PLANO, Texas, Oct. 8 /PRNewswire-FirstCall/ -- TGC Industries, Inc. (AMEX: TGE) today announced plans to release 2007 third quarter financial results on Monday, October 22, 2007 before the market opens. In conjunction with the release, TGC Industries has scheduled a conference call, which will be broadcast live over the Internet, for Monday, October 22, 2007 at 9:30 a.m. eastern time. What: TGC Industries Third Quarter Earnings Conference Call When: Monday, October 22, 2007 - 9:30 a.m. eastern / 8:30 a.m. central How: Live via phone by dialing 303-262-2211 and asking for the TGC Industries call at least 10 minutes prior to the start time, or live over the Internet by logging onto the web at the address below Where: http://www.tgcseismic.com/ A telephonic replay of the conference call will be available through October 29, 2007 and may be accessed by calling 303-590-3000 using passcode 11098940. A web cast archive will also be available at http://www.tgcseismic.com/ shortly after the call and will be accessible for approximately 90 days. TGC Industries, Inc., based in Plano, Texas, 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. CONTACTS: Wayne Whitener Chief Executive Officer TGC Industries (972) 881-1099 Jack Lascar, Partner Karen Roan, SVP DRG&E (713) 529-6600 DATASOURCE: TGC Industries, Inc. CONTACT: Wayne Whitener, Chief Executive Officer of TGC Industries, +1- 972-881-1099; or Jack Lascar, Partner, or Karen Roan, SVP, both of DRG&E, +1- 713-529-6600, for TGC Industries Web site: http://www.tgcseismic.com/

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