1) Accident & Injury Pain Centers, Inc.

2) Blue Cross Blue Shield of Texas

3) Daikin Comfort Technologies North America

4) Dallas Police & Fire Pension System

5) Fort Bend County

6) Harris County Department of Education

7) Harris County Precinct 4

8) Houston Astros, LLC

9) Houston Firefighters Relief & Retirement Fund

10) Houston Livestock Show and Rodeo, Inc.

11) Houston Municipal Employees Pension System

12) Houston NFL Holdings, L.P., dba Houston Texans

13) Houston Police Officers' Pension System

14) Houston Professional Fire Fighters Association, IAFF - Local 341

15) Ibn Sina Foundation

16) Inception Fertility Corporate Services, LLC.�

17) Port of Corpus Christi Authority

18) Summit Next Gen, LLC

19) Texas Association of Public Employee Retirement Systems

20) Texas State Athletic Trainers Association

21) Utility Associates, Inc.

1) 3 Elements Group, SA

2) Air Products and Chemicals, Inc.

3) Alcoa USA Corp.

4) Arkansas Electric Cooperatives, Inc.

5) Bayer U.S. LLC

6) BLUEBONNET ELECTRIC COOPERATIVE, INC.

7) Brazos River Authority

8) CDM Smith Inc.

9) Celanese International Corporation

10) Chisholm Trail Disposal, LLC

11) Cielo Wind Power LLC

12) Covestro LLC

13) Daikin Comfort Technologies North America

14) Eastman Chemical - Texas Operations

15) El Paso and Hudspeth Counties Regional Water Supply Corporation

16) El Paso Water

17) Flint Hills Resources, LLC

18) Foster, Paul

19) Frontier Waste Solutions

20) Georgia-Pacific LLC

21) GEXA Energy

22) Green Group Holdings, LLC

23) Guadalupe-Blanco River Authority

24) Guardian Industries Holdings, LLC

25) Infor(US), LLC

26) INV Nylon Chemicals Americas, LLC

27) Koch Ag & Energy Solutions, LLC

28) Koch Engineered Solutions, LLC

29) Koch Supply & Trading, LP

30) Lone Star Transmission LLC

31) Lubbock Power and Light

32) New Braunfels Utilities

33) NextEra Energy Inc.

34) NextEra Energy Resources LLC

35) North Texas Municipal Water District

36) PCII, LLC

37) Phillips Infrastructure Corporation

38) Sky Global Partners, LLC

39) SL ENERGY POWER PLANT I, LLC

40) SLR Property I, LP

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

42) Summit Next Gen, LLC

43) TEXSAR, Inc.

44) Trellis Company and Subsidiaries

45) Uranium Energy Corp

46) Waste Control Specialist, LLC