X0206 3 2017-05-08 0 0001692819 Vistra Energy Corp VST 0001703161 Titan Co-Investment-MCG, L.P. BROOKFIELD PLACE 250 VESEY ST NEW YORK NY 10281-1023 true true Director by Deputization Common Stock, par value $0.01 per share 244213 D Common Stock, par value $0.01 per share 25366 I See Footnote Represents interest in Common Stock held by Longhorn Capital GS L.P. *** Cyrus Madon, a Senior Managing Partner of Brookfield Asset Management Inc., serves on the board of directors of the Issuer as a representative of affiliates of Brookfield Asset Management Private Institutional Capital Adviser (Canada), L.P., including the Reporting Person. The Reporting Person is a "director by deputization" solely for purposes of Section 16 of the Securities Exchange Act of 1934, as amended. TITAN CO-INVESTMENT-MCG, L.P. By: Titan Co-Investment GP, LLC, its general partner /s/ Kristen Haase 2017-05-08