Who owns Pioneer Transmission, LLC

Pioneer Transmission, LLC - Profile

Pioneer Transmission, LLC owns and operates roughly 42.5 miles of 765 kilovolt electric transmission line and associated substation equipment in northern Indiana, running west from the Greentown station near Kokomo toward the Reynolds station north of Lafayette. Its line is one half of a 70 mile extra high voltage corridor built jointly with Northern Indiana Public Service Company, which owns the remaining segment, and the whole corridor was energised in 2018 after construction began in 2013. The link strengthens transfer capability across the MISO region and gives wind generation in western Indiana a path to load centres further east. The company was set up as a transmission joint venture between two utility parents, one of which sold its half to an infrastructure investor in 2024.

The disclosed stakes

One row per position. Where a holder reports the same company in two share classes, both rows are shown rather than summed, because the class is part of a position's identity.

Where each figure comes from

A private stake has no ownership form behind it, so the source is always the holder's own filing or disclosure. Anything modelled says so, with the arithmetic.

• American Electric Power Company, Inc.. Ownership percentage is from the AEPTHCo Joint Ventures summary table in the FY2025 10-K's MD&A (in-service since 2018; net PP&E of $177 million at 31 December 2025, an unallocated project-level figure, not AEP's carrying value). No separate carrying value is disclosed for AEP's stake; see the combined $4,402 million Deferred Charges balance caveat on the Prairie Wind row, which applies equally here. This is the same Pioneer Transmission, LLC in which Duke Energy Corporation held the other 50% interest before selling it in November 2024 (per Duke Energy's FY2025 10-K); AEP's 50% stake is unaffected and continues to be reported at that level in AEP's own FY2025 10-K. source