Electricity generation: Gas producers take on coal
March 8, 2010

Allegheny Energy, Inc.
Alliance Coal, LLC
Alpha Natural Resources
AMEREN Corporation
American Electric Power
Arch Coal, Inc.
Arkansas Electric Cooperative Corporation
Basin Electric Power Cooperative
Berwind Natural Resources Corporation
BNSF Railway
Buckeye Industrial Mining Co.
Buckeye Power, Inc.
BUCYRUS
Caterpillar Incorporated
CONSOL Energy Inc.
Consumers Energy
Crounse Corporation
CSX Corporation
Drummond Company, Incorporated
DTE Energy
E.ON U.S.
GE Energy
International Coal Group
Jennmar Corporation
Joy Global Inc.
Luminant
Murray Energy Corporation
Natural Resource Partners L.P.
Norfolk Southern Corporation
Oglethorpe Power Corporation
Peabody Energy Corporation
SEP Corporation
Southern Company
Tenaska, Inc.
Tri-state Generation & Transmission Assn. Inc.
Union Pacific Railroad
Western Fuels Association