DAWSON GEOPHYSICAL CO Contracts & Agreements

Separation and General Release Agreement between the Company and C. Ray Tobias, dated November 27, 2023 (Filed With SEC on December 1, 2023)

Separation and General Release Agreement between the Company and Stephen Jumper, dated November 28, 2023 (Filed With SEC on December 1, 2023)

Separation and General Release Agreement between the Company and James Brata, dated November 30, 2023 (Filed With SEC on December 1, 2023)

Fifth Loan Modification Agreement, dated as of September 30, 2023, by and between Dawson Geophysical Company and Dominion Bank (Filed With SEC on November 9, 2023)

Employment Agreement dated June 16, 2023 between Anthony Clark and the Company (Filed With SEC on June 22, 2023)

Asset Purchase Agreement, dated as of March 24, 2023, by and among Dawson Geophysical Company, Wilks Brothers, LLC and Breckenridge Geophysical, LLC (Filed With SEC on March 24, 2023)

Convertible Note, dated as of March 24, 2023, issued by Dawson Geophysical Company (Filed With SEC on March 24, 2023)

Voting Agreement, dated as of March 24, 2023, by and between Dawson Geophysical Company and Wilks Brothers, LLC (Filed With SEC on March 24, 2023)

Fourth Loan Modification Agreement, dated as of March 21, 2023, by and between Dawson Geophysical Company and Dominion Bank (Filed With SEC on March 24, 2023)

Description of Securities (Filed With SEC on March 13, 2023)

Letter Agreement dated February 14, 2023 between Stephen C. Jumper and the Company (Filed With SEC on February 21, 2023)

Letter Agreement dated November 11, 2022 between C. Ray Tobias and the Company (Filed With SEC on November 16, 2022)

Letter Agreement dated November 11, 2022 between James K. Brata and the Company (Filed With SEC on November 16, 2022)

Third Loan Modification Agreement to Loan and Security Agreement, by and between Dawson Geophysical Company and Dominion Bank, dated September 30, 2022 (Filed With SEC on October 4, 2022)

Description of Securities (Filed With SEC on March 18, 2022)

Amendment No. 3 to Agreement and Plan of Merger, dated December January 10, 2022, by and between the Company, Wilks, LLC and WB Acquisitions Inc (Filed With SEC on January 10, 2022)

Waiver Acknowledgement, dated January 10, 2022, by and between the Company and Stephen C. Jumper (Filed With SEC on January 10, 2022)

Amendment No. 2 to Agreement and Plan of Merger, dated December January 4, 2022, by and between the Company, Wilks, LLC and WB Acquisitions Inc (Filed With SEC on January 5, 2022)

Amendment No. 1 to Agreement and Plan of Merger, dated December 14, 2021, by and between the Company, Wilks, LLC and WB Acquisitions Inc (Filed With SEC on December 17, 2021)

Agreement and Plan of Merger, dated October 25, 2021, by and between the Company, Wilks Brothers, LLC and WB Acquisitions Inc (Filed With SEC on October 25, 2021)

Amendment to Rights Agreement, dated October 25, 2021, between the Company and American Stock Transfer & Trust Company, LLC (Filed With SEC on October 25, 2021)

Second Loan Modification Agreement to Loan and Security Agreement, by and between Dawson Geophysical Company and Dominion Bank, dated September 30, 2021 (Filed With SEC on October 1, 2021)

Amended and Restated Dawson Geophysical Company 2016 Stock and Performance Incentive Plan, effective as of April 24, 2020 (Filed With SEC on May 14, 2021)

Rights Agreement, dated as of April 8, 2021 between Dawson Geophysical Company and American Stock Transfer & Trust Company, LLC, as Rights Agent (Filed With SEC on April 8, 2021)

Description of Securities (Filed With SEC on March 16, 2021)

Loan Modification Agreement to Loan and Security Agreement, by and between Dawson Geophysical Company and Dominion Bank, dated September 30, 2020 (Filed With SEC on September 30, 2020)

Letter Agreement dated September 30, 2020 between Stephen C. Jumper and Dawson Geophysical Company (Filed With SEC on September 30, 2020)

Promissory Note, dated April 15, 2020, from Dawson Geophysical Company to Dominion Bank (Filed With SEC on April 21, 2020)

Letter Agreement, dated April 15, 2020, between James K. Brata and the Company (Filed With SEC on April 21, 2020)

Letter Agreement, dated April 15, 2020, between Stephen C. Jumper and the Company (Filed With SEC on April 21, 2020)

Letter Agreement, dated April 15, 2020, between James W. Thomas and the Company (Filed With SEC on April 21, 2020)

Letter Agreement, dated April 15, 2020, between C. Ray Tobias and the Company (Filed With SEC on April 21, 2020)

Description of Securities (Filed With SEC on March 6, 2020)

Loan and Security Agreement, by and between Dawson Geophysical Company and Dominion Bank, dated September 30, 2019 (Filed With SEC on October 1, 2019)

Eighteenth Amendment to Amended and Restated Loan and Security Agreement, by and between Veritex Community Bank and Dawson Geophysical Company, dated June 30, 2019 (Filed With SEC on July 1, 2019)

Letter Agreement, dated June 30, 2019, between Wayne A. Whitener and the Company (Filed With SEC on July 1, 2019)

Seventeenth Amendment to Amended and Restated Loan and Security Agreement, by and between Dawson Geophysical Company and Veritex Community Bank, dated November 23, 2018 (Filed With SEC on February 21, 2019)

Sixteenth Amendment to Amended and Restated Loan and Security Agreement, by and between Dawson Geophysical Company and Veritex Community Bank, dated September 13, 2018 (Filed With SEC on September 18, 2018)

Fifteenth Amendment to Amended and Restated Loan and Security Agreement, by and between Dawson Geophysical Company and Veritex Community Bank, dated June 30, 2018 (Filed With SEC on July 2, 2018)

Fourteenth Amendment to Amended and Restated Loan and Security Agreement, by and between Dawson Geophysical Company and Veritex Community Bank, dated November 23, 2017 (Filed With SEC on July 2, 2018)

Letter Agreement dated May 4, 2018 between James K. Brata and the Company (Filed With SEC on May 4, 2018)

Letter Agreement dated May 4, 2018 between Stephen C. Jumper and the Company (Filed With SEC on May 4, 2018)

Letter Agreement dated May 4, 2018 between James W. Thomas and the Company (Filed With SEC on May 4, 2018)

Letter Agreement dated May 4, 2018 between C. Ray Tobias and the Company (Filed With SEC on May 4, 2018)

THIRTEENTH AMENDMENT TO AMENDED AND RESTATED LOAN AND SECURITY AGREEMENT (Filed With SEC on June 30, 2017)

TWELFTH AMENDMENT TO AMENDED AND RESTATED LOAN AND SECURITY AGREEMENT AND AMENDMENT TO LETTER OF CREDIT NOTE (Filed With SEC on June 30, 2017)

ELEVENTH AMENDMENT TO AMENDED AND RESTATED LOAN AND SECURITY AGREEMENT (Filed With SEC on October 6, 2016)

TENTH AMENDMENT TO AMENDED AND RESTATED LOAN AND SECURITY AGREEMENT (Filed With SEC on March 16, 2016)

NINTH AMENDMENT TO AMENDED AND RESTATED LOAN AND SECURITY AGREEMENT (Filed With SEC on July 2, 2015)

Amended and Restated 2006 Stock Awards Plan of Dawson Geophysical Company (formerly known as TGC Industries, Inc.) (Filed With SEC on June 5, 2015)

AMENDED AND RESTATED DAWSON GEOPHYSICAL COMPANY 2006 STOCK AND PERFORMANCE INCENTIVE PLAN (Filed With SEC on February 11, 2015)

AGREEMENT AND PLAN OF MERGER among TGC INDUSTRIES, INC., RIPTIDE ACQUISITION CORP. and DAWSON GEOPHYSICAL COMPANY Dated as of October 8, 2014 (Filed With SEC on October 9, 2014)

RESTATED INDEMNIFICATION AGREEMENT (Filed With SEC on October 9, 2014)

EMPLOYMENT AGREEMENT (Filed With SEC on October 9, 2014)

FIRST AMENDMENT TO NONQUALIFIED STOCK OPTION AGREEMENT (Filed With SEC on October 9, 2014)

EIGHTH AMENDMENT TO AMENDED AND RESTATED LOAN AND SECURITY AGREEMENT AND AMENDMENT TO AMENDED AND RESTATED PROMISSORY NOTE (Filed With SEC on September 19, 2014)

EMPLOYMENT AGREEMENT (Filed With SEC on March 13, 2014)

SIXTH AMENDMENT TO AMENDED AND RESTATED LOAN AND SECURITY AGREEMENT (Filed With SEC on November 8, 2013)

SEVENTH AMENDMENT TO AMENDED AND RESTATED LOAN AND SECURITY AGREEMENT AND AMENDMENT TO AMENDED AND RESTATED PROMISSORY NOTE (Filed With SEC on November 8, 2013)

THE EXECUTIVE NONQUALIFIED EXCESS PLAN ADOPTION AGREEMENT (Filed With SEC on January 8, 2013)

THE EXECUTIVE NONQUALIFIED EXCESS PLAN PLAN DOCUMENT (Filed With SEC on January 8, 2013)

FOURTH AMENDMENT TO AMENDED AND RESTATED LOAN AND SECURITY AGREEMENT (Filed With SEC on November 9, 2012)

FIFTH AMENDMENT TO AMENDED AND RESTATED LOAN AND SECURITY AGREEMENT (Filed With SEC on November 9, 2012)

Employment Contract TGC INDUSTRIES, INC. (as Amended and Restated effective March 1, 2012) (Filed With SEC on April 18, 2012)

THIRD AMENDMENT TO AMENDED AND RESTATED LOAN AND SECURITY AGREEMENT AND AMENDMENT TO AMENDED AND RESTATED PROMISSORY NOTE (Filed With SEC on September 22, 2011)

AMENDMENT TO AGREEMENT AND PLAN OF MERGER (Filed With SEC on August 24, 2011)

AMENDMENT TO AMENDED AND RESTATED LOAN AND SECURITY AGREEMENT AND AMENDED AND RESTATED PROMISSORY NOTE (Filed With SEC on November 8, 2010)

AMENDMENT NO. 1 to 2006 STOCK AWARDS PLAN of TGC INDUSTRIES, INC. (Filed With SEC on June 17, 2010)

STOCK PURCHASE AGREEMENT by and among TGC INDUSTRIES, INC. (and/or its nominee) as the Purchaser EAGLE GEOPHYSICAL, INC. and EAGLE GEOPHYSICAL ONSHORE, INC. as Sellers Dated as of... (Filed With SEC on October 19, 2009)

AMENDEDAND RESTATED LOAN AND SECURITY AGREEMENT (Filed With SEC on September 22, 2009)

AMENDED AND RESTATED PROMISSORY NOTE $5,000,000.00 SEPTEMBER 16, 2009 (Filed With SEC on September 22, 2009)

INDEMNIFICATION AGREEMENT (TGC INDUSTRIES, INC.) (Filed With SEC on October 22, 2008)

PROMISSORY NOTE (Filed With SEC on September 19, 2008)

COMMERCIAL SECURITY AGREEMENT (Filed With SEC on September 19, 2008)

BUSINESS LOAN AGREEMENT (ASSET BASED) (Filed With SEC on September 19, 2008)

EmploymentContract TGCINDUSTRIES, INC. (as Amendedand Restated effective September 11,2008) (Filed With SEC on September 17, 2008)

Certificate of Occupancy Commercial Lease (Filed With SEC on August 8, 2008)

WARRANT REPURCHASE AGREEMENT (2004Series C2 Warrants) (Filed With SEC on November 7, 2007)

PROMISSORY NOTE (Filed With SEC on September 28, 2007)

COMMERCIAL SECURITY AGREEMENT (Filed With SEC on September 28, 2007)

BUSINESSLOAN AGREEMENT (ASSET BASED) (Filed With SEC on September 28, 2007)

AMENDMENT NUMBER TWO to EMPLOYMENT CONTRACT TGC INDUSTRIES, INC. (Whitener) (Filed With SEC on May 10, 2007)

[TGCLetterhead] (Filed With SEC on October 18, 2005)

5,500,000 Shares of Common Stock ($.01 par value) TGC INDUSTRIES, INC. UNDERWRITING AGREEMENT (Filed With SEC on October 7, 2005)

PROMISSORYNOTE September 19, 2005 (Date) (Filed With SEC on September 30, 2005)

CORPORATE RESOLUTION TO BORROW / GRANTCOLLATERAL (Filed With SEC on September 20, 2005)

BUSINESSLOAN AGREEMENT (Filed With SEC on September 20, 2005)

PROMISSORY NOTE 9205 (Date) (Filed With SEC on September 20, 2005)

AMENDMENT (Filed With SEC on September 20, 2005)

PROMISSORY NOTE 91205 (Date) (Filed With SEC on September 20, 2005)

AMENDMENT (Filed With SEC on September 20, 2005)

Employment Contract TGC INDUSTRIES, INC. (Whitener) (Filed With SEC on August 31, 2005)

INDEMNIFICATIONAGREEMENT (TGCIndustries, Inc.) (Filed With SEC on August 31, 2005)

COMMERCIALLEASE AGREEMENT (Filed With SEC on August 31, 2005)

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DAWSON GEOPHYSICAL CO Contracts & Agreements