Oklahoma · Cooperative
East Central Oklahoma Elec Coop Inc
13.59¢ per kWh, bundled, EIA-861 2025. Average bill $155.04 at 1,140.6 kWh a month, across 33,788 customers on that row.
Oklahoma averaged 13.21¢/kWh and $140.52 a month. The United States averaged 17.23¢/kWh and $150.68. State and national figures come from EIA's Average Bill file.
Revenue divided by sales, EIA-861 Sales to Ultimate Customers, 2025, released October 7, 2026. Texas wires utilities come from the Delivery Companies file. The price and bill use bundled service. Customer count: 33,788, the largest residential count across service types.
Estimate a bill
The figure below is this utility's 2025 EIA residential average.
2025 EIA average
$135.90
13.59¢/kWh × 1,000 kWh. Bundled residential average, EIA-861 2025. The customer charge is already folded into this average, so it stands beside a tariff total rather than being added to it.
Annual history
| Year | ¢/kWh | Avg. bill | Avg. kWh | Customers |
|---|---|---|---|---|
| 2015 | 10.68¢ | $122.01 | 1,142.4 | 28,973 |
| 2016 | 11.35¢ | $125.99 | 1,109.9 | 29,364 |
| 2017 | 11.60¢ | $122.24 | 1,053.9 | 29,692 |
| 2018 | 11.23¢ | $134.14 | 1,194.1 | 29,998 |
| 2019 | 11.41¢ | $134.05 | 1,174.4 | 30,333 |
| 2020 | 11.39¢ | $126.35 | 1,109.2 | 30,994 |
| 2021 | 10.63¢ | $120.48 | 1,133.4 | 31,696 |
| 2022 | 10.86¢ | $128.41 | 1,182.2 | 32,388 |
| 2023 | 10.87¢ | $123.56 | 1,136.4 | 32,839 |
| 2024 | 11.99¢ | $136.71 | 1,139.9 | 33,358 |
| 2025 | 13.59¢ | $155.04 | 1,140.6 | 33,788 |
EIA-861, 2015–2025, using the same service type as the 2025 figure. A blank year means that service was not in the file.
Counties
Creek, Lincoln, McIntosh, Muskogee, Okfuskee, Okmulgee, Seminole, Tulsa, Wagoner.
EIA-861 Service Territory, 2025. A listed county is the county EIA recorded. It does not mean every address in the county is served. Open this utility in the bill calculator · Rate history tool