Form SC 13G/A - Statement of Beneficial Ownership by Certain Investors: [Amend]
SEC Accession No. 0001057439-16-000128
Filing Date
2016-01-21
Accepted
2016-01-21 11:44:27
Documents
1

Document Format Files

Seq Description Document Type Size
1 dwsn.txt SC 13G/A 3111
  Complete submission text file 0001057439-16-000128.txt   4663
Mailing Address 508 WEST WALL SUITE 800 MIDLAND TX 79701
Business Address 508 WEST WALL SUITE 800 MIDLAND TX 79701 4326843000
DAWSON GEOPHYSICAL CO (Subject) CIK: 0000799165 (see all company filings)

EIN.: 742095844 | State of Incorp.: TX | Fiscal Year End: 1231
Type: SC 13G/A | Act: 34 | File No.: 005-37717 | Film No.: 161352867
SIC: 1382 Oil & Gas Field Exploration Services

Mailing Address 501 MERRITT 7 NORWALK CT 06851
Business Address 501 MERRITT 7 NORWALK CT 06851 2036537060
THOMSON HORSTMANN & BRYANT INC (Filed by) CIK: 0001057439 (see all company filings)

EIN.: 223508647 | State of Incorp.: DE | Fiscal Year End: 1231
Type: SC 13G/A