Document:

EX-4.1

 Exhibit 4.1 

FIRST SUPPLEMENTAL INDENTURE 

This First Supplemental Indenture, dated as of January 22, 2019 (this “Supplemental Indenture”), is among Ultra
Resources, Inc., a Delaware corporation (the “Issuer”), Ultra Petroleum Corp., a Yukon, Canada corporation (the “Parent Guarantor”), the Subsidiary Guarantors party hereto (together with the Parent Guarantor, the
“Guarantors”), and Wilmington Trust, National Association, as trustee (in such capacity together with its successors in such capacity, the “Trustee”) under the Indenture referred to below. 

W I T N E S S E T H: 
 WHEREAS,
the Issuer, the Guarantors, the Trustee and Wilmington Trust, National Association, as collateral agent, have heretofore executed and delivered an Indenture, dated as of December 21, 2018 (as amended, supplemented, waived or otherwise modified,
the “Indenture”), providing for the issuance of an aggregate principal amount of $545,000,000 of 9.00% Cash / 2.00% PIK Senior Secured Second Lien Notes due 2024 of the Issuer; 

WHEREAS, Section 2.1(b) of the Indenture provides that, with respect to any Additional Notes issued after the Issue
Date, the Issuer is required to set forth in a supplemental indenture certain information relating to the issuance of such Additional Notes; and 

WHEREAS, pursuant to Section 9.1(10) of the Indenture, the Issuer, 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 Noteholder. 
 NOW,
THEREFORE, in consideration of the foregoing and for other good and valuable consideration, the receipt of which is hereby acknowledged, the Issuer, the Guarantors and the Trustee mutually covenant and agree for the equal and ratable benefit of the
Holders as follows: 
 ARTICLE I 

Definitions 
 SECTION
1.1. Defined Terms. As used in this Supplemental Indenture, terms defined in the Indenture or in the preamble or recital hereto are used herein as therein defined. The words “herein,” “hereof” and “hereby”
and other words of similar import used in this Supplemental Indenture refer to this Supplemental Indenture as a whole and not to any particular section hereof. 

ARTICLE II 
 Additional Notes

 SECTION 2.1. Additional Notes. On or about the date hereof, the Issuer intends to issue Additional Notes in an aggregate
principal amount of $6,960,000 in exchange for $11,600,000 aggregate principal amount of the Issuer’s issued and outstanding 2022 Notes, which shall be the issue price. Such Additional Notes shall in be in the form annexed hereto as
Exhibit A, which shall contain such other terms as may be required pursuant to the Indenture. 

  
 1 

 ARTICLE III 

Miscellaneous 
 SECTION
3.1. Reserved. 
 SECTION 3.2. Parties. Nothing expressed or mentioned herein is intended or shall be construed to
give any Person, firm or corporation, other than the Holders and the Trustee, any legal or equitable right, remedy or claim under or in respect of this Supplemental Indenture or the Indenture or any provision herein or therein contained. 

SECTION 3.3. Governing Law. This Supplemental Indenture shall be governed by, and construed in accordance with, the laws of the
State of New York. 
 SECTION 3.4. Severability Clause. In case any provision in this Supplemental Indenture shall be invalid,
illegal or unenforceable, the validity, legality and enforceability of the remaining provisions shall not in any way be affected or impaired thereby and such provision shall be ineffective only to the extent of such invalidity, illegality or
unenforceability. 
 SECTION 3.5. Ratification of Indenture; Supplemental Indentures Part of Indenture. Except as expressly
amended hereby, the Indenture is in all respects ratified and confirmed and all the terms, conditions and provisions thereof shall remain in full force and effect. This Supplemental Indenture shall form a part of the Indenture for all purposes, and
every Holder of Notes heretofore or hereafter authenticated and delivered shall be bound hereby. The Trustee makes no representation or warranty as to the validity or sufficiency of this Supplemental Indenture or with respect to the recitals
contained herein, all of which recitals are made solely by the other parties hereto. 
 SECTION 3.6. The Trustee. The Trustee
shall not be responsible in any manner whatsoever for or in respect of the validity or sufficiency of this Supplemental Indenture or for or in respect of the recitals contained herein, all of which recitals are made solely by the Issuer. 

SECTION 3.7. Counterparts. The parties hereto may sign one or more copies of this Supplemental Indenture in counterparts, all of
which together shall constitute one and the same agreement. The exchange of copies of this Supplemental Indenture and of signature pages by facsimile or PDF transmission shall constitute effective execution and delivery of this instrument as to the
parties hereto and may be used in lieu of the original instrument for all purposes. Signatures of the parties hereto transmitted by facsimile or PDF shall be deemed to be their original signatures for all purposes 

SECTION 3.8. Headings. The headings of the Articles and the Sections in this Supplemental Indenture are for convenience of
reference only and shall not be deemed to alter or affect the meaning or interpretation of any provisions hereof. 

  
 2 

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

					
	Issuer:
	
	ULTRA RESOURCES, INC.
		
	By:	 	 /s/ David W. Honeyfield

		 	Name:	 	David W. Honeyfield
		 	Title:	 	Senior Vice President and Chief Financial Officer
	
	Parent Guarantor:
	
	ULTRA PETROLEUM CORP.
		
	By:	 	 /s/ David W. Honeyfield

		 	Name:	 	David W. Honeyfield
		 	Title:	 	Chief Financial Officer
	
	Subsidiary Guarantors:
	
	UP ENERGY CORPORATION
		
	By:	 	 /s/ David W. Honeyfield

		 	Name:	 	David W. Honeyfield
		 	Title:	 	Senior Vice President and Chief Executive Officer
	
	KEYSTONE GAS GATHERING, LLC
		
	By:	 	 /s/ David. W. Honeyfield

		 	Name:	 	David. W. Honeyfield
		 	Title:	 	Senior Vice President and Chief Executive Officer

  
 [Signature Page to First
Supplemental Indenture] 

					
	ULTRA WYOMING, LLC
		
	By:	 	 /s/ David W. Honeyfield

		 	Name:	 	David W. Honeyfield
		 	Title:	 	Senior Vice President and Chief Executive Officer
	
	UPL PINEDALE, LLC
		
	By:	 	 /s/ David W. Honeyfield

		 	Name:	 	David W. Honeyfield
		 	Title:	 	Senior Vice President and Chief Executive Officer
	
	UPL THREE RIVERS HOLDINGS, LLC
		
	By:	 	 /s/ David W. Honeyfield

		 	Name:	 	David W. Honeyfield
		 	Title:	 	Senior Vice President and Chief Executive Officer
	
	ULTRA WYOMING LGS, LLC
		
	By:	 	 /s/ David W. Honeyfield

		 	Name:	 	David W. Honeyfield
		 	Title:	 	Senior Vice President and Chief Executive Officer
	
	WILMINGTON TRUST, NATIONAL ASSOCIATION, as Trustee
		
	By:	 	 /s/ Shawn Goffinet

		 	Name:	 	Shawn Goffinet
		 	Title:	 	Assistant Vice President

  
 [Signature Page to First
Supplemental Indenture]EX-4.2

 Exhibit 4.2 

SECOND SUPPLEMENTAL INDENTURE 

This Second Supplemental Indenture, dated as of January 23, 2019 (this “Supplemental Indenture”), is among Ultra
Resources, Inc., a Delaware corporation (the “Issuer”), Ultra Petroleum Corp., a Yukon, Canada corporation (the “Parent Guarantor”), the Subsidiary Guarantors party hereto (together with the Parent Guarantor, the
“Guarantors”), and Wilmington Trust, National Association, as trustee (in such capacity together with its successors in such capacity, the “Trustee”) under the Indenture referred to below. 

W I T N E S S E T H: 
 WHEREAS,
the Issuer, the Guarantors, the Trustee and Wilmington Trust, National Association, as collateral agent, have heretofore executed and delivered an Indenture, dated as of December 21, 2018 (as amended, supplemented, waived or otherwise modified,
the “Indenture”), providing for the issuance of an aggregate principal amount of $545,000,000 of 9.00% Cash / 2.00% PIK Senior Secured Second Lien Notes due 2024 of the Issuer; 

WHEREAS, Section 2.1(b) of the Indenture provides that, with respect to any Additional Notes issued after the Issue
Date, the Issuer is required to set forth in a supplemental indenture certain information relating to the issuance of such Additional Notes; and 

WHEREAS, pursuant to Section 9.1(10) of the Indenture, the Issuer, 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 Noteholder. 
 NOW,
THEREFORE, in consideration of the foregoing and for other good and valuable consideration, the receipt of which is hereby acknowledged, the Issuer, the Guarantors and the Trustee mutually covenant and agree for the equal and ratable benefit of the
Holders as follows: 
 ARTICLE I 

Definitions 
 SECTION
1.1. Defined Terms. As used in this Supplemental Indenture, terms defined in the Indenture or in the preamble or recital hereto are used herein as therein defined. The words “herein,” “hereof” and “hereby”
and other words of similar import used in this Supplemental Indenture refer to this Supplemental Indenture as a whole and not to any particular section hereof. 

ARTICLE II 
 Additional Notes

 SECTION 2.1. Additional Notes. On or about the date hereof, the Issuer intends to issue Additional Notes in an aggregate
principal amount of $7,527,600 in exchange for $12,546,000 aggregate principal amount of the Issuer’s issued and outstanding 2022 Notes, which shall be the issue price. Such Additional Notes shall in be in the form annexed hereto as
Exhibit A, which shall contain such other terms as may be required pursuant to the Indenture. 

  
 1 

 ARTICLE III 

Miscellaneous 
 SECTION
3.1. Reserved. 
 SECTION 3.2. Parties. Nothing expressed or mentioned herein is intended or shall be construed to
give any Person, firm or corporation, other than the Holders and the Trustee, any legal or equitable right, remedy or claim under or in respect of this Supplemental Indenture or the Indenture or any provision herein or therein contained. 

SECTION 3.3. Governing Law. This Supplemental Indenture shall be governed by, and construed in accordance with, the laws of the
State of New York. 
 SECTION 3.4. Severability Clause. In case any provision in this Supplemental Indenture shall be invalid,
illegal or unenforceable, the validity, legality and enforceability of the remaining provisions shall not in any way be affected or impaired thereby and such provision shall be ineffective only to the extent of such invalidity, illegality or
unenforceability. 
 SECTION 3.5. Ratification of Indenture; Supplemental Indentures Part of Indenture. Except as expressly
amended hereby, the Indenture is in all respects ratified and confirmed and all the terms, conditions and provisions thereof shall remain in full force and effect. This Supplemental Indenture shall form a part of the Indenture for all purposes, and
every Holder of Notes heretofore or hereafter authenticated and delivered shall be bound hereby. The Trustee makes no representation or warranty as to the validity or sufficiency of this Supplemental Indenture or with respect to the recitals
contained herein, all of which recitals are made solely by the other parties hereto. 
 SECTION 3.6. The Trustee. The Trustee
shall not be responsible in any manner whatsoever for or in respect of the validity or sufficiency of this Supplemental Indenture or for or in respect of the recitals contained herein, all of which recitals are made solely by the Issuer. 

SECTION 3.7. Counterparts. The parties hereto may sign one or more copies of this Supplemental Indenture in counterparts, all of
which together shall constitute one and the same agreement. The exchange of copies of this Supplemental Indenture and of signature pages by facsimile or PDF transmission shall constitute effective execution and delivery of this instrument as to the
parties hereto and may be used in lieu of the original instrument for all purposes. Signatures of the parties hereto transmitted by facsimile or PDF shall be deemed to be their original signatures for all purposes 

SECTION 3.8. Headings. The headings of the Articles and the Sections in this Supplemental Indenture are for convenience of
reference only and shall not be deemed to alter or affect the meaning or interpretation of any provisions hereof. 

  
 2 

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

					
	Issuer:
	
	ULTRA RESOURCES, INC.
		
	By:	 	 /s/ David W. Honeyfield

		 	Name:	 	David W. Honeyfield
		 	Title:	 	Senior Vice President and Chief Financial Officer
	
	Parent Guarantor:
	
	ULTRA PETROLEUM CORP.
		
	By:	 	 /s/ David W. Honeyfield

		 	Name:	 	David W. Honeyfield
		 	Title:	 	Chief Financial Officer
	
	Subsidiary Guarantors:
	
	UP ENERGY CORPORATION
		
	By:	 	 /s/ David W. Honeyfield

		 	Name:	 	David W. Honeyfield
		 	Title:	 	Senior Vice President and Chief Executive Officer
	
	KEYSTONE GAS GATHERING, LLC
		
	By:	 	 /s/ David. W. Honeyfield

		 	Name:	 	David. W. Honeyfield
		 	Title:	 	Senior Vice President and Chief Executive Officer

 [Signature Page to Second Supplemental Indenture] 

					
	ULTRA WYOMING, LLC
		
	By:	 	 /s/ David W. Honeyfield

		 	Name:	 	David W. Honeyfield
		 	Title:	 	Senior Vice President and Chief Executive Officer
	
	UPL PINEDALE, LLC
		
	By:	 	 /s/ David W. Honeyfield

		 	Name:	 	David W. Honeyfield
		 	Title:	 	Senior Vice President and Chief Executive Officer
	
	UPL THREE RIVERS HOLDINGS, LLC
		
	By:	 	 /s/ David W. Honeyfield

		 	Name:	 	David W. Honeyfield
		 	Title:	 	Senior Vice President and Chief Executive Officer
	
	ULTRA WYOMING LGS, LLC
		
	By:	 	 /s/ David W. Honeyfield

		 	Name:	 	David W. Honeyfield
		 	Title:	 	Senior Vice President and Chief Executive Officer
	
	WILMINGTON TRUST, NATIONAL ASSOCIATION, as Trustee
		
	By:	 	 /s/ Shawn Goffinet

		 	Name:	 	Shawn Goffinet
		 	Title:	 	Assistant Vice President

  
 [Signature Page to Second
Supplemental Indenture]

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