Public Service Co

NorthWestern Energy

OGE Energy Corporation
* Oklahoma Gas & Electric CompanyOhio Valley Electric Corporation

Oncor

Otter Tail Corporation

* Otter Tail Power CompanyPG&E Corporation

* Pacific Gas & ElectricPinnacle West Capital Corp
* Arizona Public Service Company

Portland General Electric

PPL Corporation
* PPL Electric Utilities
* LG&E and KU Energy
* Rhode Island Energy

Public Service Enterprise Group
* Public Service Electric