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Preliminary 2025 facility recordOperating

Tontitown, AR · EIA plant 56328

Harry D Mattison Gas Plant

Harry D Mattison Gas Plant is a oil & gas power facility in Tontitown, AR, with 349 MW of operating capacity.

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Operating capacity349 MW4 operating generators
Proposed capacity0 MW0 proposed generators
UtilitySouthwestern Electric Power CoEIA-reported operator
Balancing authoritySWPPSouthwest Power Pool

Capacity profile

Fuel and technology

Nameplate capacity
Operating
Oil & gas349 MW
ProposedNo proposed capacity reported
Reported technologiesNatural Gas Fired Combustion Turbine

Nearby in AR

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Source quality

Preliminary facility data

This page uses the EIA-860 2025 Early Release. EIA identifies the release as preliminary, so it should not be used for official state or national aggregation. Capacity is nameplate capacity, not real-time output or annual generation.

Read methodologyEIA-860 source