Midcontinent Independent System Operator, Inc.; AEP Indiana Michigan Transmission Company, Inc.; ALLETE, Inc.; Ameren Illinois Company; Ameren Transmission Company of Illinois; American Transmission Company, LLC; Cleco Power LLC; Duke Energy Indiana, LLC; Entergy Arkansas, LLC; Entergy Louisiana, LLC; Entergy Mississippi, LLC; Entergy New Orleans, LLC; Entergy Texas, Inc.; GridLiance Heartland LLC

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Federal rule or notice · As of Aug 7, 2026

Federal rule or noticeEnergy DepartmentFederal Energy Regulatory CommissionUS Department of Energy

Midcontinent Independent System Operator, Inc.; AEP Indiana Michigan Transmission Company, Inc.; ALLETE, Inc.; Ameren Illinois Company; Ameren Transmission Company of Illinois; American Transmission Company, LLC; Cleco Power LLC; Duke Energy Indiana, LLC; Entergy Arkansas, LLC; Entergy Louisiana, LLC; Entergy Mississippi, LLC; Entergy New Orleans, LLC; Entergy Texas, Inc.; GridLiance Heartland LLC: 4 outgoing connections shown. Point at anyone to see how they are linked.Showing bounded source connections. Dates come from the held records; missing relationships remain unknown.

Federal rule or notice · As of Aug 7, 2026

Federal rule or noticeHeld records

Energy DepartmentAgency · As of Sep 17, 2026

Federal Energy Regulatory CommissionAgency · As of Sep 17, 2026

US Department of EnergyNexus entity

The source record

As of Aug 7, 2026.

Document number: 2026-16167
Document type: Notice
Title: Midcontinent Independent System Operator, Inc.; AEP Indiana Michigan Transmission Company, Inc.; ALLETE, Inc.; Ameren Illinois Company; Ameren Transmission Company of Illinois; American Transmission Company, LLC; Cleco Power LLC; Duke Energy Indiana, LLC; Entergy Arkansas, LLC; Entergy Louisiana, LLC; Entergy Mississippi, LLC; Entergy New Orleans, LLC; Entergy Texas, Inc.; GridLiance Heartland LLC; Indianapolis Power & Light Company; International Transmission Company; ITC Midwest LLC; Michigan Electric Transmission Company, LLC; MidAmerican Energy Company; Montana-Dakota Utilities Company; Northern Indiana Public Service Company LLC; Northern States Power Company, a Minnesota; Corporation; Northern States Power Company, a Wisconsin Corporation; Northwestern Wisconsin Electric Company; Otter Tail Power Company; Pioneer Transmission, LLC; Republic Transmission, LLC; Southern Indiana Gas & Electric Company; Union Electric Company; Wabash Valley Power Association, Inc.; Wolverine Power Supply Cooperative, Inc.; Notice Establishing Answer Period
Publication date: 2026-08-07
Html url: https://www.federalregister.gov/documents/2026/08/07/2026-16167/midcontinent-independent-system-operator-inc-aep-indiana-michigan-transmission-company-inc-allete
Pdf url: https://www.govinfo.gov/content/pkg/FR-2026-08-07/pdf/2026-16167.pdf
Created at: 2026-08-08T05:00:32.535694
Updated at: 2026-08-14T06:57:44.590102

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Connections of Midcontinent Independent System Operator, Inc.; AEP Indiana Michigan Transmission Company, Inc.; ALLETE, Inc.; Ameren Illinois Company; Ameren Transmission Company of Illinois; American Transmission Company, LLC; Cleco Power LLC; Duke Energy Indiana, LLC; Entergy Arkansas, LLC; Entergy Louisiana, LLC; Entergy Mississippi, LLC; Entergy New Orleans, LLC; Entergy Texas, Inc.; GridLiance Heartland LLC

Federal rule or notice	What this connects to	Midcontinent Independent System Operator, Inc.; AEP Indiana Michigan Transmission Company, Inc.; ALLETE, Inc.; Ameren Illinois Company; Ameren Transmission Company of Illinois; American Transmission Company, LLC; Cleco Power LLC; Duke Energy Indiana, LLC; Entergy Arkansas, LLC; Entergy Louisiana, LLC; Entergy Mississippi, LLC; Entergy New Orleans, LLC; Entergy Texas, Inc.; GridLiance Heartland LLC has a recorded connection to Federal rule or notice.	None
Energy Department	What this connects to	Midcontinent Independent System Operator, Inc.; AEP Indiana Michigan Transmission Company, Inc.; ALLETE, Inc.; Ameren Illinois Company; Ameren Transmission Company of Illinois; American Transmission Company, LLC; Cleco Power LLC; Duke Energy Indiana, LLC; Entergy Arkansas, LLC; Entergy Louisiana, LLC; Entergy Mississippi, LLC; Entergy New Orleans, LLC; Entergy Texas, Inc.; GridLiance Heartland LLC has a recorded connection to Energy Department.	None
Federal Energy Regulatory Commission	What this connects to	Midcontinent Independent System Operator, Inc.; AEP Indiana Michigan Transmission Company, Inc.; ALLETE, Inc.; Ameren Illinois Company; Ameren Transmission Company of Illinois; American Transmission Company, LLC; Cleco Power LLC; Duke Energy Indiana, LLC; Entergy Arkansas, LLC; Entergy Louisiana, LLC; Entergy Mississippi, LLC; Entergy New Orleans, LLC; Entergy Texas, Inc.; GridLiance Heartland LLC has a recorded connection to Federal Energy Regulatory Commission.	None
US Department of Energy	What this connects to	Midcontinent Independent System Operator, Inc.; AEP Indiana Michigan Transmission Company, Inc.; ALLETE, Inc.; Ameren Illinois Company; Ameren Transmission Company of Illinois; American Transmission Company, LLC; Cleco Power LLC; Duke Energy Indiana, LLC; Entergy Arkansas, LLC; Entergy Louisiana, LLC; Entergy Mississippi, LLC; Entergy New Orleans, LLC; Entergy Texas, Inc.; GridLiance Heartland LLC has a recorded connection to US Department of Energy.	None