EXHIBIT 21.1

McDERMOTT INTERNATIONAL, INC.

SIGNIFICANT SUBSIDIARIES OF THE REGISTRANT

YEAR ENDED DECEMBER 31, 2007

NAME OF COMPANY	JURISDICTION OF ORGANIZATION	PERCENTAGE OF OWNERSHIP INTEREST
J. Ray McDermott, S.A.	Panama	100
J. Ray McDermott International, Inc.	Panama	100
J. Ray McDermott Middle East, Inc.	Panama	100
McDermott Caspian Contractors, Inc.	Panama	100
McDermott Panama Holdings, S.A.	Panama	100
McDermott Holdings, Inc.	Delaware	100
McDermott Incorporated	Delaware	100
The Babcock & Wilcox Company	Delaware	100
BWX Technologies, Inc.	Delaware	100
Babcock & Wilcox Power Generation Group, Inc.	Delaware	100

The subsidiaries omitted from the foregoing list, considered in the aggregate as a single subsidiary, do not constitute a significant subsidiary.