FORM OF VOTING AGREEMENTVoting Agreement • March 21st, 2011 • TGC Industries Inc • Oil & gas field exploration services • Texas
Contract Type FiledMarch 21st, 2011 Company Industry JurisdictionTHIS VOTING AGREEMENT (this “Agreement”), dated as of March 20, 2011, is by and between Dawson Geophysical Company, a Texas corporation (“Parent”), and (the “Voting Shareholder”).