Document:

Exhibit

EXHIBIT 10.19

FOURTH AMENDED AND RESTATED
INDEMNIFICATION AGREEMENT (WGR)
This FOURTH AMENDED AND RESTATED INDEMNIFICATION AGREEMENT (WGR) (this “Agreement”) is made and entered into as of March 14, 2016, by and between Western Gas Resources, Inc., a Delaware corporation (“Indemnitor”) and Western Gas Holdings, LLC, a Delaware limited liability company (“Indemnitee”).
WITNESSETH:
WHEREAS, Western Gas Partners, LP, a Delaware limited partnership (“Borrower”), entered into a Revolving Credit Agreement (“Existing Revolving Credit Agreement”) dated as of October 29, 2009, by and among the Borrower, Wells Fargo Bank, National Association, as Administrative Agent, Bank of America, N.A. and DnB NOR Bank ASA, New York Branch, as Syndication Agents, The Bank of Nova Scotia and BNP Paribas, as Documentation Agents, and the Lenders party thereto, as amended as of May 5, 2010, among the Borrower, Wells Fargo Bank, National Association, as Administrative Agent, and the Lenders party thereto; 
WHEREAS, Borrower entered into the Term Loan Agreement (“Existing Term Loan Agreement”) dated as of August 2, 2010, by and among the Borrower, Wells Fargo Bank, National Association, as Administrative Agent, DnB NOR Bank ASA, New York Branch, as Syndication Agent, U.S. Bank National Association, as Documentation Agent, and the Lenders party thereto; 
WHEREAS, Borrower entered into the Amended and Restated Revolving Credit Agreement (“Restated Credit Agreement”) dated as of March 24, 2011, by and among the Borrower, Wells Fargo Bank, National Association, individually and as Administrative Agent, DnB NOR Bank ASA, as Syndication Agent, Bank of Montreal, Comerica Bank and The Bank of Tokyo-Mitsubishi UFJ, Ltd., as Documentation Agents, and the Lenders party thereto; 
WHEREAS, the proceeds of Loans under the Restated Credit Agreement (“Revolving Loans”) were used to refinance outstanding Indebtedness under the Existing Revolving Credit Agreement and the Existing Term Loan Agreement and for other general corporate purposes;
WHEREAS, Borrower entered into the Indenture (“Indenture”) dated as of May 18, 2011 by and among Borrower and Wells Fargo Bank, National Association, as Trustee;
WHEREAS, under the Indenture, Borrower has established two series of Debt Securities (as defined in the Indenture) and may establish additional series of Debt Securities at any time in accordance with the provisions of the Indenture; 
WHEREAS, Borrower entered into the Second Amended and Restated Revolving Credit Agreement (“Second Restated Credit Agreement”) dated as of February 26, 2014, by and among the Borrower, Wells Fargo Bank, National Association, individually and as Administrative Agent, DNB Bank ASA, as Syndication Agent, The Bank of Tokyo-Mitsubishi UFJ, Ltd., Citibank, N.A., 

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The Royal Bank of Scotland PLC, and U.S. Bank National Association as Documentation Agents, and the Lenders party thereto, pursuant to which the borrowing limit provided for in the Restated Credit Agreement was increased;
WHEREAS, the proceeds of Debt Securities under the Indenture have been and will be used to refinance outstanding Revolving Loans under the Restated Credit Agreement and the Second Restated Credit Agreement, and for other general corporate purposes;
WHEREAS, Indemnitor owns the general partner of, and is a limited partner in, Western Gas Equity Partners, LP, a Delaware limited partnership (“WGP”);
WHEREAS, WGP is a limited partner of Borrower;
WHEREAS, Indemnitor, through Borrower and WGP or its predecessor, received proceeds of borrowings under the Restated Credit Agreement and may receive proceeds of borrowings under the Second Restated Credit Agreement and Indenture in the future;
WHEREAS, Indemnitee is the general partner of Borrower; 
WHEREAS, Indemnitee may, in such capacity, incur certain liabilities in connection with the Restated Credit Agreement and Indenture, including, without limitation, the obligation to pay the Principal Amount of Revolving Loans and Debt Securities; and
WHEREAS, the Indemnitor and Indemnitee entered into the Indemnification Agreement dated July 29, 2010 (the “Original Indemnification Agreement”), the Amended and Restated Indemnification Agreement dated March 24, 2011 (the “Restated Indemnification Agreement”), the Amended Indemnification Agreement dated May 18, 2011 (the “Amended Indemnification Agreement”), the Third Amended and Restated Indemnification Agreement (WGR) dated March 1, 2013 and amended pursuant to the First Amendment to the Third Amended and Restated Indemnification Agreement (WGR) dated March 3, 2014 (as amended, the “Third Amended Indemnification Agreement”), and the parties have agreed to amend the Third Amended Indemnification Agreement as set forth herein to exclude certain claims more fully described herein from the scope of Indemnitor’s obligations hereunder.
NOW, THEREFORE, in consideration of the above premises and for other good and valuable consideration, the receipt and sufficiency of which are hereby acknowledged, the parties hereto agree that the Amended Indemnification Agreement is amended and restated as follows:

Section 1    Certain Definitions.  As used in this Agreement:

		
	1.1
	“Excluded Claims” means any and all amounts for which indemnification is provided pursuant to an Indemnification Agreement.

		
	1.2
	“Indemnification Agreement” means an Indemnification Agreement set forth on Schedule A hereto, as such Schedule A may be amended from time to time.

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	1.3
	“Lender Claim” means any and all claims, damages, losses, liabilities, costs, or expenses whatsoever (including without limitation attorneys’ fees and expenses) which Indemnitee may incur (or which may be claimed against Indemnitee by any person or entity whatsoever), by reason of, or arising out of, any Proceeding against Borrower or Indemnitee in connection with the obligations of the Borrower under the Second Restated Credit Agreement and Indenture, other than Excluded Claims and only to the extent not satisfied by the assets of the Borrower.

		
	1.4
	“Lender Claimant” means the Administrative Agent, the Issuing Bank, a Syndication Agent, the Documentation Agent, the Swingline Lender, the Trustee, any Lender, any Holder, any Related Party of the foregoing, or any other Person that may assert a Lender Claim.

		
	1.5
	“Proceeding” means any threatened, pending or completed action, suit, claim, arbitration, alternate dispute resolution mechanism, investigation, inquiry, administrative hearing or any other actual, threatened or completed proceeding, whether made by or brought in the right of a Lender Claimant or otherwise, in which Indemnitee or Borrower was, is or will be involved as a party or otherwise.

		
	1.6
	Capitalized terms used and not otherwise defined herein shall have the meanings ascribed to such terms in the Second Restated Credit Agreement or the Indenture. 

Section 2    Indemnity.

		
	2.1
	Indemnification by Indemnitor.  Subject to the limitations set forth in Section 2.2 below, Indemnitor shall indemnify and hold harmless Indemnitee from and against any Lender Claim.

		
	2.2
	Conditions Precedent.  Notwithstanding anything contained in Section 2.1 to the contrary, the Indemnitor shall not have any indemnification obligation under this Agreement unless Indemnitee has exhausted all of its remedies, if any, under the Partnership Agreement and under applicable law to collect from Borrower the amount of any Lender Claim; provided, however, that Indemnitee need not exhaust any remedies against Borrower to the extent Indemnitee reasonably determines that the expense anticipated to be incurred by Indemnitee in pursuing such claim against Borrower with respect to collection of the amount of the Lender Claim would exceed the anticipated recovery from Borrower with respect to such claim.  

2.3    Lender Claims.

		
	(a) 
	Notice of Lender Claim.  If any Lender Claimant notifies Indemnitee with respect to any Lender Claim, then Indemnitee will promptly give written notice to Indemnitor; provided, however, that no delay on the part of Indemnitee in notifying Indemnitor will relieve Indemnitee from any obligation under this Section 2.3(a).

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	(b) 
	Assumption of Defense, etc.  Indemnitor will be entitled to participate in the defense of any Lender Claim that is the subject of a notice given by Indemnitee pursuant to Section 2.3(a).  In addition, Indemnitor will have the right to assume the defense of such Lender Claim with counsel of its choice reasonably satisfactory to Indemnitee so long as (i) Indemnitor gives written notice to Indemnitee within fifteen (15) days after Indemnitee has given notice of the Lender Claim that Indemnitor will indemnify Indemnitee from and against the entirety of the Lender Claim; (ii) Indemnitor provides Indemnitee with evidence reasonably acceptable to Indemnitee that Indemnitor will have adequate financial resources to defend against the Lender Claim and fulfill its indemnification obligations hereunder; (iii) Indemnitee has not been advised by counsel that an actual or potential conflict exists between Indemnitee and Indemnitor in connection with the defense of the Lender Claim; and (iv) settlement of an adverse judgment with respect to, or Indemnitor’s conduct of the defense of, the Lender Claim is not, in the good faith judgment of Indemnitee, likely to be adverse to Indemnitee’s reputation or continuing business interests.  Indemnitee may retain separate co-counsel at its sole cost and expense and participate in the defense of the Lender Claim. 

		
	(c) 
	Limitations on Indemnitor.  Indemnitor will not consent to the entry of any judgment or enter into any compromise or settlement with respect to the Lender Claim without the prior written consent of Indemnitee unless such judgment, compromise or settlement (i) provides for the payment by Indemnitor of money as sole relief for the Lender Claimant and (ii) involves no finding or admission of any violation of law.

		
	(d) 
	Indemnitee’s Control.  If Indemnitor does not deliver to Indemnitee the notice contemplated by Section 2.3(b) within fifteen (15) days after Indemnitee has given notice of the Lender Claim pursuant to Section 2.3(a), or otherwise at any time fails to conduct the defense of the Lender Claim actively and diligently, Indemnitee may defend the Lender Claim in a good faith and reasonable manner, and may consent to the entry of any judgment or enter into any compromise or settlement with respect to the Lender Claim in any manner it may deem appropriate (and Indemnitee need not consult with, or obtain any consent from, Indemnitor in connection therewith).

		
	2.4
	Procedure for Notification.  Subject to Section 2.3, to obtain indemnification under this Agreement, Indemnitee shall submit to Indemnitor a written request, including therein or therewith such documentation and information as is reasonably available to Indemnitee and is reasonably necessary to determine whether and to what extent Indemnitee is entitled to indemnification under this Agreement.  The delay or omission to notify Indemnitor will not relieve Indemnitor from any liability which it may have to Indemnitee otherwise than under this Agreement.

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	2.5
	Presumption.  It shall be presumed that Indemnitee is entitled to indemnification under this Agreement if Indemnitee has submitted a request for indemnification in accordance with Section 2.3(a), and Indemnitor shall, to the fullest extent not prohibited by law, have the burden of proof to overcome that presumption in connection with the making by any person, persons or entity of any determination contrary to that presumption.

		
	2.6
	Payment and Set-Off.  Indemnitor shall make any indemnification payment required under this Agreement promptly following request therefor (or, in the event that Indemnitor elects to participate in or assume the defense of a Lender Claim in accordance with this Section 2, promptly after any settlement or entry of any final judgment with respect to such Lender Claim), subject to Indemnitor’s right to rebut the presumption set forth in Section 2.5.  Indemnitee may set off against any amounts that it must pay to Indemnitor under any agreement or instrument any amounts that Indemnitor must pay to Indemnitee under this Agreement.

Section 3    Indemnitor Covenants.

		
	3.1
	Maintenance of Minimum Net Worth.  Indemnitor covenants and agrees with Indemnitee that it shall maintain at all times a net worth (determined without regard to Indemnitor’s limited partner interest in Borrower) of no less than the maximum amount of any Lender Claim for which Indemnitee could seek indemnification pursuant to Section 2.1 hereof should an event described in Section 1.1 hereof occur; provided that the amount of such potential Lender Claim shall be determined without regard to any assets of the Borrower that could be used to satisfy such potential Lender Claim.

		
	3.2
	Books and Records; Inspections and Audits.  Indemnitor shall keep, and will cause each of its Subsidiaries (if any) to keep, complete and accurate books and records of its transactions in accordance with good accounting practices on the basis of GAAP.  Indemnitee may, upon thirty (30) days’ written notice to Indemnitor) (but in no event more than once each fiscal year), request that an audit of Indemnitor’s books and records be performed by be performed (at Indemnitee’s sole expense), in order to provide Indemnitee with such assurance as it deems reasonable and necessary with respect to Indemnitor’s financial condition.  

		
	Section 4
	Waiver of Right to Subrogation.  In the event of any payment under this Agreement, Indemnitor expressly waives any right to subrogation with respect to any of the rights of recovery of Indemnitee or any Lender Claimant. Indemnitor also expressly waives any right to indemnification it may have under the Partnership Agreement with respect to any payment under this Agreement.

		
	Section 5
	Survival.  The provisions of this Agreement shall remain in full force and effect notwithstanding termination of the Second Restated Credit Agreement or Indenture, 

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any of the Loan Documents, or any agreement related thereto or related to the Transactions, so long as any Lender Claim remains outstanding.

		
	Section 6
	Severability.  If any term or provision of this Agreement shall be held to be illegal, invalid or unenforceable in any respect, then such term or provision shall be fully severable from this Agreement, this Agreement shall be construed and enforced as if such illegal, invalid or unenforceable term or provision had never been a part of this Agreement, and the remaining terms and provisions of this Agreement shall remain in full force and effect and shall not be affected by such illegal, invalid or unenforceable term or provision or by its severance from this Agreement.

		
	Section 7
	Entire Agreement.  This Agreement constitutes the entire agreement between the parties hereto pertaining to the subject matter hereof, and any and all other written or oral agreements relating to the subject matter hereof existing between the parties hereto are expressly cancelled.  For the avoidance of doubt, nothing in this Section 7 shall be deemed to invalidate any provision of the Partnership Agreement.

		
	Section 8
	Successors and Assigns.  Indemnitor agrees that all the rights, benefits and privileges herein and hereby conferred upon Indemnitee shall vest in, and be enforceable by, Indemnitee and its successors and assigns, and shall bind Indemnitor’s successors and assigns.

		
	Section 9
	Notices.  All notices, requests, demands and other communications under this Agreement shall be in writing and shall be deemed to have been duly given if (a) delivered by hand and receipted for by the party to whom said notice or other communication shall have been directed, (b) mailed by certified or registered mail with postage prepaid, on the third business day after the date on which it is so mailed, (c) mailed by reputable overnight courier and receipted for by the party to whom said notice or other communication shall have been directed or (d) sent by facsimile transmission, with receipt of oral confirmation that such transmission has been received:

		
	a.
	If to Indemnitee to:

Western Gas Holdings, LLC
Attn:  President and Chief Executive Officer
1201 Lake Robbins Drive
The Woodlands, Texas  77380

		
	b.
	If to Indemnitor to:

Western Gas Resources, Inc.
Attn:  President
1201 Lake Robbins Drive
The Woodlands, Texas  77380

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or to any other address as may have been furnished by Indemnitee or Indemnitor to the other party.

		
	Section 10
	Counterparts.  This Agreement may be executed in counterparts, each of which shall be deemed to be an original, and all of which, taken together, shall be deemed to be one and the same Agreement

		
	Section 11
	Applicable Law.  This Agreement shall be governed and construed in accordance with the laws of the State of New York without regard to the conflict of laws principles thereof.  The parties hereby irrevocably consent to the personal jurisdiction of the Federal and State courts located in New York, and waive any defense based upon improper venue, inconvenient venue or lack of personal jurisdiction.

[Signature Page Follows]

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IN WITNESS WHEREOF, the parties hereto have executed and delivered this Agreement as of the date first written above.

	
			
	 
	WESTERN GAS RESOURCES, INC.

	 
	 
	 

	 
	 
	 

	 
	By:
	/s/ Albert L. Richey

	 
	Name:
	Albert L. Richey

	 
	Title:
	Senior Vice President and Treasurer

	
			
	 
	WESTERN GAS HOLDINGS, LLC

	 
	 
	 

	 
	 
	 

	 
	By:
	/s/ Donald R. Sinclair

	 
	Name:
	Donald R. Sinclair

	 
	Title:
	President and Chief Executive Officer

SCHEDULE A
To
FOURTH AMENDED AND RESTATED
INDEMNIFICATION AGREEMENT (WGR)
As of March 11, 2016, the Indemnification Agreements referred to in Section 1.1 consist of the following:
		
	1.
	The AMH Indemnification Agreement dated March 3, 2014 and entered into by and between APC Midstream Holdings LLC and Indemnitee.

		
	2.
	The KWC Indemnification Agreement dated March 14, 2016 and entered into by and between Kerr-McGee Worldwide Corporation and Indemnitee.Exhibit

EXHIBIT 10.21

KWC INDEMNIFICATION AGREEMENT
This KWC INDEMNIFICATION AGREEMENT (this “Agreement”) is made and entered into as of March 14, 2016, by and between Kerr-McGee Worldwide Corporation, a Delaware corporation (“Indemnitor”), and Western Gas Holdings, LLC, a Delaware limited liability company (“Indemnitee”).
W I T N E S S E T H:
WHEREAS, Western Gas Partners, LP, a Delaware limited partnership (“Borrower”), entered into the Amended and Restated Revolving Credit Agreement (“Credit Agreement”) dated as of March 24, 2011, by and among the Borrower, Wells Fargo Bank, National Association, individually and as Administrative Agent, DnB NOR Bank ASA, as Syndication Agent, Bank of Montreal, Comerica Bank and The Bank of Tokyo-Mitsubishi UFJ, Ltd., as Documentation Agents, and the Lenders party thereto; 
WHEREAS, Revolving Loans under the Credit Agreement were made in connection with Borrower’s acquisition of certain midstream assets in (i) AMI Area A of Northern Pennsylvania (“Area A Loan”) and (ii) AMI Area B of Northern Pennsylvania (“Area B Loan”); 
WHEREAS, the Credit Agreement was amended and restated pursuant to the Second Amended and Restated Revolving Credit Agreement (“Restated Credit Agreement”) dated as of February 28, 2014, by and among the Borrower, Wells Fargo Bank, National Association, individually and as Administrative Agent, DNB Bank ASA, as Syndication Agent, The Bank of Tokyo-Mitsubishi UFJ, Ltd., Citibank, N.A., The Royal Bank of Scotland PLC, and U.S. Bank National Association as Documentation Agents, and the Lenders party thereto;
WHEREAS, Indemnitor owns 100% of the limited liability company interests of Anadarko Marcellus Midstream, L.L.C. (“AMM”), which is a disregarded entity for federal income tax purposes;
WHEREAS, Indemnitor acquired 100% of the limited liability company interests of AMM (the “AMM Interests”) pursuant to the merger of Anadarko USH2 LLC, a Delaware limited liability company (“USH2”), with and into Indemnitor on December 23, 2015;
WHEREAS, USH2 acquired the AMM Interests from Anadarko E&P Onshore LLC, a Delaware limited liability company (“AEP”), on April 1, 2013;
WHEREAS, AMM is a limited partner of Borrower;
WHEREAS, AEP, through a distribution received from AMM, received proceeds of borrowings made pursuant to the Area A Loan;
WHEREAS, the Area B Loan was repaid on May 17, 2013;

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WHEREAS, Indemnitee is the general partner of Borrower; 
WHEREAS, Indemnitee may, in such capacity, incur certain liabilities in connection with the Restated Credit Agreement, including, without limitation, the obligation to pay the Principal Amount of the Area A Loan; 
WHEREAS, Borrower entered into the Indenture (“Indenture”) dated as of May 18, 2011, by and among Borrower and Wells Fargo Bank, National Association, as Trustee;
WHEREAS, under the Indenture, Borrower may establish a new series of Debt Securities (as defined in the Indenture) at any time in accordance with the provisions of the Indenture; 
WHEREAS, the proceeds of Debt Securities under the Indenture may be used to refinance outstanding Revolving Loans, including the Area A Loan, and for other general corporate purposes;
WHEREAS, AEP and Indemnitee entered into the AEP Indemnification Agreement as of March 1, 2013 (the “AEP Indemnification Agreement”) pursuant to which AEP indemnified Indemnitee for future claims that might be made against Indemnitee with respect to the Area A Loan or any indebtedness incurred by Borrower to refinance indebtedness incurred pursuant to the Area A Loan using Debt Securities;
WHEREAS, AEP and USH2 entered into an Assignment effective as of 6:20 a.m. Eastern Daylight Time, on April 1, 2013 (the “Assignment”) pursuant to which AEP assigned, transferred, and conveyed to USH2 all of AEP’s rights, duties and obligations under the AEP Indemnification Agreement (the “Assigned AEP Rights and Obligations”), and Indemnitor assumed all of the Assigned AEP Rights and Obligations;
WHEREAS, USH2 and Indemnitee entered into the USH2 Indemnification Agreement on March 3, 2014 (the “USH2 Indemnification Agreement”) pursuant to which USH2 indemnified Indemnitee for future claims that might be made against Indemnitee with respect to the Area A Loan or any indebtedness incurred by Borrower to refinance indebtedness incurred pursuant to the Area A Loan using Debt Securities;
WHEREAS, USH2 merged with and into Indemnitor on December 23, 2015 pursuant to the Agreement of Merger of Anadarko USH2 LLC With and Into Kerr-McGee Worldwide Corporation entered into as of November 16, 2015 (the “Merger Agreement”), pursuant to which USH2 transferred and conveyed to Indemnitor all of USH2’s rights, duties and obligations under the USH2 Indemnification Agreement (the “Assigned USH2 Rights and Obligations”), and Indemnitor assumed all of the Assigned USH2 Rights and Obligations; and
WHEREAS, the Indemnitor and Indemnitee wish to enter into an agreement to further memorialize and evidence Indemnitor’s assumption of the Assigned USH2 Rights and

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Obligations pursuant to the Merger Agreement and provide for the indemnification by Indemnitor of Indemnitee for future claims that might be made against Indemnitee with respect to the Area A Loan or any indebtedness incurred by Borrower to refinance Indebtedness incurred pursuant to the Area A Loan using Debt Securities.
NOW, THEREFORE, in consideration of the above premises and for other good and valuable consideration, the receipt and sufficiency of which are hereby acknowledged, the parties hereto agree as follows:
Section 1    Certain Definitions.  As used in this Agreement:

		
	1.1
	“Lender Claim” means any and all claims, damages, losses, liabilities, costs, or expenses whatsoever (including without limitation attorneys’ fees and expenses) which Indemnitee may incur (or which may be claimed against Indemnitee by any person or entity whatsoever), by reason of, or arising out of, any Proceeding against Borrower or Indemnitee in connection with (a) the obligations of the Borrower under the Restated Credit Agreement, but solely to the extent attributable to the Area A Loan or any indebtedness incurred by Borrower to refinance Indebtedness incurred pursuant to the Area A Loan and (b) obligations of Borrower for Debt Securities issued to refinance the obligations enumerated in clause (a) of this definition, in either case only to the extent not otherwise satisfied by the assets of the Borrower.

		
	1.2
	“Lender Claimant” means the Administrative Agent, the Issuing Bank, the Syndication Agent, the Documentation Agent, the Swingline Lender, the Trustee, any Lender, any Holder, any Related Party of the foregoing, or any other Person that may assert a Lender Claim.

		
	1.3
	“Proceeding” means any threatened, pending or completed action, suit, claim, arbitration, alternate dispute resolution mechanism, investigation, inquiry, administrative hearing or any other actual, threatened or completed proceeding, whether made by or brought in the right of a Lender Claimant or otherwise, in which Indemnitee or Borrower was, is or will be involved as a party or otherwise.

		
	1.4
	Capitalized terms used and not otherwise defined herein shall have the meanings ascribed to such terms in the Restated Credit Agreement or the Indenture. 

Section 2    Indemnity.  

		
	2.1
	Indemnification by Indemnitor.  Subject to the limitations set forth in Section 2.2 below, Indemnitor shall indemnify and hold harmless Indemnitee from and against any Lender Claim.  The indemnification obligation of Indemnitor pursuant to this Section 2.1 constitutes a continuation of the Assigned USH2 Rights and Obligations assumed by Indemnitor pursuant to the Merger Agreement and Indemnitor’s agreement therein to be bound by the same terms and conditions in the USH2 

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Indemnification Agreement that applied to USH2 with respect to the Assigned USH2 Rights and Obligations.  

		
	2.2
	Conditions Precedent.  Notwithstanding anything contained in Section 2.1 to the contrary, the Indemnitor shall not have any indemnification obligation under this Agreement unless Indemnitee has exhausted all of its remedies, if any, under the Partnership Agreement and under applicable law to collect from Borrower the amount of any Lender Claim; provided, however, that Indemnitee need not exhaust any remedies against Borrower to the extent Indemnitee reasonably determines that the expense anticipated to be incurred by Indemnitee in pursuing such claim against Borrower with respect to collection of the amount of the Lender Claim would exceed the anticipated recovery from Borrower with respect to such claim.  

		
	2.3
	Lender Claims.

		
	(a) 
	Notice of Lender Claim.  If any Lender Claimant notifies Indemnitee with respect to any Lender Claim, then Indemnitee will promptly give written notice to Indemnitor; provided, however, that no delay on the part of Indemnitee in notifying Indemnitor will relieve Indemnitor from any obligation under this Section 2.3(a).

		
	(b) 
	Assumption of Defense, etc.  Indemnitor will be entitled to participate in the defense of any Lender Claim that is the subject of a notice given by Indemnitee pursuant to Section 2.3(a).  In addition, Indemnitor will have the right to assume the defense of such Lender Claim with counsel of its choice reasonably satisfactory to Indemnitee so long as (i) Indemnitor gives written notice to Indemnitee within fifteen (15) days after Indemnitee has given notice of the Lender Claim that Indemnitor will indemnify Indemnitee from and against the entirety of the Lender Claim; (ii) Indemnitor provides Indemnitee with evidence reasonably acceptable to Indemnitee that Indemnitor will have adequate financial resources to defend against the Lender Claim and fulfill its indemnification obligations hereunder; (iii) Indemnitee has not been advised by counsel that an actual or potential conflict exists between Indemnitee and Indemnitor in connection with the defense of the Lender Claim; and (iv) settlement of an adverse judgment with respect to, or Indemnitor’s conduct of the defense of, the Lender Claim is not, in the good faith judgment of Indemnitee, likely to be adverse to Indemnitee’s reputation or continuing business interests.  Indemnitee may retain separate co-counsel at its sole cost and expense and participate in the defense of the Lender Claim. 

		
	(c) 
	Limitations on Indemnitor.  Indemnitor will not consent to the entry of any judgment or enter into any compromise or settlement with respect to the Lender Claim without the prior written consent of Indemnitee unless such judgment, compromise or settlement (i) provides for the payment by Indemnitor of money 

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as sole relief for the Lender Claimant and (ii) involves no finding or admission of any violation of law.

		
	(d) 
	Indemnitee’s Control.  If Indemnitor does not deliver to Indemnitee the notice contemplated by Section 2.3(b) within fifteen (15) days after Indemnitee has given notice of the Lender Claim pursuant to Section 2.3(a), or otherwise at any time fails to conduct the defense of the Lender Claim actively and diligently, Indemnitee may defend the Lender Claim in a good faith and reasonable manner, and may consent to the entry of any judgment or enter into any compromise or settlement with respect to the Lender Claim in any manner it may deem appropriate (and Indemnitee need not consult with, or obtain any consent from, Indemnitor in connection therewith).

		
	2.4
	Procedure for Notification.  Subject to Section 2.3, to obtain indemnification under this Agreement, Indemnitee shall submit to Indemnitor a written request, including therein or therewith such documentation and information as is reasonably available to Indemnitee and is reasonably necessary to determine whether and to what extent Indemnitee is entitled to indemnification under this Agreement.  The delay or omission to notify Indemnitor will not relieve Indemnitor from any liability which it may have to Indemnitee otherwise than under this Agreement.

		
	2.5
	Presumption.  It shall be presumed that Indemnitee is entitled to indemnification under this Agreement if Indemnitee has submitted a request for indemnification in accordance with Section 2.3(a), and Indemnitor shall, to the fullest extent not prohibited by law, have the burden of proof to overcome that presumption in connection with the making by any person, persons or entity of any determination contrary to that presumption.

		
	2.6
	Payment and Set-Off.  Indemnitor shall make any indemnification payment required under this Agreement promptly following request therefor (or, in the event that Indemnitor elects to participate in or assume the defense of a Lender Claim in accordance with this Section 2, promptly after any settlement or entry of any final judgment with respect to such Lender Claim), subject to Indemnitor’s right to rebut the presumption set forth in Section 2.5.  Indemnitee may set off against any amounts that it must pay to Indemnitor under any agreement or instrument any amounts that Indemnitor must pay to Indemnitee under this Agreement.

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Section 3    Indemnitor Covenants.

		
	3.1
	Maintenance of Minimum Net Worth.  Indemnitor covenants and agrees with Indemnitee that it shall maintain at all times a net worth (determined without regard to Indemnitor’s limited partner interest in Borrower) of no less than the maximum amount of any Lender Claim for which Indemnitee could seek indemnification pursuant to Section 2.1 hereof should an event described in Section 1.1 hereof occur; provided that the amount of such potential Lender Claim shall be determined without regard to any assets of the Borrower that could be used to satisfy such potential Lender Claim.

		
	3.2
	Books and Records; Audits.  Indemnitor shall keep, and will cause each of its Subsidiaries (if any) to keep, complete and accurate books and records of its transactions in accordance with good accounting practices on the basis of GAAP.  Indemnitee may, upon thirty (30) days’ written notice to Indemnitor) (but in no event more than once each fiscal year), request that an audit of Indemnitor’s books and records be performed by be performed (at Indemnitee’s sole expense), in order to provide Indemnitee with such assurance as it deems reasonable and necessary with respect to Indemnitor’s financial condition.

		
	Section 4
	Waiver of Right to Subrogation.  In the event of any payment under this Agreement, Indemnitor expressly waives any right to subrogation with respect to any of the rights of recovery of Indemnitee or any Lender Claimant. Indemnitor also expressly waives any right to indemnification it may have under the Partnership Agreement with respect to any payment under this Agreement.

		
	Section 5
	Survival.  The provisions of this Agreement shall remain in full force and effect notwithstanding termination of the Restated Credit Agreement, any of the Loan Documents, or any agreement related thereto or related to the Transactions, so long as any Lender Claim remains outstanding.

		
	Section 6
	Severability.  If any term or provision of this Agreement shall be held to be illegal, invalid or unenforceable in any respect, then such term or provision shall be fully severable from this Agreement, this Agreement shall be construed and enforced as if such illegal, invalid or unenforceable term or provision had never been a part of this Agreement, and the remaining terms and provisions of this Agreement shall remain in full force and effect and shall not be affected by such illegal, invalid or unenforceable term or provision or by its severance from this Agreement.

		
	Section 7
	Entire Agreement.  This Agreement constitutes the entire agreement between the parties hereto pertaining to the subject matter hereof, and any and all other written or oral agreements relating to the subject matter hereof existing between the parties hereto are expressly cancelled.  For the avoidance of doubt, nothing in this Section 7 shall be deemed to invalidate any provision of the Partnership Agreement.

6

		
	Section 8
	Successors and Assigns.  Indemnitor agrees that all the rights, benefits and privileges herein and hereby conferred upon Indemnitee shall vest in, and be enforceable by, Indemnitee and its successors and assigns, and shall bind Indemnitor’s successors and assigns.

		
	Section 9
	Notices.  All notices, requests, demands and other communications under this Agreement shall be in writing and shall be deemed to have been duly given if (a) delivered by hand and receipted for by the party to whom said notice or other communication shall have been directed, (b) mailed by certified or registered mail with postage prepaid, on the third business day after the date on which it is so mailed, (c) mailed by reputable overnight courier and receipted for by the party to whom said notice or other communication shall have been directed or (d) sent by facsimile transmission, with receipt of oral confirmation that such transmission has been received:

		
	a.
	If to Indemnitee to:

Western Gas Holdings, LLC
Attn:  President and Chief Executive Officer
1201 Lake Robbins Drive
The Woodlands, Texas  77380

		
	b.
	If to Indemnitor to:

Kerr-McGee Worldwide Corporation
Attn:  President
1201 Lake Robbins Drive
The Woodlands, Texas  77380

or to any other address as may have been furnished by Indemnitee or Indemnitor to the other party.
		
	Section 10
	Counterparts.  This Agreement may be executed in counterparts, each of which shall be deemed to be an original, and all of which, taken together, shall be deemed to be one and the same Agreement

7

		
	Section 11
	Applicable Law.  This Agreement shall be governed and construed in accordance with the laws of the State of New York without regard to the conflict of laws principles thereof.  The parties hereby irrevocably consent to the personal jurisdiction of the Federal and State courts located in New York, and waive any defense based upon improper venue, inconvenient venue or lack of personal jurisdiction.

[Signature Page Follows]

8

IN WITNESS WHEREOF, the parties hereto have executed and delivered this Agreement as of the date first written above.
	
			
	 
	KERR-McGEE WORLDWIDE CORPORATION

	 
	 
	 

	 
	 
	 

	 
	By:
	/s/ Robert G. Gwin

	 
	Name:
	Robert G. Gwin

	 
	Title:
	President

	
			
	 
	WESTERN GAS HOLDINGS, LLC

	 
	 
	 

	 
	 
	 

	 
	By:
	/s/ Donald R. Sinclair

	 
	Name:
	Donald R. Sinclair

	 
	Title:
	President and Chief Executive Officer

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