Form 4/A - Statement of changes in beneficial ownership of securities: [Amend]
SEC Accession No. 0001104659-17-016346
Filing Date
2017-03-14
Accepted
2017-03-14 14:41:21
Documents
1
Period of Report
2015-02-11

Document Format Files

Seq Description Document Type Size
1 4/A a4a.html 4/A  
1 4/A a4a.xml 4/A 4344
  Complete submission text file 0001104659-17-016346.txt   5773
Mailing Address 508 WEST WALL SUITE 800 MIDLAND TX 79701
Business Address 508 WEST WALL SUITE 800 MIDLAND TX 79701 4326843000
DAWSON GEOPHYSICAL CO (Issuer) CIK: 0000799165 (see all company filings)

EIN.: 742095844 | State of Incorp.: TX | Fiscal Year End: 1231
SIC: 1382 Oil & Gas Field Exploration Services

Mailing Address 1360 ELDER AVENUE MENLO PARK CA 94025
Business Address
Vander Ploeg Mark A (Reporting) CIK: 0001604461 (see all company filings)

Type: 4/A | Act: 34 | File No.: 001-32472 | Film No.: 17687847