Public Service Company of Oklahoma (PSO) (Public Service Co of Oklahoma)

investor-ownedOfficial website →
Last verified (tariff snapshot)
Feb 26, 2026
EIA data year
2024
EIA updated
Mar 4, 2026
Page updated
Feb 26, 2026

Public Service Company of Oklahoma (PSO), operating as Public Service Co of Oklahoma, is an investor-owned electric utility serving customers in Oklahoma. Investor-owned electric. Standard residential: $17/mo base; first 1,350 kWh 8.88¢, over 11.42¢. TOD optional Jun–Oct. Serves Tulsa and Lawton. Rates at psoklahoma.com.

This page brings together tariff-based rate information from our research, federal EIA statistics on sales and generation when available, and the cities and states this provider serves.

Residential rates

Tariff snapshot (Tulsa, OK)

Customer charge
$17.00/mo
Energy charge (example tier)
8.88¢/kWh

Seasonal/tiered rates and riders may apply. Example tier used in our estimates.

psoklahoma.com· verified 2026-02-26

Example bill at 1,000 kWh (derived from tariff snapshot): $105.79/mo

Based on snapshot; excludes local taxes/fees; riders may vary.

For city-specific estimates (including water, sewer, trash), see Tulsa's full breakdown

Our estimates use tariff and official rate data from utility and regulatory sources. See our methodology for how we calculate bill estimates.

EIA Form 861 & 860 data (2024)

Supplemental data from the U.S. Energy Information Administration. Our tariff-based rates above remain primary for bill estimates. EIA data provides context on scale and generation.

Residential statistics

Avg. price (EIA)
12.73¢/kWh
EIA "avg price" reflects the full delivered price over the year (including riders/delivery and seasonal effects), so it can be higher than a single tariff energy tier.
Residential sales
6.3M MWh
Customers
501.1K
Revenue
$800.9M

Generation mix (capacity)

13.8% renewable · 4,650.9 MW total

  • Natural gas3,511 MW
  • Wind641.5 MW
  • Subbituminous coal473 MW
  • Distillate oil25.4 MW

Sources: EIA-861 (sales, revenue, customers), EIA-860 (generation).

States & cities served

Cities in our dataset where this provider offers electric service. Click through to see utility cost estimates for each city.

Oklahoma

Data sources

  • Our research: Tariff documents, PSC/regulatory filings, and official utility rate schedules. Each city page cites sources and last-verified dates.
  • EIA (2024): Form 861 (sales, revenue, customers) and Form 860 (generation capacity by fuel). Supplementary context; our tariff-based rates remain primary for bill estimates.

Methodology · All providers

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