Sec Form 4 Filing - PEFANIS HARRY N @ PLAINS ALL AMERICAN PIPELINE LP - 2016-11-15

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 PEFANIS HARRY N 2. Issuer Name and Ticker or Trading Symbol PLAINS ALL AMERICAN PIPELINE LP [ PAA] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director _____ 10% Owner X __ Officer (give title below) _____ Other (specify below) President & COO (Last) (First) (Middle) 333 CLAY STREET, # 1600 3. Date of Earliest Transaction (MM/DD/YY) 11/15/2016 (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

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 Class B Shares/Class A Units $ 0 11/15/2016 J( 1 ) 2,587,312 11/15/2017( 2 ) ( 3 ) Common Units 2,587,312 $ 0 2,587,312 D Class B Shares/Class A Units/GP Units $ 0 11/15/2016 J( 4 ) 1,181,676 ( 4 ) ( 3 ) Common Units 1,181,676 $ 0 1,181,676 ( 4 ) I See footnote (4)

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other PEFANIS HARRY N 333 CLAY STREET, # 1600 HOUSTON, TX77002 President & COO Signatures /s/ Harry N. Pefanis 11/17/2016 Signature of Reporting Person Date

Explanation of Responses:

( 1 )The limited partnership agreement of Plains AAP, L.P. ("AAP") was amended and restated on November 15, 2016 to provide, among other things, that each limited partner of AAP holding Class A Units, including the Reporting Person, will have the right, subject to certain limitations, to redeem its Class A Units in AAP (the "Class A Units"), for common units ("Common Units") of Plains All American Pipeline, L.P. (the "Issuer") held by AAP on a one-for-one basis, by delivering such Class A Units to Plains AAP along with the associated Class B Shares (the "Class B Shares") in Plains GP Holdings, L.P. ("PAGP") and GP Units (the "GP Units") in PAA GP Holdings LLC (if applicable), to PAGP (the "Redemption Right"). ( 2 )Pursuant to the limited partnership agreement of AAP, the Reporting Person may not exercise his Redemption Right with respect to any Class A Units until November 15, 2017. ( 3 )Pursuant to the limited partnership agreement of AAP, the Redemption Right does not expire. ( 4 )PAA Management, L.P. ("PAA Management") is also a limited partner of AAP and may from time to time exercise the Redemption Right with respect to its Class A Units. The Reporting Person is a member of PAA Management LLC, the general partner of PAA Management, and a limited partner of PAA Management. Therefore he may be deemed to be a beneficial owner of the interests held by PAA Management. The Reporting Person disclaims beneficial ownership of the securities held by PAA Management, except to the extent of his pecuniary interest therein. Pursuant to the limited partnership agreement of AAP, PAA Management may not exercise its Redemption Right with respect to any Class A Units attributable to the interest of the Reporting Person until November 15, 2017.

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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