TUSK

Represents an in-kind distribution from MEH SUB LLC, an entity managed by Wexford Capital LP, that does not involve (i) a purchase or a sale of securities or (ii) any additional consideration.

Represents an in-kind distribution from MEH SUB LLC, an entity managed by Wexford Capital LP, that does not involve (i) a purchase or a sale of securities or (ii) any additional consideration.

Represents an in-kind distribution from MEH SUB LLC, an entity managed by Wexford Capital LP, that does not involve (i) a purchase or a sale of securities or (ii) any additional consideration.

Represents an in-kind distribution from MEH SUB LLC, an entity managed by Wexford Capital LP, that does not involve (i) a purchase or a sale of securities or (ii) any additional consideration.

Represents the common stock of the Issuer held in the aggregate by Wexford Spectrum Trading Limited ("WST"), Wexford Catalyst Trading Limited ("WCT") and Wexford Focused Trading Limited ("WFT", and together with WST and WCT, the "Wexford Entities").

Wexford Capital may, by reason of its status as (i) sub-advisor of each of WST and WCT and (ii) investment manager of WFT be deemed to own beneficially the securities held by the Wexford Entities. Wexford GP LLC ("Wexford GP") may, as the General Partner of Wexford Capital, be deemed to own beneficially the securities held by the Wexford Entities. Each of Charles E. Davidson ("Davidson") and Joseph M. Jacobs ("Jacobs", and together with the Wexford Entities, Wexford Capital, Wexford GP and Davidson, the "Reporting Persons") may, by reason of his status as a controlling person of Wexford GP, be deemed to own beneficially the securities held by the Wexford Entities.

Each of Wexford Capital, Wexford GP, Davidson and Jacobs share the power to vote and to dispose of the securities held by the Wexford Entities. Each of Wexford Capital, Wexford GP, Davidson and Jacobs disclaim beneficial ownership of the securities held by the Wexford Entities and this report shall not be deemed as an admission that they are the beneficial owners of such securities, except to the extent of any pecuniary interests therein. The Reporting Persons may be deemed to be a director and officer of the Issuer by virtue of Paul Jacobi, an employee of Wexford Capital, serving as a director and officer of the Issuer.

Represents an in-kind distribution from MEH SUB that does not involve (i) a purchase or a sale of securities or (ii) any additional consideration.

Represents the common stock of the Issuer held in the aggregate by Wexford Spectrum Trading Limited ("WST"), Wexford Catalyst Trading Limited ("WCT") and Wexford Focused Trading Limited ("WFT", and together with WST and WCT, the "Wexford Entities").

Wexford Capital may, by reason of its status as (i) sub-advisor of each of WST and WCT and (ii) investment manager of WFT be deemed to own beneficially the securities held by the Wexford Entities. Wexford GP LLC ("Wexford GP") may, as the General Partner of Wexford Capital, be deemed to own beneficially the securities held by the Wexford Entities. Each of Charles E. Davidson ("Davidson") and Joseph M. Jacobs ("Jacobs", and together with the Wexford Entities, Wexford Capital, Wexford GP and Davidson, the "Reporting Persons") may, by reason of his status as a controlling person of Wexford GP, be deemed to own beneficially the securities held by the Wexford Entities.

Each of Wexford Capital, Wexford GP, Davidson and Jacobs share the power to vote and to dispose of the securities held by the Wexford Entities. Each of Wexford Capital, Wexford GP, Davidson and Jacobs disclaim beneficial ownership of the securities held by the Wexford Entities and this report shall not be deemed as an admission that they are the beneficial owners of such securities, except to the extent of any pecuniary interests therein. The Reporting Persons may be deemed to be a director and officer of the Issuer by virtue of Paul Jacobi, an employee of Wexford Capital, serving as a director and officer of the Issuer.

Represents an in-kind distribution from MEH SUB LLC, an entity managed by Wexford Capital LP, that does not involve (i) a purchase or a sale of securities or (ii) any additional consideration.

Represents the common stock of the Issuer held by Amron Holdings LLC ("Amron Holdings").

Arthur Amron may, by reason of his status as a controlling person of Amron Holdings, be deemed to own beneficially the securities held by Amron Holdings. Mr. Amron holds the power to vote and to dispose of the securities held by Amron Holdings.

Represents an in-kind distribution from MEH SUB LLC, an entity managed by Wexford Capital LP, that does not involve (i) a purchase or a sale of securities or (ii) any additional consideration.

Represents the common stock of the Issuer held by CD Holding Company, LLC ("CD Holdings").

Charles E. Davidson may, by reason of his status as a controlling person of CD Holdings, be deemed to own beneficially the securities held by CD Holdings. Mr. Davidson holds the power to vote and to dispose of the securities held by CD Holdings.

Represents an in-kind distribution from MEH SUB LLC ("MEH SUB"), an entity managed by Wexford Capital LP ("Wexford Capital"), as payment of fees and expenses owed to Wexford Capital related to its performance of investment management services.

The price reported in Column 4 is a weighted average purchase price. These shares were purchased in multiple transactions at prices within a range. The reporting person undertakes to provide to Mammoth Energy Services, Inc., any security holder of Mammoth Energy Services, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price.

The price reported in Column 4 is a weighted average purchase price. These shares were purchased in multiple transactions at prices within a range. The reporting person undertakes to provide to Mammoth Energy Services, Inc., any security holder of Mammoth Energy Services, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price.

The price reported in Column 4 is a weighted average purchase price. These shares were purchased in multiple transactions at prices within a range. The reporting person undertakes to provide to Mammoth Energy Services, Inc., any security holder of Mammoth Energy Services, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price.

The price reported in Column 4 is a weighted average purchase price. These shares were purchased in multiple transactions at prices within a range. The reporting person undertakes to provide to Mammoth Energy Services, Inc., any security holder of Mammoth Energy Services, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price.

The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $2.47 per share to $2.55 per share, inclusive. The reporting person undertakes to provide to Mammoth Energy Services, Inc., any security holder of Mammoth Energy Services, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote.

The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $3.46 per share to $3.47 per share, inclusive. The reporting person undertakes to provide to Mammoth Energy Services, Inc., any security holder of Mammoth Energy Services, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote.

The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $3.42 per share to $3.44 per share, inclusive. The reporting person undertakes to provide to Mammoth Energy Services, Inc., any security holder of Mammoth Energy Services, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote.

The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $3.66 per share to $3.71 per share, inclusive. The reporting person undertakes to provide to Mammoth Energy Services, Inc., any security holder of Mammoth Energy Services, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote.

The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $3.89 per share to $3.91 per share, inclusive. The reporting person undertakes to provide to Mammoth Energy Services, Inc., any security holder of Mammoth Energy Services, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote.

These securities are restricted stock units that were granted under the issuer's equity incentive plan, representing an annual non-employee director grant. These securities will vest on the earlier of June 12, 2025 and the date of the issuer's 2025 Annual Meeting of Stockholders. Each restricted stock unit represents a contingent right to receive one share of common stock, par value $0.01 per share, of the issuer. These restricted stock units have been assigned to Wexford Capital LP under the terms of Mr. Jacobi's employment with Wexford Capital LP. As a result, Mr. Jacobi disclaims any interest in these restricted stock units, except for his pecuniary interest therein.

These securities are restricted stock units that were granted under the issuer's equity incentive plan, representing an annual non-employee director grant. These securities will vest on the earlier of June 12, 2025 and the date of the issuer's 2025 Annual Meeting of Stockholders. Each restricted stock unit represents a contingent right to receive one share of common stock, par value $0.01 per share, of the issuer.

These securities are restricted stock units that were granted under the issuer's equity incentive plan, representing an annual non-employee director grant. These securities will vest on the earlier of June 12, 2025 and the date of the issuer's 2025 Annual Meeting of Stockholders. Each restricted stock unit represents a contingent right to receive one share of common stock, par value $0.01 per share, of the issuer.

These securities are restricted stock units that were granted under the issuer's equity incentive plan, representing an annual non-employee director grant. These securities will vest on the earlier of June 12, 2025 and the date of the issuer's 2025 Annual Meeting of Stockholders. Each restricted stock unit represents a contingent right to receive one share of common stock, par value $0.01 per share, of the issuer.

These securities are restricted stock units that were granted under the issuer's equity incentive plan, representing an annual non-employee director grant. These securities will vest on the earlier of June 12, 2025 and the date of the issuer's 2025 Annual Meeting of Stockholders. Each restricted stock unit represents a contingent right to receive one share of common stock, par value $0.01 per share, of the issuer.

The price reported in Column 4 is a weighted average purchase price. These shares were purchased in multiple transactions at prices ranging from $3.615 per share to $3.6799 per share, inclusive. The reporting person undertakes to provide to Mammoth Energy Services, Inc. any security holder of Mammoth Energy Services, Inc., 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 ranges set forth in this footnote.

The price reported in Column 4 is a weighted average purchase price. These shares were purchased in multiple transactions at prices ranging from $3.5499 per share to $3.6098 per share, inclusive. The reporting person undertakes to provide to Mammoth Energy Services, Inc. any security holder of Mammoth Energy Services, Inc., 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 ranges set forth in this footnote.

Represents a pro rata, in-kind distribution by MEH SUB LLC ("MEH") to a member of MEH that does not involve (i) a purchase or a sale of securities or (ii) any additional consideration.

Represents the common stock of the Issuer held in the aggregate by Wexford Spectrum Trading Limited ("WST"), Wexford Catalyst Trading Limited ("WCT"), Wexford Focused Trading Limited ("WFT") and MEH (together with WST, WCT and WFT, the "Wexford Entities").

Wexford Capital LP ("Wexford Capital") may, by reason of its status as (i) sub-advisor of each of WST and WCT, (ii) investment manager of WFT and (iii) manager of MEH, be deemed to own beneficially the securities held by the Wexford Entities. Wexford GP LLC ("Wexford GP") may, as the General Partner of Wexford Capital, be deemed to own beneficially the securities held by the Wexford Entities. Each of Charles E. Davidson ("Davidson") and Joseph M. Jacobs ("Jacobs", and together with the Wexford Entities, Wexford Capital, Wexford GP and Davidson, the "Reporting Persons") may, by reason of his status as a controlling person of Wexford GP, be deemed to own beneficially the securities held by the Wexford Entities.

Each of Wexford Capital, Wexford GP, Davidson and Jacobs share the power to vote and to dispose of the securities held by the Wexford Entities. Each of Wexford Capital, Wexford GP, Davidson and Jacobs disclaim beneficial ownership of the securities held by the Wexford Entities and this report shall not be deemed as an admission that they are the beneficial owners of such securities, except to the extent of any pecuniary interests therein. The Reporting Persons may be deemed to be directors by deputization by virtue of Paul Jacobi, an employee of Wexford Capital, serving as a director of the Issuer.

The price reported in Column 4 is a weighted average purchase price. These shares were purchased in multiple transactions at prices ranging from $3.71 per share to $3.725 per share, inclusive. The reporting person undertakes to provide to Mammoth Energy Services, Inc. any security holder of Mammoth Energy Services, Inc., 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 ranges set forth in this footnote.

These shares were sold by the reporting person for tax purposes.

The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $4.23 per share to $4.50 per share, inclusive. The reporting person undertakes to provide to Mammoth Energy Services, Inc., any security holder of Mammoth Energy Services, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote.

These shares were sold by the reporting person for tax purposes.

The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $4.24 per share to $4.46 per share, inclusive. The reporting person undertakes to provide to Mammoth Energy Services, Inc., any security holder of Mammoth Energy Services, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote.

These shares were sold by the reporting person for tax purposes.

The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $4.30 per share to $4.63 per share, inclusive. The reporting person undertakes to provide to Mammoth Energy Services, Inc., any security holder of Mammoth Energy Services, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote.

These shares were sold by the reporting person for tax purposes.

The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $4.29 per share to $4.64 per share, inclusive. The reporting person undertakes to provide to Mammoth Energy Services, Inc., any security holder of Mammoth Energy Services, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote.

These shares were sold by the reporting person for tax purposes.

The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $4.28 per share to $4.52 per share, inclusive. The reporting person undertakes to provide to Mammoth Energy Services, Inc., any security holder of Mammoth Energy Services, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote.

These securities are restricted stock units that were granted under the issuer's equity incentive plan, representing an annual non-employee director grant. These securities will vest on the earlier of June 7, 2024 and the date of the issuer's 2024 Annual Meeting of Stockholders. Each restricted stock unit represents a contingent right to receive one share of common stock, par value $0.01 per share, of the issuer.

These securities are restricted stock units that were granted under the issuer's equity incentive plan, representing an annual non-employee director grant. These securities will vest on the earlier of June 7, 2024 and the date of the issuer's 2024 Annual Meeting of Stockholders. Each restricted stock unit represents a contingent right to receive one share of common stock, par value $0.01 per share, of the issuer. These restricted stock units have been assigned to Wexford Capital LP under the terms of Mr. Jacobi's employment with Wexford Capital LP. As a result, Mr. Jacobi disclaims any interest in these restricted stock units, except for his pecuniary interest therein.

These securities are restricted stock units that were granted under the issuer's equity incentive plan, representing an annual non-employee director grant. These securities will vest on the earlier of June 7, 2024 and the date of the issuer's 2024 Annual Meeting of Stockholders. Each restricted stock unit represents a contingent right to receive one share of common stock, par value $0.01 per share, of the issuer. These restricted stock units have been assigned to Wexford Capital LP under the terms of Mr. Amron's employment with Wexford Capital LP. As a result, Mr. Amron disclaims any interest in these restricted stock units, except for his pecuniary interest therein.

These securities are restricted stock units that were granted under the issuer's equity incentive plan, representing an annual non-employee director grant. These securities will vest on the earlier of June 7, 2024 and the date of the issuer's 2024 Annual Meeting of Stockholders. Each restricted stock unit represents a contingent right to receive one share of common stock, par value $0.01 per share, of the issuer.

These securities are restricted stock units that were granted under the issuer's equity incentive plan, representing an annual non-employee director grant. These securities will vest on the earlier of June 7, 2024 and the date of the issuer's 2024 Annual Meeting of Stockholders. Each restricted stock unit represents a contingent right to receive one share of common stock, par value $0.01 per share, of the issuer.

These shares were withheld by the Company to satisfy tax withholding obligations incurred in connection with the vesting of restricted stock units previously granted under the issuer's equity incentive plan. The number of shares withheld by the Company was determined based on the closing price per share of the Company's common stock on March 3, 2023, the vesting date.

These shares were withheld by the Company to satisfy tax withholding obligations incurred in connection with the vesting of restricted stock units previously granted under the issuer's equity incentive plan. The number of shares withheld by the Company was determined based on the closing price per share of the Company's common stock on March 3, 2023, the vesting date.

The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $7.06 to $7.16 per share, inclusive. The reporting person undertakes to provide to Mammoth Energy Services, Inc., any security holder of Mammoth Energy Services, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

These securities are restricted stock units that were granted under the issuer's equity incentive plan, representing an annual non-employee director grant. These securities will vest on the earlier of June 29, 2023 and the date of the issuer's 2023 Annual Meeting of Stockholders. Each restricted stock unit represents a contingent right to receive one share of common stock, par value $0.01 per share, of the issuer. These restricted stock units have been assigned to Wexford Capital LP under the terms of Mr. Amron's employment with Wexford Capital LP. As a result, Mr. Amron disclaims any interest in these restricted stock units, except for his pecuniary interest therein.