EXHIBIT 99.1

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

   
4.

Robert V. Delaney, Jr.

c/o Crestview Advisors, L.L.C.

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  
     
  ROBERT V. DELANEY, JR.  
       
  By: /s/ Poojitha Manta, Attorney-in-Fact  

 

Date: April 9, 2026