Exhibit 99

Joint Filer Information

Date of Event
Requiring Statement:	May 4, 2018
Issuer Name and Ticker or Trading Symbol:	PermRock Royalty Trust [PRT]
Designated Filer:	Boaz Energy II, LLC
Other Joint Filers:	NGP X US Holdings, L.P.
	NGP Boaz Energy II Co-Invest LLC
Addresses:	The principal business address of Boaz Energy II, LLC is 201 West Wall Street, Suite 421, Midland, Texas 79701.
	The principal business address of each of NGP X US Holdings, L.P. and NGP Boaz Energy II Co-Invest LLC is 5221 O’Connor Blvd., Suite 1100 Irving, Texas 75039.

Signatures:

Dated: May 7, 2018

Boaz Energy II, LLC
By:	/s/ Marshall Eves
Name:	Marshall Eves
Title:	Chief Executive Officer
NGP X US HOLDINGS, L.P.
By:	NGP X Holdings GP, L.L.C., its general partner
By:	/s/ Tony R. Weber
Name:	Tony R. Weber
Title:	Authorized Person
NGP BOAZ ENERGY II CO-INVEST LLC
By:	G.F.W. Energy X, L.P., its managing member
By:	GFW X, L.L.C., its general partner
By:	/s/ Tony R. Weber
Name:	Tony R. Weber
Title:	Authorized Person