<SEC-DOCUMENT>0001104659-19-009679.txt : 20190221
<SEC-HEADER>0001104659-19-009679.hdr.sgml : 20190221
<ACCEPTANCE-DATETIME>20190221060205
ACCESSION NUMBER:		0001104659-19-009679
CONFORMED SUBMISSION TYPE:	8-K
PUBLIC DOCUMENT COUNT:		4
CONFORMED PERIOD OF REPORT:	20190221
ITEM INFORMATION:		Entry into a Material Definitive Agreement
ITEM INFORMATION:		Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant
ITEM INFORMATION:		Regulation FD Disclosure
ITEM INFORMATION:		Financial Statements and Exhibits
FILED AS OF DATE:		20190221
DATE AS OF CHANGE:		20190221

FILER:

	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:		8-K
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-32472
		FILM NUMBER:		19620432

	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
</SEC-HEADER>
<DOCUMENT>
<TYPE>8-K
<SEQUENCE>1
<FILENAME>a19-5006_18k.htm
<DESCRIPTION>8-K
<TEXT>


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<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="5" face="Times New Roman" style="font-size:18.0pt;font-weight:bold;">UNITED STATES</font></b></p>
<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="5" face="Times New Roman" style="font-size:18.0pt;font-weight:bold;">SECURITIES AND EXCHANGE COMMISSION</font></b></p>
<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">Washington, D.C. 20549</font></b></p>
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="5" face="Times New Roman" style="font-size:18.0pt;font-weight:bold;">FORM&nbsp;8-K</font></b></p>
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="3" face="Times New Roman" style="font-size:12.0pt;font-weight:bold;">CURRENT REPORT</font></b></p>
<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="3" face="Times New Roman" style="font-size:12.0pt;font-weight:bold;">Pursuant to Section&nbsp;13 or 15(d)</font></b></p>
<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="3" face="Times New Roman" style="font-size:12.0pt;font-weight:bold;">of the Securities Exchange Act of 1934</font></b></p>
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Date of report (date of earliest event reported):<b> February&nbsp;21, 2019</b></font></p>
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="5" face="Times New Roman" style="font-size:18.0pt;font-weight:bold;">DAWSON GEOPHYSICAL COMPANY</font></b></p>
<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(Exact name of Registrant as specified in its charter)</font></p>
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<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">TEXAS</font></b></p>    </td>
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<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">001-32472</font></b></p>    </td>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
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<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">74-2095844</font></b></p>    </td>   </tr>
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<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(State of incorporation<br>   or organization)</font></p>    </td>
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<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(Commission file   number)</font></p>    </td>
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<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(I.R.S. employer   identification number)</font></p>    </td>   </tr>  </table>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">508 West Wall, Suite&nbsp;800</font></b></p>
<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">Midland, Texas 79701</font></b></p>
<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(Address of principal executive offices) (Zip Code)</font></p>
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">(432) 684-3000</font></b></p>
<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(Registrant&#146;s telephone number, including area code)</font></p>
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">(Former name or former address, if changed since last report)</font></p>
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Check the appropriate box below if the Form&nbsp;8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (<i>see</i> General Instruction A.2. below):</font></p>
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
<p style="font-size:10.0pt;margin:0in 0in .0001pt;text-indent:.25in;"><font size="2" face="Wingdings" style="font-size:10.0pt;">o</font>&#160; Written communications pursuant to Rule&nbsp;425 under the Securities Act (17 CFR 230.425)</p>
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
<p style="font-size:10.0pt;margin:0in 0in .0001pt;text-indent:.25in;"><font size="2" face="Wingdings" style="font-size:10.0pt;">o</font>&#160; Soliciting material pursuant to Rule&nbsp;14a-12 under the Exchange Act (17 CFR 240.14a-12)</p>
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
<p style="font-size:10.0pt;margin:0in 0in .0001pt;text-indent:.25in;"><font size="2" face="Wingdings" style="font-size:10.0pt;">o</font>&#160; Pre-commencement communications pursuant to Rule&nbsp;14d-2(b)&nbsp;under the Exchange Act<font size="1" style="font-size:3.0pt;">&#160;&#160;&#160;&#160;&#160;&#160; </font>(17 CFR 240.14d-2(b))</p>
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
<p style="font-size:10.0pt;margin:0in 0in .0001pt;text-indent:.25in;"><font size="2" face="Wingdings" style="font-size:10.0pt;">o</font>&#160; Pre-commencement communications pursuant to Rule&nbsp;13e-4(c)&nbsp;under the Exchange Act<font size="1" style="font-size:3.0pt;">&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; </font>(17 CFR 240.13e-4(c))</p>
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Indicate by check mark whether the registrant is an emerging growth company as defined in Rule&nbsp;405 of the Securities Act of 1933 (&#167;230.405 of this chapter) or Rule&nbsp;12b-2 of the Securities Exchange Act of 1934 (&#167;240.12b-2 of this chapter).</font></p>
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
<p style="font-size:10.0pt;margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Emerging growth company </font><font face="Wingdings">o</font></p>
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
<p style="font-size:10.0pt;margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section&nbsp;13(a)&nbsp;of the Exchange Act. </font><font face="Wingdings">o</font></p>
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
<p style="font-size:10.0pt;margin:0in 0in .0001pt;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">Item 1.01.</font></b><font size="1" style="font-size:3.0pt;">&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; </font><b>Entry Into Material Definitive Agreements.</b></p>
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
<p style="margin:0in 0in .0001pt;"><i><font size="2" face="Times New Roman" style="font-size:10.0pt;font-style:italic;">Amendment to Credit Facility</font></i></p>
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
<p style="margin:0in 0in .0001pt;text-indent:.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">On November&nbsp;23, 2018, Dawson Geophysical Company (the &#147;Company&#148;) entered into a Seventeenth Amendment (the &#147;Amendment&#148;) to the Amended and Restated Loan and Security Agreement (as amended, the &#147;Amended Loan Agreement&#148;) with its lender, Veritex Community Bank, a Texas state bank (&#147;Veritex Bank&#148;). The Amendment amended the payment schedule and the interest rate terms of a letter of credit issued by Veritex Bank at the Company&#146;s request. A copy of the Amendment is attached hereto as Exhibit 10.1.</font></p>
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
<p style="margin:0in 0in .0001pt;text-indent:.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">The foregoing description of the Amendment is qualified in its entirety by reference to the full text of the Amendment, which is filed as Exhibit&nbsp;10.1 to this Current Report and is incorporated by reference herein.</font></p>
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
<p style="font-size:10.0pt;margin:0in 0in .0001pt;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">Item 2.03.</font></b><b><font size="1" style="font-size:3.0pt;font-weight:bold;">&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; </font></b><b>Creation of Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant.</b></p>
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
<p style="margin:0in 0in .0001pt;text-indent:.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">The information provided in item 1.01 of this Current Report on Form&nbsp;8-K is incorporated herein by reference.</font></p>
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
<p style="font-size:10.0pt;margin:0in 0in .0001pt;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">Item 7.01.</font></b><font size="1" style="font-size:3.0pt;">&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; </font><b>Regulation FD Disclosure.</b></p>
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
<p style="margin:0in 0in .0001pt;text-indent:.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">On February&nbsp;21, 2019, the Company issued a press release announcing that it plans to publicly release its preliminary and unaudited financial results for its 2018 year-end and the quarter ended December&nbsp;31, 2018, the Company&#146;s fourth quarter of 2018, before the market opens on Thursday, February&nbsp;28, 2019. In addition, the Company announced that an investors&#146; conference call to review the fourth quarter results will be held on Thursday, February&nbsp;28, 2019, at 9:00 a.m.&nbsp;Central Time.</font></p>
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
<p style="margin:0in 0in .0001pt;text-indent:.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">A copy of the press release is furnished as an exhibit to this Current Report. In accordance with General Instruction B.2 of Form&nbsp;8-K, the information set forth herein and in the press release is deemed to be &#147;furnished&#148; and shall not be deemed to be &#147;filed&#148; for purposes of the Securities Exchange Act of 1934, as amended (the &#147;Exchange Act&#148;).</font></p>
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
<p style="font-size:10.0pt;margin:0in 0in .0001pt 1.0in;text-indent:-1.0in;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">Item 9.01.</font></b><font size="1" style="font-size:3.0pt;">&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; </font><b>Financial Statements and Exhibits.</b></p>
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
<p style="font-size:10.0pt;margin:0in 0in .0001pt;text-indent:.5in;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">(d)</font></b><font size="1" style="font-size:3.0pt;">&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; </font><b><i style="font-weight:bold;">Exhibits</i>.</b></p>
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
<p style="margin:0in 0in .0001pt;text-indent:.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">In accordance with General Instruction B.2 of Form&nbsp;8-K, the information set forth in the attached Exhibit&nbsp;99.1 is deemed to be &#147;furnished&#148; and shall not be deemed to be &#147;filed&#148; for purposes of Section&nbsp;18 of the Exchange Act.</font></p>
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
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<p style="margin:0in 0in .0001pt;"><b><font size="1" face="Times New Roman" style="font-size:8.0pt;font-weight:bold;">EXHIBIT<br>   NUMBER</font></b></p>    </td>
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<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="1" face="Times New Roman" style="font-size:1.0pt;font-weight:bold;">&nbsp;</font></b></p>    </td>
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<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="1" face="Times New Roman" style="font-size:8.0pt;font-weight:bold;">DESCRIPTION</font></b></p>    </td>   </tr>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">10.1</font></p>    </td>
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<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&#151;</font></p>    </td>
<td width="84%" valign="top" style="padding:0in 0in 0in 0in;width:84.16%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;"><a href="a19-5006_1ex10d1.htm#Exhibit10_1_112400" title="Click to goto ">Seventeenth Amendment to Amended and Restated Loan and   Security Agreement, by and between Dawson Geophysical Company and Veritex   Community Bank, dated November&nbsp;23, 2018.</a></font></p>    </td>   </tr>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">99.1</font></p>    </td>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;"><a href="a19-5006_1ex99d1.htm#Exhibit99_1_111210" title="Click to goto ">Press release, dated February&nbsp;21, 2019.</a></font></p>    </td>   </tr>  </table>
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<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">SIGNATURES</font></b></p>
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<p style="margin:0in 0in .0001pt;text-indent:.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.</font></p>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">DAWSON GEOPHYSICAL   COMPANY</font></p>    </td>   </tr>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Date: February&nbsp;21,   2019</font></p>    </td>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">By:</font></p>    </td>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;/s/ James K. Brata</font></p>    </td>   </tr>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">James K. Brata</font></p>    </td>   </tr>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Executive Vice   President, Chief Financial Officer, <br>   Secretary and Treasurer</font></p>    </td>   </tr>  </table>
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<p align="center" style="font-size:10.0pt;margin:0in 0in .0001pt;text-align:center;">3<a name="PB_3_231231_7056"></a></p>
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<p align="right" style="margin:0in 0in .0001pt;text-align:right;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">Exhibit 10.1<a name="Exhibit10_1_112400"></a></font></b></p>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">VERITEX COMMUNITY BANK &#151; LOAN NO. 17039769</font></p>
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<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">SEVENTEENTH AMENDMENT TO<br> AMENDED AND RESTATED LOAN AND SECURITY AGREEMENT</font></b></p>
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<p style="font-size:10.0pt;margin:0in 0in .0001pt;text-indent:.5in;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">THIS SEVENTEENTH AMENDMENT TO AMENDED AND RESTATED LOAN AND SECURITY AGREEMENT </font></b>(this &#147;<i><u style="font-style:italic;">Amendment</u></i>&#148;) dated as of <b>NOVEMBER 23, 2018</b> (the &#147;<i><u style="font-style:italic;">Amendment Effective Date</u></i>&#148;), is by and between (a)&nbsp;<b>VERITEX COMMUNITY BANK</b>, a Texas state bank, as successor-in-interest to <b>SOVEREIGN BANK</b> by merger (together with its successors and assigns, &#147;<i><u style="font-style:italic;">Lender</u></i>&#148;), and (b)&nbsp;<b>DAWSON GEOPHYSICAL COMPANY</b>, a Texas corporation (&#147;<i><u style="font-style:italic;">Debtor</u></i>&#148;), formerly known as <b>TGC INDUSTRIES,&nbsp;INC.</b></p>
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<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><i><u><font size="2" face="Times New Roman" style="font-size:10.0pt;font-style:italic;font-weight:bold;">RECITALS</font></u></i></b></p>
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<p style="font-size:10.0pt;margin:0in 0in .0001pt;text-indent:.5in;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">WHEREAS</font></b>, Debtor and Lender entered into that certain <b>AMENDED AND RESTATED LOAN AND SECURITY AGREEMENT</b> dated as of<b><font style="font-weight:bold;"> SEPTEMBER 16</font>, 2009</b> (as amended, modified, and restated from time to time, the &#147;<i><u style="font-style:italic;">Agreement</u></i>&#148;), pursuant to which Lender agreed to make certain credit facilities available to Debtor on the terms and conditions set forth therein.</p>
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<p style="font-size:10.0pt;margin:0in 0in .0001pt;text-indent:.5in;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">WHEREAS</font></b>, in connection with the Agreement, Debtor executed that certain <b>PROMISSORY NOTE</b> dated as of<b> SEPTEMBER 30, 2016</b> in the principal/notational amount of <b>ONE MILLION SEVEN HUNDRED SIXTY-SEVEN THOUSAND ONE HUNDRED FIFTEEN AND NO/100 DOLLARS ($1,767,115.00)</b>, payable to the order of Lender (as amended, modified or restated from time to time, the &#147;<i><u style="font-style:italic;">Letter of Credit Note</u></i>&#148;);</p>
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<p style="font-size:10.0pt;margin:0in 0in .0001pt;text-indent:.5in;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">WHEREAS</font></b>, the parties desire to amend the Agreement and modify the Note pursuant to the terms and conditions set forth herein.</p>
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<p style="font-size:10.0pt;margin:0in 0in .0001pt;text-indent:.5in;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">NOW THEREFORE</font></b>, for good and valuable consideration, the receipt and sufficiency of which are hereby acknowledged, the parties hereto agree as follows:</p>
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<p style="margin:0in 0in .0001pt;text-indent:.5in;"><font size="2" face="Times New Roman"><font style="font-size:10.0pt;">1.&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; </font><b><u style="font-weight:bold;">Defined Terms</u></b>.&#160; Capitalized terms used in this Amendment, to the extent not otherwise defined herein, shall have the same meanings as in the Agreement, as amended hereby.</font></p>
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
<p style="margin:0in 0in .0001pt;text-indent:.5in;"><font size="2" face="Times New Roman"><font style="font-size:10.0pt;">2.&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; </font><b><u style="font-weight:bold;">Amendment to Section&nbsp;1 of the Letter of Credit Note</u></b>.&#160; <u>Section&nbsp;1</u> of the Letter of Credit Note is hereby deleted in its entirety and replaced with the following:</font></p>
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<p style="margin:0in 0in .0001pt .5in;text-indent:.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">1.&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; <b><u style="font-weight:bold;">Rate</u></b>.&#160; Prior to the Maturity Date or an Event of Default, the Rate shall be the <b><u style="font-weight:bold;">LESSER</u></b> of: (a)&nbsp;the <b><u style="font-weight:bold;">LESSER</u></b> of (i)&nbsp;the <b>MAXIMUM RATE</b> and (ii)&nbsp;<b>SEVEN AND ONE-QUARTER OF ONE PERCENT (7.25%)</b>; or (b)&nbsp;the <b><u style="font-weight:bold;">GREATER</u></b> of (i)&nbsp;the <b>PRIME RATE</b>, or (ii)&nbsp;<b>FIVE AND ONE-QUARTER OF ONE PERCENT (5.25%) </b>(the interest rate floor).&#160; From and after the Maturity Date, the Rate shall be the Maturity Rate.&#160; The term &#147;<i><u style="font-style:italic;">Prime Rate</u></i>&#148; means a variable rate of interest per annum equal to the prime rate as published from time to time in the &#147;<u>Money Rates</u>&#148; table of <i>The Wall Street Journal</i>.&#160; If such prime rate, as so quoted, is split between two or more different interest rates, then the Prime Rate shall be the highest of such interest rates.&#160; If the prime rate is no longer published in the &#147;<u>Money Rates</u>&#148; table of <i>The Wall Street Journal</i>, then the Prime Rate shall be: (a)&nbsp;the rate of interest per annum established from time to time by Lender and designated as its base or prime rate, which may not necessarily be the lowest rate charged by Lender and is set by Lender in its sole discretion; or (b)&nbsp;if Lender does not publish or announce a base or prime rate, or does so infrequently or sporadically, then the Prime Rate shall be determined by reference to another base rate, prime rate, or similar lending rate index, generally accepted on a national basis, as selected by Lender in its sole and absolute discretion.&#160; Notwithstanding any provision of this Note or any other agreement or commitment between Debtor and Lender, whether written or oral, express or implied, Lender shall never be entitled to charge, receive or collect, nor shall amounts received hereunder be credited so that Lender shall be paid, as interest a sum greater than interest at the Maximum Rate.&#160; It is the intention of the parties that this Note, and all instruments securing the payment of this Note or executed or delivered in connection therewith, shall comply with applicable law.&#160; If Lender ever contracts for, charges, receives or collects anything of value which is deemed to be interest under </font></p>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">SEVENTEENTH AMENDMENT TO AMENDED AND RESTATED LOAN AND SECURITY AGREEMENT</font></p>
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">VERITEX COMMUNITY BANK &#151; DAWSON GEOPHYSICAL COMPANY &#151; PAGE 1</font></p>
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<p style="margin:0in 0in .0001pt .5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">applicable law, and if the occurrence of any circumstance or contingency, whether acceleration of maturity of this Note, prepayment of this Note, delay in advancing proceeds of this Note or any other event, should cause such interest to exceed the Maximum Rate, any amount which exceeds interest at the Maximum Rate shall be applied to the reduction of the unpaid principal balance of this Note or any other Indebtedness, and if this Note and such other Indebtedness are paid in full, any remaining excess shall be paid to Debtor.&#160; In determining whether the interest exceeds interest at the Maximum Rate, the total amount of interest shall be spread, prorated and amortized throughout the entire term of this Note until its payment in full.&#160; The term &#147;<i><u style="font-style:italic;">Maximum Rate</u></i>&#148; as used in this Note means the maximum nonusurious rate of interest per annum permitted by whichever of applicable United States federal law or Texas law permits the higher interest rate, including to the extent permitted by applicable law, any amendments thereof hereafter or any new law hereafter coming into effect to the extent a higher Maximum Rate is permitted thereby.&#160; If at any time the Rate shall exceed the Maximum Rate, the Rate shall be automatically limited to the Maximum Rate until the total amount of interest accrued hereunder equals the amount of interest which would have accrued if there had been no limitation to the Maximum Rate.&#160; To the extent, if any, that Chapter&nbsp;303 of the Texas Finance Code, as amended, (the &#147;<i><u style="font-style:italic;">Act</u></i>&#148;) is relevant to Lender for purposes of determining the Maximum Rate, the parties elect to determine the Maximum Rate under the Act pursuant to the &#147;weekly ceiling&#148; from time to time in effect, as referred to and defined in &#167;303.001-303.016 of the Act; subject, however, to any right Lender subsequently may have under applicable law to change the method of determining the Maximum Rate.</font></p>
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<p style="margin:0in 0in .0001pt;text-indent:.5in;"><font size="2" face="Times New Roman"><font style="font-size:10.0pt;">3.&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; </font><b><u style="font-weight:bold;">Amendment to Section&nbsp;3 of the Letter of Credit Note</u></b>.&#160; <u>Section&nbsp;3</u> of the Letter of Credit Note is hereby deleted in its entirety and replaced with the following:</font></p>
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<p style="margin:0in 0in .0001pt .5in;text-indent:.5in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">3.&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; <b><u style="font-weight:bold;">Payment Schedule</u></b>.&#160; Debtor agrees to pay Lender (without setoff) the amount of any draft or request for payment Lender has honored or will honor purporting to be drawn or made on the Letter of Credit (the amount of such draft being the &#147;<i><u style="font-style:italic;">Principal Balance</u></i>&#148;) at its offices as set forth herein, or at such other place as may be designated by Lender, on or before the <b><u style="font-weight:bold;">EARLIER</u></b> of: (i)&nbsp;the date that is <b>THIRTY (30) </b>days after the date Lender honors any such draft or request for payment; or (ii)&nbsp;<b>NOVEMBER 23, 2019</b>.&#160; Except as expressly provided herein to the contrary, all payments under this Note shall be applied in the following order of priority: (i)&nbsp;the payment or reimbursement of any expenses, costs or obligations (other than the Principal Balance and interest thereon) for which either Debtor shall be obligated or Lender shall be entitled pursuant to the provisions of this Note or the Loan Agreement; (ii)&nbsp;the payment of accrued but unpaid interest on the Principal Balance; and (iii)&nbsp;the payment of all or any portion of the Principal Balance hereof then outstanding hereunder.&#160; If an Event of Default exists, then Lender may, at the sole option of Lender, apply any such payments, at any time and from time to time, to any of the items specified in clauses&nbsp;(i), (ii)&nbsp;or (iii)&nbsp;above without regard to the order of priority otherwise specified herein.&#160; If any payment of principal or interest on this Note shall become due on a day other than a Business Day, such payment shall be made on the next succeeding Business Day and such extension of time shall be included in computing interest in connection with such payment.&#160; Notwithstanding anything herein to the contrary, if requested by Lender, Debtor shall pay such Principal Balance in advance of the date Lender is to honor the draft or request for payment.&#160; Debtor shall pay such amount in good funds at Lender&#146;s address indicated in this Note.</font></p>
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<p style="margin:0in 0in .0001pt;text-indent:.5in;"><font size="2" face="Times New Roman"><font style="font-size:10.0pt;">4.&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; </font><b><u style="font-weight:bold;">Conditions Precedent</u></b>.&#160; The obligations of Lender under this Amendment shall be subject to the condition precedent that Debtor shall have executed and delivered to Lender this Amendment and such other documents and instruments incidental and appropriate to the transaction provided for herein as Lender or its counsel may reasonably request.</font></p>
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<p style="margin:0in 0in .0001pt;text-indent:.5in;"><font size="2" face="Times New Roman"><font style="font-size:10.0pt;">5.&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; </font><b><u style="font-weight:bold;">Payment Expenses</u></b>.&#160; Debtor agrees to pay all reasonable attorneys&#146; fees of Lender in connection with the drafting and execution of this Amendment.</font></p>
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<p style="margin:0in 0in .0001pt;text-indent:.5in;"><font size="2" face="Times New Roman"><font style="font-size:10.0pt;">6.&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; </font><b><u style="font-weight:bold;">Ratifications</u></b>.&#160; Except as expressly modified and superseded by this Amendment, the Agreement and the other Loan Documents are ratified and confirmed and continue in full force and effect.&#160; The Loan Documents, as modified by this Amendment, continue to be legal, valid, binding and enforceable in accordance with their respective terms.&#160; Without limiting the generality of the foregoing, Debtor hereby ratifies and confirms that all liens heretofore granted to Lender were intended to, do and continue to secure the full payment and performance of </font></p>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">SEVENTEENTH AMENDMENT TO AMENDED AND RESTATED LOAN AND SECURITY AGREEMENT</font></p>
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">VERITEX COMMUNITY BANK &#151; DAWSON GEOPHYSICAL COMPANY &#151; PAGE 2</font></p>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">the indebtedness arising under the Loan Documents.&#160; Debtor agrees to perform such acts and duly authorize, execute, acknowledge, deliver, file and record such additional assignments, security agreements, modifications or agreements to any of the foregoing, and such other agreements, documents and instruments as Lender may reasonably request in order to perfect and protect those liens and preserve and protect the rights of Lender in respect of all present and future collateral.&#160; The terms, conditions and provisions of the Loan Documents (as the same may have been amended, modified or restated from time to time) are incorporated herein by reference, the same as if stated verbatim herein.</font></p>
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
<p style="margin:0in 0in .0001pt;text-indent:.5in;"><font size="2" face="Times New Roman"><font style="font-size:10.0pt;">7.&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; </font><b><u style="font-weight:bold;">Representations, Warranties and Confirmations</u></b>.&#160; Debtor hereby represents and warrants to Lender that: (a)&nbsp;this Amendment and any other Loan Documents to be delivered under this Amendment (if any) have been duly executed and delivered by Debtor, are valid and binding upon Debtor and are enforceable against Debtor in accordance with their terms, except as limited by any applicable bankruptcy, insolvency or similar laws of general application relating to the enforcement of creditors&#146; rights and except to the extent specific remedies may generally be limited by equitable principles; (b)&nbsp;no action of, or filing with, any governmental authority is required to authorize, or is otherwise required in connection with, the execution, delivery and performance by Debtor of this Amendment or any other Loan Document to be delivered under this Amendment; and (c)&nbsp;the execution, delivery and performance by Debtor of this Amendment and any other Loan Documents to be delivered under this Amendment do not require the consent of any other person and do not constitute a violation of any laws, agreements or understandings to which Debtor is a party or by which Debtor is bound.</font></p>
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
<p style="margin:0in 0in .0001pt;text-indent:.5in;"><font size="2" face="Times New Roman"><font style="font-size:10.0pt;">8.&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; </font><b><u style="font-weight:bold;">Release</u></b>.&#160; Debtor hereby acknowledges and agrees that it knows of no defenses, counterclaims, offsets, cross-complaints, claims or demands of any kind or nature whatsoever to or against Lender or the terms and provisions of or the obligations of Debtor under the Loan Documents and the other agreements, instruments and documents evidencing, securing, governing, guaranteeing or pertaining thereto, and that Debtor has no right to seek affirmative relief or damages of any kind or nature from Lender with respect thereto.&#160; To the extent Debtor knows of any such defenses, counterclaims, offsets, cross-complaints, claims, demands or rights, Debtor hereby waives, and hereby knowingly and voluntarily releases and forever discharges Lender and its predecessors, officers, directors, agents, attorneys, employees, successors and assigns, from all possible claims, demands, actions, causes of action, defenses, counterclaims, offsets, cross-complaints, damages, costs, expenses and liabilities whatsoever with respect thereto, such waiver and release being with full knowledge and understanding of the circumstances and effects of such waiver and release and after having consulted legal counsel with respect thereto.</font></p>
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
<p style="margin:0in 0in .0001pt;text-indent:.5in;"><font size="2" face="Times New Roman"><font style="font-size:10.0pt;">9.&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; </font><b><u style="font-weight:bold;">Multiple Counterparts</u></b>.&#160; This Amendment may be executed in a number of identical separate counterparts, each of which for all purposes is to be deemed an original, but all of which shall constitute, collectively, one agreement.&#160; Signature pages&nbsp;to this Amendment may be detached from multiple separate counterparts and attached to the same document and a telecopy or other facsimile of any such executed signature page&nbsp;shall be valid as an original.</font></p>
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
<p style="margin:0in 0in .0001pt;text-indent:.5in;"><font size="2" face="Times New Roman"><font style="font-size:10.0pt;">10.&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; </font><b><u style="font-weight:bold;">Reference to Loan Documents</u></b>.&#160; Each of the Loan Documents, including the Agreement and any and all other agreements, documents, or instruments now or hereafter executed and delivered pursuant to the terms hereof containing a reference to any Loan Document shall mean and refer to such Loan Document as amended hereby.</font></p>
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
<p style="margin:0in 0in .0001pt;text-indent:.5in;"><font size="2" face="Times New Roman"><font style="font-size:10.0pt;">11.&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; </font><b><u style="font-weight:bold;">Severability</u></b>.&#160; Any provision of this Amendment held by a court of competent jurisdiction to be invalid or unenforceable shall not impair or invalidate the remainder of this Amendment and the effect thereof shall be confined to the provision so held to be invalid or unenforceable.</font></p>
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
<p style="margin:0in 0in .0001pt;text-indent:.5in;"><font size="2" face="Times New Roman"><font style="font-size:10.0pt;">12.&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160; </font><b><u style="font-weight:bold;">Headings</u></b>.&#160; The headings, captions, and arrangements used in this Amendment are for convenience only and shall not affect the interpretation of this Amendment.</font></p>
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">SEVENTEENTH AMENDMENT TO AMENDED AND RESTATED LOAN AND SECURITY AGREEMENT</font></p>
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">VERITEX COMMUNITY BANK &#151; DAWSON GEOPHYSICAL COMPANY &#151; PAGE 3</font></p>
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><u><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">NOTICE OF FINAL AGREEMENT</font></u></b></p>
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
<p style="margin:0in 0in .0001pt;text-indent:.5in;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">THE AGREEMENT AND THE OTHER LOAN DOCUMENTS, AS THE SAME MAY&nbsp;BE AMENDED BY THIS AMENDMENT, REPRESENT THE FINAL AGREEMENT BETWEEN AND AMONG THE PARTIES AND MAY&nbsp;NOT BE CONTRADICTED BY EVIDENCE OF PRIOR, CONTEMPORANEOUS OR SUBSEQUENT ORAL AGREEMENTS OF THE PARTIES.&#160; THERE ARE NO UNWRITTEN ORAL AGREEMENTS BETWEEN AND AMONG THE PARTIES.</font></b></p>
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><i><font size="2" face="Times New Roman" style="font-size:10.0pt;font-style:italic;font-weight:bold;">REMAINDER OF PAGE LEFT INTENTIONALLY BLANK</font></i></b></p>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">SEVENTEENTH AMENDMENT TO AMENDED AND RESTATED LOAN AND SECURITY AGREEMENT</font></p>
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">VERITEX COMMUNITY BANK &#151; DAWSON GEOPHYSICAL COMPANY &#151; PAGE 4</font></p>
<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
<p style="font-size:10.0pt;margin:0in 0in .0001pt;text-indent:.5in;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">IN WITNESS WHEREOF</font></b>, the parties have caused this Amendment to be duly executed as of the Amendment Effective Date.</p>
<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
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<p style="margin:0in 0in .0001pt 10.0pt;text-indent:-10.0pt;"><b><i><font size="2" face="Times New Roman" style="font-size:10.0pt;font-style:italic;font-weight:bold;">LENDER:</font></i></b></p>    </td>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
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<p style="margin:0in 0in .0001pt;"><b><i><font size="2" face="Times New Roman" style="font-size:10.0pt;font-style:italic;font-weight:bold;">ADDRESS:</font></i></b></p>    </td>   </tr>
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<p style="margin:0in 0in .0001pt 10.0pt;text-indent:-10.0pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>    </td>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>    </td>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>    </td>   </tr>
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<p style="margin:0in 0in .0001pt 10.0pt;text-indent:-10.0pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">VERITEX   COMMUNITY BANK</font></p>    </td>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">8214 Westchester Drive,   Suite&nbsp;650</font></p>    </td>   </tr>
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<td width="6%" valign="top" style="padding:0in 0in 0in 0in;width:6.26%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
<td width="2%" valign="top" style="padding:0in 0in 0in 0in;width:2.18%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Dallas, TX&nbsp; 75225</font></p>    </td>   </tr>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">By:</font></p>    </td>
<td width="41%" valign="top" style="border:none;border-bottom:solid windowtext 1.0pt;padding:0in 0in 0in 0in;width:41.58%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">/s/ Seth P. Allen</font></p>    </td>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>   </tr>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Name:</font></p>    </td>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Seth P. Allen</font></p>    </td>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>   </tr>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Title:</font></p>    </td>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Senior Vice President</font></p>    </td>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>   </tr>
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<p style="margin:0in 0in .0001pt 10.0pt;text-indent:-10.0pt;"><b><i><font size="2" face="Times New Roman" style="font-size:10.0pt;font-style:italic;font-weight:bold;">&nbsp;</font></i></b></p>    </td>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>    </td>
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<p style="margin:0in 0in .0001pt;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">&nbsp;</font></b></p>    </td>   </tr>
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<p style="margin:0in 0in .0001pt 10.0pt;text-indent:-10.0pt;"><b><i><font size="2" face="Times New Roman" style="font-size:10.0pt;font-style:italic;font-weight:bold;">With copies of notices to:</font></i></b></p>    </td>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
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<p style="margin:0in 0in .0001pt;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">HUSCH BLACKWELL LLP</font></b></p>    </td>   </tr>
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<p style="margin:0in 0in .0001pt 10.0pt;text-indent:-10.0pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
<td width="2%" valign="top" style="padding:0in 0in 0in 0in;width:2.18%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">1900 Pearl Street,   Suite&nbsp;1800</font></p>    </td>   </tr>
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<p style="margin:0in 0in .0001pt 10.0pt;text-indent:-10.0pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
<td width="2%" valign="top" style="padding:0in 0in 0in 0in;width:2.18%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Dallas, TX 75201</font></p>    </td>   </tr>
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<p style="margin:0in 0in .0001pt 10.0pt;text-indent:-10.0pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
<td width="2%" valign="top" style="padding:0in 0in 0in 0in;width:2.18%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
<td width="8%" valign="top" style="padding:0in 0in 0in 0in;width:8.82%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Attention:</font></p>    </td>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Steven S. Camp</font></p>    </td>   </tr>
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<p style="margin:0in 0in .0001pt 10.0pt;text-indent:-10.0pt;"><b><i><font size="2" face="Times New Roman" style="font-size:10.0pt;font-style:italic;font-weight:bold;">&nbsp;</font></i></b></p>    </td>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>    </td>
<td width="49%" colspan="2" valign="top" style="padding:0in 0in 0in 0in;width:49.98%;">
<p style="margin:0in 0in .0001pt;"><b><i><font size="2" face="Times New Roman" style="font-size:10.0pt;font-style:italic;font-weight:bold;">&nbsp;</font></i></b></p>    </td>   </tr>
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<p style="margin:0in 0in .0001pt 10.0pt;text-indent:-10.0pt;"><b><i><font size="2" face="Times New Roman" style="font-size:10.0pt;font-style:italic;font-weight:bold;">DEBTOR:</font></i></b></p>    </td>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
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<p style="margin:0in 0in .0001pt;"><b><i><font size="2" face="Times New Roman" style="font-size:10.0pt;font-style:italic;font-weight:bold;">ADDRESS:</font></i></b></p>    </td>   </tr>
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<p style="margin:0in 0in .0001pt 10.0pt;text-indent:-10.0pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>    </td>
<td width="2%" valign="top" style="padding:0in 0in 0in 0in;width:2.18%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>    </td>
<td width="49%" colspan="2" valign="top" style="padding:0in 0in 0in 0in;width:49.98%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>    </td>   </tr>
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<p style="margin:0in 0in .0001pt 10.0pt;text-indent:-10.0pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">DAWSON   GEOPHYSICAL COMPANY</font></p>    </td>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">101 E. Park Blvd.,   Suite&nbsp;955</font></p>    </td>   </tr>
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<p style="margin:0in 0in .0001pt 10.0pt;text-indent:-10.0pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Plano,   TX 75074</font></p>    </td>   </tr>
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<p style="margin:0in 0in .0001pt 10.0pt;text-indent:-10.0pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">By:</font></p>    </td>
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<p style="margin:0in 0in .0001pt 10.0pt;text-indent:-10.0pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">/s/   Wayne Whitener</font></p>    </td>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
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<p style="margin:0in 0in .0001pt 10.0pt;text-indent:-10.0pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Name:</font></p>    </td>
<td width="41%" valign="top" style="padding:0in 0in 0in 0in;width:41.58%;">
<p style="margin:0in 0in .0001pt 10.0pt;text-indent:-10.0pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Wayne   Whitener</font></p>    </td>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>   </tr>
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<p style="margin:0in 0in .0001pt 10.0pt;text-indent:-10.0pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Title:   </font></p>    </td>
<td width="41%" valign="top" style="padding:0in 0in 0in 0in;width:41.58%;">
<p style="margin:0in 0in .0001pt 10.0pt;text-indent:-10.0pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Executive   Vice Chairman</font></p>    </td>
<td width="2%" valign="top" style="padding:0in 0in 0in 0in;width:2.18%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>   </tr>  </table>
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">SEVENTEENTH AMENDMENT TO AMENDED AND RESTATED LOAN AND SECURITY AGREEMENT</font></p>
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">VERITEX COMMUNITY BANK &#151; DAWSON GEOPHYSICAL COMPANY &#151; SIGNATURE PAGE</font></p>
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
<div style="margin:0in 0in .0001pt;"><hr size="3" width="100%" noshade align="left" style="color:#010101;"></div>
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<p align="right" style="margin:0in 0in .0001pt;text-align:right;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">Exhibit&nbsp;99.1</font></b><a name="Exhibit99_1_111210"></a></p>
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
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<p style="font-size:10.0pt;margin:0in 0in .0001pt;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">NEWS   RELEASE</font></b><br>   Dawson Geophysical Company<br>   508 W. Wall, Suite&nbsp;800<br>   Midland, TX 79701</p>    </td>
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<p align="right" style="margin:0in 0in .0001pt;text-align:right;"><font size="2" face="Times New Roman"><img width="140" height="75" src="g50061mmi001.jpg"></font></p>    </td>   </tr>  </table>
<p style="margin:0in 0in .0001pt;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">Company contact:</font></b></p>
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Stephen C. Jumper, CEO and President</font></p>
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">James K. Brata, Chief Financial Officer<br> (800)&nbsp;332-9766<br> www.dawson3d.com</font></p>
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">Dawson Geophysical to Issue Fourth Quarter 2018 Results and</font></b></p>
<p align="center" style="margin:0in 0in .0001pt;text-align:center;"><b><font size="2" face="Times New Roman" style="font-size:10.0pt;font-weight:bold;">Hold Investor Conference Call</font></b></p>
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">MIDLAND, Texas, February&nbsp;21, 2019/PRNewswire/Dawson Geophysical Company (NASDAQ: DWSN) announced today that it plans to publicly release preliminary and unaudited financial results for its year-end 2018 and the quarter ended December&nbsp;31, 2018, the Company&#146;s fourth quarter of 2018, before the market opens on Thursday, February&nbsp;28, 2019. An investor conference call to review the fourth quarter results will be held on Thursday, February&nbsp;28, 2019, at 9:00 a.m.&nbsp;Central Time.</font></p>
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Date:</font></p>    </td>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Thursday, February&nbsp;28, 2019</font></p>    </td>   </tr>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>    </td>
<td width="1%" valign="top" style="padding:0in 0in 0in 0in;width:1.66%;">
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>    </td>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>    </td>   </tr>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Time:</font></p>    </td>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
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<p style="margin:0in 0in .0001pt .05in;text-indent:-.05in;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">10:00 AM ET<br>   9:00 AM CT<br>   8:00 AM MT<br>   7:00 AM PT</font></p>    </td>   </tr>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>    </td>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>    </td>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>    </td>   </tr>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Call:</font></p>    </td>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">1-877-407-9208 (US) and 1-201-493-6784 (Toll/International)</font></p>    </td>   </tr>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>    </td>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>    </td>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>    </td>   </tr>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Internet:</font></p>    </td>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Live and rebroadcast over the internet, log onto   http://www.dawson3d.com</font></p>    </td>   </tr>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>    </td>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>    </td>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>    </td>   </tr>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Replay:</font></p>    </td>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:1.0pt;">&nbsp;</font></p>    </td>
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<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Available until Thursday, March&nbsp;28, 2019, at   1-844-512-2921 (Toll-Free) and 1-412-317-6671 (Toll/International), Passcode   13687410, and available until March&nbsp;28, 2019 on the Company&#146;s web site   at http://www.dawson3d.com</font></p>    </td>   </tr>  </table>
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
<p style="margin:0in 0in .0001pt;"><u><font size="2" face="Times New Roman" style="font-size:10.0pt;">About Dawson Geophysical Company</font></u></p>
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">Dawson Geophysical Company is a leading provider of U.S. onshore seismic data acquisition services with operations throughout the continental United States and Canada.&#160; Dawson acquires and processes 2-D, 3-D and multi-component seismic data solely for its clients, ranging from major oil and gas companies to independent oil and gas operators as well as providers of multi-client data libraries.</font></p>
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
<p style="margin:0in 0in .0001pt;"><u><font size="2" face="Times New Roman" style="font-size:10.0pt;">Forward-Looking Statements</font></u></p>
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">In accordance with the Safe Harbor provisions of the Private Securities Litigation Reform Act of 1995, the Company cautions that statements in this press release which are forward-looking and which provide other than historical information involve risks and uncertainties that may materially affect the Company&#146;s actual results of operations. Such forward looking statements are based on the beliefs of management as well as assumptions made by and information currently available to management. Actual results could differ materially from those contemplated by the forward looking statements as a result of certain factors. These risks include, but are not limited to, dependence upon energy industry spending; the volatility of oil and natural gas prices; changes in economic conditions; the potential for contract delays; reductions or cancellations of service contracts; limited number of customers; credit risk related to our customers; reduced utilization; high fixed costs of operations and high capital requirements; operational disruptions; industry competition; external factors affecting the Company&#146;s crews such as weather interruptions and inability to obtain land access rights of way; whether the Company enters into turnkey or day rate contracts; crew productivity; the availability of capital resources; and disruptions in the global economy. A discussion of these and other factors, including risks and uncertainties, is set forth in the Company&#146;s Annual Report on Form&nbsp;10-K that was filed with the Securities and Exchange Commission on March&nbsp;9, 2018. The Company disclaims any intention or obligation to revise any forward-looking statements, whether as a result of new information, future events or otherwise.</font></p>
<p style="margin:0in 0in .0001pt;"><font size="2" face="Times New Roman" style="font-size:10.0pt;">&nbsp;</font></p>
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end
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
