Exhibit 21
TETRA Technologies, Inc.
List of Subsidiaries or Other Related Entities
December 31, 2020
Name | Jurisdiction | ||||
Compressco, Inc. | Delaware | ||||
Compressco Testing, L.L.C. | Oklahoma | ||||
Compressco Field Services, LLC | Oklahoma | ||||
CSI Compressco GP Inc. | Delaware | ||||
CSI Compressco Investment LLC | Delaware | ||||
CSI Compressco LP | Delaware | ||||
CSI Compressco Sub Inc. | Delaware | ||||
CSI Compressco Finance Inc. | Delaware | ||||
CSI Compression Holdings, LLC | Delaware | ||||
Compressor Systems de Mexico, S. de R.L. de C.V. | Mexico | ||||
Rotary Compressor Systems, Inc. | Delaware | ||||
CSI Compressco Operating LLC | Delaware | ||||
CSI Compressco Field Services International LLC | Delaware | ||||
Compressco de Argentina SRL | Argentina | ||||
CSI Compressco International LLC | Delaware | ||||
CSI Compressco Holdings 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 R.L. de C.V. | Mexico | ||||
TETRA Applied Holding Company | Delaware | ||||
TETRA Production Testing Holding LLC | Delaware | ||||
T-Production Testing, LLC | Texas | ||||
TETRA Production Testing Services, LLC | Delaware | ||||
TETRA Financial Services, Inc. | Delaware | ||||
TETRA-Hamilton Frac Water Services, LLC | Oklahoma | ||||
TETRA International Incorporated | Delaware | ||||
TETRA Middle East for Oil & Gas Services LLC | Saudi Arabia | ||||
TETRA de Argentina SRL | Argentina | ||||
TETRA de Mexico, S.A. de C.V. | Mexico | ||||
TETRA Foreign Investments, LLC | Delaware | ||||
TETRA International Holdings, B.V. | Netherlands | ||||
T-International Holdings C.V. | Netherlands | ||||
TETRA Netherlands, B.V. | Netherlands | ||||
TETRA Oilfield Services Ghana Limited | Ghana | ||||
TETRA Chemicals Europe AB | Sweden | ||||
TETRA Chemicals Europe OY | Finland | ||||
TETRA Egypt (LLC) | Egypt | ||||
TETRA Equipment (Labuan) Ltd. | Malaysia |
TNBV Oilfield Services Ltd. | British Virgin Islands | ||||
Well TETRA for Well Services LLC | Iraq | ||||
TETRA Investments Company U.K. Limited | United Kingdom | ||||
Optima Solutions Holdings Limited | United Kingdom | ||||
Optima Solutions U.K. Limited | United Kingdom | ||||
TETRA Technologies de Mexico, S.A. de C.V. | Mexico | ||||
TETRA Technologies de Venezuela, S.A. | Venezuela | ||||
TETRA Technologies do Brasil, Limitada | Brazil | ||||
TETRA Technologies U.K. Limited | United Kingdom | ||||
Optima Solutions Malaysia SDN BDH | Malaysia | ||||
TETRA Technologies Nigeria Limited | Nigeria | ||||
Tetra-Medit Oil Services | Libya | ||||
TETRA Madeira, Unipessoal Lda | Portugal | ||||
TETRA (Thailand) Limited | Thailand | ||||
TETRA Yemen for Oilfield Services Co., Ltd. | Yemen | ||||
Greywolf Energy Services Ltd. | Canada | ||||
TETRA International Holdings Inc. | Delaware | ||||
TETRA UK Holdings Limited | United Kingdom | ||||
TETRA Process Services, L.C. | Texas | ||||
TETRA Micronutrients, Inc. | Texas |