Exhibit 22.1

LIST OF SUBSIDIARY GUARANTORS

Each of the following subsidiaries of  W&T Offshore, Inc. (the “Company”) is a subsidiary guarantor with respect to the 10.75% Senior Second Lien Notes due 2029 (the “2029 Notes”) issued by the Company.

Name

  ​ ​ ​

State of
Organization

Aquasition III LLC

Delaware

Aquasition IV LLC

Delaware

Aquasition V LLC

Delaware

Falcon Aero Holdco LLC

Delaware

Falcon Aero Holdings LLC

Delaware

Green Hell LLC

Delaware

Seaquester LLC

Delaware

Seaquestration LLC

Delaware

W & T Energy VI, LLC

Delaware

W & T Energy VII, LLC

Delaware