Wilks Farris

SEC source: 0001641794-26-000002 · form4-06262026_050631.xml · nonDerivative · entry 1

Wilks Farris · CIK 0001641794 · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnotes

Disclosed balance after: 1,071,454

F1 · kind: Shares of the Issuer's Class A common stock were acquired by Wilks Brothers, LLC, a Texas limited Liability company ("Wilks Brothers") pursuant to the terms of the Shared Services Agreement, dated May 3, 2022, between Wilks Brothers and ProFrac Holdings II, LLC, an indirect wholly-owned subsidiary of the Issuer ("PFII"), as amended by a Letter Agreement dated June 30, 2025 (as amended, the "Services Agreement").

F2 · shares: Under the Services Agreement, PFII was required to pay in arrears upon satisfaction of an approval condition, a quarterly services fee of $1,750,000 in shares of the Issuer's Class A Common Stock, until a specified liquidity condition is satisfied. The number of shares issued each quarter is determined by dividing the applicable services fee by the 10-day volume-weighted average price of the Issuer's Common Stock at the end of the quarter. With respect to the Q4 2025 issuance, the liquidity condition was satisfied during the quarter, resulting in a prorated services fee of $1,557,692.31 for the partial period.

F3 · ownership.nature: Reflects shares of the Issuer's Class A common stock held directly by Wilks Brothers. Farris C. Wilks, as 50% owner and a Manager of Wilks Brothers, may be deemed to exercise voting and investment power over the shares of the Issuer's Class A common stock directly owned by Wilks Brothers, and therefore may be deemed to beneficially own such shares.

F4 · ownership.nature: Each Reporting Person disclaims beneficial ownership of all equity securities reported herein except to the extent of such person's 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.

SEC source: 0001315863-26-000007 · form4.xml · nonDerivative · entry 1

Wilks Farris · CIK 0001641794 · Director · 10% owner

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnotes (4)(5).

Disclosed balance after: Not disclosed

F1 · kind: On December 31, 2025, WB Acquisitions Inc. ("WBA"), a wholly-owned subsidiary of Wilks Brothers, LLC ("Parent"), adopted the Plan of Complete Liquidation and Dissolution of WBA (the "Dissolution Plan"), which Dissolution Plan was approved by Parent, as the sole stockholder of WBA (the "Dissolution"). In connection with the Dissolution, WBA and Parent entered into the Distribution Agreement by and between WBA and Parent, pursuant to which WBA agreed to distribute all of the 15,547,010 shares of common stock, par value $0.01 per share, of the Issuer ("Common Stock") directly held by WBA to Parent in an in-kind distribution for no additional consideration and no change in pecuniary interest, effective as of December 31, 2025 (the "Distribution").

F2 · kind: (Continued from footnote 1) Immediately following the Distribution, WBA beneficially owned 0 shares of Common Stock and Parent directly owned 24,658,746 shares of Common Stock. Except for the change in Parent's beneficial ownership from indirect to direct with respect to 15,547,010 shares of Common Stock distributed by WBA to Parent, Parent's aggregate beneficial ownership of Common Stock remained unchanged immediately following the Distribution. This Form 4 represents an exit filing for WBA, following which WBA will cease to be a reporting person for purposes of Section 16 of the Securities Exchange Act of 1934, as amended.

F1 · price: On December 31, 2025, WB Acquisitions Inc. ("WBA"), a wholly-owned subsidiary of Wilks Brothers, LLC ("Parent"), adopted the Plan of Complete Liquidation and Dissolution of WBA (the "Dissolution Plan"), which Dissolution Plan was approved by Parent, as the sole stockholder of WBA (the "Dissolution"). In connection with the Dissolution, WBA and Parent entered into the Distribution Agreement by and between WBA and Parent, pursuant to which WBA agreed to distribute all of the 15,547,010 shares of common stock, par value $0.01 per share, of the Issuer ("Common Stock") directly held by WBA to Parent in an in-kind distribution for no additional consideration and no change in pecuniary interest, effective as of December 31, 2025 (the "Distribution").

F2 · price: (Continued from footnote 1) Immediately following the Distribution, WBA beneficially owned 0 shares of Common Stock and Parent directly owned 24,658,746 shares of Common Stock. Except for the change in Parent's beneficial ownership from indirect to direct with respect to 15,547,010 shares of Common Stock distributed by WBA to Parent, Parent's aggregate beneficial ownership of Common Stock remained unchanged immediately following the Distribution. This Form 4 represents an exit filing for WBA, following which WBA will cease to be a reporting person for purposes of Section 16 of the Securities Exchange Act of 1934, as amended.

F3 · valueOwnedAfter: Consists of 24,658,746 directly owned by Parent immediately following the Distribution. Staci Wilks owns an additional 349 shares of Common Stock, which are directly owned by Ms. Wilks.

F4 · ownership.direct: Parent is a manager-managed limited liability company, managed by Dan H. Wilks and Farris Wilks, each of whom may be deemed to have beneficial ownership of Common Stock directly held by Parent. WBA is a wholly-owned subsidiary of Parent. WBA will be dissolved promptly following the adoption of the Dissolution Plan. Dan H. Wilks and Farris Wilks are brothers; Dan H. Wilks and Staci Wilks are husband and wife and share the same household.

F5 · ownership.direct: 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.

SEC source: 0001104659-25-102113 · form4-10242025_071024.xml · nonDerivative · entry 2

Wilks Farris · CIK 0001641794 · 10% owner

Wilks Jo Ann · CIK 0001928401 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 4,096,512

F1 · kind: Shares of the Issuer's Class A common stock held directly by Farjo Holdings, LP, a Texas limited partnership ("Farjo Holdings") were disposed of as a pro rata distribution in-kind to its partners, for no consideration, pursuant to the terms of the Agreement of Limited Partnership of Farjo Holdings, dated March 3, 2011, as subsequently amended. Farris C. Wilks and Jo Ann Wilks, as limited partners of Farjo Holdings, acquired shares for no consideration pursuant to this distribution.

SEC source: 0001104659-25-102113 · form4-10242025_071024.xml · nonDerivative · entry 1

Wilks Farris · CIK 0001641794 · 10% owner

Wilks Jo Ann · CIK 0001928401 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnotes

Disclosed balance after: 7

F1 · kind: Shares of the Issuer's Class A common stock held directly by Farjo Holdings, LP, a Texas limited partnership ("Farjo Holdings") were disposed of as a pro rata distribution in-kind to its partners, for no consideration, pursuant to the terms of the Agreement of Limited Partnership of Farjo Holdings, dated March 3, 2011, as subsequently amended. Farris C. Wilks and Jo Ann Wilks, as limited partners of Farjo Holdings, acquired shares for no consideration pursuant to this distribution.

F2 · ownership.nature: Reflects 7 shares of the Issuer's Class A common stock held directly by FARJO Holdings. The General Partner of FARJO Holdings is FARJO Management, LLC, a Texas limited liability company ("FARJO Management"). FARJO Management, as General Partner of FARJO Holdings, has exclusive voting and investment control over the shares of the Issuer's Class A common stock held by FARJO Holdings, and therefore may be deemed to beneficially own such shares. Farris C. Wilks, as sole manager of FARJO Management, may be deemed to exercise voting and investment power over the shares of the Issuer's Class A common stock directly owned by FARJO Holdings, and therefore may be deemed to beneficially own such shares.

F3 · ownership.nature: Each Reporting Person disclaims beneficial ownership of all equity securities reported herein except to the extent of such person's 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.

SEC source: 0001415889-25-022166 · form4-08182025_070858.xml · nonDerivative · entry 1

Wilks Farris · CIK 0001641794 · 10% owner

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 3,665,132

SEC source: 0001415889-25-007882 · form4-03122025_090321.xml · derivative · entry 1

Wilks Farris · CIK 0001641794 · 10% owner

Wilks Jo Ann · CIK 0001928401 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnotes

Disclosed balance after: 19,000

Underlying: Class A common stock, par value $0.01 per share · 55,204 shares

Expires not disclosed

F1 · derivative.exercise_price: The Conversion Price may be adjusted from time to time in accordance with the Certificate of Designation of Series A Redeemable Convertible Preferred Stock, Exh. 3.1 to the Issuer's Form 8-K filed on October 2, 2023 ("CoD").

F2 · derivative.expiration_date: Issuer's Series A convertible preferred stock has no expiration date as it is not redeemable at the option of holder and does not automatically convert into common stock on a specified date.

F3 · derivative.underlying_shares: In accordance with the CoD, following the first anniversary of the Issuance Date, each holder of Series A redeemable convertible preferred stock shall have the option from time to time to convert all or a portion of holder's shares of Series A redeemable convertible preferred stock into Class A common stock, par value $0.01 per share, at a Conversion Ratio equal to the quotient of (i) the Liquidation Preference as of the date of the conversion, which initially shall equal the original issue price per share of $1,000.00 and subsequently be adjusted as the result of any PIK Accrual and as otherwise set forth in the CoD, and (ii) the then applicable Conversion Price. The amount of underlying securities reported has been determined utilizing the Conversion Ratio calculated as of the transaction date.

F4 · ownership.nature: Reflects 19,000 shares of the Issuer's Class A redeemable convertible preferred stock held directly by FARJO Holdings, LP, a Texas limited partnership ("FARJO Holdings"). The General Partner of FARJO Holdings is FARJO Management, LLC, a Texas limited liability company ("FARJO Management"). FARJO Management, as General Partner of FARJO Holdings, has exclusive investment control over the shares of the Issuer's Class A redeemable convertible preferred stock held by FARJO Holdings, and therefore may be deemed to beneficially own such shares. Farris Wilks and Jo Ann Wilks are the members of FARJO Management.

F5 · ownership.nature: The Reporting Person disclaims beneficial ownership of all equity securities reported herein except to the extent of his respective pecuniary interest therein, and the filing of this Form 4 shall not be construed as an admission that the Reporting Person is the beneficial owner of any equity securities covered by this Form 4.

SEC source: 0001415889-25-006023 · form4-02282025_090225.xml · nonDerivative · entry 1

Wilks Farris · CIK 0001641794 · 10% owner

Wilks Jo Ann · CIK 0001928401 · 10% owner

Farris & Jo Ann Wilks 2022 Family Trust · CIK 0001928013 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnotes

Disclosed balance after: 1,316,534

F1 · ownership.nature: Reflects 1,316,534 shares of the Issuer's Class A common stock held directly by FARJO Holdings, LP, a Texas limited partnership ("FARJO Holdings"). The General Partner of FARJO Holdings is FARJO Management, LLC, a Texas limited liability company ("FARJO Management"). FARJO Management, as General Partner of FARJO Holdings, has exclusive voting and investment control over the shares of the Issuer's Class A common stock held by FARJO Holdings, and therefore may be deemed to beneficially own such shares. Farris C. Wilks, as sole manager of FARJO Management, may be deemed to exercise voting and investment power over the shares of the Issuer's Class A common stock directly owned by FARJO Holdings, and therefore may be deemed to beneficially own such shares.

F2 · ownership.nature: Each Reporting Person disclaims beneficial ownership of all equity securities reported herein except to the extent of such person's 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.

SEC source: 0001415889-25-015341 · form4a-06032025_070636.xml · nonDerivative · entry 2

Wilks Farris · CIK 0001641794 · 10% owner

Wilks Jo Ann · CIK 0001928401 · 10% owner

Farris & Jo Ann Wilks 2022 Family Trust · CIK 0001928013 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 1,165,132

SEC source: 0000950170-24-063575 · ownership.xml · nonDerivative · entry 1

Wilks Farris · CIK 0001641794 · 10% owner

Wilks Jo Ann · CIK 0001928401 · 10% owner

Farris & Jo Ann Wilks 2022 Family Trust · CIK 0001928013 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnotes

Disclosed balance after: 58,541,444

F1 · price: This transaction was a purchase from a private seller in which THRC Holdings and the private seller agreed to a sale price based upon January 2023 share prices.

F2 · ownership.nature: Farris and Jo Ann Wilks 2022 Family Trust, a Texas irrevocable trust ("Farris Trust"), directly holds the securities of the Issuer. The number of shares owned by the Farris Trust is subject to change based on an appraisal. Farris C. Wilks serves as a trustee of the Farris Trust and, in such capacity has voting and dispository power over the shares of the Issuer's Class A common stock owned by such trust, and therefore may be deemed to beneficially own such shares. Jo Ann Wilks serves as a trustee of the Farris Trust and, in such capacity has dispository power over the shares of the Issuer's Class A common stock owned by such trust, and therefore may be deemed to beneficially own such shares.

F4 · ownership.nature: Each Reporting Person disclaims beneficial ownership of all equity securities reported herein except to the extent of such person's 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.

SEC source: 0000950170-24-066801 · ownership.xml · nonDerivative · entry 1

Wilks Farris · CIK 0001641794 · 10% owner

Wilks Jo Ann · CIK 0001928401 · 10% owner

Farris & Jo Ann Wilks 2022 Family Trust · CIK 0001928013 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnotes

Disclosed balance after: 58,571,444

F1 · price: This transaction was a purchase from a private seller in which THRC Holdings and the private seller agreed to a sale price based upon January 2023 share prices.

F2 · ownership.nature: Farris and Jo Ann Wilks 2022 Family Trust, a Texas irrevocable trust ("Farris Trust"), directly holds the securities of the Issuer. The number of shares owned by the Farris Trust is subject to change based on an appraisal. Farris C. Wilks serves as a trustee of the Farris Trust and, in such capacity has voting and dispository power over the shares of the Issuer's Class A common stock owned by such trust, and therefore may be deemed to beneficially own such shares. Jo Ann Wilks serves as a trustee of the Farris Trust and, in such capacity has dispository power over the shares of the Issuer's Class A common stock owned by such trust, and therefore may be deemed to beneficially own such shares.

F4 · ownership.nature: Each Reporting Person disclaims beneficial ownership of all equity securities reported herein except to the extent of such person's 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.

SEC source: 0001209191-23-053918 · doc4.xml · nonDerivative · entry 1

Wilks Farris · CIK 0001641794 · 10% owner

Wilks Jo Ann · CIK 0001928401 · 10% owner

Farris & Jo Ann Wilks 2022 Family Trust · CIK 0001928013 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnote

Disclosed balance after: 981,187

F1 · ownership.nature: Reflects shares of the Issuer's Class A common stock held directly by FARJO Holdings, LP, a Texas limited partnership ("FARJO Holdings"). The General Partner of FARJO Holdings is FARJO Management, LLC, a Texas limited liability company ("FARJO Management"). FARJO Management, as General Partner of FARJO Holdings, has exclusive voting and investment control over the shares of the Issuer's Class A common stock held by FARJO Holdings, and therefore may be deemed to beneficially own such shares. Farris C. Wilks, as sole manager of FARJO Management, may be deemed to exercise voting and investment power over the shares of the Issuer's Class A common stock directly owned by FARJO Holdings, and therefore may be deemed to beneficially own such shares.

F2 · ownership.nature: Each Reporting Person disclaims beneficial ownership of all equity securities reported herein except to the extent of such person's 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.

SEC source: 0001209191-23-051604 · doc4.xml · derivative · entry 1

Wilks Farris · CIK 0001641794 · 10% owner

Wilks Jo Ann · CIK 0001928401 · 10% owner

Farris & Jo Ann Wilks 2022 Family Trust · CIK 0001928013 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See footnotes

Disclosed balance after: 20,000

Underlying: Class A common stock, par value $0.01 per share · 1,000,000 shares

Expires not disclosed

F1 · derivative.exercise_price: The Conversion Price may be adjusted from time to time in accordance with the Certificate of Designation of Series A Redeemable Convertible Preferred Stock, Exh. 3.1 to the Issuer's Form 8-K filed on October 2, 2023 ("CoD").

F2 · derivative.expiration_date: Issuer's Series A convertible preferred stock has no expiration date as it is not redeemable at the option of holder and does not automatically convert into common stock on a specified date.

F3 · derivative.underlying_shares: In accordance with the CoD, following the first anniversary of the Issuance Date, each holder of Series A redeemable convertible preferred stock shall have the option from time to time to convert all or a portion of holders shares of Series A redeemable convertible preferred stock into Class A common stock, par value $0.01 per share, at a Conversion Ratio equal to the quotient of (i) the Liquidation Preference as of the date of the conversion, which initially shall equal the original issue price per share of $1,000.00 and subsequently be adjusted as the result of any PIK Accrual and as otherwise set forth in the CoD, and (ii) the then applicable Conversion Price. The amount of underlying securities reported has been determined utilizing the Conversion Ratio calculated as of the transaction date.

F4 · ownership.nature: Reflects 20,000 shares of the Issuer's Class A redeemable convertible preferred stock held directly by FARJO Holdings, LP, a Texas limited partnership ("FARJO Holdings"). The General Partner of FARJO Holdings is FARJO Management, LLC, a Texas limited liability company ("FARJO Management"). FARJO Management, as General Partner of FARJO Holdings, has exclusive investment control over the shares of the Issuer's Class A redeemable convertible preferred stock held by FARJO Holdings, and therefore may be deemed to beneficially own such shares. Farris C. Wilks, as sole manager of FARJO Management, may be deemed to exercise voting and investment power over the shares of the Issuer's Class A redeemable convertible preferred stock directly owned by FARJO Holdings, and therefore may be deemed to beneficially own such shares.

F5 · ownership.nature: 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.

SEC source: 0000899243-23-020059 · doc4.xml · derivative · entry 2

Wilks Brothers, LLC · CIK 0001662888 · Director · 10% owner

WB Acquisitions Inc. · CIK 0001891025 · 10% owner

Wilks Dan H. · CIK 0001641792 · 10% owner

Wilks Staci · CIK 0001641796 · 10% owner

Wilks Farris · CIK 0001641794 · 10% owner

Krylov Sergei · CIK 0001594869 · Director

Wilks Matthew · CIK 0001696102 · Director

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 24,609,095

Underlying: Class A common stock, par value $0.01 per share · 5,811,765 shares

Expires 2024-06-30

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · kind: On September 13, 2023, Dawson Geophysical Company ("Dawson") held a virtual special meeting of its stockholders. At the Special Meeting, Dawson's stockholders voted and approved the issuance of 5,811,765 shares of Common Stock of Issuer to Wilks Brothers, LLC ("Wilks Brothers") upon conversion of $9,880,000.50 in principal amount of the Convertible Note dated March 24, 2023 between Dawson and Wilks at a conversion price of $1.70 per share. Upon such approval, the Convertible Note automatically converted in full into the Conversion Shares upon such approval.

F1 · price: On September 13, 2023, Dawson Geophysical Company ("Dawson") held a virtual special meeting of its stockholders. At the Special Meeting, Dawson's stockholders voted and approved the issuance of 5,811,765 shares of Common Stock of Issuer to Wilks Brothers, LLC ("Wilks Brothers") upon conversion of $9,880,000.50 in principal amount of the Convertible Note dated March 24, 2023 between Dawson and Wilks at a conversion price of $1.70 per share. Upon such approval, the Convertible Note automatically converted in full into the Conversion Shares upon such approval.

F2 · balance_after: Consists of (i) 9,111,736 directly owned by Wilks, (ii) 15,547,010 shares of the Issuer's Common Stock directly owned by WB Acquisitions, and (iii) 349 shares of the Issuer's Common Stock directly owned by Staci Wilks.

F2 · ownership.direct: Consists of (i) 9,111,736 directly owned by Wilks, (ii) 15,547,010 shares of the Issuer's Common Stock directly owned by WB Acquisitions, and (iii) 349 shares of the Issuer's Common Stock directly owned by Staci Wilks.

F3 · ownership.direct: Wilks Brothers is a manager-managed limited liability company, managed by Dan H. Wilks and Farris Wilks. WB Acquisitions, Inc. ("WB Acquisitions") is an affiliate of Wilks Brothers. Dan H. Wilks and Farris Wilks are brothers; Dan H. Wilks and Staci Wilks are husband and wife and share the same household; Matthew D. Wilks is the Director of the Issuer and VP - Investments of Wilks Brothers; and Sergei Krylov, is the Director of the Issuer and Chief Financial Officer of Wilks Brothers. Matthew D. Wilks and Sergei Krylov were each inadvertently excluded in prior filings and have been added as Reporting Persons. Each of the foregoing are reporting persons on a Schedule 13D/A (as amended from time to time, the "13D") filed with the SEC on June 29, 2023 (such Reporting Persons on the 13D, collectively, the "13D Group") and may be deemed to beneficially own the shares of the Issuer's Common Stock owned by other members of the 13D Group. (Continued in footnote 4)

F3 · ownership.nature: Wilks Brothers is a manager-managed limited liability company, managed by Dan H. Wilks and Farris Wilks. WB Acquisitions, Inc. ("WB Acquisitions") is an affiliate of Wilks Brothers. Dan H. Wilks and Farris Wilks are brothers; Dan H. Wilks and Staci Wilks are husband and wife and share the same household; Matthew D. Wilks is the Director of the Issuer and VP - Investments of Wilks Brothers; and Sergei Krylov, is the Director of the Issuer and Chief Financial Officer of Wilks Brothers. Matthew D. Wilks and Sergei Krylov were each inadvertently excluded in prior filings and have been added as Reporting Persons. Each of the foregoing are reporting persons on a Schedule 13D/A (as amended from time to time, the "13D") filed with the SEC on June 29, 2023 (such Reporting Persons on the 13D, collectively, the "13D Group") and may be deemed to beneficially own the shares of the Issuer's Common Stock owned by other members of the 13D Group. (Continued in footnote 4)

F4 · ownership.nature: (Continued from footnote 3) 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.

SEC source: 0000899243-23-020059 · doc4.xml · nonDerivative · entry 1

Wilks Brothers, LLC · CIK 0001662888 · Director · 10% owner

WB Acquisitions Inc. · CIK 0001891025 · 10% owner

Wilks Dan H. · CIK 0001641792 · 10% owner

Wilks Staci · CIK 0001641796 · 10% owner

Wilks Farris · CIK 0001641794 · 10% owner

Krylov Sergei · CIK 0001594869 · Director

Wilks Matthew · CIK 0001696102 · Director

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 24,609,095

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · kind: On September 13, 2023, Dawson Geophysical Company ("Dawson") held a virtual special meeting of its stockholders. At the Special Meeting, Dawson's stockholders voted and approved the issuance of 5,811,765 shares of Common Stock of Issuer to Wilks Brothers, LLC ("Wilks Brothers") upon conversion of $9,880,000.50 in principal amount of the Convertible Note dated March 24, 2023 between Dawson and Wilks at a conversion price of $1.70 per share. Upon such approval, the Convertible Note automatically converted in full into the Conversion Shares upon such approval.

F2 · balance_after: Consists of (i) 9,111,736 directly owned by Wilks, (ii) 15,547,010 shares of the Issuer's Common Stock directly owned by WB Acquisitions, and (iii) 349 shares of the Issuer's Common Stock directly owned by Staci Wilks.

F2 · ownership.direct: Consists of (i) 9,111,736 directly owned by Wilks, (ii) 15,547,010 shares of the Issuer's Common Stock directly owned by WB Acquisitions, and (iii) 349 shares of the Issuer's Common Stock directly owned by Staci Wilks.

F3 · ownership.direct: Wilks Brothers is a manager-managed limited liability company, managed by Dan H. Wilks and Farris Wilks. WB Acquisitions, Inc. ("WB Acquisitions") is an affiliate of Wilks Brothers. Dan H. Wilks and Farris Wilks are brothers; Dan H. Wilks and Staci Wilks are husband and wife and share the same household; Matthew D. Wilks is the Director of the Issuer and VP - Investments of Wilks Brothers; and Sergei Krylov, is the Director of the Issuer and Chief Financial Officer of Wilks Brothers. Matthew D. Wilks and Sergei Krylov were each inadvertently excluded in prior filings and have been added as Reporting Persons. Each of the foregoing are reporting persons on a Schedule 13D/A (as amended from time to time, the "13D") filed with the SEC on June 29, 2023 (such Reporting Persons on the 13D, collectively, the "13D Group") and may be deemed to beneficially own the shares of the Issuer's Common Stock owned by other members of the 13D Group. (Continued in footnote 4)

F3 · ownership.nature: Wilks Brothers is a manager-managed limited liability company, managed by Dan H. Wilks and Farris Wilks. WB Acquisitions, Inc. ("WB Acquisitions") is an affiliate of Wilks Brothers. Dan H. Wilks and Farris Wilks are brothers; Dan H. Wilks and Staci Wilks are husband and wife and share the same household; Matthew D. Wilks is the Director of the Issuer and VP - Investments of Wilks Brothers; and Sergei Krylov, is the Director of the Issuer and Chief Financial Officer of Wilks Brothers. Matthew D. Wilks and Sergei Krylov were each inadvertently excluded in prior filings and have been added as Reporting Persons. Each of the foregoing are reporting persons on a Schedule 13D/A (as amended from time to time, the "13D") filed with the SEC on June 29, 2023 (such Reporting Persons on the 13D, collectively, the "13D Group") and may be deemed to beneficially own the shares of the Issuer's Common Stock owned by other members of the 13D Group. (Continued in footnote 4)

F4 · ownership.nature: (Continued from footnote 3) 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.

SEC source: 0000899243-23-015840 · doc4.xml · nonDerivative · entry 1

Wilks Brothers, LLC · CIK 0001662888 · 10% owner

WB Acquisitions Inc. · CIK 0001891025 · 10% owner

Wilks Dan H. · CIK 0001641792 · 10% owner

Wilks Staci · CIK 0001641796 · 10% owner

Wilks Farris · CIK 0001641794 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 18,847,330

F1 · price: The reported price in Column 4 is a weighted average purchase price. 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.

F2 · balance_after: Consists of (i) 3,299,971 directly owned by Reporting Party, (ii) 15,547,010 shares of the Issuer's Common Stock directly owned by WB Acquisitions, and (iii) 349 shares of the Issuer's Common Stock directly owned by Staci Wilks.

F2 · ownership.direct: Consists of (i) 3,299,971 directly owned by Reporting Party, (ii) 15,547,010 shares of the Issuer's Common Stock directly owned by WB Acquisitions, and (iii) 349 shares of the Issuer's Common Stock directly owned by Staci Wilks.

F3 · ownership.direct: 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.

F3 · ownership.nature: 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.

SEC source: 0000899243-23-016727 · doc4a.xml · nonDerivative · entry 1

Wilks Brothers, LLC · CIK 0001662888 · 10% owner

WB Acquisitions Inc. · CIK 0001891025 · 10% owner

Wilks Dan H. · CIK 0001641792 · 10% owner

Wilks Staci · CIK 0001641796 · 10% owner

Wilks Farris · CIK 0001641794 · 10% owner

Krylov Sergei · CIK 0001594869 · Director

Wilks Matthew · CIK 0001696102 · Director

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 18,847,330

F1 · price: The reported price in Column 4 is a weighted average purchase price. The Reporting Persons undertakes to provide to the Issuer, any security holder of the Issuer, or the staff of the Securities and Exchange Commission ("SEC"), upon request, full information regarding the number of shares purchased at each separate price.

F2 · balance_after: Consists of (i) 3,299,971 directly owned by Wilks Brothers, LLC ("Wilks Brothers"), (ii) 15,547,010 shares of the Issuer's Common Stock directly owned by WB Acquisitions, and (iii) 349 shares of the Issuer's Common Stock directly owned by Staci Wilks.

F2 · ownership.direct: Consists of (i) 3,299,971 directly owned by Wilks Brothers, LLC ("Wilks Brothers"), (ii) 15,547,010 shares of the Issuer's Common Stock directly owned by WB Acquisitions, and (iii) 349 shares of the Issuer's Common Stock directly owned by Staci Wilks.

F3 · ownership.direct: 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; Dan H. Wilks and Staci Wilks are husband and wife and share the same household; Matthew D. Wilks is the Director of the Issuer and VP - Investments of Wilks Brothers; and Sergei Krylov, is the Director of the Issuer and Chief Financial Officer of Wilks Brothers. Matthew D. Wilks and Sergei Krylov were each inadvertently excluded in prior filings and have been added as Reporting Persons. Each of the foregoing are reporting persons on a Schedule 13D/A (as amended from time to time, the "13D") filed with the SEC on June 29, 2023 (such Reporting Persons on the 13D, collectively, the "13D Group") and may be deemed to beneficially own the shares of the Issuer's Common Stock owned by other members of the 13D Group.

F4 · ownership.direct: (Continued from Footnote 3) 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.

F3 · ownership.nature: 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; Dan H. Wilks and Staci Wilks are husband and wife and share the same household; Matthew D. Wilks is the Director of the Issuer and VP - Investments of Wilks Brothers; and Sergei Krylov, is the Director of the Issuer and Chief Financial Officer of Wilks Brothers. Matthew D. Wilks and Sergei Krylov were each inadvertently excluded in prior filings and have been added as Reporting Persons. Each of the foregoing are reporting persons on a Schedule 13D/A (as amended from time to time, the "13D") filed with the SEC on June 29, 2023 (such Reporting Persons on the 13D, collectively, the "13D Group") and may be deemed to beneficially own the shares of the Issuer's Common Stock owned by other members of the 13D Group.

F4 · ownership.nature: (Continued from Footnote 3) 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.

SEC source: 0000899243-23-015553 · doc4.xml · nonDerivative · entry 2

Wilks Brothers, LLC · CIK 0001662888 · 10% owner

WB Acquisitions Inc. · CIK 0001891025 · 10% owner

Wilks Dan H. · CIK 0001641792 · 10% owner

Wilks Staci · CIK 0001641796 · 10% owner

Wilks Farris · CIK 0001641794 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 17,650,200

F2 · balance_after: Consists of (i) 2,094,237 directly owned by Reporting Party, (ii) 15,547,010 shares of the Issuer's Common Stock directly owned by WB Acquisitions and (iii) 349 shares of the Issuer's Common Stock directly owned by Staci Wilks.

F2 · ownership.direct: Consists of (i) 2,094,237 directly owned by Reporting Party, (ii) 15,547,010 shares of the Issuer's Common Stock directly owned by WB Acquisitions and (iii) 349 shares of the Issuer's Common Stock directly owned by Staci Wilks.

F3 · ownership.direct: 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.

F3 · ownership.nature: 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.

SEC source: 0000899243-23-015553 · doc4.xml · nonDerivative · entry 1

Wilks Brothers, LLC · CIK 0001662888 · 10% owner

WB Acquisitions Inc. · CIK 0001891025 · 10% owner

Wilks Dan H. · CIK 0001641792 · 10% owner

Wilks Staci · CIK 0001641796 · 10% owner

Wilks Farris · CIK 0001641794 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 17,645,762

F1 · price: 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.

F2 · balance_after: Consists of (i) 2,094,237 directly owned by Reporting Party, (ii) 15,547,010 shares of the Issuer's Common Stock directly owned by WB Acquisitions and (iii) 349 shares of the Issuer's Common Stock directly owned by Staci Wilks.

F2 · ownership.direct: Consists of (i) 2,094,237 directly owned by Reporting Party, (ii) 15,547,010 shares of the Issuer's Common Stock directly owned by WB Acquisitions and (iii) 349 shares of the Issuer's Common Stock directly owned by Staci Wilks.

F3 · ownership.direct: 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.

F3 · ownership.nature: 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.

SEC source: 0000899243-23-015834 · doc4a.xml · nonDerivative · entry 2

Wilks Brothers, LLC · CIK 0001662888 · 10% owner

WB Acquisitions Inc. · CIK 0001891025 · 10% owner

Wilks Dan H. · CIK 0001641792 · 10% owner

Wilks Staci · CIK 0001641796 · 10% owner

Wilks Farris · CIK 0001641794 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 18,838,435

F2 · balance_after: 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.

F4 · balance_after: 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.

F2 · ownership.direct: 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.

F3 · ownership.direct: 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.

F3 · ownership.nature: 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.

SEC source: 0000899243-23-015834 · doc4a.xml · nonDerivative · entry 1

Wilks Brothers, LLC · CIK 0001662888 · 10% owner

WB Acquisitions Inc. · CIK 0001891025 · 10% owner

Wilks Dan H. · CIK 0001641792 · 10% owner

Wilks Staci · CIK 0001641796 · 10% owner

Wilks Farris · CIK 0001641794 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 18,833,997

F1 · price: 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.

F2 · balance_after: 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.

F4 · balance_after: 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.

F2 · ownership.direct: 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.

F3 · ownership.direct: 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.

F3 · ownership.nature: 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.

SEC source: 0000899243-23-011704 · doc4.xml · derivative · entry 5

Wilks Farris · CIK 0001641794 · 10% owner

Farris & Jo Ann Wilks 2022 Family Trust · CIK 0001928013 · 10% owner

Wilks Jo Ann · CIK 0001928401 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnotes

Disclosed balance after: 0

Underlying: Class A common stock, par value $0.01 per share · 47,508,329 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F5 · derivative.exercise_price: Each share of the Issuer's Class B common stock has no economic rights but entitles its holder to one vote on all matters to be voted on by shareholders generally. At the request of the holder, each ProFrac LLC Unit may be coupled with a share of the Issuer's Class B common stock and redeemed for, at the Issuer's election and subject to certain restrictions in the ProFrac LLC Agreement, newly-issued shares of the Issuer's Class A common stock on a one-for-one basis or for a cash payment to be determined pursuant to the ProFrac LLC Agreement for each ProFrac LLC Unit redeemed. The ProFrac LLC Units do not expire.

F5 · derivative.exercise_date: Each share of the Issuer's Class B common stock has no economic rights but entitles its holder to one vote on all matters to be voted on by shareholders generally. At the request of the holder, each ProFrac LLC Unit may be coupled with a share of the Issuer's Class B common stock and redeemed for, at the Issuer's election and subject to certain restrictions in the ProFrac LLC Agreement, newly-issued shares of the Issuer's Class A common stock on a one-for-one basis or for a cash payment to be determined pursuant to the ProFrac LLC Agreement for each ProFrac LLC Unit redeemed. The ProFrac LLC Units do not expire.

F5 · derivative.expiration_date: Each share of the Issuer's Class B common stock has no economic rights but entitles its holder to one vote on all matters to be voted on by shareholders generally. At the request of the holder, each ProFrac LLC Unit may be coupled with a share of the Issuer's Class B common stock and redeemed for, at the Issuer's election and subject to certain restrictions in the ProFrac LLC Agreement, newly-issued shares of the Issuer's Class A common stock on a one-for-one basis or for a cash payment to be determined pursuant to the ProFrac LLC Agreement for each ProFrac LLC Unit redeemed. The ProFrac LLC Units do not expire.

F5 · ownership.direct: Each share of the Issuer's Class B common stock has no economic rights but entitles its holder to one vote on all matters to be voted on by shareholders generally. At the request of the holder, each ProFrac LLC Unit may be coupled with a share of the Issuer's Class B common stock and redeemed for, at the Issuer's election and subject to certain restrictions in the ProFrac LLC Agreement, newly-issued shares of the Issuer's Class A common stock on a one-for-one basis or for a cash payment to be determined pursuant to the ProFrac LLC Agreement for each ProFrac LLC Unit redeemed. The ProFrac LLC Units do not expire.

F2 · ownership.nature: Farris and Jo Ann Wilks 2022 Family Trust, a Texas irrevocable trust ("Farris Trust"), directly holds the securities of the Issuer. The number of shares owned by the Farris Trust is subject to change based on an appraisal. Farris C. Wilks serves as a trustee of the Farris Trust and, in such capacity has voting and dispository power over the shares of the Issuer's Class A common stock owned by such trust, and therefore may be deemed to beneficially own such shares. Jo Ann Wilks serves as a trustee of the Farris Trust and, in such capacity has dispository power over the shares of the Issuer's Class A common stock owned by such trust, and therefore may be deemed to beneficially own such shares.

F6 · ownership.nature: Each Reporting Person disclaims beneficial ownership of all equity securities reported herein except to the extent of such person's 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.

SEC source: 0000899243-23-011704 · doc4.xml · nonDerivative · entry 4

Wilks Farris · CIK 0001641794 · 10% owner

Farris & Jo Ann Wilks 2022 Family Trust · CIK 0001928013 · 10% owner

Wilks Jo Ann · CIK 0001928401 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnotes

Disclosed balance after: 0

F4 · kind: Represents the surrender to the Issuer of 47,508,329 shares of the Issuer's Class B common stock, pursuant to the ProFrac LLC Agreement, in connection with the exchange of ProFrac LLC Units for shares of the Issuer's Class A common stock.

F4 · price: Represents the surrender to the Issuer of 47,508,329 shares of the Issuer's Class B common stock, pursuant to the ProFrac LLC Agreement, in connection with the exchange of ProFrac LLC Units for shares of the Issuer's Class A common stock.

F5 · ownership.direct: Each share of the Issuer's Class B common stock has no economic rights but entitles its holder to one vote on all matters to be voted on by shareholders generally. At the request of the holder, each ProFrac LLC Unit may be coupled with a share of the Issuer's Class B common stock and redeemed for, at the Issuer's election and subject to certain restrictions in the ProFrac LLC Agreement, newly-issued shares of the Issuer's Class A common stock on a one-for-one basis or for a cash payment to be determined pursuant to the ProFrac LLC Agreement for each ProFrac LLC Unit redeemed. The ProFrac LLC Units do not expire.

F2 · ownership.nature: Farris and Jo Ann Wilks 2022 Family Trust, a Texas irrevocable trust ("Farris Trust"), directly holds the securities of the Issuer. The number of shares owned by the Farris Trust is subject to change based on an appraisal. Farris C. Wilks serves as a trustee of the Farris Trust and, in such capacity has voting and dispository power over the shares of the Issuer's Class A common stock owned by such trust, and therefore may be deemed to beneficially own such shares. Jo Ann Wilks serves as a trustee of the Farris Trust and, in such capacity has dispository power over the shares of the Issuer's Class A common stock owned by such trust, and therefore may be deemed to beneficially own such shares.

F6 · ownership.nature: Each Reporting Person disclaims beneficial ownership of all equity securities reported herein except to the extent of such person's 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.

SEC source: 0000899243-23-011704 · doc4.xml · nonDerivative · entry 1

Wilks Farris · CIK 0001641794 · 10% owner

Farris & Jo Ann Wilks 2022 Family Trust · CIK 0001928013 · 10% owner

Wilks Jo Ann · CIK 0001928401 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnotes

Disclosed balance after: 58,241,444

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: Units of ProFrac Holdings, LLC, a Texas limited liability company ("ProFrac LLC"), which represent limited liability company interests of ProFrac LLC and a corresponding number of shares of the Issuer's Class B common stock, were exchanged on a one-for-one basis for shares of the Issuer's Class A common stock, pursuant to the Third Amended and Restated Limited Liability Company Agreement of ProFrac LLC (the "ProFrac LLC Agreement"). See footnote 4 below.

F2 · ownership.nature: Farris and Jo Ann Wilks 2022 Family Trust, a Texas irrevocable trust ("Farris Trust"), directly holds the securities of the Issuer. The number of shares owned by the Farris Trust is subject to change based on an appraisal. Farris C. Wilks serves as a trustee of the Farris Trust and, in such capacity has voting and dispository power over the shares of the Issuer's Class A common stock owned by such trust, and therefore may be deemed to beneficially own such shares. Jo Ann Wilks serves as a trustee of the Farris Trust and, in such capacity has dispository power over the shares of the Issuer's Class A common stock owned by such trust, and therefore may be deemed to beneficially own such shares.

F6 · ownership.nature: Each Reporting Person disclaims beneficial ownership of all equity securities reported herein except to the extent of such person's 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.

SEC source: 0000899243-23-015829 · doc4.xml · nonDerivative · entry 1

Wilks Brothers, LLC · CIK 0001662888 · 10% owner

WB Acquisitions Inc. · CIK 0001891025 · 10% owner

Wilks Dan H. · CIK 0001641792 · 10% owner

Wilks Staci · CIK 0001641796 · 10% owner

Wilks Farris · CIK 0001641794 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: No plan indicated

Ownership: Indirect · See Footnote

Disclosed balance after: 18,829,831

F1 · price: On March 24, 2023, Wilks Brothers, LLC received 1,188,235 shares of common stock 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"), by and among the Issuer, Wilks Brothers, LLC and the other parties set forth in the Asset Purchase Agreement. The shares of common stock received pursuant to the Asset Sale were inadvertently excluded in prior filings.

F2 · balance_after: 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 and (iii) 349 shares of the Issuer's Common Stock directly owned by Staci Wilks.

F2 · ownership.direct: 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 and (iii) 349 shares of the Issuer's Common Stock directly owned by Staci Wilks.

F3 · ownership.direct: 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.

F3 · ownership.nature: 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.

SEC source: 0000899243-22-034989 · doc4.xml · nonDerivative · entry 1

Wilks Farris · CIK 0001641794 · 10% owner

Farris & Jo Ann Wilks 2022 Family Trust · CIK 0001928013 · 10% owner

Wilks Jo Ann · CIK 0001928401 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 826,376

F1 · kind: Pursuant to the Agreement and Plan of Merger ("Merger Agreement") dated June 21, 2022, by and among Issuer, U.S. Well Services, Inc., a Delaware Corporation ("USWS") and Thunderclap Merger Sub, Inc., a Delaware Corporation, on November 1, 2022 (the "Effective Date"), each issued and outstanding share of USWS Class A common stock was converted into the right to receive 0.3366 shares of the Issuer's Class A common stock.

F2 · price: Received in exchange for 2,455,070 shares of USWS Class A common stock in connection with the above-referenced merger. On the Effective Date, the closing price of the Issuer's Class A common stock was $22.08 per share, and the closing price of USWS' Class A common stock was $7.41 per share.

SEC source: 0000899243-22-035430 · doc4.xml · derivative · entry 3

Wilks Farris · CIK 0001641794 · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Class A Common Stock · 2,455,070 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Reflects the conversion of 16.0% Convertible Senior Secured (Third Lien) PIK Notes of the Issuer into a number of shares of Class A Common Stock of the Issuer equal to the quotient of (i) the aggregate principal amount, plus accrued and unpaid interest, owing under such note through July 9, 2022 ($17,971,111.95), and (ii) $7.32 pursuant to the Agreement and Plan of Merger by and among the Issuer, ProFrac Holding Corp. and Thunderclap Merger Sub I, Inc., dated as of June 21, 2022 (the "Merger Agreement").

F1 · price: Reflects the conversion of 16.0% Convertible Senior Secured (Third Lien) PIK Notes of the Issuer into a number of shares of Class A Common Stock of the Issuer equal to the quotient of (i) the aggregate principal amount, plus accrued and unpaid interest, owing under such note through July 9, 2022 ($17,971,111.95), and (ii) $7.32 pursuant to the Agreement and Plan of Merger by and among the Issuer, ProFrac Holding Corp. and Thunderclap Merger Sub I, Inc., dated as of June 21, 2022 (the "Merger Agreement").

F1 · derivative.exercise_date: Reflects the conversion of 16.0% Convertible Senior Secured (Third Lien) PIK Notes of the Issuer into a number of shares of Class A Common Stock of the Issuer equal to the quotient of (i) the aggregate principal amount, plus accrued and unpaid interest, owing under such note through July 9, 2022 ($17,971,111.95), and (ii) $7.32 pursuant to the Agreement and Plan of Merger by and among the Issuer, ProFrac Holding Corp. and Thunderclap Merger Sub I, Inc., dated as of June 21, 2022 (the "Merger Agreement").

F1 · derivative.expiration_date: Reflects the conversion of 16.0% Convertible Senior Secured (Third Lien) PIK Notes of the Issuer into a number of shares of Class A Common Stock of the Issuer equal to the quotient of (i) the aggregate principal amount, plus accrued and unpaid interest, owing under such note through July 9, 2022 ($17,971,111.95), and (ii) $7.32 pursuant to the Agreement and Plan of Merger by and among the Issuer, ProFrac Holding Corp. and Thunderclap Merger Sub I, Inc., dated as of June 21, 2022 (the "Merger Agreement").

F2 · ownership.direct: Reflects the conversion pursuant to the Merger Agreement of shares of Class A Common Stock of the Issuer into 0.3366 shares of Class A Common Stock of ProFrac Holding Corp. ("PFHC Shares"). The closing price of PFHC Shares on November 1, 2022, was $22.08 per share.

SEC source: 0000899243-22-035430 · doc4.xml · nonDerivative · entry 2

Wilks Farris · CIK 0001641794 · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

F2 · shares: Reflects the conversion pursuant to the Merger Agreement of shares of Class A Common Stock of the Issuer into 0.3366 shares of Class A Common Stock of ProFrac Holding Corp. ("PFHC Shares"). The closing price of PFHC Shares on November 1, 2022, was $22.08 per share.

F2 · price: Reflects the conversion pursuant to the Merger Agreement of shares of Class A Common Stock of the Issuer into 0.3366 shares of Class A Common Stock of ProFrac Holding Corp. ("PFHC Shares"). The closing price of PFHC Shares on November 1, 2022, was $22.08 per share.

SEC source: 0000899243-22-035430 · doc4.xml · nonDerivative · entry 1

Wilks Farris · CIK 0001641794 · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 2,455,070

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · shares: Reflects the conversion of 16.0% Convertible Senior Secured (Third Lien) PIK Notes of the Issuer into a number of shares of Class A Common Stock of the Issuer equal to the quotient of (i) the aggregate principal amount, plus accrued and unpaid interest, owing under such note through July 9, 2022 ($17,971,111.95), and (ii) $7.32 pursuant to the Agreement and Plan of Merger by and among the Issuer, ProFrac Holding Corp. and Thunderclap Merger Sub I, Inc., dated as of June 21, 2022 (the "Merger Agreement").

F1 · price: Reflects the conversion of 16.0% Convertible Senior Secured (Third Lien) PIK Notes of the Issuer into a number of shares of Class A Common Stock of the Issuer equal to the quotient of (i) the aggregate principal amount, plus accrued and unpaid interest, owing under such note through July 9, 2022 ($17,971,111.95), and (ii) $7.32 pursuant to the Agreement and Plan of Merger by and among the Issuer, ProFrac Holding Corp. and Thunderclap Merger Sub I, Inc., dated as of June 21, 2022 (the "Merger Agreement").

SEC source: 0000899243-22-018925 · doc4.xml · nonDerivative · entry 1

Wilks Farris · CIK 0001641794 · Director · 10% owner · Director by Deputization

Farris & Jo Ann Wilks 2022 Family Trust · CIK 0001928013 · Director · 10% owner · Director by Deputization

Wilks Jo Ann · CIK 0001928401 · Director · 10% owner · Director by Deputization

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Indirect · See Footnote

Disclosed balance after: 977,778

F1 · shares: Reflects shares of Class A common stock, par value $0.01 per share, acquired in connection with the Issuer's initial public offering, which closed on May 17, 2022.

F2 · ownership.nature: Reflects 977,778 shares of Class A common stock held directly by FARJO Holdings, LP ("FARJO Holdings"), a Texas limited partnership. The General Partner of FARJO Holdings is FARJO Management, LLC ("FARJO Management"), a Texas limited liability company. FARJO Management, as General Partner of FARJO Holdings, has exclusive voting and investment control over the shares of Class A common stock held by FARJO Holdings, and therefore may be deemed to beneficially own such shares. Farris C. Wilks, as sole manager of FARJO Management, may be deemed to exercise voting and investment power over the shares of the Issuer's Class A common stock directly owned by FARJO Holdings, and therefore may be deemed to beneficially own such shares.

SEC source: 0000899243-21-028382 · doc4.xml · derivative · entry 1

Wilks Farris · CIK 0001641794 · 10% owner

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: Not disclosed

Underlying: Class A Common Stock · 2,200,000 shares

Expires not disclosed

F1 · security: This Form 4 is being filed to report that, on July 12, 2021, the Reporting Person purchased an aggregate of $2,750,000 in principal amount of 16.0% Convertible Senior Secured (Third Lien) PIK Notes of the Issuer (the "Notes"), that are convertible into shares of Class A Common Stock, pursuant to a Note Purchase Agreement, dated June 24, 2021 (the "Note Purchase Agreement"). The Notes are convertible by the Reporting Person at any time prior to the payment in full of all outstanding principle and interest due under the Notes.

F2 · derivative.exercise_price: Subject to earlier conversion or redemption in accordance with their terms, the Notes will become due and payable on June 5, 2026 (the "Maturity Date") in a number of shares of Class A Common Stock, determined by dividing (a) the outstanding balance of the principal amount of the Notes (together with the accrued but unpaid interest on the Notes) as of the Maturity Date, by (b) the volume weighted average price of Class A Common Stock for the 20 trading day period immediately preceding the Maturity Date (or in such other manner as determined pursuant to the terms of the Note Purchase Agreement).

F3 · derivative.exercise_price: All or any portion of the Notes may be converted at the election of the holder thereof at any time into a number of shares of Class A Common Stock, determined by dividing (a) the outstanding balance of the principal amount of the Notes being converted (together with the accrued but unpaid interest thereon) as of the applicable conversion date, by (b) a conversion price of $1.25, which such conversion price is subject to certain anti-dilution adjustments in accordance with its terms.

F3 · price: All or any portion of the Notes may be converted at the election of the holder thereof at any time into a number of shares of Class A Common Stock, determined by dividing (a) the outstanding balance of the principal amount of the Notes being converted (together with the accrued but unpaid interest thereon) as of the applicable conversion date, by (b) a conversion price of $1.25, which such conversion price is subject to certain anti-dilution adjustments in accordance with its terms.

F3 · derivative.exercise_date: All or any portion of the Notes may be converted at the election of the holder thereof at any time into a number of shares of Class A Common Stock, determined by dividing (a) the outstanding balance of the principal amount of the Notes being converted (together with the accrued but unpaid interest thereon) as of the applicable conversion date, by (b) a conversion price of $1.25, which such conversion price is subject to certain anti-dilution adjustments in accordance with its terms.

F1 · derivative.expiration_date: This Form 4 is being filed to report that, on July 12, 2021, the Reporting Person purchased an aggregate of $2,750,000 in principal amount of 16.0% Convertible Senior Secured (Third Lien) PIK Notes of the Issuer (the "Notes"), that are convertible into shares of Class A Common Stock, pursuant to a Note Purchase Agreement, dated June 24, 2021 (the "Note Purchase Agreement"). The Notes are convertible by the Reporting Person at any time prior to the payment in full of all outstanding principle and interest due under the Notes.

F2 · derivative.expiration_date: Subject to earlier conversion or redemption in accordance with their terms, the Notes will become due and payable on June 5, 2026 (the "Maturity Date") in a number of shares of Class A Common Stock, determined by dividing (a) the outstanding balance of the principal amount of the Notes (together with the accrued but unpaid interest on the Notes) as of the Maturity Date, by (b) the volume weighted average price of Class A Common Stock for the 20 trading day period immediately preceding the Maturity Date (or in such other manner as determined pursuant to the terms of the Note Purchase Agreement).

F4 · derivative.underlying_shares: This number represents the number of shares of Class A Common Stock issuable upon conversion of the Notes if the holder thereof elects to convert the Notes based on the principal amount of the Notes and the conversion price applicable to the Notes.

SEC source: 0000899243-18-018647 · doc4.xml · derivative · entry 4

Wilks Brothers, LLC · CIK 0001662888 · 10% owner · See Remarks

Wilks Dan H. · CIK 0001641792 · 10% owner

Wilks Staci · CIK 0001641796 · 10% owner

Wilks Farris · CIK 0001641794 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 393,000 shares

Expires 2018-06-15

F1 · security: The Reporting Person bought-to-close 6,275 put options referencing 627,500 shares of Common Stock.

F1 · balance_after: The Reporting Person bought-to-close 6,275 put options referencing 627,500 shares of Common Stock.

SEC source: 0000899243-18-018647 · doc4.xml · derivative · entry 3

Wilks Brothers, LLC · CIK 0001662888 · 10% owner · See Remarks

Wilks Dan H. · CIK 0001641792 · 10% owner

Wilks Staci · CIK 0001641796 · 10% owner

Wilks Farris · CIK 0001641794 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 58,500 shares

Expires 2018-06-15

F1 · security: The Reporting Person bought-to-close 6,275 put options referencing 627,500 shares of Common Stock.

F1 · balance_after: The Reporting Person bought-to-close 6,275 put options referencing 627,500 shares of Common Stock.

SEC source: 0000899243-18-018647 · doc4.xml · derivative · entry 2

Wilks Brothers, LLC · CIK 0001662888 · 10% owner · See Remarks

Wilks Dan H. · CIK 0001641792 · 10% owner

Wilks Staci · CIK 0001641796 · 10% owner

Wilks Farris · CIK 0001641794 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 106,000 shares

Expires 2018-06-15

F1 · security: The Reporting Person bought-to-close 6,275 put options referencing 627,500 shares of Common Stock.

F1 · balance_after: The Reporting Person bought-to-close 6,275 put options referencing 627,500 shares of Common Stock.

SEC source: 0000899243-18-018647 · doc4.xml · derivative · entry 1

Wilks Brothers, LLC · CIK 0001662888 · 10% owner · See Remarks

Wilks Dan H. · CIK 0001641792 · 10% owner

Wilks Staci · CIK 0001641796 · 10% owner

Wilks Farris · CIK 0001641794 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 70,000 shares

Expires 2018-06-15

F1 · security: The Reporting Person bought-to-close 6,275 put options referencing 627,500 shares of Common Stock.

F1 · balance_after: The Reporting Person bought-to-close 6,275 put options referencing 627,500 shares of Common Stock.

SEC source: 0000899243-18-001012 · doc4.xml · nonDerivative · entry 1

Wilks Brothers, LLC · CIK 0001662888 · 10% owner · See Remarks

Wilks Dan H. · CIK 0001641792 · 10% owner

Wilks Staci · CIK 0001641796 · 10% owner

Wilks Farris · CIK 0001641794 · 10% owner

SDW Investments, LLC · CIK 0001589906 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 37,799,413

F1 · shares: The purchases reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by Wilks Brothers, LLC on May 5, 2017.

F2 · ownership.direct: See Remarks.

F3 · ownership.direct: These shares are owned directly by Wilks Brothers, LLC.

SEC source: 0000899243-18-000945 · doc4.xml · nonDerivative · entry 2

Wilks Brothers, LLC · CIK 0001662888 · 10% owner · See Remarks

Wilks Dan H. · CIK 0001641792 · 10% owner

Wilks Staci · CIK 0001641796 · 10% owner

Wilks Farris · CIK 0001641794 · 10% owner

SDW Investments, LLC · CIK 0001589906 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 37,599,413

F1 · shares: The purchases reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by Wilks Brothers, LLC on May 5, 2017.

F2 · ownership.direct: See Remarks.

F3 · ownership.direct: These shares are owned directly by Wilks Brothers, LLC.

SEC source: 0000899243-18-000945 · doc4.xml · nonDerivative · entry 1

Wilks Brothers, LLC · CIK 0001662888 · 10% owner · See Remarks

Wilks Dan H. · CIK 0001641792 · 10% owner

Wilks Staci · CIK 0001641796 · 10% owner

Wilks Farris · CIK 0001641794 · 10% owner

SDW Investments, LLC · CIK 0001589906 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 37,399,413

F1 · shares: The purchases reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by Wilks Brothers, LLC on May 5, 2017.

F2 · ownership.direct: See Remarks.

F3 · ownership.direct: These shares are owned directly by Wilks Brothers, LLC.

SEC source: 0000899243-18-000614 · doc4.xml · nonDerivative · entry 3

Wilks Brothers, LLC · CIK 0001662888 · 10% owner · See Remarks

Wilks Dan H. · CIK 0001641792 · 10% owner

Wilks Staci · CIK 0001641796 · 10% owner

Wilks Farris · CIK 0001641794 · 10% owner

SDW Investments, LLC · CIK 0001589906 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 37,149,413

F1 · shares: The purchases reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by Wilks Brothers, LLC on May 5, 2017.

F2 · ownership.direct: See Remarks.

F3 · ownership.direct: These shares are owned directly by Wilks Brothers, LLC.

SEC source: 0000899243-18-000614 · doc4.xml · nonDerivative · entry 2

Wilks Brothers, LLC · CIK 0001662888 · 10% owner · See Remarks

Wilks Dan H. · CIK 0001641792 · 10% owner

Wilks Staci · CIK 0001641796 · 10% owner

Wilks Farris · CIK 0001641794 · 10% owner

SDW Investments, LLC · CIK 0001589906 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 37,049,413

F1 · shares: The purchases reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by Wilks Brothers, LLC on May 5, 2017.

F2 · ownership.direct: See Remarks.

F3 · ownership.direct: These shares are owned directly by Wilks Brothers, LLC.

SEC source: 0000899243-18-000614 · doc4.xml · nonDerivative · entry 1

Wilks Brothers, LLC · CIK 0001662888 · 10% owner · See Remarks

Wilks Dan H. · CIK 0001641792 · 10% owner

Wilks Staci · CIK 0001641796 · 10% owner

Wilks Farris · CIK 0001641794 · 10% owner

SDW Investments, LLC · CIK 0001589906 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 36,949,413

F1 · shares: The purchases reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by Wilks Brothers, LLC on May 5, 2017.

F2 · ownership.direct: See Remarks.

F3 · ownership.direct: These shares are owned directly by Wilks Brothers, LLC.

SEC source: 0000899243-18-000165 · doc4.xml · nonDerivative · entry 1

Wilks Brothers, LLC · CIK 0001662888 · 10% owner · See Remarks

Wilks Dan H. · CIK 0001641792 · 10% owner

Wilks Staci · CIK 0001641796 · 10% owner

Wilks Farris · CIK 0001641794 · 10% owner

SDW Investments, LLC · CIK 0001589906 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 7,440,300

F1 · shares: The purchases reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by Wilks Brothers, LLC on May 5, 2017.

F2 · ownership.direct: See Remarks.

F3 · ownership.direct: These shares are owned directly by SDW Investments, LLC.

SEC source: 0000899243-17-029696 · doc4.xml · nonDerivative · entry 2

Wilks Brothers, LLC · CIK 0001662888 · 10% owner · See Remarks

Wilks Dan H. · CIK 0001641792 · 10% owner

Wilks Staci · CIK 0001641796 · 10% owner

Wilks Farris · CIK 0001641794 · 10% owner

SDW Investments, LLC · CIK 0001589906 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 7,290,300

F1 · shares: The purchases reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by Wilks Brothers, LLC on May 5, 2017.

F2 · ownership.direct: See Remarks.

F3 · ownership.direct: These shares are owned directly by SDW Investments, LLC.

SEC source: 0000899243-17-029696 · doc4.xml · nonDerivative · entry 1

Wilks Brothers, LLC · CIK 0001662888 · 10% owner · See Remarks

Wilks Dan H. · CIK 0001641792 · 10% owner

Wilks Staci · CIK 0001641796 · 10% owner

Wilks Farris · CIK 0001641794 · 10% owner

SDW Investments, LLC · CIK 0001589906 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 7,090,300

F1 · shares: The purchases reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by Wilks Brothers, LLC on May 5, 2017.

F2 · ownership.direct: See Remarks.

F3 · ownership.direct: These shares are owned directly by SDW Investments, LLC.

SEC source: 0000899243-17-029442 · doc4.xml · nonDerivative · entry 3

Wilks Brothers, LLC · CIK 0001662888 · 10% owner · See Remarks

Wilks Dan H. · CIK 0001641792 · 10% owner

Wilks Staci · CIK 0001641796 · 10% owner

Wilks Farris · CIK 0001641794 · 10% owner

SDW Investments, LLC · CIK 0001589906 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 6,940,300

F1 · shares: The purchases reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by Wilks Brothers, LLC on May 5, 2017.

F3 · ownership.direct: See Remarks.

F4 · ownership.direct: These shares are owned directly by SDW Investments, LLC. .

SEC source: 0000899243-17-029442 · doc4.xml · nonDerivative · entry 2

Wilks Brothers, LLC · CIK 0001662888 · 10% owner · See Remarks

Wilks Dan H. · CIK 0001641792 · 10% owner

Wilks Staci · CIK 0001641796 · 10% owner

Wilks Farris · CIK 0001641794 · 10% owner

SDW Investments, LLC · CIK 0001589906 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 36,799,413

F1 · shares: The purchases reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by Wilks Brothers, LLC on May 5, 2017.

F2 · ownership.direct: These shares are owned directly by Wilks Brothers, LLC.

F3 · ownership.direct: See Remarks.

SEC source: 0000899243-17-029442 · doc4.xml · nonDerivative · entry 1

Wilks Brothers, LLC · CIK 0001662888 · 10% owner · See Remarks

Wilks Dan H. · CIK 0001641792 · 10% owner

Wilks Staci · CIK 0001641796 · 10% owner

Wilks Farris · CIK 0001641794 · 10% owner

SDW Investments, LLC · CIK 0001589906 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 6,690,300

F1 · shares: The purchases reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by Wilks Brothers, LLC on May 5, 2017.

F3 · ownership.direct: See Remarks.

F4 · ownership.direct: These shares are owned directly by SDW Investments, LLC. .

SEC source: 0000899243-17-029215 · doc4.xml · nonDerivative · entry 3

Wilks Brothers, LLC · CIK 0001662888 · 10% owner · See Remarks

Wilks Dan H. · CIK 0001641792 · 10% owner

Wilks Staci · CIK 0001641796 · 10% owner

Wilks Farris · CIK 0001641794 · 10% owner

SDW Investments, LLC · CIK 0001589906 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 6,490,300

F1 · shares: The purchases reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by Wilks Brothers, LLC on May 5, 2017.

F3 · ownership.direct: See Remarks.

F4 · ownership.direct: These shares are owned directly by SDW Investments, LLC.

SEC source: 0000899243-17-029215 · doc4.xml · nonDerivative · entry 2

Wilks Brothers, LLC · CIK 0001662888 · 10% owner · See Remarks

Wilks Dan H. · CIK 0001641792 · 10% owner

Wilks Staci · CIK 0001641796 · 10% owner

Wilks Farris · CIK 0001641794 · 10% owner

SDW Investments, LLC · CIK 0001589906 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 6,340,300

F1 · shares: The purchases reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by Wilks Brothers, LLC on May 5, 2017.

F3 · ownership.direct: See Remarks.

F4 · ownership.direct: These shares are owned directly by SDW Investments, LLC.

SEC source: 0000899243-17-029748 · doc4.xml · derivative · entry 5

Wilks Brothers, LLC · CIK 0001662888 · 10% owner · See Remarks

Wilks Dan H. · CIK 0001641792 · 10% owner

Wilks Staci · CIK 0001641796 · 10% owner

Wilks Farris · CIK 0001641794 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock · 200,000 shares

Expires 2017-12-15

SEC source: 0000899243-17-029215 · doc4.xml · nonDerivative · entry 1

Wilks Brothers, LLC · CIK 0001662888 · 10% owner · See Remarks

Wilks Dan H. · CIK 0001641792 · 10% owner

Wilks Staci · CIK 0001641796 · 10% owner

Wilks Farris · CIK 0001641794 · 10% owner

SDW Investments, LLC · CIK 0001589906 · 10% owner

Joint disclosure: these amounts are not allocated separately to each reporting owner.

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 36,649,413

F1 · shares: The purchases reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by Wilks Brothers, LLC on May 5, 2017.

F2 · ownership.direct: These shares are owned directly by Wilks Brothers, LLC.

F3 · ownership.direct: See Remarks.