Form: S-1/A

General form of registration statement for all companies including face-amount certificate companies

March 21, 2017


Exhibit 21.1

 

Subsidiaries of Select Energy Services, Inc.

 

Entity

 

State of Formation

SES Holdings, LLC

 

Delaware

Select Energy Services, LLC

 

Delaware

Peak Oilfield Services, LLC

 

Texas

Affirm Oilfield Services, LLC

 

Texas