ABOUT DYNEGY

DYNEGY AND VISTRA TRANSACTION

DYNEGY AND VISTRA TO MERGE TO CREATE THE LEADING INTEGRATED POWER COMPANY

On October 30, 2017, Dynegy announced plans to merge with Vistra Energy (NYSE: VST), the parent company of TXU Energy and Luminant, to create the leading integrated retail and generation platform in the U.S.

For more on the Dynegy and Vistra transaction, please see the news release and Dynegy and Vistra Combined Company Fact Sheet.

*This transaction is subject to stockholder and other customary approvals. For important disclosures, please refer to the detailed news release issued regarding the proposed transaction.