Industry Segments

12 Months Ended

Dec. 31, 2011

Industry Segments [Abstract]

Industry Segments

NOTE M-INDUSTRY SEGMENTS

The Company operates in one business segment, which is made up of seismic data acquisition, seismic data licensing, seismic data processing and seismic reproduction service.

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

					Other
	United				Foreign
	States		Canada		Countries		Total
Year ended December 31, 2011
Revenue	$	152,792	$	65,216	$	—	$	218,008
Assets (1)		65,156		60,577		—		125,733
Year ended December 31, 2010
Revenue	$	129,888	$	45,668	$	—	$	175,556
Assets (1)		76,121		35,429		—		111,550
Year ended December 31, 2009
Revenue	$	78,792	$	36,529	$	24	$	115,345
Assets (1)		150,874		56,518		—		207,392

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

The Company's revenues may be divided into two major categories, (i) acquisition and licensing of seismic data and (ii) reproduction and delivery of seismic data and other services. Revenue by type of service for the periods presented is as follows (in thousands):

	Year Ended December 31,
	2011		2010		2009
Acquisition and licensing of seismic data	$	213,656	$	171,778	$	110,821
Reproduction and delivery of seismic data and other services		4,352		3,778		4,524
	$	218,008	$	175,556	$	115,345