Sec Form 4 Filing - WILLIAMSON BRUCE A @ Southcross Energy Partners, L.P. - 2018-08-22

FORM 4 Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person WILLIAMSON BRUCE A 2. Issuer Name and Ticker or Trading Symbol Southcross Energy Partners, L.P. [ SXE] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) X __ Director _____ 10% Owner X __ Officer (give title below) _____ Other (specify below) See Remarks (Last) (First) (Middle) C/O SOUTHCROSS ENERGY PARTNERS, L.P., 1717 MAIN STREET, SUITE 5200 3. Date of Earliest Transaction (MM/DD/YY) 08/22/2018 (Street) DALLAS, TX75201 4. If Amendment, Date Original Filed (MM/DD/YY) 6. Individual or Joint/Group Filing (Check Applicable Line) __ X __ Form filed by One Reporting Person _____ Form filed by More than One Reporting Person (City) (State) (Zip)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned 1.Title of Security (Instr. 3) 2. Transaction Date (MM/DD/YY) 2A. Deemed Execution Date, if any (MM/DD/YY) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4) Code V Amount (A) or (D) Price Common Units (Limited Partnership Interests) 08/22/2018 M 12,739 A 12,739 D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned ( e.g. , puts, calls, warrants, options, convertible securities) 1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (MM/DD/YY) 3A. Deemed Execution Date, if any (MM/DD/YY) 4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4, and 5) 6. Date Exercisable and Expiration Date (MM/DD/YY) 7. Title and Amount of Underlying Securities (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4) Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares Phantom Units ( 1 ) 08/22/2018 M 157,978 ( 1 )( 2 ) ( 1 )( 2 ) Common Units 157,978 ( 1 ) ( 2 ) ( 1 ) ( 2 ) 0 D

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other WILLIAMSON BRUCE A C/O SOUTHCROSS ENERGY PARTNERS, L.P. 1717 MAIN STREET, SUITE 5200 DALLAS, TX75201 X See Remarks Signatures /s/ Bruce A. Williamson 08/24/2018 Signature of Reporting Person Date

Explanation of Responses:

( 1 )The phantom units were issued to the Reporting Person pursuant to the Issuer's Non-Employee Director Compensation Arrangement and Non-Employee Director Deferred Compensation Plan for his equity compensation and retainer and meeting fees. Under such arrangement, the Reporting Person was eligible to receive equity compensation, cash compensation, and distribution equivalent rights that the Reporting Person deferred. Each phantom unit was the economic equivalent of one common unit. The Reporting Person's last date of service was August 16, 2018. ( 2 )For the 12,739 phantom units credited to the Reporting Person for equity compensation, the Reporting Person received 12,739 common units. For the 145,239 phantom units credited to the Reporting Person for cash compensation, the Reporting Person will receive cash equal to the fair market value of the phantom units on the Reporting Person's date of termination of service. The cash shall be paid to the Reporting Person within 30 days following his termination of service.

Remarks: The Reporting Person was the previous Chairman, President and Chief Executive Officer of Southcross Energy Partners GP, LLC, the general partner of the Issuer (the "General Partner"). The Issuer is managed by the directors and executive officers of the General Partner.

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.

* If the form is filed by more than one reporting person, see Instruction 4(b)(v).

** Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).

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