Sec Form 4/A Filing - Wilks Brothers, LLC @ DAWSON GEOPHYSICAL CO - 2023-06-12

FORM 4/A Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person Wilks Brothers, LLC 2. Issuer Name and Ticker or Trading Symbol DAWSON GEOPHYSICAL CO [ DWSN] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director X __ 10% Owner _____ Officer (give title below) _____ Other (specify below) (Last) (First) (Middle) 17018 INTERSTATE 20 3. Date of Earliest Transaction (MM/DD/YY) 06/12/2023 (Street) CISCO, TX76437 4. If Amendment, Date Original Filed (MM/DD/YY) 06/12/2023 6. Individual or Joint/Group Filing (Check Applicable Line) _____ Form filed by One Reporting Person __ X __ Form filed by More than One Reporting Person (City) (State) (Zip)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned 1.Title of Security (Instr. 3) 2. Transaction Date (MM/DD/YY) 2A. Deemed Execution Date, if any (MM/DD/YY) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4) Code V Amount (A) or (D) Price Class A common stock, par value $0.01 per share 06/12/2023 P 4,166 A $ 2.17 ( 1 ) 18,833,997 ( 2 ) ( 4 ) I ( 2 ) ( 3 ) See Footnote ( 3 ) Class A common stock, par value $0.01 per share 06/12/2023 P 4,438 A $ 2.19 18,838,435 ( 2 ) ( 4 ) I ( 2 ) ( 3 ) See Footnote ( 3 )

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned ( e.g. , puts, calls, warrants, options, convertible securities) 1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (MM/DD/YY) 3A. Deemed Execution Date, if any (MM/DD/YY) 4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4, and 5) 6. Date Exercisable and Expiration Date (MM/DD/YY) 7. Title and Amount of Underlying Securities (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4) Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other Wilks Brothers, LLC 17018 INTERSTATE 20 CISCO, TX76437 X WB Acquisitions Inc. 17018 INTERSTATE 20 CISCO, TX76437 X Wilks Dan H. 17018 INTERSTATE 20 CISCO, TX76437 X Wilks Staci 17018 INTERSTATE 20 CISCO, TX76437 X Wilks Farris 17018 INTERSTATE 20 CISCO, TX76437 X Signatures /s/ [Javier Rocha, Attorney-in-Fact] 06/16/2023 Signature of Reporting Person Date

Explanation of Responses:

( 1 )The reported price in Column 4 is a weighted average purchase price. These shares were purchased in multiple transactions at prices ranging from $2.06 to $2.39 per share. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the range set forth in this footnote. ( 2 )Consists of (i) 3,282,472 directly owned by Reporting Party, (ii) 15,547,010 shares of the Issuer's Common Stock directly owned by WB Acquisitions, (iii) 349 shares of the Issuer's Common Stock directly owned by Staci Wilks, and the shares reported on this Form 4. ( 3 )Wilks Brothers, LLC ("Wilks Brothers") is a manager-managed limited liability company, managed by Dan H. Wilks and Farris Wilks. WB Acquisitions, Inc. ("WB Acquisitions") is a subsidiary of Wilks Brothers. Dan H. Wilks and Farris Wilks are brothers and may be deemed to indirectly beneficially own the shares of the Issuer's Common Stock directly owned by each of Wilks Brothers and WB Acquisitions. Dan H. Wilks and Staci Wilks are husband and wife and share the same household, and Dan H. Wilks may be deemed to indirectly beneficially own the shares of the Issuer's Common Stock directly owned by Staci Wilks. Each Reporting Person disclaims beneficial ownership of all equity securities reported herein except to the extent of its respective pecuniary interest therein, and the filing of this Form 4 shall not be construed as an admission that any such Reporting Person is the beneficial owner of any equity securities covered by this Form 4. ( 4 )On June 12, 2023, the Reporting Persons filed a Form 4 which inadvertently excluded 1,188,235 shares of common stock received by Wilks Brothers, LLC from the Issuer as consideration for the sale of assets under that certain Asset Purchase Agreement, dated March 24, 2023 and as disclosed in the Issuer's current Report on Form 8-K filed with the SEC on March 24, 2023 (the "Asset Sale"). See Reporting Persons' Form 4 filed in connection with such 1,188,235 shares received by Wilks Brothers, LLC.

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.

* If the form is filed by more than one reporting person, see Instruction 4(b)(v).

** Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).

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