Sec Form 4 Filing - Fasullo Peter Anthony @ Third Coast Midstream, LLC - 2019-07-23

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 Fasullo Peter Anthony 2. Issuer Name and Ticker or Trading Symbol Third Coast Midstream, LLC [ AMID] 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) C/O THIRD COAST MIDSTREAM, LLC, 2103 CITYWEST BLVD., BLDG. 4, SUITE 800 3. Date of Earliest Transaction (MM/DD/YY) 07/23/2019 (Street) HOUSTON, TX77042 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 partner interests) 07/23/2019 D 28,371 ( 1 ) D $ 0 0 ( 2 ) I ( 3 ) By Family Trust

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 Fasullo Peter Anthony C/O THIRD COAST MIDSTREAM, LLC 2103 CITYWEST BLVD., BLDG. 4, SUITE 800 HOUSTON, TX77042 X Signatures /s/ M. Dilshad Kasmani, Attorney-in-Fact for Peter A. Fasullo 07/23/2019 Signature of Reporting Person Date

Explanation of Responses:

( 1 )Represents common units representing limited partnership interests (the "Common Units") of Third Coast Midstream, LLC (f/k/a American Midstream Partners, LP), a Delaware limited liability company (the "Issuer"). ( 2 )On July 23, 2019, pursuant to that certain Agreement and Plan of Merger (the "Merger Agreement"), dated March 17, 2019, among the American Midstream GP, LLC (the "General Partner"), the Issuer, Anchor Midstream Acquisition, LLC ("Parent"), Anchor Midstream Merger Sub, LLC ("Merger Sub") and High Point Infrastructure Partners, LLC, Merger Sub merged with and into the Issuer (the "Merger"), with the Issuer surviving the Merger as a wholly owned subsidiary of the General Partner and Parent. In connection with the consummation of the Merger, each Common Unit (other than Common Units held by Parent) issued and outstanding immediately prior to the effective time of the Merger was converted into the right to receive $5.25 cash in Merger Consideration (as defined in the Merger Agreement), and the Common Units were canceled and ceased to be outstanding. As of the effective time of the Merger, the Reporting Person no longer owns any Common Units. ( 3 )Units are held in the Fasullo Family Revocable Trust

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).

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