Exhibit 21 (1)

Subsidiaries
of
Layne Christensen Company

		Percentage of
		Voting Stock
	Jurisdiction	owned by
Name of Subsidiary	of Incorporation	Company¨
Ausdrill Burkina SARL	Burkina		100	%
Boyles Bros. Drilling Company	Utah		100	%
Camken-Reynolds, LLC	Delaware		51	%
Cherryvale Pipeline, LLC	Kansas		100	%
Christensen Boyles Corporation	Delaware		100	%
Collector Wells International, Inc.	Ohio		100	%
Discretionary Trust	Zimbabwe		100	%
ESEMES (Mauritius) Limited	Mauritius		100	%
G&K Properties Pty Ltd	Australia		100	%
Inliner American, Inc.	Delaware		100	%
Inliner Technologies, LLC	Indiana		100	%
International Directional Services, L.L.C.	Delaware		100	%
International Directional Services of Canada, Ltd.	Ontario, Canada		100	%
International Mining Services Pty Ltd	Western Australia		100	%
International Water Consultants, Inc.	Ohio		100	%
Inversiones Layne Energy Limitada (a/k/a Layne Energy Limitada)	Chile		100	%
Layne Christensen Australia Pty Limited	Australia		100	%
Layne Christensen Canada Limited	Calgary, Alberta, Canada		100	%
Layne de Bolivia S.R.L.	Bolivia		100	%
Layne de Mexico, S.A. de C.V.	Hermosillo, Sonora, Mexico		100	%
Layne do Brasil Sondagens Ltda	Brazil		100	%
Layne Drilling Pty Ltd (f/k/a Glindemann & Kitching Pty Ltd)	Australia		100	%
Layne Drilling (RDC) SPRL	Democratic Republic of Congo		100	%
Layne Energia Chile S.A.	Chile		85	%
Layne Energy, Inc.	Delaware		100	%
Layne Energy Cherryvale, LLC	Delaware		100	%
Layne Energy Cherryvale Pipeline, LLC	Delaware		100	%
Layne Energy Dawson, LLC	Delaware		100	%
Layne Energy Dawson Pipeline, LLC	Delaware		100	%
Layne Energy Holding, LLC	Delaware		100	%
Layne Energy Operating, LLC	Delaware		100	%
Layne Energy Osage, LLC	Delaware		100	%
Layne Energy Pipeline, LLC	Delaware		100	%
Layne Energy Production, LLC	Delaware		100	%
Layne Energy Resources, Inc.	Delaware		100	%
Layne Energy Sycamore, LLC	Delaware		100	%

¨ directly or indirectly through its subsidiaries, nominees or trustees

Page 2

		Percentage of
		Voting Stock
	Jurisdiction	owned by
Name of Subsidiary	of Incorporation	Company¨
Layne Energy Sycamore Pipeline, LLC	Delaware		100	%
Layne Texas, Incorporated	Delaware		100	%
Layne Water Development and Storage, LLC	Delaware		100	%
Lenity Investments (Private) Limited	Zimbabwe		100	%
Liner Products, LLC	Indiana		100	%
Mag Con, Inc.	Louisiana		100	%
Meadors Construction Co., Inc.	Florida		100	%
Mid-Continent Drilling Company	Delaware		100	%
PT Layne Christensen Indonesia	Indonesia		100	%
Reynolds, Inc. (f/k/a Layne Merger Sub 2, Inc.).	Indiana		100	%
Reynolds Inliner, LLC	Indiana		100	%
Reynolds Transport Co.	Indiana		100	%
Reynolds-Rogers, LLC	Delaware		51	%
Reynolds-SABAS, LLC	Delaware		66.66	%
Shawnee Oil & Gas, L.L.C.	Delaware		100	%
SMS Holdings Pty Ltd	Australia		100	%
SMS Offshore Pty Ltd	Western Australia		100	%
Stamm-Scheele Incorporated	Louisiana		100	%
Stanley Mining Services Pty Limited	Australia		100	%
Stanley Mining Services (Botswana) (Pty) Ltd. (f/k/a Whitfield (Proprietary) Limited)	Botswana		100	%
Stanley Mining Services (Tanzania) Limited	Tanzania		100	%
Stanley Mining Services (Uganda) Limited	Uganda		100	%
Stanley Mining Services Zimbabwe (Private) Limited	Zimbabwe		100	%
Tecniwell S.r.l.	Italy		100	%
Vibration Technology, Inc.	Delaware		100	%
West African Drilling Services (Burkina) SARL	Burkina		100	%
West African Drilling Services (Guinea) SARL	Guinea		100	%
West African Drilling Services (MALI) SARL	Mali		100	%
West African Drilling Services Pty Ltd	Australia		100	%
West African Drilling Services (No. 2) Pty Ltd	Australia		100	%
West African Holdings Pty Ltd	Australia		100	%
Windsor Resources, LLC	Delaware		100	%
Windsor Resources Pipeline, LLC	Delaware		100	%

¨ directly or indirectly through its subsidiaries, nominees or trustees