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Filing Detail
Form 4 - Statement of changes in beneficial ownership of securities:
SEC Accession No. 0001104659-18-021770
Filing Date
2018-04-02
Accepted
2018-04-02 14:57:54
Documents
1
Period of Report
2018-03-29

Document Format Files

Seq Description Document Type Size
1 4 a4.html 4  
1 4 a4.xml 4 2980
  Complete submission text file 0001104659-18-021770.txt   4400
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)

IRS No.: 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 | Act: 34 | File No.: 001-32472 | Film No.: 18728462