| Name | Jurisdiction | ||||
| CSI Compressco LP | Delaware | ||||
| CSI Compressco Sub Inc. | Delaware | ||||
| CSI Compressco Finance Inc. | Delaware | ||||
| CSI Compression Holdings, LLC | Delaware | ||||
| Rotary Compressor Systems, Inc. | Delaware | ||||
| Compressor Systems de Mexico, S. de RL de CV | Mexico | ||||
| CSI Compressco Operating LLC | Delaware | ||||
| CSI Compressco Holdings LLC | Delaware | ||||
| CSI Compressco Field Services International LLC | Delaware | ||||
| Compressco de Argentina SRL | Argentina | ||||
| CSI Compressco International LLC | Delaware | ||||
| CSI Compressco Leasing LLC | Delaware | ||||
| Compressco Netherlands Cooperatief U.A. | Netherlands | ||||
| Compressco Netherlands B.V. | Netherlands | ||||
| Compressco Canada, Inc. | Canada | ||||
| CSI Compressco Mexico Investment I LLC | Delaware | ||||
| CSI Compressco Mexico Investment II LLC | Delaware | ||||
| Providence Natural Gas, LLC | Oklahoma | ||||
| Production Enhancement Mexico, S. de RL de C.V. | Mexico | ||||
Treating Holdco LLC | Delaware | ||||
Spartan Energy Services LLC | Delaware | ||||
Spartan International LLC | Delaware | ||||
Gas Services Manpower, LLC | Egyptian | ||||
Spartan Terminals Operating, Inc. | Delaware | ||||
Spartan Operating Company LLC | Delaware | ||||