Exhibit 4.16






Exhibit 4.16




FIRST SUPPLEMENTAL INDENTURE




FIRST SUPPLEMENTAL INDENTURE (“First Supplemental Indenture”), dated as of September 27, 2010,
among Brigham Exploration Company, a Delaware corporation (the “Company”), the Guarantors
identified on the signature pages hereto (the “Guarantors”) and Wells Fargo Bank, N.A., as trustee
(the “Trustee”).



WITNESSETH:




WHEREAS, the Company, the Guarantors and the Trustee have entered into an Indenture, dated as
of April 20, 2006 (the “Original Indenture”), governing the Company’s 95/8%
Senior Notes due 2014 (the “Notes”);



WHEREAS, under Section 9.02 of the Original Indenture, the Company, the Guarantors and the
Trustee may amend the Original Indenture with the consent of the Holders of at least a majority in
principal amount of the then outstanding Notes pursuant to the terms set forth therein;



WHEREAS, Holders of a majority in principal amount of outstanding Notes have consented to the
amendments set forth herein in connection with the tender offer and consent solicitation of the
Company commencing on September 13, 2010, with respect to the Notes (the “Tender Offer”);



WHEREAS, the Company and the Guarantors desire to enter into this First Supplemental Indenture
on the date set forth above for the purpose of making the amendments set forth herein, which
amendments will become operative as set forth in Section 4 herein, the execution and delivery of
this First Supplemental Indenture has been authorized by the Board of Directors of the Company and
of each Guarantor, and the Company and the Guarantors have requested the Trustee join with them in
the execution and delivery of this First Supplemental Indenture, and in accordance with Section
9.06 and Section 12.04 of the Original Indenture have delivered an Opinion of Counsel to the
Trustee stating that the First Supplemental Indenture is authorized or permitted by the Original
Indenture and that all conditions precedent to its execution have been complied with; and



WHEREAS, all other conditions and requirements necessary to make this First Supplemental
Indenture a valid, binding and legal instrument enforceable in accordance with its terms have been
performed and fulfilled by the parties hereto, and the execution and delivery thereof have been in
all respects duly authorized by the parties hereto.



NOW, THEREFORE, for and in consideration of the foregoing premises, it is mutually covenanted
and agreed, for the benefit of each other and the equal and proportionate benefit of all Holders of
the Notes, as follows:



1. DEFINITIONS. For all purposes of the Original Indenture and this First Supplemental
Indenture, except as otherwise expressly provided or unless the context otherwise requires:



(a) References. The terms “herein,” “hereof” and other words of similar import refer to the
Original Indenture and this First Supplemental Indenture as a whole and not to any particular
article, section or other subdivision; and



(b) Capitalized Terms. All capitalized terms used in this First Supplemental Indenture but
not defined herein shall have the meanings assigned to such terms in the Original Indenture.



2. ELIMINATION AND AMENDMENT OF CERTAIN DEFINED TERMS IN ARTICLE I OF THE ORIGINAL INDENTURE.
From and as of the Operational Time (as defined in Section 4(b) of this First Supplemental
Indenture), any defined terms appearing in Article One of the Original Indenture or elsewhere in
the Original Indenture, and all references thereto, that are used solely in the sections,
subsections or provisions of the Original Indenture deleted from the Original Indenture by virtue
of Section 3 of this First Supplemental Indenture shall be deleted in their entireties from Section
1.01 of the Original Indenture.


 


 









 





3. AMENDMENT OF CERTAIN PROVISIONS OF ARTICLES 3, 4 AND 6 AND OTHER RELATED PROVISIONS OF THE
ORIGINAL INDENTURE AND THE NOTES.



(a) Amendment of Article Three of the Original Indenture. From and as of the Operational
Time, Sections 3.01, 3.02, 3.03, and 3.07 of the Original Indenture shall be amended by
substituting “3” for “30” each time such number appears therein.



(b) Amendment of Article Four of Original Indenture. From and as of the Operational Time,
Article 4 of the Original Indenture shall be amended by deleting Sections 4.03, 4.04, 4.05, 4.06,
4.07, 4.08, 4.09, 4.10, 4.12, 4.13, 4.14, 4.15, 4.16, 4.17, 4.18, 4.19 and 4.21 in their
entireties, together with any references thereto in the Original Indenture.



(c) Amendment of Article Six of the Original Indenture. From and as of the Operational Time,
Article 6 of the Original Indenture shall be amended by: (i) deleting clauses (4), (5), (6), (7),
(8) and (9) of Section 6.01 in their entireties, together with any references thereto in the
Original Indenture; (ii) adding “and” after “;” at the end of Section 6.01(2); and (iii) deleting
”;” at the end of Section 6.01(3) and substituting “.” therefor.



(d) Amendment of Exhibits and the Notes. From and as of the Operational Time, Exhibits A1
and A2 of the Original Indenture and the Notes shall be amended by substituting “3” for “30” each
time such number appears in Sections 5 and 8 thereof.



(e) Amendment of Additional Provisions of Original Indenture and Notes. From and as of the
Operational Time, any and all additional provisions of the Original Indenture and Notes shall be
deemed amended to reflect the intentions of the amendments provided for in this Section 3 and
elsewhere herein.




4. EFFECT OF FIRST SUPPLEMENTAL INDENTURE; OPERATION OF AMENDMENTS.



(a) Effect of First Supplemental Indenture. In accordance with Article Nine of the Original
Indenture, upon the execution of this First Supplemental Indenture, the Original Indenture shall be
modified in accordance herewith, and this First Supplemental Indenture shall form a part of the
Original Indenture for all purposes; and every Holder of the Notes heretofore authenticated and
delivered under the Original Indenture shall be bound hereby. Except as modified by this First
Supplemental Indenture, the Original Indenture and the Notes, and the rights of the Holders of the
Notes thereunder, shall remain unchanged and in full force and effect.



(b) Operation of Amendments. The provisions of this First Supplemental Indenture shall not
become operative until the date and time (such date and time, the “Operational Time”) the Company
notifies (in writing) i-Deal LLC, as depositary for the Notes under the Tender Offer (the
“Depositary”), that the Company has purchased Notes tendered and not withdrawn pursuant to the
Tender Offer. In the event the Company notifies (in writing) the Depositary that it has withdrawn
or terminated the Tender Offer prior to the Operational Time, this First Supplemental Indenture
shall be terminated and be of no force or effect and the Original Indenture shall not be modified
hereby. The Company shall promptly notify the Trustee in writing of any notice it gives to the
Depositary.



5. MATTERS CONCERNING THE TRUSTEE. The Trustee accepts the trusts of the Original Indenture,
as amended and supplemented by this First Supplemental Indenture, and agrees to perform the same,
but only upon the terms and conditions set forth in the Original Indenture, as amended and
supplemented by this First Supplemental Indenture, to which the parties hereto and the Holders from
time to time of the Notes agree and, except as expressly set forth in the Original Indenture, as
amended and supplemented by this First Supplemental Indenture, shall incur no liability or
responsibility in respect thereof. Without limiting the generality of the foregoing, the recitals
contained herein shall be taken as the statements of the Company and the Guarantors, and the
Trustee assumes no responsibility for their correctness, and the Trustee makes no representation as
to the validity or sufficiency of the Tender Offer, any consent solicitation statement or other
document used in connection with the Tender Offer, this First Supplemental Indenture or any
consents thereto. This First Supplemental Indenture is executed and accepted by the Trustee subject
to all the terms and conditions set forth in the Original 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 entering into this First Supplemental Indenture, the Trustee shall be
entitled to the benefit of every provision of the Original Indenture relating to the conduct or
affecting the liability or affording protection to the Trustee, whether or not elsewhere herein so
provided.


 


 









 





6. RATIFICATION AND CONFIRMATION OF THE ORIGINAL INDENTURE. Except as expressly amended
hereby, the Original Indenture is in all respects ratified and confirmed and all the terms,
provisions and conditions thereof shall be and remain in full force and effect.




7. MISCELLANEOUS.



(a) Binding Effect. All agreements of the Company in this First Supplemental Indenture shall
be binding upon the Company’s successors. All agreements of the Trustee in this First Supplemental
Indenture shall be binding upon its successors.



(b) Governing Law. This First Supplemental Indenture shall be deemed to be a contract made
under the laws of the State of New York and for all purposes shall be governed by and construed in
accordance with the laws of the State of New York.



(c) Conflict with Trust Indenture Act of 1939. If and to the extent that any provision of
this First Supplemental Indenture limits, qualifies or conflicts with the duties imposed by
Sections 310-317 of the Trust Indenture Act of 1939, as amended (the “Trust Indenture Act”), by
operation of Section 318(c) of the Trust Indenture Act, the imposed duties shall control.



(d) Headings for Convenience of Reference. The titles and headings of the sections of this
First Supplemental Indenture have been inserted for convenience of reference only, are not to be
considered a part hereof and shall in no way modify or restrict any of the terms or provisions
hereof.



(e) Counterparts. This First Supplemental Indenture may be executed in any number of
counterparts, each of which so executed shall be deemed to be an original, but such counterparts
shall constitute but one and the same agreement.



(f) Severability. In case any provision of this First Supplemental Indenture shall be
determined to be invalid, illegal or unenforceable, the validity, legality and enforceability of
the remaining provisions hereof or of the Original Indenture shall not in any way be affected or
impaired thereby.



(g) Effect Upon Original Indenture. This First Supplemental Indenture shall form a part of
Original Indenture for all purposes, and every Holder of Notes heretofore or hereafter
authenticated and delivered shall be bound hereby.



(signature page follows)




 


 









 







IN WITNESS WHEREOF, the Company, the Guarantors and the Trustee have caused this First
Supplemental Indenture to be duly executed by their respective officers thereunto duly authorized
and their respective corporate seals, duly attested, to be hereunto affixed all as of the day and
the year first above written.



	 	 	 	 	 	 	 
	 	 	BRIGHAM EXPLORATION COMPANY,
a Delaware Corporation	 	 
	 
	 	 	 	 	 	 
	 

	 	By:
	 	/s/ Ben M. Brigham
 

Name: Ben M. Brigham
	 	 
	 

	 	 	 	Title: President, Chief Executive Officer and	 	 
	 

	 	 	 	Chairman of the Board	 	 
	 
	 	 	 	 	 	 
	 	 	BRIGHAM, INC. a Nevada Corporation	 	 
	 
	 	 	 	 	 	 
	 

	 	By:
	 	/s/ Ben M. Brigham
 

Name: Ben M. Brigham
	 	 
	 

	 	 	 	Title: President	 	 
	 
	 	 	 	 	 	 
	 	 	BRIGHAM OIL & GAS, L.P.,
a Delaware limited partnership	 	 
	 
	 	 	 	 	 	 
	 	 	By: BRIGHAM, INC., its managing general partner	 	 
	 
	 	 	 	 	 	 
	 

	 	By:
	 	/s/ Ben M. Brigham
 

Name: Ben M. Brigham
	 	 
	 

	 	 	 	Title: President	 	 
	 
	 	 	 	 	 	 
	 	 	WELLS FARGO BANK, N.A., as Trustee	 	 
	 
	 	 	 	 	 	 
	 

	 	By:
	 	/s/ Jayne Sillman
 

Name: Jayne Sillman
	 	 
	 

	 	 	 	Title: Vice President