First Supplemental Indenture relating to Petrohawk's 9 1/8% senior notes


 Exhibit 4.7 
 FIRST SUPPLEMENTAL INDENTURE 
 FIRST SUPPLEMENTAL INDENTURE (this “Supplemental
Indenture”), dated as of July 12, 2006, among Petrohawk Energy Corporation, a Delaware corporation (the “Company”), KCS Resources, Inc., a Delaware corporation, Medallion California Properties Company, a Delaware corporation, KCS
Energy Services, Inc., a Delaware corporation, and Proliq, Inc., a New Jersey corporation (collectively, the “New Guarantors”), each a subsidiary of the Company, 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.” 
 W I T N E S S E T H 
 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 Foreign Subsidiaries) 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. Each New Guarantor hereby agrees, 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. Each New Guarantor agrees that the Subsidiary Guarantee shall remain in full force and effect notwithstanding any failure to
endorse on each Security a notation of any such Subsidiary Guarantee. 






 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. 
 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:
July 12, 2006 
  

									
	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








									
	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/ Hester M. Parrot

		 	Floyd C. Wilson	  		  		 	Hester M. Parrot
		 	President and Chief Executive Officer	  		  		 	Assistant Vice President