SC 13D/A

CUSIP NO. 726503105

SCHEDULE 13D/A

(Rule 13d-101)

INFORMATION TO BE INCLUDED IN STATEMENTS FILED PURSUANT

TO RULE 13d-1(a) AND AMENDMENTS THERETO FILED PURSUANT TO

RULE 13d-2(a)

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

Under the Securities Exchange Act of 1934*

(Amendment #9)

Plains All American Pipeline, L.P.

(Name of Issuer)

Common Units

(Title of Class of Securities)

         726503105      

(CUSIP Number)

Paul G. Allen

Vulcan Capital Private Equity Inc.

Vulcan Capital Private Equity Management I LLC

Vulcan Capital Private Equity I LLC

Vulcan Capital Private Equity II LLC

505 Fifth Avenue S, Suite 900

Seattle, Washington 98104

(206) 342-2000

Vulcan Energy Corporation

333 Clay Street, Suite 1600,

Houston, Texas 77002

December 23, 2010

(Date of Event which Requires Filing

of this Statement)

If the filing person has previously filed a statement on Schedule 13G to report the acquisition that is the subject of this Schedule 13D, and is filing this schedule because of Rule 13d-1(e), 13d-1(f) or 13d-1(g), check the following box [  ].

Note.  Schedules filed in paper format shall include a signed original and five copies of the schedule, including all exhibits.  See Rule 13d-7 for other parties to whom copies are to be sent.

*The remainder of this cover page shall be filled out for a reporting person's initial filing on this form with respect to the subject class of securities, and for any subsequent amendment containing information which would alter disclosures provided in a prior cover page.

CUSIP NO. 726503105

The information required on the remainder of this cover page shall not be deemed to be "filed" for the purpose of Section 18 of the Securities Exchange Act of 1934 or otherwise subject to the liabilities of that section of the Act but shall be subject to all other provisions of the Act (however, see the Notes).

Continued on following page(s)

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CUSIP NO. 726503105

1	NAME OF REPORTING PERSON S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON Paul G. Allen
2	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*			(a) ¨  (b) x
3	SEC USE ONLY
4	SOURCE OF FUNDS* N/A
5	CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS 2(d) OR 2(e)			¨
6	CITIZENSHIP OR PLACE OF ORGANIZATION United States
NUMBER OF SHARES		7	SOLE VOTING POWER: 16,293,379 Common Units
BENEFICIALLY OWNED BY EACH REPORTING		8	SHARED VOTING POWER:  0
PERSON WITH		9	SOLE DISPOSITIVE POWER:   16,293,379 Common Units
		10	SHARED DISPOSITIVE POWER: 0
11	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 16,293,379 Common Units
12	CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES*			¨
13	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) 11.9% of Common Units
14	TYPE OF REPORTING PERSON* IN

*SEE INSTRUCTIONS BEFORE FILLING OUT!

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CUSIP NO. 726503105

1	NAME OF REPORTING PERSON S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON Vulcan Capital Private Equity Inc.
2	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*			(a) ¨  (b) x
3	SEC USE ONLY
4	SOURCE OF FUNDS* N/A
5	CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS 2(d) OR 2(e)			¨
6	CITIZENSHIP OR PLACE OF ORGANIZATION Delaware
NUMBER OF SHARES		7	SOLE VOTING POWER: 0
BENEFICIALLY OWNED BY EACH REPORTING		8	SHARED VOTING POWER: 3,903,259 Common Units
PERSON WITH		9	SOLE DISPOSITIVE POWER:  0
		10	SHARED DISPOSITIVE POWER: 3,903,259 Common Units
11	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 3,903,259 Common Units
12	CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES*			¨
13	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) 2.9%
14	TYPE OF REPORTING PERSON* CO

*SEE INSTRUCTIONS BEFORE FILLING OUT!

4

CUSIP NO. 726503105

1	NAME OF REPORTING PERSON S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON Vulcan Capital Private Equity Management I LLC
2	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*			(a) ¨  (b) x
3	SEC USE ONLY
4	SOURCE OF FUNDS* N/A
5	CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS 2(d) OR 2(e)			¨
6	CITIZENSHIP OR PLACE OF ORGANIZATION Delaware
NUMBER OF SHARES		7	SOLE VOTING POWER: 0
BENEFICIALLY OWNED BY EACH REPORTING		8	SHARED VOTING POWER: 3,706,044 Common Units
PERSON WITH		9	SOLE DISPOSITIVE POWER:  0
		10	SHARED DISPOSITIVE POWER: 3,706,044 Common Units
11	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 3,706,044 Common Units
12	CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES*			¨
13	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) 2.7%
14	TYPE OF REPORTING PERSON* CO

*SEE INSTRUCTIONS BEFORE FILLING OUT

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CUSIP NO. 726503105

1	NAME OF REPORTING PERSON S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON Vulcan Capital Private Equity I LLC
2	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*			(a) ¨  (b) x
3	SEC USE ONLY
4	SOURCE OF FUNDS* N/A
5	CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS 2(d) OR 2(e)			¨
6	CITIZENSHIP OR PLACE OF ORGANIZATION Delaware
NUMBER OF SHARES		7	SOLE VOTING POWER: 0
BENEFICIALLY OWNED BY EACH REPORTING		8	SHARED VOTING POWER: 3,706,044 Common Units
PERSON WITH		9	SOLE DISPOSITIVE POWER:  0
		10	SHARED DISPOSITIVE POWER: 3,706,044 Common Units
11	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 3,706,044 Common Units
12	CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES*			¨
13	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) 2.7%
14	TYPE OF REPORTING PERSON* CO

*SEE INSTRUCTIONS BEFORE FILLING OUT

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CUSIP NO. 726503105

1	NAME OF REPORTING PERSON S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON Vulcan Capital Private Equity II LLC
2	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*			(a) ¨  (b) x
3	SEC USE ONLY
4	SOURCE OF FUNDS* N/A
5	CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS 2(d) OR 2(e)			¨
6	CITIZENSHIP OR PLACE OF ORGANIZATION Delaware
NUMBER OF SHARES		7	SOLE VOTING POWER: 0
BENEFICIALLY OWNED BY EACH REPORTING		8	SHARED VOTING POWER: 197,215 Common Units
PERSON WITH		9	SOLE DISPOSITIVE POWER:  0
		10	SHARED DISPOSITIVE POWER: 197,215 Common Units
11	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 197,215 Common Units
12	CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES*			¨
13	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) 0.2%
14	TYPE OF REPORTING PERSON* CO

*SEE INSTRUCTIONS BEFORE FILLING OUT

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CUSIP NO. 726503105

1	NAME OF REPORTING PERSON S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON Vulcan Energy Corporation
2	CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*			(a) ¨  (b) x
3	SEC USE ONLY
4	SOURCE OF FUNDS* N/A
5	CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS 2(d) OR 2(e)			¨
6	CITIZENSHIP OR PLACE OF ORGANIZATION Delaware
NUMBER OF SHARES		7	SOLE VOTING POWER:  0
BENEFICIALLY OWNED BY EACH REPORTING		8	SHARED VOTING POWER: 12,390,120 Common Units
PERSON WITH		9	SOLE DISPOSITIVE POWER:  0
		10	SHARED DISPOSITIVE POWER: 12,390,120 Common Units
11	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 12,390,120 Common Units
12	CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES*			¨
13	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) 9.1% of Common Units
14	TYPE OF REPORTING PERSON* CO

*SEE INSTRUCTIONS BEFORE FILLING OUT!

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CUSIP NO. 726503105

Introductory Note

This ninth amendment to the Schedule 13D (this “Amendment”) amends the Schedule 13D filed with the Securities and Exchange Commission (the “SEC”) on December 3, 1993, as amended on July 3, 2001, July 23, 2004, October 13, 2004, December 20, 2004, August 12, 2005, September 3, 2008, September 10, 2009 and January 6, 2011.  This ninth amendment is filed by Paul G. Allen, Vulcan Capital Private Equity Inc., a Delaware corporation (“Vulcan Capital Inc.”), Vulcan Capital Private Equity Management I LLC, a Delaware limited liability company ("Vulcan Capital Management"), Vulcan Capital Private Equity I LLC, a Delaware limited liability company (“Vulcan Capital LLC”), Vulcan Capital Private Equity II LLC, a Delaware limited liability company (“Vulcan Capital II LLC”) and Vulcan Energy Corporation, a Delaware corporation (“Vulcan Energy” and collectively, the “Reporting Persons”),which is successor by merger to Plains Holdings II Inc., a Delaware corporation which was successor by merger to Plains Holdings Inc., a Delaware corporation which was successor by merger to Plain s Resources Inc., a Delaware corporation, with respect to the Common Units of Plains All American Pipeline, L.P. (the “Issuer”), the principal executive offices of which are located at 333 Clay St., Suite 1600, Houston TX, 77002.  Except as otherwise specified in this Amendment, all previous Items are unchanged.  Capitalized terms not otherwise defined herein shall have the meaning ascribed thereto in the Schedule 13D.

The Reporting Persons have entered into a Joint Filing Agreement, dated as of January 6, 2011, a copy of which is attached as Exhibit 99.1 to the eighth amendment to this Schedule 13D filed by the Reporting Persons on January 6, 2011 and incorporated herein by reference. Neither the fact of this filing nor anything contained herein shall be deemed an admission by the Reporting Persons that they constitute a "group" as such term is used in Section 13(d)(1)(k) of the rules and regulations under the Exchange Act.

The purpose of this ninth amendment is solely to update the descriptions of the contracts, arrangements, understandings and relationships (legal or otherwise) involving the Reporting Persons, as further described in Item 6 below.

Item 6. Contracts, Arrangements, Understandings or Relationships with respect to Securities of the Company

Item 6 is hereby amended by adding the following:

Transaction Agreement

Pursuant to that certain Transaction Agreement, dated as of December 7, 2010 (the “Transaction Agreement”), by and among Vulcan Energy, the Existing Owners, the Purchasers (each as defined in the Transaction Agreement) and the others named therein, Vulcan Energy agreed, among other things, that, prior to the earlier of (i) December 23, 2015 and (ii) the date, if any, on which Greg L. Armstrong ceases to be the Chairman of the Board and Chief Executive Officer of Plains All American GP LLC, neither it nor its affiliates would vote any Common Units of the Issuer in favor of any proposal to remove the general partner of the Issuer.  The summary description contained in this Item 6 of the Transaction A greement is qualified in its entirety by reference to the full text of such document, which is attached hereto as Exhibit 99.1 and incorporated by reference herein.

Item 7. Material to be Filed as Exhibits

99.1 Transaction Agreement, dated December 7, 2010, by and among Vulcan Energy, the Existing Owners, the Purchasers (each as defined in the Transaction Agreement) and the others named therein.

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SIGNATURES

After reasonable inquiry and to the best of his knowledge and belief, the undersigned certifies that the information set forth in this Statement is true, complete and correct.

Date:  January 19, 2011

/s/ William L. McGrath

By:  William L. McGrath

As Attorney-in-fact for Paul G. Allen

SIGNATURES

After reasonable inquiry and to the best of his knowledge and belief, the undersigned certifies that the information set forth in this Statement is true, complete and correct.

Date: January 19, 2011

VULCAN CAPITAL PRIVATE EQUITY INC.
By:	/s/ William L. McGrath
	Name:  William L. McGrath
	Title:     Vice President and Secretary

SIGNATURES

After reasonable inquiry and to the best of his knowledge and belief, the undersigned certifies that the information set forth in this Statement is true, complete and correct.

Date:  January 19, 2011

VULCAN CAPITAL PRIVATE EQUITY MANAGEMENT I LLC
By: Vulcan Capital Private Equity Inc., its managing member
By:	/s/ William L. McGrath
	Name:  William L. McGrath
	Title:     Vice President and Secretary

SIGNATURES

After reasonable inquiry and to the best of his knowledge and belief, the undersigned certifies that the information set forth in this Statement is true, complete and correct.

Date:  January 19, 2011

VULCAN CAPITAL PRIVATE EQUITY I LLC
By: Vulcan Capital Private Equity Management I LLC, its manager
By: Vulcan Capital Private Equity Inc., its managing member
By:	/s/ William L. McGrath
	Name:   William L. McGrath
	Title:      Vice President and Secretary

SIGNATURES

After reasonable inquiry and to the best of his knowledge and belief, the undersigned certifies that the information set forth in this Statement is true, complete and correct.

Date:  January 19, 2011

VULCAN CAPITAL PRIVATE EQUITY II LLC
By: Vulcan Capital Private Equity Inc., its sole member
By:	/s/ William L. McGrath
	Name:  William L. McGrath
	Title:     Vice President and Secretary

SIGNATURES

After reasonable inquiry and to the best of his knowledge and belief, the undersigned certifies that the information set forth in this Statement is true, complete and correct.

Date:  January 19, 2011

VULCAN ENERGY CORPORATION
By:	/s/ T. Geoff McKay
	Name:   T. Geoff McKay
	Title:     Chairman and Vice President

Exhibit Index

Name of Exhibit
99.1	Transaction Agreement, dated December 7, 2010, by and among Vulcan Energy, the Existing Owners, the Purchasers (each as defined in the Transaction Agreement) and the others named therein.

EX-99.1

Exhibit 99.1

TRANSACTION AGREEMENT

This TRANSACTION AGREEMENT (this “Agreement”) is entered into effective as of December 7, 2010, by and among Vulcan Energy GP Holdings Inc., a Delaware corporation (“Vulcan”); Oxy Holding Company (Pipeline), Inc., a Delaware corporation (“OHC”); KAFU Holdings, L.P., a Delaware limited partnership (“KAFU”); PAA Management, L.P., a Delaware limited partnership (“PAA Management”); Strome Group, L.P., a Delaware limited partnership (“Strome Group”); Strome MLP Fund, L.P., a Delaware limited partnership (“Strome MLP”); Lynx Holdings I, LLC, a Delaware limited liability company (“Lynx”, collectively with Vulcan, OHC, KAFU, PAA Management, Strome Group and Strome MLP, the “Existing Owners”); Plains AAP, L.P., a Delaware limited partnership (“Plains AAP”); Plains All American GP LLC, a Delaware limited liability company (“GP LLC”); Vulcan Energy Corporation, a Delaware corporation and the parent of Vulcan (“VEC”); EMG Investment, LLC, a Delaware limited liability company (“EMG”); KAFU Holdings II, L.P., a Delaware limited partnership (“KAFU II”), KA First Reserve XII, LLC, a Delaware limited liability company (“KFR”); Kayne Anderson MLP Investment Company, a Maryland corporation (“KYN”); Kayne Anderson Energy Development Company, a Maryland corporation (“KED”); Kayne Anderson Midstream/Energy Fund, Inc., a Maryland corporation (“KMF”); Strome PAA, L.P., a Delaware limited partnership (“Strome PAA”); and Windy, L.L.C., a Wyoming limited liability company (“Windy”) (EMG, KAFU II, KFR, KYN, KED, KMF, OHC, Strome PAA and Windy, collectively, “Purchasers”).

WHEREAS, each of the Existing Owners is a limited partner of Plains ААР and a member of GP LLC.

WHEREAS, pursuant to the Purchase Agreement by and among Vulcan, VEC and Purchasers, dated as of the date hereof (the “Purchase Agreement”), Vulcan has agreed to sell to Purchasers, and Purchasers have agreed, severally and not jointly, to purchase from Vulcan, an aggregate of up to 1,152,300.00 Class A Units of Plains AAP, up to an aggregate 71.05610% Unit Percentage (as defined in the Plains AAP Agreement (as defined below)) and up to an aggregate 50.1% membership interest in GP LLC (collectively, the “Subject Interests”).

WHEREAS, in connection with the transactions contemplated by the Purchase Agreement (the “Transactions”), the parties hereto desire to provide for certain approvals, consents and waivers and to set forth certain agreements, all as further described below.

NOW THEREFORE, in consideration of the mutual covenants in this Agreement and the Purchase Agreements and other good and valuable consideration, the parties hereby agree as follows:

1.           Closing.  Subject to the satisfaction (or waiver) of the conditions set forth in the Purchase Agreement, the consummation of the transactions contemplated by this Agreement and the First Closing (as defined in the Purchase Agreement) (the “Closing”) shall take place at the offices of Skadden, Arps, Slate, Meagher & Flom LLP, 1000 Louisiana Street, Suite 6800,

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Houston, Texas on December 23, 2010 or such other date and place as the parties to the Purchase Agreement shall agree.

2.           Consent and Waiver of Transactions.

(a)           Pursuant to the Fifth Amended and Restated Limited Partnership Agreement of Plains AAP, dated as of August 7, 2008 (as amended to date and as may be amended pursuant to the terms of this Agreement, the “AAP Agreement”), and the Fourth Amended and Restated Limited Liability Company Agreement of GP LLC, dated as of August 7, 2008, as amended on November 2, 2009 (as amended to date and as may be amended pursuant to the terms of this Agreement, the “GP LLC Agreement”), each of the Existing Owners hereby (i) consents to the Transactions; (ii) deems the transfers of Class A Units (as defined in the AAP Agreement) of Plains AAP, Unit Percentages (as defined in the AAP Agreement) and Membership Interests (as defined in the GP LLC Agreement) in GP LLC, when consummated in accordance with the Purchase Agreement, to have satisfied all requirements for the effectiveness and permissibility of such transfers under the AAP Agreement and the GP LLC Agreement; and (iii) permanently, irrevocably and unconditionally waives any right or power it might have to prevent, alter, encumber, rescind or nullify the Transactions, including a waiver of any right of first refusal it may hold pursuant to Section 7.8 of the AAP Agreement and/or Section 9.8 of the GP LLC Agreement with respect to the Transactions.  The consents, agreements and waivers provided under this Section 2 shall remain valid and shall apply to the Transactions notwithstanding (A) any reduction in the amount of Class A Units, Unit Percentages and Membership Interests purchased pursuant to the Purchase Agreement (pro vided that such reduction is proportional with respect to the Class A Units, Unit Percentages and Membership Interests) and (B) any reallocation of the Subject Interests among Purchasers at Closing, unless such reallocation would result in, immediately following the consummation of the Transactions, either (I) any Purchaser and its affiliates collectively holding more than 40% of the Membership Interests of GP LLC or 40% of the Class A Units of Plains AAP or (II) any Member (as defined in the GP LLC Agreement) (other than KAFU, EMG or OHC) having the right to designate a Director (as defined in the GP LLC Agreement) under the GP LLC Agreement.

(b)           As required under the definition of “Stockholders’ Agreement” in the Administrative Services Agreement (as defined in the Purchase Agreement), each of Plains AAP and GP LLC acknowledges that it has received a copy of the Amended and Restated Stockholders’ Agreement among VEC, Paul G. Allen, James C. Flores and John T. Raymond, to be effective as of the Second Closing Date (as defined in the Purchase Agreement), and that it waives proper notice under paragraph 22 of the Administrative Services Agreement.

3.           Other Approvals.To the extent the Transactions, any action reasonably necessary to facilitate the Transactions, or any other action contemplated hereby is inconsistent or conflicts with the AAP Agreement or the GP LLC Agreement, such agreements are deemed amended hereby, effective as of the Closing, but only to the extent necessary to resolve the immediate inconsistency or conflict.  To the extent deemed necessary or advisable, based on advice of counsel and approval by the board of directors of GP LLC (the “Board”), the officers of GP LLC are authorized to document an y such amendment after the Closing, and each of the Existing Owners and each Purchaser hereby grants to such officers a limited power of attorney to execute any such amendment on behalf of such parties.  In addition, each of the Existing Owners

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and each Purchaser hereby grants to the officers of GP LLC a limited power of attorney to execute, following the Closing of the Transactions, an amendment and restatement of the AAP Agreement and the GP LLC Agreement on behalf of such parties to reflect the amendments to the AAP Agreement and the GP LLC Agreement set forth in this Agreement.

4.           Closing Deliverables.  At the Closing, each Purchaser shall deliver to Plains AAP and GP LLC the Adoption and Acknowledgment Agreements, in the forms attached as Exhibit A-1 and Exhibit А-2 hereto, respectively, duly executed by such Purchaser.

5.           Amendments to Agreements.  The parties agree that, effective as of the Closing:

(a)           The GP LLC Agreement shall be amended and restated as set forth in Exhibit B attached hereto.

(b)           The AAP Agreement shall be amended and restated as set forth in Exhibit C attached hereto.

6.           Board of Directors of GP LLC.

(a)           Effective as of the Closing, (i) Geoff L. McKay shall be removed from the Board; (ii) John T. Raymond (as the Director designated by EMG) shall be elected to the Board; and (iii)(A) if OHC elects to designate a Director as of the Closing, one of the at-large Directors shall be removed from the Board and Vicky Sutil (as the Director designated by OHC) shall be elected to the Board or (B) if OHC does not elect to designate a Director as of the Closing, both of the at-large Directors shall remain on the Board until such time as OHC elects to designate a Director, in accordance with terms of the GP LLC Agreement.  Immediately following the Closing, the Board shall be comprised of the following eight Directors:  Greg L. Armstrong (as the Chief E xecutive Officer of GP LLC); John T. Raymond (as the Director designated by EMG); Vicky Sutil (as the Director designated by OHC) or one of the at-large Directors (until a Director is designated by OHC); the other at-large Director; Robert V. Sinnott (as the Director designated by KAFU); and the current members of the Audit Committee of the Board.

(b)           The Directors, other than the Chairman of the Board and the Directors designated by Members, were elected by a Majority in Interest (as defined in the GP LLC Agreement) in August 2010, which election is hereby affirmed in all respects.  The terms of service in connection with such elections (except with respect to an at-large Director replaced by the OHC designee) shall be until the annual meeting of Members (as defined in the GP LLC Agreement) for 2012.  The holding of a 2011 annual meeting of Members, as well as of any general meeting for the election of Directors (as opposed to designation thereof or affirmation of designation) convened between the date hereof and the Board meeting in August 2012, is hereby waived.

7.           Termination of Agreements with Vulcan.  Effective as of the Closing, (a) each of the (i) letter agreement, dated as of August 12, 2005 (the “Vulcan Excess Voting Agreement”), between Vulcan and GP LLC, and (ii) letter agreement, dated as of August 12, 2005 (the “Lynx Excess Voting Agreement”), between GP LLC and Lynx shall be terminated and (b) each party to the Vulcan Excess Voting Agreement and the Lynx Excess Voting

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Agreement shall be deemed to have waived any rights to receive prior notice with respect to such termination.

8.           No Removal of General Partner.  Prior to the earlier of (i) the fifth anniversary of the Closing and (ii) the date, if any, on which Greg L. Armstrong shall cease for any reason to be the Chairman of the Board and Chief Executive Officer of GP LLC, neither VEC nor its affiliates shall vote any Limited Partner Interests (as defined in the Third Amended and Restated Agreement of Limited Partnership of Plains All American Pipeline, L.P., dated as of June 27, 2001, as amended to date) in favor of any proposal to remove GP as the general partner of the MLP.

9.           Notices.  All notices or communications hereunder shall be in writing (including facsimile or similar writing) addressed as follows:

(a)	To GP LLC:
	Plains All American GP LLC
	333 Clay Street, Suite 1600
	Houston, Texas 77002
	Facsimile: 713.646.4313
	Attention: Tim Moore
(b)	To Plains ААР:
	Plains AAP, L.P.
	333 Clay Street, Suite 1600
	Houston, Texas 77002
	Facsimile: 713.646.4313
	Attention: Tim Moore
(c)	To VEC:
	c/o Vulcan Energy Corporation
	505 Fifth Ave S Suite 900
	Seattle, WA 98104
	Fax:  (206) 342-3000
	Attention:  Geoff McKay
	with a copy (which shall not constitute notice) to:
	Skadden, Arps, Slate, Meagher & Flom LLP
	1000 Louisiana, Suite 6800
	Houston, TX  77002
	Facsimile:  713-655-5200
	Attention:  Frank Bayouth

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(d)	To EMG:
	EMG Investment, LLC
	1401 McKinney Street, Suite 1025
	Houston, Texas  77010
	Facsimile:  713.579.5010
	Attention:  John T. Raymond
(e)	To KFR:
	First Reserve XII Advisors, L.L.C.
	600 Travis, Suite 6000
	Houston, Texas  77002
	Facsimile:   713.224.0771
	Attention:   General Counsel
	with a copy (which shall not constitute notice) to:
	Kayne Anderson Capital Advisors, L.P.
	717 Texas Avenue, Suite 3100
	Houston, Texas  77002
	Facsimile:  713.655.7359
	Attention:  James C. Baker
(f)	To KAFU II, KYN, KED or KMF:
	Kayne Anderson Capital Advisors, L.P.
	717 Texas Avenue, Suite 3100
	Houston, Texas  77002
	Facsimile:  713.655.7359
	Attention:  James C. Baker
(g)	To OHC:
	Oxy Holding Company (Pipeline), Inc.
	10889 Wilshire Boulevard
	Los Angeles, California 90024
	Facsimile: 310.443.6435
	Attention:  Todd Stevens
	with a copy (which shall not constitute notice) to:
	Occidental Petroleum Corporation
	10889 Wilshire Boulevard
	Los Angeles, California 90024
	Facsimile:  310.443.6333
	Attention:  Ken Royer

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If any notice or communication hereunder is given to any of EMG, KFR, KAFU II, KYN, KED, KMF or OHC, a copy (which shall not constitute notice) shall also be given to:

	Baker Botts, L.L.P.
	98 San Jacinto Blvd., Suite 1500
	Austin, Texas  78701-4039
	Facsimile:  512.322.8377
	Attention:  Laura Lanza Tyson
(h)	To Strome PAA:
	Strome PAA, LP
	100 Wilshire Blvd, 17th Floor
	Santa Monica, California  90401
	Facsimile:  310.752.1482
	Attention:  Mark Strome
(i)	To Windy:
	Windy, L.L.C.
	c/o Tetrad Corporation
	11422 Miracle Hills Drive
	Omaha, Nebraska  68154
	Facsimile:  402.997.7502
	Attention:  W. David Scott

(j)           To the Existing Owners, to the address listed below such Existing Owner’s name on the applicable signature page hereto.

Any such notice or communication shall be deemed given (i) when made, if made by hand delivery, and upon confirmation of receipt, if made by facsimile, (ii) one Business Day after being deposited with a next day courier, postage prepaid, or (iii) three Business Days after being sent certified or registered mail, return receipt requested, postage prepaid, in each case addressed as above (or to such other address as such party may designate in writing from time to time). “Business Day” means any day that is not a Saturday, Sunday or other day on which banks are required or authorized by law to be closed in the City of Houston, Texas.

10.           Entire Agreement.  This Agreement, the Purchase Agreement (in the case of Vulcan, VEC and Purchasers) and any documents and agreements delivered in connection with any of the foregoing represent the entire agreement of the parties with respect to the subject matter hereof and shall supersede any and all previous contracts, arrangements or understandings between the parties hereto with respect to the subject matter hereof (other than the GP LLC Agreement and the AAP Agreement).  Effective as of the Closing, the parties shall be deemed to have approved, adopted and ratified the GP LLC Agreement and the AAP Agreement as amended hereby.  Nothing contained herein is intended to al ter or supersede the rights and

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obligations of the parties to the Separation Agreements (as defined in the Purchase Agreement) thereunder.

11.           Headings.  The descriptive headings contained in this Agreement are included for convenience of reference only and shall not affect in any way the meaning or interpretation of this Agreement.

12.           Severability.  If any provision of this Agreement shall be declared to be invalid or unenforceable, in whole or in part, such invalidity or unenforceability shall not affect the remaining provisions hereof which shall remain in full force and effect.

13.           Assignment.  Neither this Agreement nor any of the rights, interests or obligations hereunder shall be assigned without the prior written consent of the parties hereto, which consent may be granted or withheld in the sole discretion of the parties.  Subject to the preceding sentence, this Agreement shall be binding upon and shall inure to the benefit of the parties hereto and their respective successors and assigns.  Nothing in this Agreement, express or implied, is intended to confer on any person other than the parties hereto or their respective successors and assigns any rights, remedies, obligations or liabilities under or by reason of this Agreement.

14.           Amendment.  This Agreement may not be amended or modified except (a) by an instrument in writing signed by each of, or on behalf of each of, the parties or (b) by a waiver in accordance with Section 15.  This Agreement may be amended or supplemented in writing by the parties hereto with respect to any of the terms contained in this Agreement.

15.           Waiver.  No failure or delay by any party hereto in exercising any right hereunder shall operate as a waiver thereof nor shall any single or partial exercise thereof preclude any other or further exercise thereof or the exercise of any other right hereunder.  Any agreement on the part of a party hereto to any such extension or waiver shall be valid only if set forth in an instrument in writing signed on behalf of such party.

16.           Governing Law; Forum.  This Agreement shall be governed by, and construed in accordance with, the laws of the State of Texas applicable to contracts executed in and to be performed in that state and without regard to any applicable conflicts of law.  All actions and proceedings arising out of or relating to this Agreement shall be heard and determined in any Texas state or federal court located in Houston, Texas.  In connection with the foregoing, each of the parties to this Agreement irrevocably (a) consents to submit itself to the personal jurisdiction of the state and federal courts of competent jurisdi ction located in Houston, Texas, (b) agrees that it will not attempt to deny or defeat such personal jurisdiction by motion or other request for leave from any such court, and (с) hereby consents to service of process pursuant to the notice provisions set forth in Section 9.

17.           Waiver of Jury Trial.  Each of the parties hereto irrevocably and unconditionally waives all right to trial by jury in any action, proceeding or counterclaim (whether based in contract, tort or otherwise) arising out of or relating to this Agreement or the actions of the parties hereto in the negotiation, administration, performance and enforcement thereof.

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18.           Attorney’s Fees.  If any action at law or equity, including an action for declaratory relief, is brought to enforce or interpret any provision of this Agreement, the prevailing party shall be entitled to recover reasonable attorney’s fees and expenses from the other party, which fees and expenses shall be in addition to any other relief which may be awarded.

19.           Specific Performance.  The parties hereto agree that irreparable damage would occur in the event any provision of this Agreement was not performed in accordance with the terms hereof and that the parties shall be entitled to specific performance of the terms hereof, in addition to any other remedy at law or in equity.

20.           Further Assurances.  Each party agrees to do all acts and things and to execute and deliver such further written instruments as may be from time to time reasonably required to carry out the terms and provisions of this Agreement and the Purchase Agreement.

21.           Expenses.  All expenses incurred by the parties hereto shall be borne solely and entirely by the party that has incurred such expenses; provided however, that Vulcan agrees to reimburse Plains AAP or GP LLC for the reasonable out-of-pocket expenses incurred by Plains AAP or GP LLC in connection with this Agreement.

22.           Publicity.

(a)           None of the Existing Owners (unless such Existing Owner is a Purchaser) nor any of their respective Affiliates shall issue or cause the publication of any press release or other announcement with respect to this Agreement or the Purchase Agreement or the transactions contemplated hereby or by the Purchase Agreement (each а “Release”), except as may be required by law or by any listing agreement with а national securities ex change.  Purchasers and Plains AAP and their respective Affiliates (other than any Existing Owner) may issue or cause the publication of any Release but only with а prior consultation of the other, except as may be required by law or by any listing agreement with a national securities exchange, and each of Purchasers and Plains AAP will use reasonable efforts to provide copies of any such Release to the other, and will give due consideration to such comments as the other may have, prior to issuing or causing the publication of any such Release.

(b)           None of the Existing Owners, Plains AAP, GP LLC, VEC or Purchasers shall, and Plains AAP and GP LLC shall cause the MLP not to, publicly disclose the name of any Purchaser, or include the name of any Purchaser in any Release, without the prior written consent of such Purchaser, except as may be required by law or by any listing agreement with a national securities exchange.

23.           Counterparts. This Agreement may be executed and delivered (including by facsimile transmission) in one or more counterparts, and by the different parties hereto in separate counterparts, each of which when executed and delivered shall be deemed to be an original, but all of which taken together shall constitute one and the same agreement.

24.           Interpretation of Provisions.  Article and Section references are to this Agreement, unless otherwise specified.  All references to instruments, documents, contracts, and agreements are references to such instruments, documents, contracts, and agreements as the same

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may be amended, supplemented, and otherwise modified from time to time, unless otherwise specified.  The word “including” shall mean “including but not limited to.”  Whenever any determination, consent, or approval is to be made or given by a party hereto, such action shall be in such party’s sole discretion unless otherwise specified in this Agreement.  This Agreement has been reviewed and negotiated by sophisticated parties with access to legal counsel and shall not be construed against the drafter.

[The remainder of this page is intentionally left blank.]

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IN WITNESS WHEREOF, this Agreement is executed as of the date first written above.

PLAINS ALL AMERICAN GP LLC
By:	/s/ Greg L. Armstrong
	Greg L. Armstrong
	Chairman and Chief Executive Officer
PLAINS AAP, L.P.
By:	PLAINS ALL AMERICAN GP LLC, its General Partner
By:	/s/ Greg L. Armstrong
	Greg L. Armstrong
	Chairman and Chief Executive Officer

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Transaction Agreement

EXISTING OWNERS:
VULCAN ENERGY GP HOLDINGS INC.
By:	/s/ T. Geoff McKay
	Name:    T. Geoff McKay
	Title:      Vice President and Chairman
Address:
505 Fifth Ave S Suite 900
Seattle, WA 98104
Fax:  (206) 342-3000
Attention:  Geoff McKay
OXY HOLDING COMPANY (PIPELINE), INC.
By:	/s/ Todd A. Stevens
	Name:    Todd A. Stevens
	Title:      Vice President
Address:
Oxy Holding Company (Pipeline), Inc.
10889 Wilshire Boulevard
Los Angeles, California 90024
Facsimile:  310.443.6435 Attention:  Todd Stevens
with a copy (which shall not constitute notice) to:
Occidental Petroleum Corporation
10889 Wilshire Boulevard
Los Angeles, California 90024
Facsimile:  310.443.6333
Attention:  Ken Royer

KAFU HOLDINGS L.P., INC.
By:	/s/ David Shladovsky
	Name:  David Shladovsky
	Title:   General Counsel
Address:
c/o Kayne Anderson Capital Advisors, L.P.
717 Texas Avenue, Suite 3100
Houston, Texas  77002
Facsimile:  713.655.7359
Attention:  James C. Baker
PAA MANAGEMENT, L.P.
By:	/s/ Greg L. Armstrong
	Name:  Greg L. Armstrong
	Title:    President & CEO of PAA Management LLC, general partner
Address:

STROME GROUP L.P.
By:	/s/ Illegible
Name:
Title:
Address:

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Transaction Agreement

STROME MLP FUND, L.P.
By:	/s/ Illegible
Name:
Title:
Address:

LYNX HOLDINGS I, LLC
By:	/s/ John T. Raymond
	John T. Raymond, Sole Member
Address:
Lynx Holdings I, LLC
1401 McKinney Street, Suite 1025
Houston, Texas  77010
Facsimile:  713.579.5010
Attention:  John T. Raymond

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Transaction Agreement

VULCAN ENERGY CORPORATION
By:	/s/ T. Geoff McKay
Name:    T. Geoff McKay
Title:      Vice President and Chairman

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Transaction Agreement

PURCHASERS:
EMG INVESTMENT, LLC
By:    EMG Admin, LP, its manager
By:	EMG Admin GP, LLC, its general partner
By:	/s/ John T. Raymond
	John T. Raymond, Member
KAFU HOLDINGS II, L.P.
By:    KAFU Holdings, LLC, its general partner
By:	/s/ David Shladovsky
Name:    David Shladovsky
Title:      General Counsel
KA FIRST RESERVE XII, LLC
By:    KA Fund Advisors, LLC, its managing member
By:	/s/ James C. Baker
Name:    James C. Baker
Title:      Senior Managing Director
KAYNE ANDERSON MLP INVESTMENT COMPANY
By:	/s/ James C. Baker
Name:    James C. Baker
Title:      Executive Vice President

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Transaction Agreement

KAYNE ANDERSON ENERGY DEVELOPMENT COMPANY
By:	/s/ James C. Baker
Name:   James C. Baker
Title:      Executive Vice President
KAYNE ANDERSON MIDSTREAM/ENERGY FUND, INC.
By:	/s/ James C. Baker
Name:    James C. Baker
Title:      Executive Vice President
OXY HOLDING COMPANY (PIPELINE), INC.
By:	/s/ Todd A. Stevens
Name:   Todd A. Stevens
Title:      Vice President

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Transaction Agreement

STROME PAA, L.P.
By:	/s/ Illegible
Name:
Title:
WINDY, L.L.C.
By:	/s/ W. David Scott
Name:    W. David Scott
Title:       Manager

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Transaction Agreement