East Central Oklahoma Elec Coop Inc
Cooperative electric utility · Oklahoma · #443 of 3,199 U.S. utilities by customers · EIA utility #5598
East Central Oklahoma Elec Coop Inc is a cooperative electric utility serving 37,718 customers in Oklahoma. In 2025 it sold 627 gigawatt-hours of electricity for $82.65M in revenue, an average realized rate of 13.19¢ per kWh across all customer classes and 13.59¢ per kWh for residential customers. Its reported service territory covers 9 counties. EIA records its activities as: distribution.
Customers, sales and rates by customer class (2025)
| Class | Customers | Sales (GWh) | Revenue | Avg realized rate | Share of sales |
|---|---|---|---|---|---|
| Residential | 33,788 | 462 | $62.86M | 13.59¢ | |
| Commercial | 3,930 | 164 | $19.79M | 12.04¢ | |
| Total | 37,718 | 627 | $82.65M | 13.19¢ |
Average realized rate = revenue divided by sales as reported on EIA Form 861. It blends fixed charges, demand charges and riders into one per-kWh figure; it is not the utility's tariff rate. Estimated residential bill assumes the average residential customer's actual 2025 usage (1,141 kWh/month).
Five-year trend
| Year | Customers | Sales (GWh) | Revenue | Residential rate |
|---|---|---|---|---|
| 2021 | 35,962 | 605 | $61.87M | 10.63¢ |
| 2022 | 36,632 | 666 | $69.03M | 10.86¢ |
| 2023 | 36,997 | 657 | $67.68M | 10.87¢ |
| 2024 | 37,439 | 660 | $74.39M | 11.99¢ |
| 2025 | 37,718 | 627 | $82.65M | 13.59¢ |
Reliability (2025)
Average outage time (SAIDI): 419 minutes per customer per year
Average outages (SAIFI): 2.97 per customer
Average restoration time (CAIDI): 141 minutes
As reported for Oklahoma under the IEEE standard, with major event days included where the standard reports them. Lower is better; see the reliability rankings.
Energy supply (2025)
Net generation: — GWh
Wholesale power purchased: 668 GWh
Winter peak demand: 183 MW
Energy losses: 6.2% of energy handled
Meters & rooftop solar (2025)
Smart (AMI) meters: 100.0% of 37,312 meters
Customer-sited generation (net metering): 246 installations, 2.4 MW of capacity
Counties served
Creek, OKLincoln, OKMcIntosh, OKMuskogee, OKOkfuskee, OKOkmulgee, OKSeminole, OKTulsa, OKWagoner, OK
Other large utilities in Oklahoma
- Oklahoma Gas & Electric Co - 909,620 customers, residential 12.43¢
- Public Service Co of Oklahoma - 588,941 customers, residential 14.23¢
- Oklahoma Electric Coop Inc - 65,196 customers, residential 12.87¢
- City of Edmond - (OK) - 44,881 customers, residential 10.73¢
- Northeast Oklahoma Electric Co - 42,301 customers, residential 13.79¢
- Verdigris Valley Elec Coop Inc - 39,439 customers, residential 12.40¢
- Tri-County Electric Coop, Inc (OK) - 31,996 customers, residential 15.95¢
- CKenergy Electric Cooperative - 27,723 customers, residential 13.84¢
All Oklahoma utilities and rates
Source: U.S. Energy Information Administration, Form EIA-861 2025 (filed by the utility; figures as published). Utility #5598 in the EIA frame.