North Dakota Plaintiffs

Industrial Commission of North Dakota

Lignite Energy Council

Basin Electric Power Cooperative

North American Coal Corp.

Great Northern Properties Limited Partnership

Missouri Basin Municipal Power Agency

Minnkota Power Cooperative

North Dakota Friends of the Court

American Coalition for Clean Coal Electricity

American Fuel & Petrochemical Manufacturers

American Public Power Association

Chamber of Commerce of the United States

Minnesota Chamber of Commerce

Missouri Joint Municipal Electric Utility Commission

Montana Coal Council

Mountain States Legal Foundation

National Association of Manufacturers

National Mining Association

National Rural Electric Cooperative Association

Minnesota Defendants

Minnesota Public Utilities Commission

Minnesota Friends of the Court

American Wind Energy Association

Environmental Defense Fund

Environmental Law and Policy Center

Fresh Energy

Issac Walton League of America - Midwest Office

Minnesota Center for Environmental Advocacy

Natural Resources Defense Council

Sierra Club

Solar Energy Industries Association