Plains All American Pipeline, L.P. Announces Agreement to Acquire Rainbow Pipe Line Company

Plains All American Pipeline, L.P. (NYSE:PAA) today announced that a subsidiary of Plains Midstream Canada ULC signed a definitive agreement to acquire all of the outstanding shares of Rainbow Pipe Line Company, Ltd. (“Rainbow”) for approximately C$540 million, subject to certain closing adjustments. At closing, PAA will also acquire approximately 1.1 million barrels of crude oil linefill, at a cost based upon crude oil prices at such time. Using current crude oil prices, the estimated value of the linefill would be approximately C$120 million. The transaction is subject to receipt of regulatory approvals and satisfaction of customary closing conditions, and is currently expected to close during the second quarter of 2008.

Rainbow’s assets consist of 480 miles of mainline crude oil pipeline extending to Edmonton, Alberta from the terminus of Enbridge’s Norman Wells Pipeline at Zama, Alberta, approximately 140 miles of gathering pipelines, approximately 570,000 barrels of tankage along the system, and 1.1 million barrels of crude oil linefill. The system currently has a throughput capacity of approximately 200,000 barrels per day, and 2007 volumes on the system averaged approximately 195,000 barrels per day. Volumes transported on the system consist of oil received from the Norman Wells Pipeline, light oil from areas adjacent to the system, and heavy oil from the Peace River oil sands deposit and the Wabasca area of the Athabasca oil sands deposit. The transaction includes long-term shipping agreements with the sellers, which encompass production in the area adjacent to the Rainbow system.

“The Rainbow Pipe Line System provides an excellent complement to our existing asset base in Canada and the Rockies,” stated Greg L. Armstrong, Chairman and CEO of Plains All American. “We expect to substantially integrate Rainbow into our existing operations and realize a fair amount of synergies within six months of closing, and expect the acquisition to be accretive to distributable cash flow within that time period. We also expect to achieve substantially all near-term synergies within eighteen months following closing, and we anticipate there will be additional synergies and capital investment opportunities for several years thereafter.”

Armstrong noted that Rainbow is strategically positioned to service the development of heavy oil reserves in the Peace River and Wabasca areas, and also to benefit from future expansions of heavy oil production in the region. “Longer-term, Rainbow also offers an attractive option with respect to condensate volumes associated with the future development of the Mackenzie Delta and Beaufort Sea gas resources, and will represent a significant asset for PAA’s Canadian activities for many years to come.” Diagrams of the Rainbow Pipe Line System may be found under the “Partnership Presentations” tab of the Investor Relations section of PAA’s website at www.paalp.com.