Sec Form 4 Filing - SANCHEZ ANTONIO R III @ Sanchez Midstream Partners LP - 2017-11-07

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 SANCHEZ ANTONIO R III 2. Issuer Name and Ticker or Trading Symbol Sanchez Midstream Partners LP [ SNMP] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) X __ Director _____ 10% Owner _____ Officer (give title below) _____ Other (specify below) (Last) (First) (Middle) 1000 MAIN STREET, SUITE 3000 3. Date of Earliest Transaction (MM/DD/YY) 11/07/2017 (Street) HOUSTON, TX77002 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 11/07/2017 A( 1 )( 2 ) 186,942 A $ 11.14 186,942 I By SP Holdings, LLC ( 3 ) Common Units 11/07/2017 J( 1 )( 2 ) 186,942 D $ 0 0 I By SP Holdings, LLC ( 3 ) Common Units 296,108 ( 1 ) ( 2 ) D Common Units 11/08/2017 S 841 ( 4 ) D $ 13 295,267 D Common Units 11/09/2017 S 300 ( 4 ) D $ 13 294,967 D Common Units 35,320 I By Sanchez Oil & Gas Corporation ( 5 )

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

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other SANCHEZ ANTONIO R III 1000 MAIN STREET, SUITE 3000 HOUSTON, TX77002 X Signatures /s/ Alfredo Gutierrez, Attorney-in-Fact 11/09/2017 Signature of Reporting Person Date

Explanation of Responses:

( 1 )Represents an anticipated distribution to SP Holdings, LLC ("SP Holdings") of 186,942 Issuer common units pursuant to the Amended and Restated Shared Services Agreement, dated March 6, 2015, by and between Issuer and SP Holdings (the "Shared Services Agreement"), and an anticipated concurrent distribution by SP Holdings of all 186,942 Issuer common units to its sole member, SP Capital Holdings, LLC ("SP Capital"), for no consideration. ( 2 )Concurrently with such aforementioned distributions, SP Capital will distribute (i) 172,921 common units to its members on a pro rata basis and for no consideration (including the 44,960 common units distributed to Reporting Person) and (ii) the remaining 14,021 common units to one individual, cumulatively resulting in exempt distributions under Rule 16a-9 and/or Rule 16a-13 of 186,942 Issuer common units to SP Capital, 172,921 common units to the members of SP Capital (including Reporting Person) and 14,021 common units to one individual. ( 3 )These Issuer common units will be owned directly by SP Holdings. SP Holdings is owned and controlled by its sole member, SP Capital. SP Capital is managed by Reporting Person and other members of the Sanchez family. Reporting Person may be deemed to share voting and dispositive power over the securities controlled by SP Capital. Reporting Person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership by Reporting Person of the reported securities for purposes of Section 16 or any other purpose. ( 4 )The sales of common units directly owned by Reporting Person reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan established by Reporting Person and were used to satisfy Reporting Person's federal income tax obligations with respect to various distributions of common units pursuant to the Shared Services Agreement. ( 5 )These securities are owned directly by Sanchez Oil & Gas Corporation ("SOG"). SOG is managed by Reporting Person and other members of the Sanchez family. Reporting Person shares voting and dispositive power over the securities controlled by SOG. Reporting Person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and the inclusion of these securities in this report shall not be deemed an admission of beneficial ownership by Reporting Person of the reported securities for purposes of Section 16 or any other purpose.

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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