DAWSON GEOPHYSICAL CO  [  NASDAQ ]  [ DWSN ]


508 WEST WALL
SUITE 800
MIDLAND,  TX,
  USA
4326843000
Filing DateCurrent and former namesChanged on date
2015-02-11
TGC INDUSTRIES INC
1992-07-03
2015-02-11
DAWSON GEOPHYSICAL CO
Central Index Key (CIK)
0000799165
State of Incorporation
TX
Country of Incorporation
USA
Fiscal year end
1231
IRS #
742095844
Std. Industrial Class.
1382 OIL & GAS FIELD EXPLORATION SERVICES

Ownership (Form 3,4,5)# Filings
BARRETT WILLIAM J (0000923415) 50
BEDDOW CAPITAL MANAGEMENT INC (0001278641) 1
Beddow Edward George (0001658658) 1
Brata James Kevin (0001437972) 13
COOPER CRAIG W (0001506912) 12
FARES ISSAM M (0001271862) 2
FLYNN EDWARD L (0001031599) 23
GARDNER HERBERT M (0000923414) 27
HAGAN CHRISTINA W (0001212714) 5
HOOVER GARY M (0001212387) 12
HURTT STEPHANIE P (0001402463) 17
HURTT WILLIAM C JR (0001253409) 22
JUMPER STEPHEN C (0001210224) 7
MCINNES ALLEN T (0001182279) 31
North Ted R (0001442058) 12
TOBIAS C RAY (0001210507) 7
Thomas James W (0001410418) 9
USELTON KENNETH W (0001249461) 6
Vander Ploeg Mark A (0001604461) 13
WEDGE ENERGY SERVICES LLC (0001101563) 2
WHITENER WAYNE A (0001249462) 52
Winn Daniel G (0001302641) 19
All related persons/companies# Filings
AMERICAN EXPRESS FINANCIAL ADVISORS 4
AMERICAN EXPRESS FINANCIAL CORP 4
AMERIPRISE FINANCIAL INC (0000820027) 4
BARRETT WILLIAM J (0000923415) 50
BEDDOW CAPITAL MANAGEMENT INC (0001278641) 3
BRIDGEWATER CAPITAL ADVISORS INC 2
Beddow Edward George (0001658658) 1
BlackRock Inc. (0001364742) 4
Boston Partners (0001386060) 2
Brata James Kevin (0001437972) 13
COOPER CRAIG W (0001506912) 12
DEPRINCE RACE & ZOLLO INC (0001008894) 2
DIMENSIONAL FUND ADVISORS INC 3
DIMENSIONAL FUND ADVISORS LP (0000354204) 3
ELSAS JASON M JR (0001283439) 2
FARES ISSAM M (0001271862) 2
FLYNN EDWARD L (0001031599) 37
GARDNER HERBERT M (0000923414) 27
GRACE & WHITE INC /NY (0000903064) 2
HAGAN CHRISTINA W (0001212714) 5
HOOVER GARY M (0001212387) 12
HURTT STEPHANIE P (0001402463) 17
HURTT WILLIAM C JR (0001253409) 22
Harpswell Capital Management LLC (0001511129) 1
IDS FINANCIAL CORP/MN/ 4
JUMPER STEPHEN C (0001210224) 7
MCINNES ALLEN T (0001182279) 31
New BlackRock, Inc. 4
North Ted R (0001442058) 12
PARADIGM CAPITAL MANAGEMENT INC/NY (0001037792) 4
PUNCH & ASSOCIATES INVESTMENT MANAGEMENT, INC. (0001238990) 2
QUEST ADVISORY CORP/NY 10
RENAISSANCE TECHNOLOGIES CORP 2
RENAISSANCE TECHNOLOGIES LLC (0001037389) 2
RICE HALL JAMES & ASSOCIATES, LLC (0001230765) 2
RICE JAMES HALL & ASSOCIATES LLC (0001230765) 2
ROYCE & ASSOCIATES INC /NY 10
ROYCE & ASSOCIATES LLC (0000906304) 10
Robeco Investment Management, Inc. 2
SPECIAL SITUATIONS FUND III L P (0000914248) 7
STATE TEACHERS RETIREMENT SYSTEM OF OHIO 4
STRS OHIO (0000820478) 4
SYSTEMATIC FINANCIAL MANAGEMENT LP (0001085936) 3
TGC INDUSTRIES INC (0000799165) 811
THOMSON HORSTMANN & BRYANT INC (0001057439) 6
TOBIAS C RAY (0001210507) 7
TODRES SIDNEY (0001283146) 2
Thomas James W (0001410418) 9
USELTON KENNETH W (0001249461) 6
Vander Ploeg Mark A (0001604461) 13
WEDGE ENERGY SERVICES LLC (0001101563) 5
WHITENER WAYNE A (0001249462) 52
Winn Daniel G (0001302641) 19
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