Oneta Energy Center

Oneta Energy Center is a 1 GW natural gas power plant in Wagoner County, Oklahoma, operated by Oneta Power LLC. EIA-860M lists 6 generating units here, inside SPP. Its units entered service between 2002 and 2003.

As of 2026-07 (inventory dated 2026-07-31) · EIA-860M Preliminary Monthly Electric Generator Inventory · eia.gov/…/july_generator2026.xlsx · eia.gov/…/eia860m

Nameplate capacity
1,214 MW
1,086.4 MW net summer
Generating units
6
In service
2002–2003
EIA plant ID
55225

Where it is

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County
Wagoner County, Oklahoma
Coordinates
36.0119, -95.6967
Balancing authority
SWPP
Sector
IPP Non-CHP

Units, technology and status

Operator of record
Oneta Power LLC
Primary energy source
Natural gas
Technologies
Natural Gas Fired Combined Cycle
Status
Operating

Every plant Oneta Power LLC reports to EIA →

Oneta Energy Center: FAQ

Where is Oneta Energy Center?
In Wagoner County, Oklahoma (OK). The map on this page is placed at the coordinates EIA files for the plant, which locate the site rather than any individual unit.
How big is Oneta Energy Center?
1 GW of nameplate capacity across 6 units, as of the EIA-860M release for 2026-07.
Who owns Oneta Energy Center?
EIA-860M names Oneta Power LLC as the reporting entity. That is the operator of record on the survey, which is not always the ultimate owner.
Is this the same as Oneta Energy Center LLC?
Probably, but EIA-860M does not say. The survey records a plant name and a reporting entity — Oneta Power LLC here — not the project company that holds the asset. Project companies are commonly registered as an LLC carrying the plant's name, so a search for "Oneta Energy Center LLC" usually means this site. This page shows only what EIA files, and does not assert a corporate structure it cannot see.
Is Oneta Energy Center still running?
EIA-860M files it as "Operating" for 2026-07. Statuses change monthly, and this page follows the monthly release.