McDermott International, Inc.

Panama

McDermott International Management, S. de RL.

Panama

J. Ray McDermott, S.A.

Panama

Hydro Marine Services, Inc.

Panama

J. Ray McDermott International, Inc.

Panama

McDermott Technology (US), Inc.

Delaware

McDermott Technology, B.V.

The Netherlands

Comet II B.V.

The Netherlands

Lealand Finance Company B.V.

The Netherlands

Chicago Bridge & Iron Company B.V.

The Netherlands

CB&I Oil & Gas Europe B.V.

The Netherlands

CBI Company Two B.V.

The Netherlands

CBI Company B.V.

The Netherlands

CB&I (US) Holdings, Limited

England & Wales

CBI US Holding Company Inc.

Delaware

CBI HoldCo Two Inc.

Delaware

Chicago Bridge & Iron Company

Delaware

CB&I Group Inc.

Louisiana

CB&I Holdco, LLC

Louisiana

CB&I LLC

Texas

J. Ray Holdings, Inc.

Delaware

J. Ray McDermott Holdings, LLC

Delaware

McDermott, Inc.

Delaware

Delaware