 1.58 | 1.9 hrs | 1.17 |
| Cimarron Electric Coop | 2015 | 129.5 hrs | 6.05 | 68 min | 0.87 |
| Oklahoma Gas & Electric Co | - | - | - | - | - |
| CKenergy Electric Cooperative | - | - | - | - | - |
| Northfork 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 Oklahoma's customers in 2015; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 15,341 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. Custer County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Custer County, OK annual power outage report, 2015, 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/2015/oklahoma/custer-county