EX-21.1 2 hlx12312016-ex211.htm LIST OF SUBSIDIARIES
EXHIBIT 21.1

Name of Subsidiary | Jurisdiction of Formation
Cal Dive I-Title XI, Inc. | Texas
Canyon Offshore, Inc. | Texas
Canyon Offshore International Corp. | Texas
Canyon Offshore Limited | Scotland
Energy Resource Technology (U.K.) Limited | Scotland
ERT Camelot Limited | Scotland
Helix do Brasil Serviços de Petróleo Ltda | Brazil
Helix Energy Services PTE. Limited | Singapore
Helix Energy Services Pty Ltd | Australia
Helix Energy Solutions (U.K.) Limited | Scotland
Helix HR Services Limited | Scotland
Helix Group Holdings S.à r.l. | Grand Duchy of Luxembourg
Helix Ingleside LLC | Delaware
Helix Offshore Crewing Services PTE. Ltd. | Singapore
Helix Offshore International Holdings S.à r.l. | Grand Duchy of Luxembourg
Helix Offshore International, Inc. | Texas
Helix Offshore International S.à r.l. | Grand Duchy of Luxembourg
Helix Offshore Ltd. | Cayman Islands
Helix Offshore Services A.S. | Norway
Helix Offshore Services S.à r.l. | Grand Duchy of Luxembourg
Helix Property Corp. | Texas
Helix Q5000 Holdings S.à r.l. | Grand Duchy of Luxembourg
Helix Q7000 Vessel Holdings S.à r.l. | Grand Duchy of Luxembourg
Helix RDS Sdn. Bhd. (30%) | Malaysia
Helix Subsea Construction, Inc. | Delaware
Helix Vessel Finance S.à r.l. | Grand Duchy of Luxembourg
Helix Well Ops Inc. | Texas
Helix Well Ops Offshore Services Limited | Scotland
Helix Well Ops S.à r.l. | Grand Duchy of Luxembourg
Helix Well Ops SEA Pty Ltd | Australia
Helix Well Ops (U.K.) Limited | Scotland
Independence Hub, LLC (20%) | Delaware
Kommandor LLC | Delaware
Offshore Well Services, S. de R.L. de C.V. | Mexico
Well Ops SEA Pty Ltd | Australia