Document:

EX-4.2

 Exhibit 4.2 
 EXECUTION VERSION 
 FIRST AMENDMENT TO CREDIT
AGREEMENT 
 This FIRST AMENDMENT TO CREDIT AGREEMENT, dated as of April 11, 2013 (this “Amendment”), is
by and among CENTERPOINT ENERGY RESOURCES CORP., a Delaware corporation (the “Borrower”), the Banks (as hereinafter defined) named on the signature pages hereto and CITIBANK, N.A., as administrative agent for the Banks (in such
capacity, the “Administrative Agent”). 
 W I T N E S S E T H: 

WHEREAS, the Borrower, the banks and other financial institutions from time to time parties thereto (collectively, the
“Banks”) and the Administrative Agent are parties to that certain Credit Agreement, dated as of September 9, 2011 (as heretofore amended, supplemented or otherwise modified, the “Credit Agreement”); 

WHEREAS, the Borrower has requested that the Banks agree to amend the Credit Agreement, and the Banks and the Administrative Agent are
agreeable to such request upon the terms and subject to the conditions set forth herein. 
 NOW, THEREFORE, for good and
valuable consideration, the receipt and sufficiency of which are hereby acknowledged, the parties hereto hereby agree as follows: 
 SECTION 1. Definitions. Unless otherwise defined in this Amendment, capitalized terms used in this Amendment which are defined in the Credit Agreement, as amended hereby (the “Amended
Credit Agreement”), shall have the meanings assigned to such terms in the Amended Credit Agreement. The interpretive provisions set forth in Section 1.3 of the Credit Agreement shall apply to this Amendment. 

SECTION 2. Amendments to the Credit Agreement. Subject to the terms and conditions set forth herein and in reliance upon the
representations and warranties herein contained, the Credit Agreement is hereby amended as follows: 
 (a)
Section 1.1 of the Credit Agreement is hereby amended by inserting the following defined terms in their appropriate alphabetical order: 
 “Bronco Group” means, collectively, Bronco Midstream Holdings, LLC and Bronco Midstream Holdings II, LLC, each a Delaware limited liability company. 

“CEFS LLC” means CenterPoint Energy Field Services, LLC, a Delaware limited liability company and a
Wholly-Owned Subsidiary of CenterPoint and the Borrower. 
 “EH II” means Enogex Holdings II
LLC, a Delaware limited liability company. 
 “Enogex” means Enogex LLC, a Delaware limited
liability company. 
 “Enogex Holdings” means Enogex Holdings LLC, a Delaware limited liability
company. 

 “Master Formation Agreement” means the Master Formation
Agreement, dated as of March 14, 2013, by and among CenterPoint, OGE Energy and the Bronco Group, as amended, supplemented or otherwise modified from time to time, but excluding, prior to the consummation of the Midstream MLP/JV Transactions
described in clauses (a) through (g) of the definition thereof, any such amendment, supplement or other modification thereto that is materially adverse to the Banks, unless otherwise approved by the Administrative Agent. 

“Midstream MLP/JV Transactions” means a series of transactions pursuant to which, among other things,
(a) the Borrower contributes the Capital Stock of certain of its Wholly-Owned Subsidiaries that own midstream field services and interstate pipelines assets, and causes a JV Subsidiary to contribute the Capital Stock of a Joint Venture that
owns midstream field services and interstate pipelines assets, to CEFS LLC, (b) OGE Holdings and Bronco Group restructure their ownership of Enogex Holdings to provide that the Capital Stock of Enogex will be held through EH II, (c) CEFS
LLC is converted to a Delaware limited partnership (such converted and renamed entity, the “Midstream JV”), (d) OGE Holdings contributes all of the management interests in EH II owned by OGE Holdings to the general partner of
the Midstream JV in exchange for membership interests in such general partner, (e) OGE Holdings contributes to the Midstream JV all of the economic interests in EH II in exchange for the issuance by the Midstream JV of limited partnership
interests in the Midstream JV, (f) Bronco Group contributes to the Midstream JV all of its economic interests in EH II in exchange for the issuance by the Midstream JV of limited partnership interests in the Midstream JV, (g) upon
completion of and as a result of the transactions described in the foregoing clauses (a) through (f), on the Closing Date (as defined in the Master Formation Agreement), the Borrower obtains not less than 50% of the limited partner interest in
the Midstream JV and not less than 50% of the GP Management Units (as defined in the Master Formation Agreement) (each transaction described in the foregoing clauses (a) through (g) being effected pursuant to the Master Formation
Agreement), and (h) the Midstream JV may consummate an initial public offering as a master limited partnership. 
 “OGE Energy” means OGE Energy Corp., an Oklahoma corporation. 
 “OGE Holdings” means OGE Enogex Holdings LLC, a Delaware limited liability company and a Wholly-Owned Subsidiary of OGE Energy. 

(b) Section 1.1 of the Credit Agreement is hereby further amended by replacing the reference to “(other than clause
(G) thereof)” in the definition of “Permitted MLP/JV Asset Transfer” to “(other than clause (F) thereof)”. 
 (c) Section 7.2(c) of the Credit Agreement is hereby amended and restated in its entirety to read as follows: 
 “(c) Consolidation, Merger or Disposal of Assets. The Borrower will not, and will not permit any Significant Subsidiary to, (i) merge into or consolidate with any other Person;
(ii) liquidate, wind up or dissolve (or suffer any liquidation or dissolution); or (iii)

  
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sell, transfer, lease or otherwise dispose of all or substantially all of its Properties to any Person; provided, however, that (A) the Borrower may merge into, or consolidate
with, any Person if the Borrower is the surviving entity; (B) any Significant Subsidiary may consolidate with or merge into (1) the Borrower if the Borrower is the surviving entity or (2) any other Subsidiary of the Borrower if the
surviving entity is such Significant Subsidiary or a Wholly-Owned Restricted Subsidiary; (C) any Significant Subsidiary may consolidate with or merge into any Person other than the Borrower or another Subsidiary of the Borrower if (1) such
Significant Subsidiary is the surviving entity or (2) such other Person is the surviving entity and becomes a Wholly-Owned Restricted Subsidiary contemporaneously with such consolidation or merger; (D) any Significant Subsidiary may
liquidate, wind up or dissolve if the Properties of such Significant Subsidiary are conveyed, transferred or distributed pursuant to such liquidation, winding up or dissolution to the Borrower or a Wholly-Owned Restricted Subsidiary; (E) any
Significant Subsidiary may sell, transfer, lease or otherwise dispose of all or substantially all of its Properties to the Borrower, to another Wholly-Owned Restricted Subsidiary or to a Person that becomes a Wholly-Owned Restricted Subsidiary
contemporaneously with such sale, transfer, lease or other disposition; (F) the Borrower and any Significant Subsidiary may make Permitted MLP/JV Asset Transfers and (G) the Borrower and any Significant Subsidiary may effect the Midstream
MLP/JV Transactions; provided that (x) in the case of any transaction described in clauses (A) through (G), immediately before and after giving effect to any such merger or consolidation, dissolution or liquidation, or sale,
transfer, lease or other disposition, no Default or Event of Default shall have occurred and be continuing and (y) in the case of any transaction described in foregoing clause (A), (F) or (G) (excluding, in the case of clause (A), any
transaction in which any Subsidiary of the Borrower merges into or consolidates with the Borrower), after giving effect to such transaction, the Borrower shall be in pro forma compliance with Section 7.2(a).” 

(d) Section 7.2(e) of the Credit Agreement is hereby amended and restated in its entirety to read as follows: 

“(e) Sale of Significant Subsidiary Stock. The Borrower will not, and will not permit any Significant Subsidiary to, sell,
assign, transfer or otherwise dispose of any of the Capital Stock of any Significant Subsidiary. Notwithstanding the foregoing provisions of Section 7.2(c) or this Section 7.2(e), (1) the Borrower or any Significant Subsidiary may
sell, assign, transfer or otherwise dispose of (i) any of the Capital Stock of any Significant Subsidiary to the Borrower or to a Wholly-Owned Subsidiary of the Borrower that constitutes a Significant Subsidiary after giving effect to such
transaction and (ii) any of the Capital Stock of any Subsidiary that is not a Significant Subsidiary; (2) any Significant Subsidiary shall have the right to issue, sell, assign, transfer or otherwise dispose of for value its preference or
preferred stock in one or more bona fide transactions to any Person; (3) the Borrower and any Significant Subsidiary may make Permitted MLP/JV Asset Transfers and (4) the Borrower and any Significant Subsidiary may effect the Midstream
MLP/JV Transactions; provided that (A) immediately before and after giving effect to any such sale, assignment, transfer or other disposition described in the foregoing clauses (1), (2), (3) and (4), no Default or Event of Default
shall have occurred and be continuing and (B) in the case of any such Permitted MLP/JV Asset Transfer permitted under the foregoing clause (3) or the Midstream MLP/JV Transactions permitted under the foregoing clause (4), after giving
effect to such Permitted MLP/JV Asset Transfer or the Midstream MLP/JV Transactions, as applicable, the Borrower shall be in pro forma compliance with Section 7.2(a).” 

  
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 SECTION 3. Representations and Warranties. To induce the other parties hereto to
enter into this Amendment, the Borrower represents and warrants that, as of the date hereof: 
 (a) both immediately before and
after giving effect to this Amendment, all representations and warranties of the Borrower contained in Section 6.1 of the Credit Agreement and in the other Loan Documents are true and correct in all material respects (except to the extent that
any representation or warranty is qualified by materiality in the text thereof, in which case such representation or warranty is true and correct in all respects), except for (i) those representations or warranties or parts thereof that, by
their terms, expressly relate solely to a specific date, in which case such representations and warranties are true and correct in all material respects as of such specific date and (ii) the representations and warranties contained in Sections
6.1(j) and (k) of the Credit Agreement; 
 (b) both immediately before and after giving effect to this Amendment, no Default
or Event of Default exists or is continuing; 
 (c) the execution, delivery and performance by the Borrower of this Amendment are
within the Borrower’s corporate powers and have been duly authorized by all necessary corporate action; and 
 (d) this
Amendment has been duly executed and delivered by the Borrower and constitutes a legal, valid and binding obligation of the Borrower, enforceable in accordance with its terms, subject to applicable bankruptcy, insolvency, reorganization, moratorium
or other laws affecting creditors’ rights generally and subject to general principles of equity, regardless of whether considered in a proceeding in equity or at law. 
 SECTION 4. Conditions to Effectiveness. This Amendment shall become effective as of the date first written above when, and only when, each of the following conditions is satisfied (or waived in
accordance with Section 10.1 of the Credit Agreement): 
 (a) the Administrative Agent shall have received counterparts of
this Amendment fully executed and delivered by the Borrower and Banks constituting the Majority Banks; and 
 (b) the
Administrative Agent and the Banks shall have received all fees required to be paid, and all reasonable out-of-pocket expenses required to be paid for which reasonably detailed invoices have been presented to the Borrower on or before the date that
is one Business Day prior to the date hereof. 
 SECTION 5. Governing Law. THIS AMENDMENT AND THE OTHER LOAN DOCUMENTS
SHALL BE GOVERNED BY, AND CONSTRUED AND INTERPRETED IN ACCORDANCE WITH, THE LAWS OF THE STATE OF NEW YORK. 
 SECTION 6.
Counterparts. This Amendment may be executed in any number of counterparts (or counterpart signature pages), each of which counterparts shall be an original but all of which together shall constitute one instrument. Delivery of an executed
signature page of this Amendment by facsimile transmission or other electronic transmission shall be as effective as delivery of a manually executed counterpart hereof. The execution and delivery of this

  
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Amendment by any Bank shall be binding upon each of its successors and assigns (including Transferees of its Commitments and Loans, in whole or in part, prior to the effectiveness hereof) and
binding in respect of all of its Commitments and Loans, including any acquired subsequent to its execution and delivery of this Amendment and prior to the effectiveness hereof. 

SECTION 7. Effect of Amendment. From and after the effectiveness of this Amendment, each reference to “hereof”,
“hereunder”, “herein” and “hereby” and each other similar reference and each reference to “this Agreement” and each other similar reference contained in the Credit Agreement shall refer to the Amended Credit
Agreement. Except as expressly set forth herein, this Amendment shall not by implication or otherwise limit, impair, constitute a waiver of or otherwise affect the rights and remedies of the Administrative Agent or the Banks under the Credit
Agreement or under any other Loan Document, and shall not alter, modify, amend or in any way affect any of the terms, conditions, obligations, covenants or agreements contained in the Credit Agreement or any other Loan Document, all of which are
ratified and affirmed in all respects and shall continue in full force and effect. This Amendment shall constitute a Loan Document for all purposes of the Credit Agreement and the other Loan Documents. 

SECTION 8. Headings. Section and subsection headings in this Amendment are for convenience of reference only, and are not part of,
and are not to be taken into consideration in interpreting, this Amendment. 
 SECTION 9. Entire Agreement. This
Amendment and the other Loan Documents represent the agreement of the Borrower, the Administrative Agent and the Banks with respect to the subject matter hereof, and there are no promises, undertakings, representations or warranties by the
Administrative Agent or any Bank relative to the subject matter hereof not expressly set forth or referred to herein or in the other Loan Documents. 
 [Remainder of Page Intentionally Left Blank; Signature Pages Follow] 

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

			
	CENTERPOINT ENERGY RESOURCES CORP.,
	as the Borrower
		
	By:	 	 /s/ Marc Kilbride

	Name:	 	Marc Kilbride
	Title:	 	Vice President and Treasurer

  
 First
Amendment to Credit Agreement 
 (CERC) 

 
			
	CITIBANK, N.A.,
	as Administrative Agent and as a Bank
		
	By:	 	 /s/ Maureen P. Maroney

	Name:	 	Maureen P. Maroney
	Title:	 	Vice President

  
 First
Amendment to Credit Agreement 
 (CERC) 

 
			
	BANK OF AMERICA, N.A.,
	as a Bank
		
	By:	 	 /s/ William A. Merritt, III

	Name:	 	William A. Merritt, III
	Title:	 	Vice President

  
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Amendment to Credit Agreement 
 (CERC) 

 
			
	JPMORGAN CHASE BANK, N.A.,
	as a Bank
		
	By:	 	 /s/ Bridget Killackey

	Name:	 	Bridget Killackey
	Title:	 	Vice President

  
 First
Amendment to Credit Agreement 
 (CERC) 

 
			
	THE ROYAL BANK OF SCOTLAND PLC,
	as a Bank
		
	By:	 	 /s/ Emily Freedman

	Name:	 	Emily Freedman
	Title:	 	Vice President

  
 First
Amendment to Credit Agreement 
 (CERC) 

 
			
	 BARCLAYS BANK PLC,

	 as a Bank

		
	 By:
	 	 /s/ May Huang

	 Name: 
	 	 May Huang

	 Title:
	 	 AVP

  
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Amendment to Credit Agreement 
 (CERC) 

 
			
	 DEUTSCHE BANK AG NEW YORK BRANCH,
 as a Bank

		
	By:	 	 /s/ Philippe Sandmeier

	Name:	 	Philippe Sandmeier
	Title:	 	Managing Director
		
	By:	 	 /s/ Ming K. Chu

	Name:	 	Ming K. Chu
	Title:	 	Vice President

  
 First
Amendment to Credit Agreement 
 (CERC) 

 
			
	WELLS FARGO BANK, NATIONAL ASSOCIATION, as a Bank
		
	By:	 	 /s/ Sara Olesen

	Name:	 	Sara Olesen
	Title:	 	Assistant Vice President

  
 First
Amendment to Credit Agreement 
 (CERC) 

 
			
	ROYAL BANK OF CANADA,
	as a Bank
		
	By:	 	 /s/ Frank Lambrinos

	Name:	 	Frank Lambrinos
	Title:	 	Authorized Signatory

  
 First
Amendment to Credit Agreement 
 (CERC) 

 
			
	SUNTRUST BANK,
	as a Bank
		
	By:	 	 /s/ Andrew Johnson

	Name:	 	Andrew Johnson
	Title:	 	Director

  
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Amendment to Credit Agreement 
 (CERC) 

 
			
	THE BANK OF TOKYO-MITSUBISHI UFJ, LTD., as a Bank
		
	By:	 	 /s/ Paul V. Farrell

	Name:	 	Paul V. Farrell
	Title:	 	Director

  
 First
Amendment to Credit Agreement 
 (CERC) 

 
			
	UBS AG, STAMFORD BRANCH,
	as a Bank
		
	By:	 	 /s/ Lana Gifas

	Name:	 	Lana Gifas
	Title:	 	Director
		
	By:	 	 /s/ Joselin Fernandes

	Name:	 	Joselin Fernandes
	Title:	 	Associate Director

  
 First
Amendment to Credit Agreement 
 (CERC) 

 
			
	CREDIT SUISSE AG, CAYMAN ISLANDS BRANCH, as a Bank
		
	By:	 	 /s/ Christopher Reo Day

	Name:	 	Christopher Reo Day
	Title:	 	Vice President
		
	By:	 	 /s/ Tyler R. Smith

	Name:	 	Tyler R. Smith
	Title:	 	Associate

  
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Amendment to Credit Agreement 
 (CERC) 

 
			
	GOLDMAN SACHS BANK USA,
	as a Bank
		
	By:	 	 /s/ Michelle Latzoni

	Name:	 	Michelle Latzoni
	Title:	 	Authorized Signatory

  
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Amendment to Credit Agreement 
 (CERC) 

 
			
	MIZUHO CORPORATE BANK (USA),
	as a Bank
		
	By:	 	 /s/ Leon Mo

	Name:	 	Leon Mo
	Title:	 	Senior Vice President

  
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Amendment to Credit Agreement 
 (CERC) 

 
			
	MORGAN STANLEY BANK, N.A.,
	as a Bank
		
	By:	 	 /s/ John Durland

	Name:	 	John Durland
	Title:	 	Authorized Signatory

  
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Amendment to Credit Agreement 
 (CERC) 

 
			
	U.S. BANK NATIONAL ASSOCIATION,
	as a Bank
		
	By:	 	 /s/ James O’Shaughnessy

	Name:	 	James O’Shaughnessy
	Title:	 	VP-Portfolio Manager

  
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Amendment to Credit Agreement 
 (CERC) 

 
			
	COMERICA BANK,
	as a Bank
		
	By:	 	 /s/ Joey Powell

	Name:	 	Joey Powell
	Title:	 	Vice President

  
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Amendment to Credit Agreement 
 (CERC) 

 
			
	PNC BANK, NATIONAL ASSOCIATION,
	as a Bank
		
	By:	 	 /s/ John Bery

	Name:	 	John Bery
	Title:	 	Vice President

  
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Amendment to Credit Agreement 
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	THE NORTHERN TRUST COMPANY,
	as a Bank
		
	By:	 	 /s/ Keith L. Burson

	Name:	 	Keith L. Burson
	Title:	 	Vice President

  
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Amendment to Credit Agreement 
 (CERC)EX-10.1

 Exhibit 10.1 
 April 8, 2013 
 Mr. Jack Sennott 

[Home address] 
 Dear Jack: 

I am pleased to offer you a position with Alleghany Corporation, subject to completion of a background check and Alleghany Board
approval, on the following terms: 
 Position. You will commence employment as an at-will employee
of Alleghany on April 16, 2013. It is expected that the Alleghany Board will, at its meeting on April 16, 2013, elect you to the office of Senior Vice President effective immediately and chief financial officer effective May 8th. You will report to me. 

Salary. $550,000 
 Sign-On Bonus. You will receive sign-on bonus of $180,000, to be paid in four installments (April 16th, June 30, September 30 and December 31) during 2013 subject to your continuous employment
with Alleghany during such period. 
 Annual Incentive. I will recommend that the Alleghany Compensation Committee award
you a 2013 target annual incentive opportunity of $550,000, subject to performance requirements to be approved by the Compensation Committee. In the event that you commence employment later than April 16, 2013, your 2013 incentive will be
pro-rated based upon the actual number of months of employment during 2013. 
 Long-Term Incentive. I will recommend that
the Alleghany Compensation Committee, at its meeting on April 15, 2013, grant you an award of (i) performance shares for the award period 2013 – 2016 with a value equal to $550,000 (100% of salary), subject to growth in stockholder
book value performance criteria as determined by the Compensation Committee (the “2013 Award”), (ii) an award of a number of performance shares for the 2013 – 2015 award period with a value equal to $412,500, subject to growth in
stockholder book value performance criteria comparable to those established for the 2013 Award, (iii) an award of a number of performance shares for the 2013 – 2014 award period with a value equal to $275,000, subject to growth in
stockholder book value performance criteria comparable to those established for the 2013 Award, and (iv) an award of a number of performance shares for the 2013 award period with a value equal to $137,500, subject to growth in stockholder book
value performance criteria comparable to those established for the 2013 Award. In the event that you commence employment later than April 16, 2013, your 2013 Award will be pro-rated based upon the actual number of months of employment during
2013. 

 Other Benefits. You will be entitled to participate in Alleghany’s Deferred
Compensation Plan and, to the extent not frozen or terminated, the Retirement Plan, effective upon commencement of employment, and in all other employee benefit plans, programs, and other arrangements (including Alleghany’s medical, disability
and life insurance plans) in which other officers of Alleghany are generally eligible to participate. 
 Please confirm your
acceptance of our offer by executing the enclosed copy of this letter in the space provided below and return it to me. 
 We
look forward to working with you. 
  

			
	Sincerely,
	
	ALLEGHANY CORPORATION
		
	By:	 	 /s/ Weston M. Hicks

	Name:	 	Weston M. Hicks
	Title:	 	President and chief executive officer

  

	
	AGREED AND ACCEPTED:
	
	 /s/ John L. Sennott, Jr.

	John L. Sennott, Jr.

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