Plains All American Pipeline, L.P. and Plains GP Holdings File 2017 10-KS and Publish Annual Unitholder Letter

Plains All American Pipeline, L.P. (NYSE: PAA) and Plains GP Holdings (NYSE: PAGP) today announced that they had filed their Annual Reports on Form 10-K for the fiscal year ended December 31, 2017 with the Securities and Exchange Commission and published their annual unitholder letter on their website. A copy of the PAA 10-K may be found on PAA's website, www.plainsallamerican.com, by selecting "Investor Relations", "PAA", "Financial Information" and then "SEC Filings". A copy of the PAGP 10-K may be found on PAGP's website, www.plainsallamerican.com, by selecting "Investor Relations", "PAGP", "Financial Information" and then "SEC Filings". The annual unitholder letter can be accessed via www.plainsallamerican.com, and selecting "Investor Relations", "PAA" or "PAGP", "Financial Information", and then "Letter to Unitholders/Annual Report." PAA unitholders and PAGP shareholders may receive hard copies of the PAA or PAGP 10-Ks free of charge upon request by emailing [e-mail] or by calling [phone].

Plains All American Pipeline, L.P. is a publicly traded master limited partnership that owns and operates midstream energy infrastructure and provides logistics services for crude oil, natural gas liquids ("NGL"), and natural gas. PAA owns an extensive network of pipeline transportation, terminalling, storage and gathering assets in key crude oil and NGL producing basins and transportation corridors and at major market hubs in the United States and Canada. On average, PAA handles more than 5 million barrels per day of crude oil and NGL in its Transportation segment. PAA is headquartered in Houston, Texas. More information is available at www.plainsallamerican.com.

Plains GP Holdings is a publicly traded entity that owns an indirect, non-economic controlling general partner interest in PAA and an indirect limited partner interest in PAA, one of the largest energy infrastructure and logistics companies in North America. PAGP is headquartered in Houston, Texas.

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Plains All American Pipeline, L.P.Brett Magill, 866-809-1291Manager, Investor Relations