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EXHIBIT 21.1

List of Subsidiaries of Nine Energy Service, Inc.

 

Name						Jurisdiction
CDK Perforating, LLC						Texas
Crest Pumping Technologies, LLC						Delaware
Frac Technology AS						Norway
Magnum Oil Tools GP, LLC						Texas
Magnum Oil Tools International, LTD						Texas
MOTI Holdco, LLC						Delaware
Nine Downhole Norway AS						Norway
Nine Downhole Technologies, LLC						Delaware
Nine Energy Canada Inc.						Alberta, Canada
Nine Energy Service, LLC						Delaware
RedZone Coil Tubing, LLC						Texas