Seismic Data Library (Tables)

12 Months Ended

Dec. 31, 2016

Seismic Data Library [Abstract]

Summary of the net book value of the Company’s seismic data library

The following table sets forth a summary of the net book value of the Company’s seismic data library (in thousands):

	As of December 31,
	2016		2015
U.S. Onshore:
Unconventional 3D	$	96,457	$	128,479
Conventional 3D	2,103		2,286
Canada:
Unconventional 3D	16,361		29,606
Conventional 3D	154		107
2D	415		543
U.S. Offshore	168		226
Mexico 2D	264		116
Total	$	115,922	$	161,363