DAWSON GEOPHYSICAL CO — Director's Dealing 2012

Aug 9, 2012

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: TGC INDUSTRIES INC (TGE)
CIK: 0000799165
Period of Report: 2012-08-07

Reporting Person: Winn Daniel G (Exec Vice President)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2012-08-07	Common Stock	A	13125	—	Acquired	52867	Direct

Holdings (Derivative)

Security	Exercise Price	Expiration	Underlying	Shares	Ownership
Incentive Stock Option	$2.91	2013-10-23	Common Stock (34729)	34729	Direct

Footnotes

F1: Not applicable - stock award.

F2: Currently exercisable.

F3: Adjusted for the five percent stock dividend paid to all shareholders of record on May 14, 2012.