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Filing Detail
Form 425 - Prospectuses and communications, business combinations:
SEC Accession No. 0001104659-11-050383
Filing Date
2011-09-06
Accepted
2011-09-06 17:25:47
Documents
4

Document Format Files

Seq Description Document Type Size
1 CURRENT REPORT OF MATERIAL EVENTS OR CORPORATE CHANGES a11-26035_18k.htm 425 30083
2 EX-99.1 a11-26035_1ex99d1.htm EX-99.1 22311
3 GRAPHIC g260351mai001.gif GRAPHIC 3275
4 GRAPHIC g260351mai002.jpg GRAPHIC 3109
  Complete submission text file 0001104659-11-050383.txt   63030
Mailing Address 508 WEST WALL SUITE 800 MIDLAND TX 79701
Business Address 508 WEST WALL SUITE 800 MIDLAND TX 79701 9156843000
DAWSON GEOPHYSICAL CO (Subject) CIK: 0000351231 (see all company filings)

IRS No.: 750970548 | State of Incorp.: TX | Fiscal Year End: 0930
Type: 425 | Act: 34 | File No.: 001-34404 | Film No.: 111076536
SIC: 1382 Oil & Gas Field Exploration Services

Mailing Address 101 E. PARK BLVD., SUITE 955 PLANO TX 75074
Business Address 101 E. PARK BLVD., SUITE 955 PLANO TX 75074 9728811099
TGC INDUSTRIES INC (Filed by) CIK: 0000799165 (see all company filings)

IRS No.: 742095844 | State of Incorp.: TX | Fiscal Year End: 1231
Type: 425
SIC: 1382 Oil & Gas Field Exploration Services