# EDGAR Filing Document

**Accession Number:** 0001001391
**File Stem:** 0001398344-26-011113
**Filing Date:** 2026-6
**Character Count:** 13094
**Document Hash:** 427d8d49cad13a3d07e6c41899e43f9b
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001398344-26-011113.hdr.sgml**: 20260622

**ACCESSION NUMBER**: 0001398344-26-011113

**CONFORMED SUBMISSION TYPE**: 4

**PUBLIC DOCUMENT COUNT**: 1

**CONFORMED PERIOD OF REPORT**: 20260617

**FILED AS OF DATE**: 20260622

**DATE AS OF CHANGE**: 20260622

**REPORTING-OWNER**: 

**OWNER DATA:**
- **COMPANY CONFORMED NAME:** DAVIDSON CHARLES E
- **CENTRAL INDEX KEY:** 0001001391

**ORGANIZATION NAME:**

**FILING VALUES:**
- **FORM TYPE:** 4
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-37917
- **FILM NUMBER:** 261107441

**MAIL ADDRESS:**
- **STREET 1:** C/O WEXFORD CAPITAL LP
- **STREET 2:** 777 SOUTH FLAGLER DRIVE, SUITE 602
- **CITY:** WEST PALM BEACH
- **STATE:** FL
- **ZIP:** 33401
**REPORTING-OWNER**: 

**OWNER DATA:**
- **COMPANY CONFORMED NAME:** WEXFORD CAPITAL LP
- **CENTRAL INDEX KEY:** 0001048462

**ORGANIZATION NAME:**
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** 4
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-37917
- **FILM NUMBER:** 261107443

**BUSINESS ADDRESS:**
- **STREET 1:** 777 SOUTH FLAGLER DRIVE
- **STREET 2:** SUITE 602 EAST
- **CITY:** WEST PALM BEACH
- **STATE:** FL
- **ZIP:** 33401-6122
- **BUSINESS PHONE:** 561-273-8600

**MAIL ADDRESS:**
- **STREET 1:** 777 SOUTH FLAGLER DRIVE
- **STREET 2:** SUITE 602 EAST
- **CITY:** WEST PALM BEACH
- **STATE:** FL
- **ZIP:** 33401-6122

**FORMER NAME:**
- **FORMER CONFORMED NAME:** WEXFORD CAPITAL LLC
- **DATE OF NAME CHANGE:** 20000817

**FORMER NAME:**
- **FORMER CONFORMED NAME:** WEXFORD MANAGEMENT LLC
- **DATE OF NAME CHANGE:** 19971024
**REPORTING-OWNER**: 

**OWNER DATA:**
- **COMPANY CONFORMED NAME:** JACOBS JOSEPH
- **CENTRAL INDEX KEY:** 0001048485

**ORGANIZATION NAME:**

**FILING VALUES:**
- **FORM TYPE:** 4
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-37917
- **FILM NUMBER:** 261107440

**MAIL ADDRESS:**
- **STREET 1:** C/O WEXFORD CAPITAL LP
- **STREET 2:** 777 SOUTH FLAGLER DRIVE, SUITE 602 EAST
- **CITY:** WEST PALM BEACH
- **STATE:** FL
- **ZIP:** 33401
**REPORTING-OWNER**: 

**OWNER DATA:**
- **COMPANY CONFORMED NAME:** Wexford GP LLC
- **CENTRAL INDEX KEY:** 0001472112

**ORGANIZATION NAME:**
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** 4
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-37917
- **FILM NUMBER:** 261107442

**BUSINESS ADDRESS:**
- **STREET 1:** C/O WEXFORD CAPITAL LP
- **STREET 2:** 777 SOUTH FLAGLER DRIVE, SUITE 602 EAST
- **CITY:** WEST PALM BEACH
- **STATE:** CT
- **ZIP:** 33401
- **BUSINESS PHONE:** 203-862-7000

**MAIL ADDRESS:**
- **STREET 1:** C/O WEXFORD CAPITAL LP
- **STREET 2:** 777 SOUTH FLAGLER DRIVE, SUITE 602 EAST
- **CITY:** WEST PALM BEACH
- **STATE:** CT
- **ZIP:** 33401
**ISSUER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** MAMMOTH ENERGY SERVICES, INC.
- **CENTRAL INDEX KEY:** 0001679268
- **STANDARD INDUSTRIAL CLASSIFICATION:** OIL, GAS FIELD SERVICES, NBC [1389]
- **ORGANIZATION NAME:** 01 Energy & Transportation
- **EIN:** 320498321
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1231

**BUSINESS ADDRESS:**
- **STREET 1:** 14201 CALIBER DRIVE
- **STREET 2:** SUITE 300
- **CITY:** OKLAHOMA CITY
- **STATE:** OK
- **ZIP:** 73134
- **BUSINESS PHONE:** 405-608-6007

**MAIL ADDRESS:**
- **STREET 1:** 14201 CALIBER DRIVE
- **STREET 2:** SUITE 300
- **CITY:** OKLAHOMA CITY
- **STATE:** OK
- **ZIP:** 73134

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** Mammoth Energy Services, Inc.
- **DATE OF NAME CHANGE:** 20160708

### UNITED STATES SECURITIES AND EXCHANGE COMMISSION
**Washington, D.C. 20549**

## FORM 4

### STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

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

[ ] Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

---

| | | |
|:---|:---|:---|
| **1. Name and Address of Reporting Person**<sup>*</sup><br>WEXFORD CAPITAL LP<br><sub>(Last) (First) (Middle)</sub><br>777 SOUTH FLAGLER DRIVE<br>SUITE 602 EAST<br><sub>(Street)</sub><br>WEST PALM BEACH, FL 33401-6122<br><sub>(City) (State) (Zip)</sub> | **3. Date of Earliest Transaction (Month/Day/Year)**<br>2026-06-17 | **5. Relationship of Reporting Person(s) to Issuer**<br>(Check all applicable)<br>[X] Director [X] 10% Owner<br>[X] Officer (give title below) [ ] Other (specify below)<br>_Chief Business Officer_ |
| **2. Issuer Name and Ticker or Trading Symbol**<br>MAMMOTH ENERGY SERVICES, INC. [ TUSK ] | **4. If Amendment, Date of Original Filed (Month/Day/Year)**<br>  | **6. Individual or Joint/Group Filing (Check Applicable Line)**<br>[ ] Form filed by One Reporting Person<br>[X] Form filed by More than One Reporting Person |

---

---

| | | |
|:---|:---|:---|
| **1. Name and Address of Reporting Person**<sup>*</sup><br>Wexford GP LLC<br><sub>(Last) (First) (Middle)</sub><br>C/O WEXFORD CAPITAL LP<br>777 SOUTH FLAGLER DRIVE, SUITE 602 EAST<br><sub>(Street)</sub><br>WEST PALM BEACH, CT 33401<br><sub>(City) (State) (Zip)</sub> | **3. Date of Earliest Transaction (Month/Day/Year)**<br>2026-06-17 | **5. Relationship of Reporting Person(s) to Issuer**<br>(Check all applicable)<br>[X] Director [X] 10% Owner<br>[X] Officer (give title below) [ ] Other (specify below)<br>_Chief Business Officer_ |
| **2. Issuer Name and Ticker or Trading Symbol**<br>MAMMOTH ENERGY SERVICES, INC. [ TUSK ] | **4. If Amendment, Date of Original Filed (Month/Day/Year)**<br>  | **6. Individual or Joint/Group Filing (Check Applicable Line)**<br>[ ] Form filed by One Reporting Person<br>[X] Form filed by More than One Reporting Person |

---

---

| | | |
|:---|:---|:---|
| **1. Name and Address of Reporting Person**<sup>*</sup><br>DAVIDSON CHARLES E<br><sub>(Last) (First) (Middle)</sub><br>C/O WEXFORD CAPITAL LP<br>777 SOUTH FLAGLER DRIVE, SUITE 602<br><sub>(Street)</sub><br>WEST PALM BEACH, FL 33401<br><sub>(City) (State) (Zip)</sub> | **3. Date of Earliest Transaction (Month/Day/Year)**<br>2026-06-17 | **5. Relationship of Reporting Person(s) to Issuer**<br>(Check all applicable)<br>[X] Director [X] 10% Owner<br>[X] Officer (give title below) [ ] Other (specify below)<br>_Chief Business Officer_ |
| **2. Issuer Name and Ticker or Trading Symbol**<br>MAMMOTH ENERGY SERVICES, INC. [ TUSK ] | **4. If Amendment, Date of Original Filed (Month/Day/Year)**<br>  | **6. Individual or Joint/Group Filing (Check Applicable Line)**<br>[ ] Form filed by One Reporting Person<br>[X] Form filed by More than One Reporting Person |

---

---

| | | |
|:---|:---|:---|
| **1. Name and Address of Reporting Person**<sup>*</sup><br>JACOBS JOSEPH<br><sub>(Last) (First) (Middle)</sub><br>C/O WEXFORD CAPITAL LP<br>777 SOUTH FLAGLER DRIVE, SUITE 602 EAST<br><sub>(Street)</sub><br>WEST PALM BEACH, FL 33401<br><sub>(City) (State) (Zip)</sub> | **3. Date of Earliest Transaction (Month/Day/Year)**<br>2026-06-17 | **5. Relationship of Reporting Person(s) to Issuer**<br>(Check all applicable)<br>[X] Director [X] 10% Owner<br>[X] Officer (give title below) [ ] Other (specify below)<br>_Chief Business Officer_ |
| **2. Issuer Name and Ticker or Trading Symbol**<br>MAMMOTH ENERGY SERVICES, INC. [ TUSK ] | **4. If Amendment, Date of Original Filed (Month/Day/Year)**<br>  | **6. Individual or Joint/Group Filing (Check Applicable Line)**<br>[ ] Form filed by One Reporting Person<br>[X] Form filed by More than One Reporting Person |

---

## Table I - Non-Derivative Securities

---

|  |  |  |  |  |  |  |  |  |  |  |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1. Title of Security | 2. Transaction Date | 2A. Deemed Execution Date | 3. Transaction Code (V) | 3. Transaction Code (V) | 4. Securities Acquired (A) or Disposed of (D) | 4. Securities Acquired (A) or Disposed of (D) | 4. Securities Acquired (A) or Disposed of (D) | 5. Amount of Securities Beneficially Owned | 6. Ownership Form | 7. Nature of Indirect Beneficial Ownership |
| 1. Title of Security | 2. Transaction Date | 2A. Deemed Execution Date | Code | V | Amount | (A) or (D) | Price | 5. Amount of Securities Beneficially Owned | 6. Ownership Form | 7. Nature of Indirect Beneficial Ownership |
| Common Stock | 2026-06-17 |  | J<sup>(1)</sup> |  | 1072896 | A | $0 | 1451034 | D |  |
| Common Stock | 2026-06-17 |  | J<sup>(2)</sup> |  | 6354667 | A | $0 | 6601215<sup>(3)</sup> | I | See footnotes<sup>(4)(5)</sup> |
| Common Stock | 2026-06-17 |  | P |  | 4019574 | A | $2.6043 | 10620789<sup>(3)</sup> | I | See footnotes<sup>(4)(5)</sup> |

---

## Table II - Derivative Securities

---

|  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 1. Title of Derivative Security | 2. Conversion or Exercise Price | 3. Transaction Date | 3A. Deemed Execution Date | 4. Transaction Code (V) | 4. Transaction Code (V) | 5. Number of Derivative Securities Acquired (A) or Disposed of (D) | 5. Number of Derivative Securities Acquired (A) or Disposed of (D) | 6. Date Exercisable and Expiration Date | 6. Date Exercisable and Expiration Date | 7. Title and Amount of Underlying Securities | 7. Title and Amount of Underlying Securities | 8. Price of Derivative Security | 9. Number of Derivative Securities Beneficially Owned | 10. Ownership Form | 11. Nature of Indirect Beneficial Ownership |
| 1. Title of Derivative Security | 2. Conversion or Exercise Price | 3. Transaction Date | 3A. Deemed Execution Date | Code | V | (A) | (D) | Date Exercisable | Expiration Date | Title | Amount or Number of Shares | 8. Price of Derivative Security | 9. Number of Derivative Securities Beneficially Owned | 10. Ownership Form | 11. Nature of Indirect Beneficial Ownership |
|  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |

---

### Footnotes:

(1) 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.

(2) 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.

(3) 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").

(4) 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.

(5) 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.

**Signature:** Wexford Capital LP, By: Wexford GP LLC, its general partner, By: Mark E. Ahern, Vice President and Assistant Secretary  
**Date:** 2026-06-22

**Signature:** Wexford GP LLC, By: Mark E. Ahern, Vice President and Assistant Secretary  
**Date:** 2026-06-22

**Signature:** Charles E. Davidson  
**Date:** 2026-06-22

**Signature:** Joseph M. Jacobs  
**Date:** 2026-06-22

### Remarks:

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

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

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

Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.

**Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.**