Industry Segments (Tables)

12 Months Ended

Dec. 31, 2014

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



	United States		Canada		Total
Year Ended December 31, 2014
Revenue	$	156,722	$	41,315	$	198,037
Assets ⁽¹⁾	121,424		47,512		168,936
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

(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,
	2014		2013		2012
Acquisition and licensing of seismic data	$	194,037	$	198,109	$	234,785
Reproduction and delivery of seismic data and other services	4,000		4,765		5,673
Total revenue	$	198,037	$	202,874	$	240,458

- 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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