Exhibit 21

BRISTOW GROUP INC.

Subsidiaries as of March 31, 2012

Company	Place of Incorporation	Percentage of Stock Owned
LN, Inc.	Delaware		100	%
Atyrau-Bristow Airways Services	Kazakhstan		49	%*
Aviashelf Aviation Co.	Russia		48.5	%*
BL Scotia LP	Scotland		100	%
BL Holdings B.V.	Netherlands		100	%
BL Holdings II C.V.	Netherlands		100	%
BL US Holdings LLC	Delaware		100	%
BGI Aviation Technical Services Ltd.	Nigeria		100	%*
BGI Aviation Technical Services (Overseas) Ltd.	England		100	%*
BriLog Leasing Limited	Cayman Islands		100	%**
Bristow Alaska, Inc.	Alaska		100	%
Bristow Academy Inc.	California		100	%
Bristow Academy (UK) Ltd.	England		100	%*
Bristow Aviation Holdings Limited	England		49	%
Bristow Caribbean Ltd.	Trinidad/Tobago		100	%*
Bristow Cayman Ltd.	Cayman Islands		100	%**
Bristow Helicopter Group Limited	England		100	%**
Bristow Helicopters (Australia Pty.) Ltd	Australia		100	%*
Bristow Helicopters BV	Netherlands		100	%*
Bristow Helicopters Inc.	Delaware		100	%
Bristow Helicopters International Limited	England		100	%*
Bristow Helicopters Leasing Limited	England		60	%*
Bristow Helicopters Limited	England		100	%*
Bristow Helicopters (Nigeria) Limited	Nigeria		40	%*
Bristow International Panama, Inc.	Panama		100	%
Bristow Management Services Pty Limited	Australia		100	%*
Bristow Norway AS	Norway		100	%*
Bristow Panama Inc.	Panama		100	%
Bristow Southeast Asia Limited	England		100	%*
Bristow Staff Pension Scheme Trustees Limited	England		100	%*
Bristow Technical Services, Ltd	England		100	%*
Bristow (U.K.) LLP	England		100	%
Bristow US L.L.C.	Louisiana		100	%
Bristow Worldwide LP	England		*	**
British International Aviation (Guernsey) Limited	Guernsey		100	%*
Caledonian Helicopters Ltd	England		100	%*
FB Heliservices Limited	England		50	%*
FB Leasing Limited	England		50	%*
FBS Limited	England		50	%*
Helideck Certification Agency Limited	Scotland		50	%*
Kingsmill Insurance Company Limited	Guernsey		100	%*
Lider Taxi Aereo S.A.	Brazil		42.5	%
Pan African Airlines Nigeria Ltd.	Nigeria		50	%
Petroleum Air Services	Egypt		25	%
Rotorwing Leasing Resources, LLC.	Louisiana		100	%
Sakhalin Bristow Air Services Limited	England		60	%*
Severn Aviation Ltd.	England		100	%*
Turkmenistan Helicopters Limited	Turkmenistan		51	%*
United Helicopters Limited	England		100	%*

* Percentage owned by Bristow Helicopter Group Limited or its subsidiaries

** Percentage owned by Bristow Worldwide LP

*** Bristow Worldwide LP is a partnership between Bristow (UK) LLP and Bristow Aviation Holdings Limited. Under the Partnership Agreement 95.88% of the profits and losses of Brilog Leasing Limited and Bristow Cayman Ltd. and 5% of the profits and losses of Bristow Helicopter Group Ltd. and its subsidiaries are allocated to Bristow (UK) LLP. The remaining 4.12% of the profits and losses of Brilog Leasing Limited and Bristow Cayman Ltd. and 95% of the profits and losses of Bristow Helicopter Group Ltd. and its subsidiaries are allocated to Bristow Aviation Holdings Limited