Exhibit 21.1
Subsidiaries of Hornbeck Offshore Services, Inc.
| Subsidiary Name |
State or Country of Incorporation | |
| Hornbeck Offshore Services, LLC |
Delaware | |
| Hornbeck Offshore Operators, LLC |
Delaware | |
| Hornbeck Offshore Services de Mexico, S. de R.L. de C.V. |
Mexico | |
| HOS de Mexico II, S. de R.L. de C.V. |
Mexico | |
| Hornbeck Offshore Navegação Ltda |
Brazil |