EX-21.1 3 hlx12312020-ex211.htm LIST OF SUBSIDIARIES

EXHIBIT 21.1

 

Name of Subsidiary			Jurisdiction of Formation
Cal Dive I-Title XI, Inc.			Texas
Deepwater Abandonment Alternatives, Inc.			Texas
Energy Resource Technology (U.K.) Limited			Scotland
ERT Camelot Limited			Scotland
Helix do Brasil Serviços de Petróleo Ltda.			Brazil
Helix Energy Solutions (U.K.) Limited			Scotland
Helix Group Holdings S.à r.l.			Grand Duchy of Luxembourg
Helix Offshore Crewing Services Limited			Scotland
Helix Offshore Crewing Services PTE. Ltd.			Singapore
Helix Offshore Holdings Ltd.			Cayman Islands
Helix Offshore International Holdings S.à r.l.			Grand Duchy of Luxembourg
Helix Offshore International, Inc.			Texas
Helix Offshore Ltd.			Cayman Islands
Helix Offshore Services A.S.			Norway
Helix Offshore Services Limited			Scotland
Helix Oil & Gas (U.K.) Limited			Scotland
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 Robotics Solutions, Inc.			Texas
Helix Robotics Solutions International Corp.			Texas
Helix Robotics Solutions Limited			Scotland
Helix Subsea Construction, Inc.			Delaware
Helix Vessel Finance S.à r.l.			Grand Duchy of Luxembourg
Helix Well Ops Inc.			Texas
Helix Well Ops (U.K.) Limited			Scotland
Independence Hub, LLC (20% owned)			Delaware
Kommandor LLC			Delaware
Offshore Well Services, S. de R.L. de C.V.			Mexico
Subsea Technologies Group Limited (70% owned)			Scotland
Subsea Technologies Limited (70% owned)			Scotland