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Major Clients
 12 Months Ended
Dec. 31, 2016
Major Clients  
Major Clients

14.         Major Clients

The Company operates in only one business segment, contract seismic data acquisition and processing services.  Sales to these clients, as a percentage of operating revenues that exceeded 10%, were as follows:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Year Ended December 31,

 

Three Months Ended December 31,

 

Year Ended

September 30,

 

 

 

 

2016

 

 

2015

 

 

2014

 

 

2014

 

A

 

 
13%

 

 
21%

 

 
14%

 

 
16%

 

B

 

 

 —

 

 
15%

 

 
10%

 

 
13%

 

C

 

 

 —

 

 

 —

 

 

 —

 

 
12%

 

The Company does not believe that the loss of any client listed above would have a material adverse effect on the Company.