Cooperative · Oklahoma · EIA 5598
East Central Oklahoma Elec Coop Inc
Cooperative · Oklahoma · 37K customers. According to the U.S. Energy Information Administration's EIA Form 861, reliability for 2023 shows SAIDI 364 minutes/customer.
Reliability verdict
East Central Oklahoma Elec Coop Inc shows near-benchmark chronic reliability in 2023: 157 minutes SAIDI excluding major events (364 minutes including them) across 37K customers.
- 364 min
- SAIDI 2023
- 2.06
- SAIFI 2023
- 157 min
- SAIDI ex-MED
- 37K
- Customers
Chronic reliability judged on SAIDI excluding major event days when reported (IEEE 1366). Source: EIA Form 861 · August 2026.
Signature read: long interruption minutes vs the 911 utility cohort (>258 min tercile cut).
What long-outage East Central Oklahoma Elec Coop Inc filings show
East Central Oklahoma Elec Coop Inc is a member-owned electric cooperative operating in Oklahoma under EIA identifier 5598. It reports service to approximately 36,997 customer accounts and generated about $0.07 billion in annual electric revenue, with a service footprint spanning 44 ZIP codes. As a cooperative, its governance is accountable to its ratepayer-members rather than shareholders, which often shapes rate-setting and reinvestment priorities.
In 2023, the average East Central Oklahoma Elec Coop Inc customer experienced 364.4 minutes of power interruptions, a measure known as SAIDI, or System Average Interruption Duration Index. Excluding major weather events from that total, that lands within the usual 120–180 minute national benchmark band, roughly on par with typical U.S. distribution-utility performance. Over the same period, SAIFI (outage events per customer) was 2.06, putting the typical customer at roughly 2 distinct interruptions that year. Excluding major event days (hurricanes, ice storms), SAIDI drops to 157.1 minutes, the gap between that figure and the headline 364.4 reveals how much weather, not day-to-day infrastructure, drove outages.
The EIA dataset includes 4 years of continuous reporting (2020–2023) for East Central Oklahoma Elec Coop Inc, which lets you see whether reliability is trending up or down rather than judging from a single snapshot. Over that span, SAIDI rose from 324.1 to 364.4 minutes, possibly reflecting tougher weather years or grid upgrades that have not caught up yet.
Based on this utility's own EIA Form 861 reliability record -- baseline (major-event- excluded) outage duration, total outage duration, and outage frequency -- each benchmarked against every reporting utility nationwide. Not a measure of electricity rates or customer service, which this portal does not track.
364 minutes per customer per year
Annual minutes without electric service (2023)
SAIDI by year (2020-2023)
Minutes per customer-year · EIA Form 861
Year-by-year SAIDI for East Central Oklahoma Elec Coop Inc from the same EIA filings as the table below. Lower is better; major-event years can spike the headline figure.
East Central Oklahoma Elec Coop Inc SAIDI trend
East Central Oklahoma Elec Coop Inc vs the nationwide SAIDI distribution
Where this utility's headline SAIDI sits among every EIA Form 861 utility with a reported figure
364 Around the middle fewer outage minutes than 25% of 911 utilities
Utilities nationwide, banded by latest reported SAIDI (minutes)
Each bar is a band; taller bars hold more utilities. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.
Source U.S. EIA Form 861 reliability filings · August 2026
Price vs. reliability
Where East Central Oklahoma Elec Coop Inc sits on price vs. reliability
Among the 781 U.S. utilities large enough to report both revenue per customer and a recent outage record, East Central Oklahoma Elec Coop Inc charges more per customer than 8% of them, and is more reliable (lower SAIDI) than 28% of them, placing it in the quadrant where it pays less and is less reliable. Revenue per customer and outage minutes are independent figures: paying more does not guarantee fewer outages.
Revenue per customer: $1,829/year · Latest SAIDI: 364.4 minutes/year.
SAIDI 2023 breakdown: 364.4 minutes
Reliability Trend (2020–2023)
| Year | SAIDI (min) | SAIDI nMED | SAIFI | Customers |
|---|---|---|---|---|
| 2020 | 324.1 | 238.4 | 1.682 | 34,718 |
| 2021 | 197.5 | 197.5 | 1.725 | 35,571 |
| 2022 | 221.2 | 221.2 | 2.106 | 36,632 |
| 2023 | 364.4 | 157.1 | 2.056 | 36,654 |
SAIDI nMED = SAIDI without major event days. Source: EIA Form 861.
Service Area
East Central Oklahoma Elec Coop Inc serves 44 ZIP codes in Oklahoma.
Frequently Asked Questions
How reliable is East Central Oklahoma Elec Coop Inc?
East Central Oklahoma Elec Coop Inc had a SAIDI of 364.4 minutes in 2023 including major weather events, but 157.1 minutes excluding them (the IEEE-standard day-to-day reliability measure, the difference points to a major storm that year rather than an ongoing problem). Excluding major weather events, this is near the national average.
What type of utility is East Central Oklahoma Elec Coop Inc?
East Central Oklahoma Elec Coop Inc is classified as a Cooperative serving Oklahoma.
How many customers does East Central Oklahoma Elec Coop Inc serve?
East Central Oklahoma Elec Coop Inc serves approximately 36,997 customers in Oklahoma.
How has East Central Oklahoma Elec Coop Inc's reliability changed over time?
East Central Oklahoma Elec Coop Inc has 4 years of reliability data (2020-2023). SAIDI has held roughly steady across these years. Review the trend table above for year-by-year detail.
Utility Profile
- Type
- Cooperative
- State
- Oklahoma
- Customers
- 36,997
- Annual Revenue
- $0.07B
- EIA ID
- 5598
Explore
Utilities with similar EIA profiles
Two cross-state peer sets for East Central Oklahoma Elec Coop Inc. Same-state SAIDI neighbors stay in Read-with below; these neighborhoods are nearest other-state utilities with at least 10,000 reported customers.
Similar customer count
Nearest utilities by Form 861 customers (37K here), outside Oklahoma.
Similar chronic SAIDI
Nearest utilities by latest SAIDI minutes (364.4 here), outside Oklahoma, excluding the customer-peer set.
Source: U.S. Energy Information Administration Form 861 annual electric power industry survey · ZIP service territory: OpenEI. Disclaimer: informational only, not professional advice. See full disclaimer · methodology.