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BASIS OF PRESENTATION, REVENUE RECOGNITION AND RECENT ACCOUNTING PRONOUNCEMENTS

6 Months Ended

Jun. 30, 2011

BASIS OF PRESENTATION, REVENUE RECOGNITION AND RECENT ACCOUNTING PRONOUNCEMENTS

BASIS OF PRESENTATION, REVENUE RECOGNITION AND RECENT ACCOUNTING PRONOUNCEMENTS

NOTE A

BASIS OF PRESENTATION

The accompanying financial statements have been prepared in accordance with generally accepted accounting principles in the United States of America for interim financial information and the instructions to Form 10-Q. Accordingly, they do not include all of the financial information and footnotes required by generally accepted accounting principles for complete financial statements. References to “we,” “us,” “our,” “its,” or the “Company” refer to TGC Industries, Inc. and our subsidiaries.

In connection with the preparation of these consolidated financial statements, the Company evaluated subsequent events after the balance sheet date of June 30, 2011, through August 9, 2011, the date these consolidated financial statements were issued.

REVENUE RECOGNITION

Seismic Surveys

The Company provides seismic data acquisition survey services to its customers under general service agreements which define certain obligations for the Company and for its customers. A supplemental agreement setting forth the terms of a specific project, which may be cancelled by either party upon 30 days’ advance written notice, is entered into for every project. These supplemental agreements are either “turnkey” agreements providing for a fixed fee to be paid for each unit of seismic data acquired or “term” agreements providing for a fixed hourly, daily, or monthly fee during the term of the project. The duration of these projects will vary from a few days to several months. The Company recognizes revenue when services are performed under both types of agreements. Services are defined as the commencement of data acquisition. Under turnkey agreements, the total number of units of seismic data to be gathered is set forth in the agreement, and revenue is recognized as services are performed on a per unit of seismic data acquired rate. Under term agreements, revenue is recognized as services are performed based on the time worked rate provided in the term agreement. Under both turnkey and term agreements, cost of earned revenue is recognized by multiplying total estimated agreement cost by the percentage-of-completion of the agreement. The excess of that amount over the cost of earned revenue reported in prior periods is recognized as cost of earned revenue for the period. Agreements are not segmented or combined for purposes of calculating percentage of completion. The asset “Cost and estimated earnings in excess of billings on uncompleted contracts” represents cost incurred on turnkey agreements in excess of billings on those agreements. The liability “Billings in excess of costs and estimated earnings on uncompleted contracts” represents billings on turnkey agreements in excess of cost on those agreements.

RECENT ACCOUNTING PRONOUNCEMENTS

In July 2010, the FASB issued accounting standard update (“ASU”) 2010-20, “Receivables — Disclosures about the Credit Quality of Financing Receivables and the Allowance for Credit Losses”. ASU 2010-20 amends Topic 310 to improve the disclosures that an entity provides about the credit quality of its financing receivables and the related allowance for credit losses. As a result of these amendments, an entity is required to disaggregate by portfolio segment or class certain existing disclosures and provide new disclosures about certain financing receivables and related allowance for credit losses. These provisions are effective for interim and annual reporting periods ending on or after December 15, 2010. The adoption of this standard did not have a significant impact on our financial statements or disclosures.