DAWSON GEOPHYSICAL CO — Director's Dealing 2011

Feb 11, 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: WHITENER WAYNE A (Director, President and CEO)

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	71118	Direct

Holdings (Derivative)

Security	Exercise Price	Expiration	Underlying	Shares	Ownership
Incentive Stock Option	$3.06	2013-10-24	Common Stock (55125)	55125	Direct

Footnotes

F1: Adjusted for 5% stock dividend the Company paid to all holders of record of Common Stock on May 14, 2010.

F2: Stock option vests annually one-third from the date of grant (10-24-2008).