Public Service Co of Oklahoma
Investor Owned electric utility · Oklahoma · #66 of 3,199 U.S. utilities by customers · EIA utility #15474
Public Service Co of Oklahoma is a investor owned electric utility serving 588,941 customers in Oklahoma. In 2025 it sold 19,257 gigawatt-hours of electricity for $1.91B in revenue, an average realized rate of 9.91¢ per kWh across all customer classes and 14.23¢ per kWh for residential customers. Its reported service territory covers 46 counties. EIA records its activities as: generation, transmission, buying transmission, distribution, wholesale marketing.
Customers, sales and rates by customer class (2025)
| Class | Customers | Sales (GWh) | Revenue | Avg realized rate | Share of sales |
|---|---|---|---|---|---|
| Residential | 506,245 | 6,197 | $882.06M | 14.23¢ | |
| Commercial | 76,872 | 7,197 | $658.79M | 9.15¢ | |
| Industrial | 5,824 | 5,863 | $368.03M | 6.28¢ | |
| Total | 588,941 | 19,257 | $1.91B | 9.91¢ |
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 (1,020 kWh/month).
Five-year trend
| Year | Customers | Sales (GWh) | Revenue | Residential rate |
|---|---|---|---|---|
| 2021 | 568,226 | 18,206 | $1.38B | 10.43¢ |
| 2022 | 571,013 | 19,141 | $1.78B | 12.33¢ |
| 2023 | 575,929 | 18,422 | $1.93B | 13.83¢ |
| 2024 | 574,759 | 19,127 | $1.76B | 12.73¢ |
| 2025 | 588,941 | 19,257 | $1.91B | 14.23¢ |
Reliability (2025)
Average outage time (SAIDI): 200 minutes per customer per year
Average outages (SAIFI): 1.48 per customer
Average restoration time (CAIDI): 135 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: 12,094 GWh
Wholesale power purchased: 9,336 GWh
Winter peak demand: 3,109 MW
Energy losses: 5.6% of energy handled
Meters & rooftop solar (2025)
Smart (AMI) meters: 99.9% of 590,094 meters
Customer-sited generation (net metering): 4,775 installations, 41.2 MW of capacity
Counties served
Atoka, OKBeckham, OKBlaine, OKCaddo, OKCherokee, OKChoctaw, OKCoal, OKComanche, OKCotton, OKCraig, OKCreek, OKCuster, OKDelaware, OKDewey, OKGrady, OKGreer, OKHarmon, OKHaskell, OKHughes, OKJackson, OKJefferson, OKJohnston, OKKay, OKKiowa, OKLatimer, OKLe Flore, OKMayes, OKMcClain, OKMcCurtain, OKMcIntosh, OKNowata, OKOkfuskee, OKOkmulgee, OKOsage, OKOttawa, OKPittsburg, OKPontotoc, OKPushmataha, OKRoger Mills, OKRogers, OKStephens, OKTillman, OKTulsa, OKWagoner, OKWashington, OKWashita, OK
Other large utilities in Oklahoma
- Oklahoma Gas & Electric Co - 909,620 customers, residential 12.43¢
- 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¢
- East Central Oklahoma Elec Coop Inc - 37,718 customers, residential 13.59¢
- 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 #15474 in the EIA frame.