1) AMERICAN AIRLINES, INC.

2) AMERICAN CHEMISTRY COUNCIL, INC.

3) AMERICAN PROPERTY CASUALTY INSURANCE ASSOCIATION FKA PROPERTY CASUALTY INSURERS

4) AREVIA POWER

5) AURORA OPERATIONS, INC.

6) BRADFORD WHITE CORPORATION

7) BROTHERHOOD OF RAILROAD SIGNALMEN

8) ENERGYSOURCE MINERALS (FKA ENERGY SOURCE MINERALS)

9) EXELON CORPORATION

10) HIGHLAND ELECTRIC FLEETS

11) INTERNATIONAL MOTORS, LLC

12) LENNOX INTERNATIONAL INC.

13) NEWRANGE COPPER NICKEL LLC

14) RIO TINTO SERVICES INC.

15) THE INTERSTATE NATURAL GAS ASSOCIATION OF AMERICA

16) TRANSCANADA PIPELINES USA LTD

17) VENTURE GLOBAL LNG, INC.