massoutage

County annual report · FIPS 40093

2018 Major County, OK Power Outage Report

In 2018, customers in Major County, OK went without power for an average of 5.3 hours, a total of 21K customer-hours (Oklahoma average 2.7 hours). That ranks 22nd worst of 77 Oklahoma counties and 997th of 2,798 nationally.

Summary data CSVJSON
Avg hrs / customer
5.3
3,939 customers
Customer-hours out
21K
Peak customers out
996
Outages ≥1,000 out
0
0 of 10,000+ · 315 total
Longest outage
4d 19h
began June 23, 2018
Rank in state
22nd/77
997th of 2,798 US

Compared with OK, the US and 2017

Major County, OK average hours without power per customer compared with state and national averages, 2018Major County 5.3 hours, Oklahoma average 2.7 hours, US average 5.6 hours, Major County, 2017 0.8 hoursMajor CountyMajor County5.3hOklahoma averageOklahoma average2.7hUS averageUS average5.6hMajor County, 2017Major County, 20170.8h
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Average hours without power per customer in 2018; last bar is this county in 2017.

Month by month

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Major County, OK customer-hours without power by month, 2018Jan 322, Feb 1,989, Mar 46, Apr 4,494, May 1,367, Jun 9,757, Jul 488, Aug 257, Sep 427, Oct 58, Nov 697, Dec 96302.5k5k7.5k10k322Jan1,989Feb46Mar4,494Apr1,367May9,757Jun488Jul257Aug427Sep58Oct697Nov963Dec
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Customer-hours; June was the worst month.

Major County year over year

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Major County, OK: average hours without power per customer by year2015: 1.9h; 2016: 1.7h; 2017: 0.8h; 2018: 5.3h, coverage 89%; 2019: 4.5h, coverage 90%; 2020: 5.4h, coverage 93%; 2021: 5.2h, coverage 93%; 2022: 4.4h, coverage 94%; 2023: 6.1h; 2024: 4.3h; 2025: 5.7h024680%50%100%1.9h20151.7h20160.8h20175.3h20184.5h20195.4h20205.2h20214.4h20226.1h20234.3h20245.7h2025
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Average hours without power per customer. Line: EAGLE-I coverage, share of customers tracked (right axis).

Coverage line is EAGLE-I's share of Oklahoma customers tracked each year.

Biggest outages in Major County, 2018

The 10 outage episodes with the most customers out at once. Times are UTC.

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1June 30, 2018 21:15June 30, 2018 22:301h 15m996466
2June 23, 2018 02:00June 27, 2018 21:454d 19h8129,194
3February 20, 2018 15:30February 20, 2018 21:456h 15m5441,320
4May 2, 2018 23:45May 3, 2018 01:151h 30m469652
5April 17, 2018 22:15April 18, 2018 03:155h4441,903
6April 18, 2018 05:45April 18, 2018 12:006h 15m3141,963
7November 12, 2018 11:15November 12, 2018 21:3010h 15m196598
8December 30, 2018 10:30December 30, 2018 22:0011h 30m160926
9February 17, 2018 08:45February 19, 2018 13:152d 4h158593
10September 2, 2018 22:45September 3, 2018 03:154h 30m145279

Outage episodes by size in 2018: 14 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 Major County reported on EIA Form 861 for 2018, or their most recent earlier filing. Utility-wide figures, not county-specific.

CSVJSON
UtilityEIA yearSAIDISAIFISAIDI excl. major eventsSAIFI excl. major events
Cimarron Electric Coop20182.4 hrs1.1059 min0.67
Oklahoma Gas & Electric Co-----
Alfalfa Electric Coop, Inc-----
Northwestern Electric Coop Inc - (OK)-----
City of Fairview - (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 ÷ 3,939 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. Major County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Major 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/major-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON