Investment in Affiliates (Tables)

9 Months Ended

Oct. 31, 2013

Summary of Affiliates and Percentages Owned

	Percentage Owned Directly			Percentage Owned Indirectly
Boyles Bros Servicios Tecnicos Geologicos S. A. (Panama)		50.00	%
Boytec, S.A. (Panama)					50.00	%
Boytec Sondajes de Mexico, S.A. de C.V. (Mexico)					50.00
Sondajes Colombia, S.A. (Columbia)					50.00
Mining Drilling Fluids (Panama)					25.00
Plantel Industrial S.A. (Chile)					50.00
Christensen Chile, S.A. (Chile)		50.00
Christensen Commercial, S.A. (Chile)		50.00
Geotec Boyles Bros ., S.A. (Chile)		50.00
Centro Internacional de Formacion S.A. (Chile)					50.00
Geoestrella S.A. (Chile)					25.00
Diamantina Christensen Trading (Panama)		42.69
Christensen Commercial, S.A. (Peru)		35.38
Geotec, S.A. (Peru)		35.38
Boyles Bros ., Diamantina, S.A. (Peru)		29.49

Summary of Financial Information of Affiliates

Summarized financial information of the affiliates was as follows:

	Three Months					Nine Months
	Ended October 31,					Ended October 31,
(in thousands)	2013			2012		2013			2012
Income statement data:
Revenues	$	42,270		$	102,020	$	176,217		$	361,918
Gross profit		2,085			23,049		18,388			88,422
Operating (loss) income		(3,904	)		13,879		(3,269	)		54,116
Net (loss) income		(4,653	)		10,826		(7,825	)		41,640