EX-21 4 a20151231ex21.htm EXHIBIT 21
Exhibit 21
TETRA Technologies, Inc.
List of Subsidiaries or Other Related Entities
December 31, 2015

Name | Jurisdiction
Compressco, Inc. | Delaware
Compressco Testing, L.L.C. | Delaware
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 Compressor Finance Inc. | Delaware
Compressor Systems, Inc. | Delaware
CSI Compression Holdings LLC | Delaware
Rotary Compressor Systems, Inc. | Delaware
Compressor Systems de Mexico, S. de R.L. de C.V. | Mexico
Compressor Systems Australia Pty Ltd | Australia
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. | Alberta
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 Applied Technologies, LLC | Delaware
Epic Diving & Marine Services, LLC | Delaware
Maritech Resources, 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
TETRA Completion Services Holding B.V. | Netherlands
TETRA Completion Services B.V. | Netherlands
T-International Holdings C.V. | Netherlands

TETRA Netherlands, B.V. | Netherlands
TETRA Chemicals Europe AB | Sweden
TETRA Chemicals Europe OY | Finland
TETRA Egypt (LLC) | Egypt
TETRA Equipment (Labuan) Ltd. | Malaysia
TETRA Investments Company U.K. Ltd. | United Kingdom
Optima Solutions Holdings Limited | United Kingdom
Optima Solutions U.K. Limited | United Kingdom
TNBV Oilfield Services Ltd. | British Virgin Islands
Well TETRA for Well Services LLC | Iraq
TETRA Technologies Australia Pty Ltd. | Australia
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
TETRA Technologies Nigeria Limited | Nigeria
TETRA International Employment Ltd. Co. | Cayman Islands
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 Process Services, L.C. | Texas
TSB Offshore, Inc. | Delaware
TETRA Micronutrients, Inc. | Texas