Sec Form 4 Filing - HORTON STANLEY C @ Boardwalk Pipeline Partners, LP - 2016-02-04

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 HORTON STANLEY C 2. Issuer Name and Ticker or Trading Symbol Boardwalk Pipeline Partners, LP [ BWP] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) X __ Director _____ 10% Owner X __ Officer (give title below) _____ Other (specify below) President & CEO (Last) (First) (Middle) 9 GREENWAY PLAZA, SUITE 2800 3. Date of Earliest Transaction (MM/DD/YY) 02/04/2016 (Street) HOUSTON, TX77046 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

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 ) 02/04/2016 A 151,771 ( 2 ) ( 2 ) Common Units 151,771 $ 0 151,771 D

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other HORTON STANLEY C 9 GREENWAY PLAZA, SUITE 2800 HOUSTON, TX77046 X President & CEO Signatures /s/ Stanley C. Horton 02/08/2016 Signature of Reporting Person Date

Explanation of Responses:

( 1 )Each phantom unit is the economic equivalent of one common unit of the Issuer. ( 2 )Except as otherwise provided in the Reporting Person's Phantom Unit Grant Agreement, 50% of the phantom units vest on December 1, 2017 (First Tranche) and the remaining 50% vest on December 1, 2018 (Second Tranche). All phantom units will be settled in cash, but the timing of the cash payment of the First Tranche will be determined by the payment election the Reporting Person is required to make by March 4, 2016. The Reporting Person may elect to have the phantom units paid in connection with the vesting of the First Tranche or deferred until the payment associated with the Second Tranche, except for amounts accelerated and withheld to satisfy applicable tax withholding obligations related to the December 1, 2017, vesting event. The Second Tranche is not subject to a deferral election and will be paid to the Reporting Person within 30 days of the vesting event.

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).

Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
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