DAWSON GEOPHYSICAL CO — Director's Dealing 2011

Feb 10, 2011

SEC Form 5 — Annual Statement of Changes in Beneficial Ownership

Issuer: TGC INDUSTRIES INC (TGE)
CIK: 0000799165
Period of Report: 2010-12-31

Reporting Person: BARRETT WILLIAM J (Director)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2010-04-08	Common Stock	G	27100	—	Disposed	1764843	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	161221	Indirect

Holdings (Derivative)

Security	Exercise Price	Expiration	Underlying	Shares	Ownership
Nonqualified Stock Option	$8.38	2012-09-19	Common Stock (10989)	10989	Direct
Nonqualified Stock Option	$3.09	2013-10-23	Common Stock (24320)	24320	Direct
Nonqualified Stock Option	$3.88	2014-12-04	Common Stock (19936)	19936	Direct

Footnotes

F1: Not applicable

F2: Reporting Person disclaims beneficial ownership of shares and warrants owned by spouse.

F3: Adjusted for the Companys 5% stock dividend paid to all holders of record of common stock on May 14, 2010.

F4: Currently exercisable.