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Major Clients
 12 Months Ended
Dec. 31, 2015
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, 2015

 

Three Months Ended
December 31, 2014

 

Year Ended
September 30, 2014

 

Year Ended
September 30, 2013

 

A

 

 
21 

%

 
14 

%

 
16 

%

 
19 

%

B

 

 
15 

%

 
10 

%

 
13 

%

 
17 

%

C

 

 

—

 

 

—

 

 
12 

%

 

—

 

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