Exhibit 99.1

Name of Joint Filer:	Oaktree Capital Management, L.P.
Address of Joint Filer:	c/o Oaktree Capital Management, L.P.
	333 South Grand Avenue, 28th Floor
	Los Angeles, CA 90771
Relationship of Joint Filer to Issuer:	Other. See Remarks.
Issuer Name and Ticker or Trading Symbol:	Vistra Corp. [NYSE: VST]
Date of Earliest Transaction Required to be Reported (Month/Day/Year):	03/18/2020
Designated Filer:	Oaktree Capital Management, L.P.
	Oaktree Capital Management, L.P.
Signature:	/s/ Jordan Mikes
	Name: Jordan Mikes
	Title: Senior Vice President
Date:	September 21, 2020

1

Name of Joint Filer:	Oaktree Holdings, Inc.
Address of Joint Filer:	c/o Oaktree Capital Management, L.P.
	333 South Grand Avenue, 28th Floor
	Los Angeles, CA 90771
Relationship of Joint Filer to Issuer:	Other. See Remarks.
Issuer Name and Ticker or Trading Symbol:	Vistra Corp. [NYSE: VST]
Date of Earliest Transaction Required to be Reported (Month/Day/Year):	03/18/2020
Designated Filer:	Oaktree Capital Management, L.P.
	Oaktree Holdings, Inc.
Signature:	/s/ Jordan Mikes
	Name: Jordan Mikes
	Title: Senior Vice President
Date:	September 21, 2020

2

Name of Joint Filer:	Oaktree Capital Group, LLC.
Address of Joint Filer:	c/o Oaktree Capital Management, L.P.
	333 South Grand Avenue, 28th Floor
	Los Angeles, CA 90771
Relationship of Joint Filer to Issuer:	Other. See Remarks.
Issuer Name and Ticker or Trading Symbol:	Vistra Corp. [NYSE: VST]
Date of Earliest Transaction Required to be Reported (Month/Day/Year):	03/18/2020
Designated Filer:	Oaktree Capital Management, L.P.
	Oaktree Capital Group, LLC
Signature:	/s/ Jordan Mikes
	Name: Jordan Mikes
	Title: Senior Vice President
Date:	September 21, 2020

3

Name of Joint Filer:	Oaktree Capital Group Holdings GP, LLC
Address of Joint Filer:	c/o Oaktree Capital Management, L.P.
	333 South Grand Avenue, 28th Floor
	Los Angeles, CA 90771
Relationship of Joint Filer to Issuer:	Other. See Remarks.
Issuer Name and Ticker or Trading Symbol:	Vistra Corp. [NYSE: VST]
Date of Earliest Transaction Required to be Reported (Month/Day/Year):	03/18/2020
Designated Filer:	Oaktree Capital Management, L.P.
	Oaktree Capital Group Holdings GP, LLC
Signature:	/s/ Jordan Mikes
	Name: Jordan Mikes
	Title: Senior Vice President
Date:	September 21, 2020

4