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                                                                   EXHIBIT 21.1


Hanover Compressor Company ("HCC"), list of subsidiaries

1.    Hanover Acquisition Corporation, a Texas corporation and a wholly owned
      subsidiary of HCC.

2.    Hanover Compressor Colombia, Inc., a Delaware corporation and a wholly
      owned subsidiary of HCC.

3.    Hanover Land Company, a Texas corporation and a wholly owned subsidiary
      of HCC.

4.    Hanover Maintech, Inc. (f/k/a Maintech Enterprises, Inc.), a Texas
      corporation and a wholly owned subsidiary of HCC.

5.    Hanover/Smith, Inc., a Delaware corporation and a wholly owned subsidiary
      of HCC.

6.    HCC owns 33% of the issued and outstanding stock or Wartsila Compressions
      Systems GmbH, a German company.

7.    H.C.C Compressor de Venezuela, C.A., a Venezuelan corporation and a
      wholly owned subsidiary of HCC.

8.    Hanover-PGN Compressor, C.A., a Venezuelan corporation and a wholly owned
      subsidiary of H.C.C. Venezuela.

9.    HCC owns 99.992% of the issued and outstanding stock of Contract
      Compression International Argentina, S.A., an Argentinean corporation
      ("CCIA"). HMI owns the remaining 0.008% of CCIA stock.

10.   Hanover Compressor Holding Company NL B.V., a Dutch company ("Hanover
      Holding") and a wholly-owned subsidiary of HCC

11.   Hanover Cayman Limited, a Cayman Islands company ("Hanover Cayman") and a
      wholly-owned subsidiary of HCC

12.   Hanover Holding owns 99.99%$ of the issued and outstanding of Hanover
      Compressor Company Bolivia, Ltd., a Bolivian company ("HCC Bolivia").
      Hanover Cayman owns the remaining 0.01% of HCC Bolivia stock

13.   Hanover Cayman owns 60% of the issued and outstanding stock of
      Hanover/Enron Venezuela, Ltd., and a Cayman Islands company.

14.   HCC owns 99.99% of the membership interests of Hanover Compressor Mexico
      SRL, a Mexican limited liability company ("Hanover Mexico"). Hanover
      Cayman owns the remaining 0.01% of said membership interests.

15.   Hanover Compressor Sucursal Mexico, a Mexican branch and a wholly owned
      subsidiary of HCC.

16.   HCC owns 35% of Hanover/Cosacol Consortium, a Colombian consortium.

17.   HCC owns 51% of Hanover Compressor Colombia Ltd., a Colombian limitada.

18.   HCC owns 99% of the membership interest of 3113442 Nova Scotia Co., a
      Nova Scotia unlimited liability company. HMI owns the remaining 1% of
      said membership interests.

19.   HCC owns 35% of Collicutt's Mechanical Services, Ltd., a Canadian
      corporation.

20.   Astra Resources International, Inc., a Texas corporation and wholly owned
      subsidiary of Hanover Acquisition Corporation.

21.   HCC Acquisition, Inc., a Texas corporation and a wholly owned subsidiary
      of HCC.

22.   Eureka Energy Systems, Inc., a Delaware corporation and wholly owned
      subsidiary of HCC.