Exhibit 4.10

SECOND SUPPLEMENTAL INDENTURE

SECOND SUPPLEMENTAL INDENTURE (this Supplemental
Indenture), dated as of August 3, 2007 among Petrohawk Energy Corporation, a Delaware corporation (the Company), One TEC, LLC, a Texas limited liability company, One TEC Operating, LLC, a Texas limited liability
company, and Bison Ranch, LLC, an Idaho limited liability company (the New Guarantors), the existing Guarantors (as defined in the Indenture referred to herein), and U.S. Bank National Association, as trustee under the Indenture
referred to herein (the Trustee). The New Guarantors and the existing Guarantors are sometimes referred to collectively herein as the Guarantors, or individually as a Guarantor.

WITNESSETH

WHEREAS, the Company and the
existing Guarantors have heretofore executed and delivered to the Trustee an indenture (the Indenture), dated as of July 12, 2006, relating to the 9 1/8% Senior Notes due 2013 (the Securities) of the
Company;

WHEREAS, Section 4.9 of the Indenture provides that if the Company or any of its Restricted Subsidiaries acquires or creates
another Restricted Subsidiary (other than a Foreign Subsidiary) on or after the Issue Date, then the Company shall cause such newly acquired or created Restricted Subsidiary to become a Guarantor and execute a supplemental indenture substantially in
the form of Exhibit E to the Indenture and deliver an Opinion of Counsel to the Trustee as provided in the Indenture; and

WHEREAS,
pursuant to Section 9.1 of the Indenture, the Company, the Guarantors and the Trustee are authorized to execute and deliver this Supplemental Indenture to amend or supplement the Indenture without the consent of any Holder.

NOW THEREFORE, to comply with the provisions of the Indenture and in consideration of the foregoing and for other good and valuable consideration, the
receipt of which is hereby acknowledged, the New Guarantors, the other Guarantors, the Company and the Trustee mutually covenant and agree for the equal and ratable benefit of the Holders of the Securities as follows:

1. CAPITALIZED TERMS. Capitalized terms used herein without definition shall have the meanings assigned to them in the Indenture.

2. AGREEMENT TO GUARANTEE. The New Guarantors hereby agree, jointly and severally, with all other Guarantors, to unconditionally Guarantee to each Holder
and to the Trustee the Obligations, to the extent set forth in the Indenture and subject to the provisions in the Indenture. The obligations of the Guarantors to the Holders of Securities and to the Trustee pursuant to the Subsidiary Guarantees and
the Indenture are expressly set forth in Article X of the Indenture and reference is hereby made to the Indenture for the precise terms of the Subsidiary Guarantees.

3. EXECUTION AND DELIVERY. The New Guarantors agree that the Subsidiary Guarantee shall remain in full force and effect notwithstanding any failure to endorse on each Security a notation of such Subsidiary Guarantee.



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4. NEW YORK LAW TO GOVERN. THE LAW OF THE STATE OF NEW YORK SHALL GOVERN AND BE USED TO CONSTRUE AND
ENFORCE THIS SUPPLEMENTAL INDENTURE.

5. COUNTERPARTS. The parties may sign any number of copies of this Supplemental Indenture. Each
signed copy shall be an original, but all of them together represent the same agreement. This Supplemental Indenture may be executed in multiple counterparts which, when taken together, shall constitute one instrument.

6. EFFECT OF HEADINGS. The section headings herein are for convenience only and shall not affect the construction hereof.

7. THE TRUSTEE. Except as otherwise expressly provided herein, no duties, responsibilities or liabilities are assumed, or shall be construed to be
assumed, by the Trustee by reason of this Supplemental Indenture. This Supplemental Indenture is executed and accepted by the Trustee subject to all the terms and conditions set forth in the Indenture with the same force and effect as if those terms
and conditions were repeated at length herein and made applicable to the Trustee with respect hereto.



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IN WITNESS WHEREOF, the parties hereto have caused this Supplemental Indenture to be duly executed and
attested, all as of the date first above written.

Dated: August 3, 2007



|                                 |  |                                               |  |                             |  |        |  |                                      
|-------------------------------- |  | --------------------------------------------- |  | --------------------------- |  | ------ |  | -------------------------------------
|ONE TEC, LLC                     |  |                                               |  | One TEC Operating, LLC     
|                                 |  |                                               |  |                            
|By                               |  | /s/ Floyd C. Wilson                           |  |                             |  | By     |  | /s/ Floyd C. Wilson                  
|Name:                            |  | Floyd C. Wilson                               |  |                             |  | Name:  |  | Floyd C. Wilson                      
|Title:                           |  | President and Chief Executive Officer         |  |                             |  | Title: |  | President and Chief Executive Officer
|                                 |  |                                               | 
|Bison Ranch, LLC                 |  |                                               |  |                             |  |       
|                                 |  |                                               |  |                            
|By                               |  | /s/ Floyd C. Wilson                           |  |                             |  |        |  |                                      
|Name:                            |  | Floyd C. Wilson                               |  |                             |  |        |  |                                      
|Title:                           |  | President and Chief Executive Officer         |  |                             |  |        |  |                                      
|                                 |  |                                              
|P-H ENERGY, LLC                  |  |                                               |  | PETROHAWK OPERATING COMPANY
|                                 |  |                                               |  |                            
|By                               |  | /s/ Floyd C. Wilson                           |  |                             |  | By     |  | /s/ Floyd C. Wilson                  
|                                 |  | Floyd C. Wilson                               |  |                             |  |        |  | Floyd C. Wilson                      
|                                 |  | President and Chief Executive Officer         |  |                             |  |        |  | President and Chief Executive Officer
|                                 |  |                                              
|RED RIVER FIELD SERVICES, L.L.C. |  |                                               |  | PETROHAWK PROPERTIES, LP   
|                                 |  |                                               |  |                            
|By                               |  | Petrohawk Energy Corporation, its sole member |  |                             |  | By     |  | P-H Energy, LLC, its general partner 
|                                 |  |                                               |  |                            
|By                               |  | /s/ Floyd C. Wilson                           |  |                             |  | By     |  | /s/ Floyd C. Wilson                  
|                                 |  | Floyd C. Wilson                               |  |                             |  |        |  | Floyd C. Wilson                      
|                                 |  | President and Chief Executive Officer         |  |                             |  |        |  | President and Chief Executive Officer



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|                             |  |                                       |  |                                            |  |    |  |                                      
|---------------------------- |  | ------------------------------------- |  | ------------------------------------------ |  | -- |  | -------------------------------------
|                             |  |                                      
|PETROHAWK HOLDINGS, LLC      |  |                                       |  | WINWELL RESOURCES, INC.                   
|                             |  |                                       |  |                                           
|By                           |  | /s/ Connie D. Tatum                   |  |                                            |  | By |  | /s/ Floyd C. Wilson                  
|                             |  | Connie D. Tatum                       |  |                                            |  |    |  | Floyd C. Wilson                      
|                             |  | President                             |  |                                            |  |    |  | President and Chief Executive Officer
|                             |  |                                      
|WSF, INC.                    |  |                                       |  | MEDALLION CALIFORNIA PROPERTIES COMPANY   
|                             |  |                                       |  |                                           
|By                           |  | /s/ Floyd C. Wilson                   |  |                                            |  | By |  | /s/ Floyd C. Wilson                  
|                             |  | Floyd C. Wilson                       |  |                                            |  |    |  | Floyd C. Wilson                      
|                             |  | President and Chief Executive Officer |  |                                            |  |    |  | President and Chief Executive Officer
|                             |  |                                      
|KCS ENERGY SERVICES, INC.    |  |                                       |  | PROLIQ, INC.                              
|                             |  |                                       |  |                                           
|By                           |  | /s/ Floyd C. Wilson                   |  |                                            |  | By |  | /s/ Floyd C. Wilson                  
|                             |  | Floyd C. Wilson                       |  |                                            |  |    |  | Floyd C. Wilson                      
|                             |  | President and Chief Executive Officer |  |                                            |  |    |  | President and Chief Executive Officer
|                             |  |                                       | 
|KCS RESOURCES, INC.          |  |                                       |  |                                            |  |   
|                             |  |                                       |  |                                           
|By                           |  | /s/ Floyd C. Wilson                   |  |                                            |  |    |  |                                      
|                             |  | Floyd C. Wilson                       |  |                                            |  |    |  |                                      
|                             |  | President and Chief Executive Officer |  |                                            |  |    |  |                                      
|                             |  |                                      
|PETROHAWK ENERGY CORPORATION |  |                                       |  | U.S. BANK NATIONAL ASSOCIATION, as trustee
|                             |  |                                       |  |                                           
|By                           |  | /s/ Floyd C. Wilson                   |  |                                            |  | By |  | /s/ Adam M. Dalmy                    
|                             |  | Floyd C. Wilson                       |  |                                            |  |    |  | Adam M. Dalmy                        
|                             |  | President and Chief Executive Officer |  |                                            |  |    |  | Vice President                       



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