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# Control Area within SPP
^ Transmission Owner
* Transmission Using Member
@ Transmission Owning Member

Terms defined in Tariff and Bylaws.

Basin Electric Power Cooperative *
East Texas Electric Cooperative, Inc.  * ^
Lea County Electric Cooperative, Inc. * ^
Northeast Texas Electric Cooperative, Inc.  *
Tex-La Electric Cooperative of Texas, Inc. * ^
Tri-County Electric Cooperative, Inc. * ^
Federal Agencies
Western Area Power Administration - Upper Great Plains Region *
Independent Power Producers
Cielo Wind Services, Inc. *
CPV Renewable Energy Company, LLC *
Dogwood Energy, LLC *
Enel Green Power North America, Inc. *
Entergy Asset Management *
Flat Ridge 2 Wind Energy, LLC *
Independent Transmission Companies
Hunt Transmission Services, LLC *
South Central MCN, LLC *
Transource Energy, LLC *
Transource Missouri, LLC  * ^
American Electric Power
AEP Oklahoma Transmission Company, Inc. * ^
AEP Southwestern Transmission Company, Inc. *
Public Service Company of Oklahoma @ ^
Southwestern Electric Power Company @ ^
OGE Transmission, LLC * ^
Westar Energy, Inc. @ ^
Kansas Gas and Electric Company @ ^
Xcel Energy
Southwestern Public Service Company @ ^
DTE Energy Trading, Inc. *
Duke Energy Transmission Holding Company, LLC *
El Paso Merchant Energy, L.P. *
Luminant Energy Company, LLC *
Noble Americas Gas & Power Corp *
XO Energy SW, LP *
State Agencies
Heartland Consumers Power District *
Missouri Joint Municipal EUC *
Northeast Nebraska Public Power District *
The Central Nebraska Public Power & Irrigation District  *

SPP Contract Participants

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