<DOCUMENT>
<TYPE>EX-21
<SEQUENCE>6
<FILENAME>h95302ex21.txt
<DESCRIPTION>SUBSIDIARIES OF THE COMPANY
<TEXT>
<PAGE>
                                                                      Exhibit 21

              SUBSIDIARIES OF HORNBECK-LEEVAC MARINE SERVICES, INC.


<Table>
<Caption>
                                                           STATE
                                                            OF
SUBSIDIARY NAME                                        INCORPORATION                NAME DOING BUSINESS AS
<S>                                                      <C>                    <C>

Hornbeck Offshore Services, LLC                          Delaware               Hornbeck Offshore Services, LLC


HORNBECK-LEEVAC Marine Operators, LLC                    Delaware                HORNBECK-LEEVAC Marine
                                                                                     Operators, LLC


LEEVAC Marine, LLC                                       Delaware                     LEEVAC Marine, LLC


Energy Services Puerto Rico, LLC                         Delaware               Energy Services Puerto Rico, LLC
</Table>


</TEXT>
</DOCUMENT>