Press Release Source: TGC Industries, Inc.

Plano-based TGC Industries Agrees to Purchase Seven New Vibrator Vehicles

PLANO — TGC Industries, Inc. today announced that it has entered into purchase agreements to acquire seven new vibrator vehicles for delivery in the first quarter of 2008. Currently, TGC has 48 vibrator vehicles and 11 shot-hole drill rigs operating as energy sources.

Wayne Whitener, President and CEO of TGC Industries, stated, "Due to the ongoing strong demand for our 3-D land seismic surveys, we continue to invest in new equipment to maintain productive and efficient crews to meet our customers' needs. We remain committed to expanding and upgrading our equipment in order to provide outstanding service to our growing customer base."

TGC Industries, Inc., based in Plano, with branch offices in Houston, Oklahoma City and Denver, is one of the leading providers of seismic data acquisition services throughout the continental United States.

Source: TGC Industries

CONTACTS: Wayne Whitener
Chief Executive Officer
TGC Industries
(972) 881-1099

Jack Lascar, Partner
Karen Roan, SVP
DRG&E (713) 529-6600

Source: TGC Industries, Inc.

This press release includes “forward-looking statements” within the meaning of Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as amended. These forward looking statements are based on our current expectations and projections about future events. All statements other than statements of historical fact included in this press release regarding the Company are forward looking statements. There can be no assurance that those expectations and projections will prove to be correct.

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