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: HURTT STEPHANIE P (Director)

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	267368	Direct
Common Stock	36610.75	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: Adjusted for 5% stock dividend the Company paid to all holders of record of Common Stock on May 14, 2010.

F2: Currently Exercisable.

F3: Reporting person disclaims beneficial ownership of shares owned by the William C. Hurtt Jr. Family GST Exempt Trust except to the extent of reporting persons pecuniary interest. Reporting person is a Co-Trustee of the Trust.