X0202 4 2006-07-26 0001070423 PLAINS ALL AMERICAN PIPELINE LP PAA 0001298438 Capobianco David N 505 FIFTH AVENUE S., SUITE 900 SEATTLE WA 98104 1 0 0 0 Common Units 2006-07-26 4 P 0 697674 43.00 A 14386074 I Through Corporation and by managed LLC Units purchased by Vulcan Capital Private Equity I LLC (Vulcan Capital), pursuant to Common Unit Purchase Agreement dated July 20, 2006, between Vulcan Capital, the Issuer and the other parties named therein. 1,995,954 Common Units of the Issuer are owned by Vulcan Capital. 12,390,120 Common Units of the Issuer are owned by Vulcan Energy Corporation ("Vulcan Energy"). The Reporting Person owns an equity interest in Vulcan Capital and has an indirect right to receive a performance-based fee based on the performance of the holdings of Vulcan Energy and Vulcan Capital, including the Common Units held by these entities. As a result, the Reporting Person may be deemed to have a pecuniary interest in the Common Units held by Vulcan Energy and Vulcan Capital. The Reporting Person disclaims beneficial ownership of the reported securities, except to the extent of his pecuniary interest therein, if any. /s/ David N. Capobianco 2006-07-26