Document:

EX-10.1

 Exhibit 10.1 

Southcross Holdings LP 
 1717 Main
Street, Suite 5200 
 Dallas, Texas 75201 

October 31, 2017 
 Southcross Energy
Partners, L.P. 
 750 Town and Country Boulevard, Suite 950 

Houston, Texas 77024 
  

	 	Re:	Agreement and Plan of Merger dated as of October 31, 2017 (the “Merger Agreement”), by and among Southcross Energy Partners, L.P., a Delaware limited partnership (“SXE”),
Southcross Energy Partners GP, LLC, a Delaware limited liability company and the general partner of SXE (“SXE GP”), American Midstream Partners, LP, a Delaware limited partnership (“AMID”), American Midstream GP,
LLC, a Delaware limited liability company and the general partner of AMID (“AMID GP” and together with AMID, the “AMID Entities”), and Cherokee Merger Sub LLC, a wholly-owned subsidiary of AMID (“Merger
Sub”) 

 Gentlemen: 

Reference is hereby made to the Merger Agreement and to that certain Contribution Agreement dated as of October 31, 2017 (the
“Contribution Agreement”), by and among Southcross Holdings LP, a Delaware limited partnership (“Holdings LP”) and the AMID Entities. Any capitalized terms what are used herein and are not otherwise defined in this
letter agreement shall have the meaning given to such terms in the Merger Agreement. The parties are entering into this letter agreement for good and valuable consideration, the receipt and sufficiency of which is hereby acknowledged. 

Holdings LP hereby agrees that if the Closing shall not have been consummated and the Merger Agreement has been terminated (i) primarily
as a result of the termination of the Contribution Agreement pursuant to (A) Section 7.1(a) thereof [Termination by Mutual Written Consent of Holdings and AMID] without the prior approval of the SXE Conflicts Committee; (B) by
the AMID Entities pursuant to Section 7.1(b)(i) thereof [Outside Date] and the failure to consummate the transactions contemplated by the Contribution Agreement by the Outside Date was solely due to any action taken or any failure to act
by, or at the direction of, Holdings LP or any of its controlling Affiliates; (C) by the AMID Entities pursuant to Section 7.1(b)(ii) thereof [Final Nonappealable Restraint] if the applicable Restraint was solely due to any action
taken or any failure to act by, or at the direction of, Holdings LP or any of its controlling Affiliates; or (D) by the AMID Entities pursuant to Section 7.1(d) thereof [Holdings LP Uncured Breach], or (ii) as a result of the
termination of the Merger Agreement (A) pursuant to Section 7.1(a) thereof [Termination by Mutual Written Consent of SXE and AMID] without the prior approval of the SXE Conflicts Committee; (B) by AMID pursuant to
Section 7.1(b)(i) thereof [Outside Date] and the failure to effect the Closing by the Outside Date was solely due to any action taken or any failure to act by, or at the direction of, Holdings LP or any of its controlling Affiliates or

 
SXE GP without the prior approval of the SXE Conflicts Committee; (C) by AMID pursuant to Section 7.1(b)(ii) thereof [Final Nonappealable Restraint] if the applicable Restraint
was solely due to any action taken or any failure to act by, or at the direction of, Holdings LP or any of its controlling Affiliates or SXE GP without the prior approval of the SXE Conflicts Committee; (D) by AMID pursuant to
Section 7.1(c)(i) [SXE Adverse Recommendation Change] to the extent such SXE Adverse Recommendation Change occurred without the prior approval of the SXE Conflicts Committee; or (E) by AMID pursuant to Section 7.1(c)(ii)
[SXE Uncured Breach] and such uncured breach or failure to perform referenced in such Section is solely the result of any action taken or any failure to act by, or at the direction of, Holdings LP or any of its controlling Affiliates or SXE
GP without the prior approval of the SXE Conflicts Committee, then Holdings LP shall promptly, following the occurrence of any such event, pay to and reimburse SXE for any and all fees or expenses of counsel, accountants, investment bankers and
consultants retained by SXE or the SXE Conflicts Committee, and any other costs and expenses reasonably incurred by SXE or its Subsidiaries (x) in connection with the negotiation, execution and delivery of this letter agreement; and (y) as
a result of the execution and delivery of the Merger Agreement, including costs and expenses incurred in order to comply with the terms of the Merger Agreement (including the payment of any SXE Termination Fee or the reimbursement of any AMID
Expenses). 
 Holdings LP has undertaken various obligations under the Contribution Agreement with respect to SXE and its Subsidiaries
(including, without limitation, Holdings LP’s indemnification obligations with respect to breaches of representations and warranties regarding SXE and its Subsidiaries and certain contingent liabilities of SXE and its Subsidiaries), as more
fully set forth therein. Each of SXE and Holdings LP hereby agree that if the Contribution Agreement is terminated in a manner that results in Holdings LP receiving the Reverse Termination Fee (as defined in the Contribution Agreement), (i) Holdings
LP shall be entitled to retain the full amount of such Reverse Termination Fee, and (ii) Holdings LP shall reimburse SXE for any and all fees or expenses of counsel, accountants, investment bankers and consultants retained by SXE or the SXE
Conflicts Committee and any other costs and expenses reasonably incurred by SXE or its Subsidiaries (x) in connection with the negotiation, execution and delivery of this letter agreement; and (y) as a result of the execution and delivery
of the Merger Agreement, including costs and expenses incurred in order to comply with the terms of the Merger Agreement. 
 This letter
agreement may only be amended in writing executed by and among each of the parties hereto. The terms hereto shall be binding upon, and inure to the benefit of, the respective successors and assigns of the parties hereto. This letter agreement
constitutes the entire agreement, and supersedes all other prior agreements and understandings, both written and oral, among the parties with respect to the subject matter of this letter agreement and shall not confer upon any person other than the
parties hereto any rights (including third-party beneficiary rights or otherwise) or remedies hereunder. 
 Section 8.3 [Extension
of Time, Waiver Etc.], Section 8.5 [Counterparts], Section 8.7 [Governing Law; Jurisdiction; Waiver of Jury Trial], Section 8.10 [Severability] and Section 8.11(a)-(b) [Interpretation] of the
Merger Agreement are incorporated as if set out in full herein, and as if references in those Sections to the “Agreement” were references to this letter agreement and as if references therein to the parties thereto were references to the
parties to this letter agreement. 

 If this letter agreement correctly reflects the parties’ agreements regarding the subject
matter hereof, please execute this letter agreement in the space provided. 
  

			
	Very truly yours,
	
	SOUTHCROSS HOLDINGS LP
		
	By:	 	SOUTHCROSS HOLDINGS GP, LLC,
		 	its general partner
		
	By:	 	/s/ Bret M. Allan
	Name:	 	Bret M. Allan
	Title:	 	Senior Vice President and Chief Financial Officer

  
  

 Agreed to and Acknowledged as of 

the date of this letter: 
 SOUTHCROSS ENERGY PARTNERS, L.P 

By: SOUTHCROSS ENERGY PARTNERS GP, LLC 
 its
general partner 
  

			
		
	By:	 	/s/ Bret M. Allan
	Name:	 	Bret M. Allan
	Title:	 	 Senior Vice President and
 Chief Financial
OfficerEX-10.2

 Exhibit 10.2 

AMENDMENT TO THE 

SOUTHCROSS ENERGY PARTNERS, L.P. 

NON-EMPLOYEE DIRECTOR DEFERRED COMPENSATION PLAN 

WHEREAS, Southcross Energy Partners GP, LLC, a Delaware limited liability company (the “Company”) has previously established
the Southcross Energy Partners, L.P. Non-Employee Director Deferred Compensation Plan effective March 7, 2013 (the “Plan”) for the benefit of
non-employee directors of the Company; and 
 WHEREAS, the Company has entered into that certain
Agreement and Plan of Merger, dated as of October 31, 2017, by and among the Company, Southcross Energy Partners, L.P., a Delaware limited partnership of which the Company is the general partner (the “Partnership”), American
Midstream Partners, LP, a Delaware limited partnership (“AMID”), American Midstream GP, LLC, a Delaware limited liability company, and Cherokee Merger Sub LLC, a Delaware limited liability company and a wholly-owned subsidiary of
AMID (“Merger Sub”) (the “Merger Agreement”) pursuant to which AMID will acquire control over the Partnership through the merger of the Partnership with and into Merger Sub; and 

WHEREAS, pursuant to Section 5.14(d) of the Merger Agreement, the Company is required to terminate the Plan and liquidate each
Participant’s Account (as such terms are defined in the Plan) in a lump sum cash payment within thirty (30) days prior to Closing (as such term is defined in the Merger Agreement); and 

WHEREAS, the Company has the authority to amend or terminate the Plan with the written consent of each affected Participant under
Section 7.2 thereof; and 
 WHEREAS, each Participant has consented to the termination of the Plan and liquidation of his or her
Account (as defined in the Plan), as evidenced by the execution of this Amendment below. 
 NOW, THEREFORE, the following amendment is
hereby made, and shall be effective on the date executed below. 
  

	  1.	A new Section 6.4 is hereby added to the Plan, effective as provided therein, to be and read as follows: 

“6.4 Termination and Liquidation in Connection with Merger. In connection with that certain Agreement and Plan of Merger, dated as
of October 31 2017, by and among the Company, the Partnership, American Midstream Partners, LP, a Delaware limited partnership (“AMID”), American Midstream GP, LLC, a Delaware limited liability company, and Cherokee Merger Sub LLC, a
Delaware limited liability company and a wholly owned subsidiary of AMID (“Merger Sub”) (the “Merger Agreement”) pursuant to which AMID will acquire control over the Partnership through the merger of the Partnership with and into
Merger Sub, and in accordance with Section 1.409A-

 
3(j)(4)(ix)(B) of the Treasury Regulations, governing termination and liquidation of certain nonqualified deferred compensation arrangements in connection with Change in Control (as defined under
Section 1.409A) events, the Plan is terminated effective as of one (1) business days prior to the Closing (as defined in the Merger Agreement) (the “Termination Effective Date”). Notwithstanding any contrary provisions herein,
each Participant’s Account in the Plan shall be liquidated and paid to the Participant or his or her Beneficiary, if applicable, in the form of a lump sum cash payment as soon as practicable following the Termination Effective Date, but no
later than the Closing Date (as defined in the Merger Agreement). For the purpose of avoiding ambiguity, any portion of a Participant’s Account attributable to Equity Compensation shall be paid in the form of cash, regardless that it would
otherwise be payable in the form of Units under Section 6.1 of this Article VI.” 
 [Remainder of page intentionally left blank.
Signature page follows.] 

 IN WITNESS WHEREOF, with the consent of each affected Participant, the Company has caused this
instrument to be executed this 31st day of October, 2017. 
  

			
	SOUTHCROSS ENERGY PARTNERS, L.P.
		
	By:	 	SOUTHCROSS ENERGY PARTNERS GP, LLC
		 	Its general partner
		 	

  

			
		
	By:	 	/s/ Bret M. Allan
	Name:	 	Bret M. Allan
	Title:	 	Senior Vice President and
		 	Chief Financial Officer

  
  

			
	PARTICIPANT
		
		 	/s/ Bruce A. Williamson

 
			
	Bruce A. Williamson

  
 Signature Page to 

Amendment to Non-Employee Director Deferred Compensation Plan

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