EX-21.1 2 a05-15384_1ex21d1.htm EX-21.1

EXHIBIT 21.1

 

TGC INDUSTRIES, INC.

 

AND SUBSIDIARIES AS OF AUGUST 2005

 

Company

 

Jurisdiction

TGC Industries, Inc.

 

Texas

Tidelands Geophysical Co., Inc.

 

Texas

Exploration Surveys, Inc.

 

Delaware