Document:

Eighth Supplemental Indenture

 Exhibit 4.12 

EIGHTH SUPPLEMENTAL INDENTURE 

EIGHTH SUPPLEMENTAL INDENTURE (this “Supplemental Indenture”), dated as of June 30, 2010, among Big Hawk Services,
LLC, a Delaware limited liability company (the “New Guarantor”), Petrohawk Energy Corporation, a Delaware corporation (the “Company”), the existing Guarantors (as defined in the Indenture referred to herein) and Law
Debenture Trust Company of New York, as successor to U.S. Bank National Association, as trustee under the Indenture referred to herein (the “Trustee”). The New Guarantor 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 April 1, 2004, relating to the 7 1/8
% Senior Notes due 2012 (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) after the Issue Date, then the Company shall cause newly acquired or created Restricted Subsidiary (i) to become a Guarantor by executing a supplemental indenture and (ii) to
deliver an Opinion of Counsel to the Trustee as provided in such Section; 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 Guarantor, 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 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. The 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 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. 

 [Remainder of Page
Intentionally Left Blank; Signature Page Follows] 
  

 2 

 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. 
  

	
	PETROHAWK ENERGY CORPORATION
	HK TRANSPORTATION, LLC
	PETROHAWK HOLDINGS, LLC
	P-H ENERGY, LLC
	PETROHAWK OPERATING COMPANY
	HAWK FIELD SERVICES, L.L.C.
	WINWELL RESOURCES, L.L.C.
	WSF, INC.
	KCS RESOURCES, LLC
	KCS ENERGY SERVICES, INC.
	MEDALLION CALIFORNIA PROPERTIES COMPANY
	PROLIQ, INC.
	ONE TEC, LLC
	ONE TEC OPERATING, LLC
	BISON RANCH LLC
	HK ENERGY MARKETING, LLC

  

			
	 By:
	 	 /s/    David S. Elkouri

		 	 David S. Elkouri

Executive Vice President –

General Counsel and Secretary

 

			
	BIG HAWK SERVICES, LLC
		
	 By:
	 	 /s/    David S. Elkouri

		 	 David S. Elkouri
 Secretary

  

			
	PETROHAWK PROPERTIES, LP
		
	By:	 	 P-H Energy, LLC
 Its General
Partner

  

			
	 By:
	 	 /s/    David S. Elkouri

		 	 David S. Elkouri

Executive Vice President –

General Counsel and Secretary

SIGNATURE PAGE OF EIGHTH SUPPLEMENTAL
INDENTURE 

 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. 
  

			
	LAW DEBENTURE TRUST COMPANY OF NEW YORK, as Trustee
		
	 By:
	 	 /s/    Anthony A. Bocchino, Jr.

	Name:	 	Anthony A. Bocchino, Jr.
	Title:	 	 Managing Director

SIGNATURE PAGE OF EIGHTH SUPPLEMENTAL
INDENTURESixth Supplemental Indenture

 Exhibit 4.19 

SIXTH SUPPLEMENTAL INDENTURE 

SIXTH SUPPLEMENTAL INDENTURE (this “Supplemental Indenture”), dated as of June 30, 2010, among Big Hawk Services,
LLC, a Delaware limited liability company (the “New Guarantor”), Petrohawk Energy Corporation, a Delaware corporation (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 Guarantor 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 Foreign Subsidiaries) after the Issue Date, then the Company shall cause newly acquired or created Restricted Subsidiary (i) to become a
Guarantor by executing a supplemental indenture and (ii) to deliver an Opinion of Counsel to the Trustee as provided in such Section; 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 Guarantor, 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 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. The 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 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. 

 [Remainder of Page
Intentionally Left Blank; Signature Page Follows] 
  

 2 

 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. 
  

			
	PETROHAWK ENERGY CORPORATION
	HK TRANSPORTATION, LLC
	PETROHAWK HOLDINGS, LLC
	P-H ENERGY, LLC
	PETROHAWK OPERATING COMPANY
	HAWK FIELD SERVICES, L.L.C.
	WINWELL RESOURCES, L.L.C.
	WSF, INC.
	KCS RESOURCES, LLC
	KCS ENERGY SERVICES, INC.
	MEDALLION CALIFORNIA PROPERTIES COMPANY
	PROLIQ, INC.
	ONE TEC, LLC
	ONE TEC OPERATING, LLC
	BISON RANCH LLC
	HK ENERGY MARKETING, LLC
		
	By:	 	 /s/    David S. Elkouri

		 	 David S. Elkouri
 Executive
Vice President –
 General Counsel and Secretary

	
	BIG HAWK SERVICES, LLC
		
	By:	 	 /s/    David S. Elkouri

		 	 David S. Elkouri
 Secretary

	
	PETROHAWK PROPERTIES, LP
		
	By:	 	 P-H Energy, LLC
 Its General
Partner

		
	By:	 	 /s/    David S. Elkouri

		 	 David S. Elkouri
 Executive
Vice President –
 General Counsel and Secretary

SIGNATURE PAGE OF SIXTH SUPPLEMENTAL
INDENTURE 

 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. 
  

			
	U.S. BANK NATIONAL ASSOCIATION, as Trustee
		
	By:	 	 /s/    Steven A. Finklea

	Name:	 	Steven A. Finklea, CCTS
	Title:	 	Vice President

SIGNATURE PAGE OF SIXTH SUPPLEMENTAL
INDENTURE

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