Oklahoma power outages by utility

17 Oklahoma utilities report outage minutes to EIA. The state median is 116 minutes a year; the range runs from 39 to 331.

Ranking by outage minutes

Oklahoma, SAIDI without major event days, 2024; lower is better; 17 utilities.

Rank	Oklahoma utility	Owner type	Oklahoma home accounts	SAIDI min	Interruptions (SAIFI)	SAIDI with storms	Oklahoma storm share	Price ¢/kWh
1	Cimarron Electric Coop	Cooperative	15,258	39	0.50	80	51%	11.87
2	Stillwater Utilities Authority	Municipal	19,640	58	0.70	145	60%	13.25
3	Indian Electric Coop, Inc	Cooperative	14,839	64	0.52	84	23%	12.57
4	Oklahoma Electric Coop Inc	Cooperative	58,544	71	1.11	89	21%	12.25
5	City of Edmond	Municipal	39,532	82	1.27	107	23%	11.22
6	City of Ponca City	Municipal	13,790	99	1.01	144	31%	11.93
7	City of Claremore	Municipal	11,855	104	1.86	179	42%	13.24
8	Central Rural Electric Cooperative, Inc	Cooperative	19,650	108	1.11	199	45%	11.56
9	Lake Region Electric Coop, Inc	Cooperative	24,788	116	1.08	340	66%	12.02
10	Public Service Co of Oklahoma	Investor Owned	501,093	117	1.30	188	38%	12.73
11	Cookson Hills Elec Coop, Inc	Cooperative	17,551	136	0.81	399	66%	14.18
12	Rural Electric Coop, Inc	Cooperative	9,047	154	1.44	639	76%	11.35
13	East Central Oklahoma Elec Coop Inc	Cooperative	33,358	170	1.38	286	41%	11.99
14	Canadian Valley Elec Coop, Inc	Cooperative	24,605	182	1.19	591	69%	11.90
15	Cotton Electric Coop, Inc	Cooperative	19,696	225	2.27	356	37%	11.86
16	Southeastern Electric Coop Inc	Cooperative	15,583	254	1.00	325	22%	9.09
17	Kiamichi Electric Coop, Inc	Cooperative	18,685	331	2.39	473	30%	12.90

Oklahoma outage minutes by owner type

In Oklahoma, 46% of 1,878,818 home accounts sit with the 17 qualifying utilities out of 30 in the file. Oklahoma customer-weighted SAIDI is 122 minutes against a median of 116, and 11 of 17 Oklahoma utilities exceed the U.S. median of 99. Counting major event days adds a median 41% to SAIDI.

Oklahoma owner type	Oklahoma utilities	Oklahoma home accounts	Oklahoma median SAIDI	Oklahoma weighted SAIDI	Oklahoma median SAIFI	Oklahoma storm share	Oklahoma median price ¢/kWh
Investor Owned	1	501,093	117	117	1.30	38%	12.73
Cooperative	12	271,604	145	144	1.11	43%	11.95
Municipal	4	84,817	91	82	1.14	36%	12.58

By owner type, Municipal utilities have the lowest median SAIDI in Oklahoma (91 minutes, 4 of 17) and Cooperative the highest (145 minutes, 12 of 17).

Oklahoma utilities that stand out

Why it stands out	Oklahoma utility	Oklahoma owner type	Oklahoma accounts	Oklahoma SAIDI min	Oklahoma SAIDI rank	Oklahoma SAIFI	Oklahoma SAIDI with storms	Oklahoma price ¢/kWh	Oklahoma price rank
the most reliable	Cimarron Electric Coop	Cooperative	15,258	39	1 of 17	0.50	80	11.87	6 of 17
the least reliable	Kiamichi Electric Coop, Inc	Cooperative	18,685	331	17 of 17	2.39	473	12.90	14 of 17
the largest	Public Service Co of Oklahoma	Investor Owned	501,093	117	10 of 17	1.30	188	12.73	13 of 17
the most storm-driven	Rural Electric Coop, Inc	Cooperative	9,047	154	12 of 17	1.44	639	11.35	3 of 17
the most improved	Indian Electric Coop, Inc	Cooperative	14,839	64	3 of 17	0.52	84	12.57	12 of 17
the cheapest	Southeastern Electric Coop Inc	Cooperative	15,583	254	16 of 17	1.00	325	9.09	1 of 17
the priciest	Cookson Hills Elec Coop, Inc	Cooperative	17,551	136	11 of 17	0.81	399	14.18	17 of 17

Does a higher price buy fewer outages?

Each dot is one of 17 Oklahoma utilities.

Oklahoma, 2024: first 8 of 17 rows

	Home price, cents per kWh	SAIDI, minutes a year
Cimarron Electric Coop	11.87	39
Stillwater Utilities Authority	13.25	58
Indian Electric Coop, Inc	12.57	64
Oklahoma Electric Coop Inc	12.25	71
City of Edmond	11.22	82
City of Ponca City	11.93	99
City of Claremore	13.24	104
Central Rural Electric Cooperative, Inc	11.56	108

17 rows from EIA-861 survey.

CSV

Oklahoma utilities, change in their own SAIDI

First to last year each utility reported, best change first.

Rank	Oklahoma utility	Oklahoma years	Oklahoma SAIDI first	Oklahoma SAIDI last	Oklahoma change
1	Indian Electric Coop, Inc	2016 to 2025	143	44	-69%
2	Oklahoma Electric Coop Inc	2015 to 2025	139	56	-60%
3	Stillwater Utilities Authority	2023 to 2025	43	22	-49%
4	Lake Region Electric Coop, Inc	2015 to 2025	212	108	-49%
5	Cimarron Electric Coop	2015 to 2025	68	43	-36%
6	Cookson Hills Elec Coop, Inc	2016 to 2025	376	259	-31%
7	Public Service Co of Oklahoma	2015 to 2025	112	98	-12%
8	Southeastern Electric Coop Inc	2016 to 2024	274	254	-7%
9	Central Rural Electric Cooperative, Inc	2015 to 2025	148	138	-7%
10	Canadian Valley Elec Coop, Inc	2018 to 2025	218	226	+4%
11	Rural Electric Coop, Inc	2015 to 2025	201	212	+5%
12	City of Ponca City	2015 to 2025	103	116	+13%
13	Cotton Electric Coop, Inc	2015 to 2025	200	238	+19%
14	East Central Oklahoma Elec Coop Inc	2015 to 2025	222	321	+45%
15	City of Edmond	2015 to 2025	33	82	+151%
16	City of Claremore	2017 to 2025	55	172	+210%
17	Kiamichi Electric Coop, Inc	2015 to 2025	169	588	+249%

Analyst note

The spread stands out in Oklahoma: 8.5 to 1 between the worst and best utility, rank 39 of 40 states. Of 17 Oklahoma utilities with 1,000+ home accounts that report SAIDI, Cimarron Electric Coop is lowest at 39 minutes a year and Kiamichi Electric Coop, Inc highest at 331, a 8.5 to 1 spread. The state median is 116 minutes, +16% against the U.S. median reporter. Over each utility's own record, Indian Electric Coop, Inc improved most (143 to 44 minutes, -69%, 2016 to 2025) and Kiamichi Electric Coop, Inc changed the other way (169 to 588, +249%); 9 of 17 fell. Home price and outage minutes line up at r = -0.25 across 17 Oklahoma utilities: price tells almost nothing here. That is Oklahoma's pattern, not a cause.

Questions on Oklahoma outages

How uneven is reliability across Oklahoma utilities?

8.5 to 1, Kiamichi Electric Coop, Inc against Cimarron Electric Coop; rank 39 of 40 states.

Which Oklahoma utility has the fewest outage minutes?

Cimarron Electric Coop: 39 minutes a year, SAIDI without major events, 2024.

Which Oklahoma utility has the most?

Kiamichi Electric Coop, Inc: 331 minutes a year in 2024.

What is the typical SAIDI in Oklahoma?

The median of 17 reporting utilities is 116 minutes, +16% on the U.S. median reporter.

Do cheaper Oklahoma utilities have more outages?

Across 17 utilities r = -0.25, so the link is weak.

How much of Oklahoma outage time comes from storms?

At Rural Electric Coop, Inc 76% of all-event SAIDI is major event days.

How reliable is the largest Oklahoma utility?

Public Service Co of Oklahoma serves 501,093 home accounts and reports 117 minutes, rank 10 of 17; weighted by customers the state figure is 122.

Do Oklahoma co-ops and investor-owned utilities differ?

3 owner types report in Oklahoma: Cooperative 12 utilities with 271,604 home accounts, Municipal 4 utilities with 84,817 home accounts, Investor Owned 1 utility with 501,093 home accounts.

What share of Oklahoma home accounts do these utilities serve?

46% of 1,878,818 accounts, 17 of 30 utilities; 11 are above the U.S. median of 99 minutes.