<SEC-DOCUMENT>0001193125-21-306701-index.html : 20211025
<SEC-HEADER>0001193125-21-306701.hdr.sgml : 20211025
<ACCEPTANCE-DATETIME>20211025170302
ACCESSION NUMBER:		0001193125-21-306701
CONFORMED SUBMISSION TYPE:	SC 13D/A
PUBLIC DOCUMENT COUNT:		1
FILED AS OF DATE:		20211025
DATE AS OF CHANGE:		20211025
GROUP MEMBERS:		DAN WILKS
GROUP MEMBERS:		FARRIS WILKS
GROUP MEMBERS:		STACI WILKS

SUBJECT COMPANY:	

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			DAWSON GEOPHYSICAL CO
		CENTRAL INDEX KEY:			0000799165
		STANDARD INDUSTRIAL CLASSIFICATION:	OIL AND GAS FIELD EXPLORATION SERVICES [1382]
		IRS NUMBER:				742095844
		STATE OF INCORPORATION:			TX
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SC 13D/A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	005-37717
		FILM NUMBER:		211344863

	BUSINESS ADDRESS:	
		STREET 1:		508 WEST WALL
		STREET 2:		SUITE 800
		CITY:			MIDLAND
		STATE:			TX
		ZIP:			79701
		BUSINESS PHONE:		4326843000

	MAIL ADDRESS:	
		STREET 1:		508 WEST WALL
		STREET 2:		SUITE 800
		CITY:			MIDLAND
		STATE:			TX
		ZIP:			79701

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	TGC INDUSTRIES INC
		DATE OF NAME CHANGE:	19920703

FILED BY:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Wilks Brothers, LLC
		CENTRAL INDEX KEY:			0001662888
		IRS NUMBER:				452388948
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SC 13D/A

	BUSINESS ADDRESS:	
		STREET 1:		17018 INTERSTATE 20
		CITY:			CISCO
		STATE:			TX
		ZIP:			76437
		BUSINESS PHONE:		8178503600

	MAIL ADDRESS:	
		STREET 1:		17018 INTERSTATE 20
		CITY:			CISCO
		STATE:			TX
		ZIP:			76437
</SEC-HEADER>
<DOCUMENT>
<TYPE>SC 13D/A
<SEQUENCE>1
<FILENAME>d244731dsc13da.htm
<DESCRIPTION>SC 13D/A
<TEXT>
Document 1 - file: d244731dsc13da.htm

</DOCUMENT>
</SEC-DOCUMENT>