111 K Street, NE, Ninth Floor, Washington, DC, 20002, 
(512)7929620
1220 Colorado Street, Suite 450, Austin, TX, 78701, 
3) Adelanto Healthcare Ventures LLC
4) American Concrete Pipe Association
9) Cargill Meat Solutions Corporation
10) Chesapeake Energy Corporation
12) Combined Arms
16) Hilliary Communications, LLC
17) Hireblazer LLC
18) Intercontinental Exchange, Inc.
19) Invesco Ltd.
22) Luminant Generation Company LLC
23) Media Choice LLC
24) Megatel Homes III Opportunities, LLC
26) Payward, Inc.
27) Provi
29) SDS Petroleum Consultants, L.L.C.
30) Texas City Limits Coalition
31) Touchstone Communities, Inc.
33) TXU Energy Retail Company LLC
35) Vistra Corp.
36) Vistra Corporate Services Company