Form: 4/A

Statement of changes in beneficial ownership of securities

April 10, 2026

Documents

EXHIBIT 99

Joint Filer Information

Each of the following joint filers has designated Crestview Partners II GP, L.P. as the “Designated Filer” for purposes of the attached Form 4:

1.

Crestview Partners II SES Investment B, LLC

c/o Crestview Partners

590 Madison Avenue, 42nd floor

New York, NY 10022

   
2.

Crestview Partners II SES Investment, LLC

c/o Crestview Partners

590 Madison Avenue, 42nd floor

New York, NY 10022

   
3.

Crestview Advisors, L.L.C.

c/o Crestview Partners

590 Madison Avenue, 42nd floor

New York, NY 10022

   

 

Date of Event Requiring Statement: April 8, 2026

Issuer Name and Ticker or Trading Symbol: Select Water Solutions, Inc. [WTTR]

  CRESTVIEW PARTNERS II SES INVESTMENT B, LLC  
       
  By: /s/ Poojitha Manta  
    Name: Poojitha Manta  
    Title: Chief Compliance Officer  
     
  CRESTVIEW PARTNERS II SES INVESTMENT, LLC  
       
  By: /s/ Poojitha Manta  
    Name: Poojitha Manta  
    Title: Chief Compliance Officer  
     
  CRESTVIEW ADVISORS, L.L.C.  
       
  By: /s/ Poojitha Manta  
    Name: Poojitha Manta  
    Title: Chief Compliance Officer  
     

 

Date: April 10, 2026