Exhibit 21.1
Exterran Corporation and Subsidiaries
Company Listing as of December 31, 2017
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| | | | |
| Company | | Ownership | | Incorporation |
| EES Finance Corp. | | Wholly owned | | Delaware |
| EESLP LP LLC | | Wholly owned | | Delaware |
| Enterra B.V. | | Wholly owned | | Netherlands |
| Enterra Compression Investment LLC | | Wholly owned | | Delaware |
| Enterra Global Holdings LLC | | Wholly owned | | Delaware |
| Excel Energy Services Limited | | Wholly owned | | Nigeria |
| EXH Cayman Ltd. | | Wholly owned | | Cayman Islands |
| Exterran (Beijing) Energy Equipment Company Ltd. | | Wholly owned | | China |
| Exterran (Colombia) Ltd. | | Wholly owned | | Colombia |
| Exterran (Singapore) Pte. Ltd. | | Wholly owned | | Singapore |
| Exterran (Thailand) Ltd. | | Wholly owned | | Thailand |
| Exterran Argentina S.r.l. | | Wholly owned | | Argentina |
| Exterran Bahrain S.P.C. | | Wholly owned | | Bahrain |
| Exterran Bolivia S.r.l. | | Wholly owned | | Bolivia |
| Exterran Capital Services B.V. | | Wholly owned | | Netherlands |
| Exterran Capital Services International, C.V. | | Wholly owned | | Netherlands |
| Exterran Cayman GP Holdings LLC | | Wholly owned | | Delaware |
| Exterran Cayman, L.P. | | Wholly owned | | Cayman Islands |
| Exterran Colombia Leasing LLC | | Wholly owned | | Delaware |
| Exterran Corporation | | Parent | | Delaware |
| Exterran Eastern Hemisphere F.Z.E. | | Wholly owned | | UAE Dubai |
| Exterran Eastern Hemisphere Holdings LLC | | Wholly owned | | Delaware |
| Exterran Egypt LLC | | Wholly owned | | Egypt |
| Exterran Egypt Oil & Gas Services LLC | | Wholly owned | | Egypt |
| Exterran Energy de Mexico, S. de R.L. de C.V. | | Wholly owned | | Mexico |
| Exterran Energy F.Z.E | | Wholly owned | | UAE Sharjah |
| Exterran Energy Malaysia SDN. BHD. | | Wholly owned | | Malaysia |
| Exterran Energy Middle-East LLC | | Wholly owned | | Oman |
| Exterran Energy Solutions Compania Limitada | | Wholly owned | | Chile |
| Exterran Energy Solutions India Private Limited | | Wholly owned | | India |
| Exterran Energy Solutions, L.P. | | Wholly owned | | Delaware |
| Exterran General Holdings LLC | | Wholly owned | | Delaware |
| Exterran Gulf FZE | | Wholly owned | | UAE Sharjah |
| Exterran Holding Company NL B.V. | | Wholly owned | | Netherlands |
| Exterran International Holdings C.V. | | Wholly owned | | Netherlands |
| Exterran International Holdings GP LLC | | Wholly owned | | Delaware |
| Exterran International Holdings LLC | | Wholly owned | | Delaware |
| Exterran International SA | | Wholly owned | | Switzerland |
| Exterran Italy Holdings B.V. | | Wholly owned | | Netherlands |
| Exterran Italy S.r.l. | | Wholly owned | | Italy |
| Exterran Kazakhstan LLP | | Wholly owned | | Kazakhstan |
| Exterran Middle East LLC | | 70% owned | | Oman |
| Exterran Nigeria Limited | | Wholly owned | | Nigeria |
| Exterran Offshore Pte. Ltd. | | Wholly owned | | Singapore |
| Exterran Oman Holdings LLC | | Wholly owned | | Delaware |
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| Exterran Pakistan (Private) Limited | | Wholly owned | | Pakistan |
| Exterran Peru S.R.L. | | Wholly owned | | Peru |
| Exterran Services (UK) Ltd. | | Wholly owned | | United Kingdom |
| Exterran Services B.V. | | Wholly owned | | Netherlands |
| Exterran Servicos de Oleo e Gas Ltda. | | Wholly owned | | Brazil |
| Exterran Trinidad LLC | | Wholly owned | | Delaware |
| Exterran Venezuela, S.R.L. | | Wholly owned | | Venezuela |
| Exterran Water Solutions ULC | | Wholly owned | | Alberta, Canada |
| ExterranEnergy Solutions Ecuador Cia. Ltda. | | Wholly owned | | Ecuador |
| Gas Conditioning of Mexico, S. de R.L. de C.V. | | Wholly owned | | Mexico |
| H.C.C. Compressor de Venezuela, C.A. | | Wholly owned | | Venezuela |
| Hanover Asia LLC | | Wholly owned | | Delaware |
| Hanover Cayman Limited | | Wholly owned | | Cayman Islands |
| LLC Exterran Vostok | | Wholly owned | | Russia |
| Production Operators Cayman Inc. | | Wholly owned | | Cayman Islands |
| PT. Exterran Indonesia | | Wholly owned | | Indonesia |
| Quimex Sarl | | Wholly owned | | Switzerland |
| Quimex Tunisia Sarl | | Wholly owned | | Tunisia |
| UCI GP LLC | | Wholly owned | | Delaware |
| UCO Compression Holding, L.L.C. | | Wholly owned | | Delaware |
| Universal Compression International Holdings, S.L.U. | | Wholly owned | | Spain |
| Universal Compression International Ltd. | | Wholly owned | | Cayman Islands |
| Universal Compression International, L.P. | | Wholly owned | | Delaware |
| Universal Compression of Colombia Ltd. | | Wholly owned | | Cayman Islands |
| Universal Compression Services, LLC | | Wholly owned | | Delaware |
| Uniwhale Ltd. | | 75% owned | | Cayman Islands |
