DAWSON GEOPHYSICAL CO — Director's Dealing 2010

Dec 29, 2010

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: TGC INDUSTRIES INC (TGE)
CIK: 0000799165
Period of Report: 2010-12-27

Reporting Person: HURTT STEPHANIE P (Director)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2010-12-27	Common Stock	S	75288	$3.75	Disposed	36610.75	Indirect

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	254637	Direct

Holdings (Derivative)

Security	Exercise Price	Expiration	Underlying	Shares	Ownership
Nonqualified Stock Option	$8.79	2012-09-18	Common Stock (10466)	10466	Direct
Nonqualified Stock Option	$3.24	2013-10-22	Common Stock (23162)	23162	Direct
Nonqualified Stock Option	$4.07	2014-12-03	Common Stock (18987)	18987	Direct

Footnotes

F1: 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.

F2: Currently exercisable.