X0306 4 2015-06-08 0 0000799165 DAWSON GEOPHYSICAL CO DWSN 0001212714 HAGAN CHRISTINA W 508 W. WALL SUITE 800 MIDLAND TX 79701 0 1 0 0 EVP, Chief Accounting Officer Common Stock $0.01 par value 2015-06-08 4 F 0 3300 5.8775 D 114326 D Represents the surrender of shares of Common Stock to satisfy tax withholding obligations in connection with the vesting of restricted stock issued to the Reporting Person under the Amended and Restated Dawson Geophysical Company 2006 Stock and Performance Incentive Plan. Christina W. Hagan 2015-06-10