Industry Segments (Tables)

12 Months Ended

Dec. 31, 2013

Geographic information for the periods presented was as follows (in thousands):



	United States		Canada		Total
Year Ended December 31, 2013
Revenue	$	157,819	$	45,055	$	202,874
Assets ⁽¹⁾	123,555		76,834		200,389
Year Ended December 31, 2012
Revenue	$	159,787	$	80,671	$	240,458
Assets ⁽¹⁾	105,486		79,449		184,935
Year Ended December 31, 2011
Revenue	$	153,416	$	64,592	$	218,008
Assets ⁽¹⁾	66,168		59,565		125,733

(1)Assets include net seismic data library and net property and equipment.

Revenue by type of service for the periods

Revenue by type of service for the periods presented was as follows (in thousands):



	Year Ended December 31,
	2013		2012		2011
Acquisition and licensing of seismic data	$	198,109	$	234,785	$	213,656
Reproduction and delivery of seismic data and other services	4,765		5,673		4,352
Total revenue	$	202,874	$	240,458	$	218,008

- Definition

Tabular disclosure of the profit or loss and total assets for each reportable segment. An entity discloses certain information on each reportable segment if the amounts (a) are included in the measure of segment profit or loss reviewed by the chief operating decision maker or (b) are otherwise regularly provided to the chief operating decision maker, even if not included in that measure of segment profit or loss.

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