Ohio · Retail Power Marketer
Interstate Gas Supply, Inc.
10.73¢ per kWh, energy only, EIA-861 2025. Average bill $78.70 at 733.4 kWh a month, across 175,428 customers on that row.
Ohio averaged 16.90¢/kWh and $147.74 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 energy only service. Customer count: 175,428, the largest residential count across service types.
Estimate a bill
The figure below is this utility's 2025 EIA residential average.
2025 EIA average
$107.30
10.73¢/kWh × 1,000 kWh. Energy only 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 | 7.43¢ | $62.69 | 843.6 | 177,246 |
| 2016 | 6.65¢ | $59.51 | 895.1 | 189,896 |
| 2017 | 6.54¢ | $53.66 | 820.2 | 249,633 |
| 2018 | 6.69¢ | $62.68 | 936.8 | 254,352 |
| 2019 | 6.76¢ | $58.51 | 864.9 | 226,334 |
| 2020 | 6.62¢ | $54.46 | 822.3 | 209,518 |
| 2021 | 7.55¢ | $61.38 | 813.0 | 196,531 |
| 2022 | 10.14¢ | $78.72 | 776.1 | 193,588 |
| 2023 | 9.88¢ | $67.86 | 686.9 | 187,296 |
| 2024 | 9.20¢ | $65.83 | 715.3 | 168,756 |
| 2025 | 10.73¢ | $78.70 | 733.4 | 175,428 |
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
EIA's 2025 service-territory file does not list counties for this utility.
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