# EDGAR Filing Document

**Accession Number:** 0001679268
**File Stem:** 0001628280-25-034133
**Filing Date:** 2025-7
**Character Count:** 15793
**Document Hash:** 16b5c3209a89d4fb4150baaa1854f008
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001628280-25-034133.hdr.sgml**: 20250703

**ACCESSION NUMBER**: 0001628280-25-034133

**CONFORMED SUBMISSION TYPE**: 8-K

**PUBLIC DOCUMENT COUNT**: 13

**CONFORMED PERIOD OF REPORT**: 20250630

**ITEM INFORMATION**: Entry into a Material Definitive Agreement

**ITEM INFORMATION**: Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers: Compensatory Arrangements of Certain Officers

**ITEM INFORMATION**: Financial Statements and Exhibits

**FILED AS OF DATE**: 20250703

**DATE AS OF CHANGE**: 20250703

**FILER**: 

**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

**FILING VALUES:**
- **FORM TYPE:** 8-K
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-37917
- **FILM NUMBER:** 251103883

**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

?xml version='1.0' encoding='ASCII'? tusk-20250630

**UNITED STATES**

**SECURITIES AND EXCHANGE COMMISSION**

**Washington, D.C. 20549**

**Form 8-K**

**CURRENT REPORT**

**PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934**

**Date of Report (Date of earliest event reported): June 30, 2025**

**Mammoth Energy Services, Inc.**

(Exact name of registrant as specified in its charter)

**001-37917**

(**Commission File No.)**

---

| | | | | |
|:---|:---|:---|:---|:---|
| **Delaware** | **Delaware** | | | **32-0498321** |
| (State or other jurisdiction of incorporation or organization) | (State or other jurisdiction of incorporation or organization) |  |  | (I.R.S. Employer Identification No.) |
| **14201 Caliber Drive,** | **Suite 300** |  |  |  |
| **Oklahoma City,** | **Oklahoma** | **(405)** | **608-6007** | **73134** |
| (Address of principal executive offices) | (Address of principal executive offices) | (Registrant's telephone number, including area code) | (Registrant's telephone number, including area code) | (Zip Code) |

---

**______________________________**

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

◻ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

◻ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

◻ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

◻ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

---

| | | |
|:---|:---|:---|
| **Securities registered pursuant to Section 12(b) of The Act:** | **Securities registered pursuant to Section 12(b) of The Act:** | **Securities registered pursuant to Section 12(b) of The Act:** |
| **<u>Title of each class</u>** | **<u>Trading Symbol(s)</u>** | **<u>Name of each exchange on which registered</u>** |
| Common Stock | TUSK | The Nasdaq Stock Market LLC |
| | | NASDAQ Global Select Market |

---

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§232.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

Emerging Growth Company ◻

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(s) of the Exchange Act. ◻

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**Item 1.01 Entry into a Material Definitive Agreement.** 

On July 2, 2025, Mammoth Energy Services, Inc. ("Mammoth" or the "Company") entered into a letter agreement with Fifth Third Bank, National Association ("Fifth Third Bank") (the "Letter Agreement") in relation to its revolving credit facility with Fifth Third Bank (the "Credit Agreement") whereby the Revolving Loan Commitments, as defined in the Credit Agreement, are reduced from $75.0 million to $50.0 million.

The foregoing summary does not purport to be complete and is qualified in its entirety by the full text of the Letter Agreement, a copy of which is attached as Exhibit 10.1 to this Current Report on Form 8-K and is incorporated by reference herein.

**Item 5.02 Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers.** 

As previously disclosed in a filing with the Securities and Exchange Commission made by the Company, effective as of July 1, 2025, Bernard Lancaster was appointed the Company's Chief Operating Officer. On June 30, 2025, effective as of July 1, 2025, the Compensation Committee of the Company's Board of Directors approved compensation for Mr. Lancaster in connection with his appointment as the Company's Chief Operating Officer consisting of a base salary of $300,000 per year. Mr. Lancaster is also eligible to receive an annual discretionary bonus based upon his and the Company's performance.

**Item 9.01 Financial Statements and Exhibits.**

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(d)&nbsp;&nbsp;&nbsp;&nbsp;Exhibits

---

| | |
|:---|:---|
| **Exhibit Number** | **Description** |
| <u>[10.1](ex10153mammothconsent.htm)</u> | <u>[Letter Agreement dated July](ex10153mammothconsent.htm)[2](ex10153mammothconsent.htm)[, 2025 by and between Fifth Third Bank, National Association, and Mammoth Energy Services, Inc.](ex10153mammothconsent.htm)</u> |
| 104 | Cover Page Interactive Data File - the cover page XBRL tags are embedded within the Inline XBRL document. |

---

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**Signature**

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.

---

| | | | |
|:---|:---|:---|:---|
| | | | **MAMMOTH ENERGY SERVICES, INC.** |
| Date: | July 3, 2025 | By: | /s/ Mark Layton |
|  |  |  | Mark Layton |
|  |  |  | *Chief Financial Officer and Secretary* |

---

## Exhibit 10.1

**Exhibit 10.1**

**FIFTH THIRD BANK, NATIONAL ASSOCIATION**

38 Fountain Square Plaza

Cincinnati, Ohio 45202

July 2, 2025

Mammoth Energy Services, Inc.

14201 Caliber Drive, Suite 300

Oklahoma City, Oklahoma 73134

Re:&nbsp;&nbsp;&nbsp;&nbsp;Stifel Accounts; Reduction of Revolving Loan Commitments

Ladies and Gentlemen:

Reference is made to the Revolving Credit Agreement (as amended, restated, supplemented or otherwise modified from time to time, the "<u>Credit Agreement</u>"; capitalized terms used and not defined herein shall have the meanings ascribed thereto in the Credit Agreement), dated as of October 16, 2023, by and among Mammoth Energy Services, Inc., a Delaware corporation, as Borrower, the other Loan Parties from time to time party thereto, the Lenders from time to time party thereto, and Fifth Third Bank, National Association, as Agent.

Borrower has requested that Agent and the Required Lenders consent (the "<u>Requested Consent</u>") to permit one or more of the Loan Parties to open one or more Securities Accounts at Stifel Financial Corp. (together with its Affiliates, "<u>Stifel</u>"). Notwithstanding anything to the contrary set forth in the Credit Agreement, Agent and the Required Lenders hereby agree to the Requested Consent, subject to the following terms and conditions:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;1.Except for any Securities Accounts at Stifel (such accounts, the "<u>Permitted Stifel Accounts</u>"), any Excluded Accounts and any Permitted Private Securities Accounts in respect of the Permitted Private Investments, no Loan Party shall open, acquire or maintain any Deposit Account or Securities Account with any financial institution or securities intermediary other than Fifth Third Bank, National Association and/or its Affiliates.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;2.The Permitted Stifel Accounts shall not be required to be subject to a Securities Account Control Agreement.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;3.Borrower shall not permit the aggregate amount of unrestricted cash and Cash Equivalents of the Loan Parties in Deposit Accounts and/or Securities Accounts maintained at Fifth Third Bank, National Association and/or its Affiliates to be less than $50,000,000 for longer than three consecutive Business Days, unless the aggregate balance at the Permitted Stifel Accounts is $0.00, and during such three Business Day period, Availability shall be deemed to be $0.00.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;4.Together with Borrower's delivery of each Borrowing Base Certificate pursuant to <u>Annex D</u> to the Credit Agreement, Borrower shall deliver to Agent a copy of all statements, confirmations, notices of claims and other correspondence concerning the Permitted Stifel Accounts (other than to the extent previously provided pursuant to this clause).

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;5.No Borrowing Base Cash Collateral, Eligible Convertible Bonds, Eligible Equity Securities, or Eligible Government Securities shall be maintained in any Deposit Accounts or Securities

------

Mammoth Energy Services, Inc.

July 2, 2025

Accounts other than Deposit Accounts and Securities Accounts maintained at Fifth Third Bank, National Association and/or its Affiliates.

The failure of any of the Loan Parties to satisfy any of the requirements set forth in <u>clauses 1</u> through <u>5</u> above shall constitute an immediate Event of Default under <u>Section 9.1</u> of the Credit Agreement (notwithstanding anything to the contrary set forth in the Credit Agreement, including <u>Section 9.1(d)</u> thereof).

In addition, effective as of the date hereof, Agent, the Lenders, Borrower and the other Loan Parties hereby agree that the Revolving Loan Commitments are hereby reduced from $75,000,000 to $50,000,000. For the avoidance of doubt, the Swing Line Maximum Amount continues to be $7,500,000.

Each Loan Party hereby acknowledges and agrees that (i) except as expressly set forth herein, this letter agreement is not intended to constitute, and should not be construed as, any kind of consent, waiver, amendment or other agreement related to, the Credit Agreement or the other Loan Documents; and (ii) the consent and other modifications contained herein do not and shall not create (nor shall any Loan Party rely upon the existence of or claim or assert that there exists) any obligation of Agent or any Lender to consider or agree to any future consent, waiver, amendment or other agreement and, in the event Agent or any Lender subsequently agrees to consider any future consent, waiver, amendment or other agreement, neither the consent contained herein nor any other conduct of Agent or any Lender shall be of any force or effect on Agent's or any Lender's consideration or decision with respect thereto.

Each Loan Party, as a material inducement to Agent and the undersigned Lenders to enter into this letter agreement hereby (a) represents and warrants that (i) as of the date hereof, each of the representations and warranties set forth in the Credit Agreement and each other Loan Document is true and correct in all material respects on and as of the date hereof to the same extent as though made on and as of the date hereof, except to the extent that such representations or warranties expressly relate to an earlier date in which case such representations or warranties are true or correct in any material respect as of such earlier date (except that such material qualifier shall not be applicable to any representations and warranties that already are qualified or modified by materiality in the text thereof); (ii) as of the date hereof, no Default or Event of Default has occurred and is continuing under the Credit Agreement or any other Loan Document; (iii) such Loan Party has the power and is duly authorized to enter into, deliver and perform its obligations under this letter agreement; and (iv) each of this letter agreement and the Credit Agreement, as modified hereby, is the legal, valid and binding obligation of such Loan Party enforceable against such Loan Party in accordance with its terms, except as may be limited by Debtor Relief Laws; (b) reaffirms each of the agreements, covenants and undertakings set forth in the Credit Agreement and each other Loan Document to which it is a party, in each case, as modified by the terms of this letter agreement; and (c) acknowledges and agrees that no right of offset, defense, counterclaim, recoupment, claim, cause of action or objection in favor of such Loan Party against Agent or any Lender exists as of the date hereof arising out of or with respect to (i) this letter agreement, the Credit Agreement or any other Loan Document or (ii) any other document now or heretofore evidencing, securing or in any way relating to the foregoing.

This letter agreement constitutes a Loan Document for all purposes under the Credit Agreement and the other Loan Documents. <u>Sections 1.4</u> (*Other Definitional Provisions and References*), <u>12.12</u> (*Governing Law; Submission to Jurisdiction*), <u>12.13</u> (*Waiver of Jury Trial*), and <u>12.15</u> (*Counterparts; Integration*) of the Credit Agreement are incorporated herein *mutatis mutandis*.

[Remainder of Page Intentionally Blank]

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Please confirm your agreement to the foregoing by signing and returning this letter agreement to us.

Very truly yours,

**FIFTH THIRD BANK, NATIONAL ASSOCIATION**, as Agent and the sole Lender

By:&nbsp;&nbsp;&nbsp;&nbsp;/s/ James G. Zamborsky

Name:&nbsp;&nbsp;&nbsp;&nbsp;James G. Zamborsky

Title:&nbsp;&nbsp;&nbsp;&nbsp;Vice President

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**Acknowledged and agreed:**

**MAMMOTH ENERGY SERVICES, INC.**

**ANACONDA MANUFACTURING LLC**

**AQUAWOLF LLC**

**BISON DRILLING AND FIELD SERVICES LLC**

**BISON TRUCKING LLC**

**BLACK MAMBA ENERGY LLC**

**COBRA ACQUISITIONS LLC**

**COBRA AVIATION SERVICES LLC**

**DIRE WOLF ENERGY SERVICES LLC**

**FALCON FIBER SOLUTIONS LLC**

**GREAT WHITE SAND TIGER LODGING LTD.**

**LEOPARD AVIATION LLC**

**LION POWER SERVICES LLC**

**MAKO ACQUISITIONS LLC**

**MAMMOTH ENERGY INC.**

**MAMMOTH ENERGY PARTNERS LLC**

**MAMMOTH EQUIPMENT LEASING II LLC**

**MAMMOTH EQUIPMENT LEASING LLC**

**MR. INSPECTIONS LLC**

**MUSKIE PROPPANT LLC**

**ORCA ENERGY SERVICES LLC**

**PANTHER DRILLING SYSTEMS LLC**

**PIRANHA PROPPANT LLC**

**PREDATOR AVIATION LLC**

**SAND TIGER HOLDINGS INC.**

**SEAWOLF ENERGY SERVICES LLC**

**SILVERBACK ENERGY LLC**

**SILVERBACK LOGISTICS LLC**

**SOUTH RIVER ROAD, LLC**

**STINGRAY CEMENTING AND ACIDIZING LLC**

**STINGRAY ENERGY SERVICES LLC**

**STINGRAY PRESSURE PUMPING LLC**

**STURGEON ACQUISITIONS LLC**

**TAYLOR FRAC, LLC**

**TAYLOR REAL ESTATE INVESTMENTS, LLC**

**TIGER SHARK LOGISTICS LLC**

**WOLVERINE SAND LLC**

By: /s/ Mark Layton

Name:&nbsp;&nbsp;&nbsp;&nbsp;Mark Layton

Title:&nbsp;&nbsp;&nbsp;&nbsp;Chief Financial Officer

<br>