Exhibit 21.1
Hanover Compressor Company
List of Subsidiaries
1. Aurora Barbados, SRL, a West Indies, Barbados corporation
2. Belleli Energy, SrL, an Italian corporation and owned 20% by Hanover
3. Burnett & Lewis Ltd. (Inactive), a United Kingdom corporation
4. Collicutt Hanover Services, Ltd., a Canadian corporation and owned 24.1% by
Hanover Compression Limited Partnership
5. Collicutt-Hanover Compression Co., a Nova Scotia unlimited liability
company
6. Contract Compression International Argentina, S.A. , an Argentine
corporation
7. Cosacol Ltda (Colombia Limitada), a Colombia Limitada and owned 59% by
Hanover
8. DR Argentina SA, an Argentine corporation
9. DR Compression Services S.A., a Swiss corporation
10. E I Venezuela Development Ltd., a Cayman Islands company
11. Energy Transfer Hanover Ventures, LP, a Delaware Limited Partnership, owned
98% by Hanover
12. Gulf Coast Dismantling, Inc., a Texas corporation
13. Hallmark Production Systems, Inc., a Texas corporation
14. Hampton Roads Shipping Investors II LLC, a Delaware limited liability
company and owned 25% by Hanover
15. Hanover Asia, Inc., a Delaware corporation
16. Hanover Canada, Inc. (Inactive), a Canadian NRO
17. Hanover Australia LLC, a Delaware limited liability company
18. Hanover Cayman Limited, a Cayman Islands company
19. Hanover Compressed Natural Gas Services, LLC, a Delaware limited liability
company
20. Hanover Compression Limited Partnership, a Delaware limited partnership,
and in certain states doing business as:
Hanover Compression General Holdings
HCL Holdings
Hanover General Holdings
Hanover Compressor Limited Holdings
Hanover Maintech
Hanover/Smith
Hanover Acquisition
Hanover Land
Eureka Energy
Hanover Applied Process Solutions
T. H. Russell
Hanover Russell
CDI Holdings
Compressor Dynamics
Production Operators
Hanover OEC Compression
Ouachita Energy
Hanover Energy Services
RX Oil & Gas
Prime Compression Services
Unit Partners
Victoria Compression Services
Contract Engineering & Operating
Southern Maintenance Services
Transmission Systems
TTV
Prop
HES
Hanover South Texas Production
Hanover - Power Machinery
HC
21. Hanover Compressor Capital Trust, a Delaware business trust
22. Hanover Compressor Colombia Ltd. (Inactive), a Colombian limitada and owned
51% by Hanover
23. Hanover Compressor Colombia, Inc., a Delaware corporation
24. Hanover Compressor Company Bolivia, Ltd.
25. Hanover Compressor Holding Company NL BV
26. Hanover Compressor Mexico SRL (Inactive), a Mexican limited liability
company
27. Hanover Compressor Peru SAC, a Peruvian corporation
28. Hanover Compressor Surcursal Mexico, a Mexican branch
29. Hanover do Brazil, Ltda., a Brazilian limitada
30. Hanover/Enron Venezuela, Ltd., a Venezuelan branch of a Cayman Islands
corporation
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31. Hanover Ecuador L.L.C., a Delaware limited liability company
32. Hanover General Energy Transfer, LLC, a Delaware limited liability company
33. Hanover IDR, Inc., a Delaware corporation
34. Hanover Limited Energy Transfer LLC, a Delaware limited liability company
35. Hanover Malaysia SDN BHD, a Malaysian company and owned 60% by Hanover
36. Hanover Maloney Inc. f/k/a Maloney Industries Inc., an Alberta Canada
corporation
37. Hanover Measurement, LLC, a Delaware limited liability company
38. Hanover Measurement Services Company, LP, a Delaware limited partnership
39. Hanover SPE, L.L.C., a Delaware limited liability company
40. Hanover Trade Corp., a West Indies Barbados corporation
41. Hanover Trinidad LLC, a Delaware limited liability company
42. Hanover/Cosacol Consortium, a Colombian consortium
43. Hanover/Enron Venezuela, Ltd., a Venezuelan branch of a Cayman Islands
company
44. HC Cayman LLC, a Delaware limited liability company
45. HC Leasing, Inc., a Delaware corporation
46. HCC Holdings, Inc., a Delaware corporation
47. H.C.C. Compressor de Venezuela. C.A., a Venezuelan corporation
48. HCL Colombia, Inc., a Delaware corporation
49. Houston Flow Measurement, Inc., a Texas corporation
50. KOG, Inc., a Texas corporation
51. Maloney Industries (France) S.A., a French corporation
52. Maloney Industries International Ltd., an Alberta Canada corporation
53. Maloney Industries Limited, a United Kingdom holding company
54. Maloney Industries (UK) Ltd., a United Kingdom corporation
55. Mid Continent Measuring, Inc., an Oklahoma corporation
56. PT Hanover Indonesia, an Indonesian company
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57. POI Operating Company S. de R.L., a Mexican limited liability company
58. POI Mexico Service Company S. de R.L., a Mexican limited liability company
59. Power Machinery, Inc (fka PWRMI Acquisition, Inc), a Delaware corporation
60. Production Operators Argentina S.A., an Argentine corporation
61. Production Operators Venezuela C.A., a Venezuelan corporation
62. Production Operators Cayman, Inc., a Cayman Islands corporation
63. Production Operators Cayman (El Furrial) Ltd., a Cayman Islands limited
liability company
64. Proyecto Gas Natural PGN, C.A, a Venezuelan corporation
65. Servi Compressores, C.A, a Venezuelan corporation and owned 50% Hanover
66. Servicios Tipsa, S.A., an Argentine corporation
67. Southwest Industries Inc., a Delaware corporation
68. Sunterra Energy Corporation, an Oklahoma corporation
69. Talleres Petroleros de Colombia Ltda., a Colombian limitada
70. Tubefabs Ltd. (inactive), a United Kingdom corporation
71. Wells-Hall Manufacturing Ltd., an Alberta Canada corporation
72. WilPro Energy Services (PIGAP II) Limited, a Cayman Islands limited
liability company
73. WilPro Energy Services (Guara) Limited, a Cayman Islands limited liability
company
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