1) 3 Elements Group, SA

2) Air Products and Chemicals, Inc.

3) Alcoa USA Corp.

4) American Association of Professional Landmen

5) Arkansas Electric Cooperatives, Inc.

6) Bayer U.S. LLC

7) BLUEBONNET ELECTRIC COOPERATIVE, INC.

8) Brazos River Authority

9) CDM Smith Inc.

10) Celanese International Corporation

11) Chisholm Trail Disposal, LLC

12) Cielo Wind Power LLC

13) City of Abilene

14) Covestro LLC

15) Cowboy Aggregates, LLC

16) Daikin Comfort Technologies North America

17) DeLa Express LLC

18) Eastman Chemical - Texas Operations

19) EdgeCloudLink, Inc.

20) El Paso and Hudspeth Counties Regional Water Supply Corporation

21) El Paso Water

22) Flint Hills Resources, LLC

23) Foster, Paul

24) Frontier Waste Solutions

25) Georgia-Pacific LLC

26) GEXA Energy

27) Green Group Holdings, LLC

28) Guadalupe-Blanco River Authority

29) Guardian Industries Holdings, LLC

30) Infor(US), LLC

31) INV Nylon Chemicals Americas, LLC

32) Koch Ag & Energy Solutions, LLC

33) Koch Engineered Solutions, LLC

34) Koch Supply & Trading, LP

35) Lone Star Transmission LLC

36) Lubbock Power and Light

37) Moss Lake Projects LLC

38) New Braunfels Utilities

39) NextEra Energy Inc.

40) NextEra Energy Resources LLC

41) North Texas Municipal Water District

42) PCII, LLC

43) Sky Global Partners, LLC

44) SL ENERGY POWER PLANT I, LLC

45) SLR Property I, LP

46) Southern Spirit Transmission, LLC C/O Pattern Energy Group, LP

47) Summit Next Gen, LLC

48) Syngenta Corporation

49) Trellis Company and Subsidiaries

50) Waste Control Specialist, LLC