Form: EFFECT

Notice of Effectiveness

December 28, 2021

UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

Notice of Effectiveness

Effectiveness Date: December 28, 2021 11:00 A.M.
Form: S-1
CIK: 0001693256
Company Name: Select Energy Services, Inc.
File Number: 333-261726