EX-22.1 4 nine-20241231ye10kex221.htm EX-22.1
EXHIBIT 22.1
List of Subsidiary Guarantors and Affiliates Whose Securities Collateralize
Securities of Nine Energy Service, Inc.
Each of the subsidiaries of the Company listed in the table below (each, a “Subsidiary Guarantor”) is a guarantor of the Company’s 13.000% Senior Secured Notes due 2028 (the “Notes”), and the equity interests of each Subsidiary Guarantor have been pledged as collateral for the Notes and the guarantees thereof.

Name |  | State or Other Jurisdiction of Incorporation or Organization
CDK Perforating, LLC |  | Texas
Crest Pumping Technologies, LLC |  | Delaware
Magnum Oil Tools GP, LLC |  | Texas
Magnum Oil Tools International, LTD |  | Texas
MOTI Holdco, LLC |  | Delaware
Nine Downhole Technologies, LLC |  | Delaware
Nine Energy Service, LLC |  | Delaware
RedZone Coil Tubing, LLC |  | Texas