DAWSON GEOPHYSICAL CO — Director's Dealing 2009

Jun 19, 2009

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: TGC INDUSTRIES INC (TGE)
CIK: 0000799165
Period of Report: 2009-06-19

Reporting Person: Brata James Kevin (VP; Secy; Treas; CFO)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2009-06-19	Common Stock	S	1575	$4.77	Disposed	10500	Direct

Holdings (Derivative)

Security	Exercise Price	Expiration	Underlying	Shares	Ownership
Incentive Stock Option	$3.20	2013-10-23	Common Stock (31500)	31500	Direct

Footnotes

F1: Adjusted for the 5% stock dividend that Company paid to all holders of record of common stock on May 12, 2009.

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