PAA Natural Gas Storage, L.P. (NYSE: PNG) today announced that it has completed its initial public offering of 13,478,000 common units representing limited partner interests at $21.50 per common unit. The number of units issued at closing included 1,758,000 additional common units issued pursuant to the full exercise of the underwriters’ over-allotment option.

Net proceeds received by PAA Natural Gas Storage from the sale of the 13,478,000 common units were approximately $269 million. PNG expects to use these net proceeds, together with $200 million of borrowings under its new credit facility, to repay intercompany indebtedness owed to Plains All American Pipeline, L.P. (NYSE: PAA). PAA expects to use all or a portion of these proceeds to repay amounts outstanding under its credit facilities and for general partnership purposes.

The common units offered represent approximately 23.2 percent of the outstanding equity of PNG. Plains All American Pipeline, L.P. owns the remaining equity interests in PNG.

Barclays Capital, UBS Investment Bank, Citi, and Wells Fargo Securities acted as joint book-running managers for the offering. BofA Merrill Lynch, J.P. Morgan, Raymond James, Madison Williams, Morgan Keegan & Company, Inc., RBC Capital Markets, and Stifel Nicolaus acted as co-managers for the offering.

This offering of common units will be made only by means of a prospectus. A copy of the final written prospectus meeting the requirements of Section 10 of the Securities Act of 1933, may be obtained from the offices of:

Barclays Capitalc/o Broadridge Integrated Distribution Services1155 Long Island AvenueEdgewood, New York 11717Toll free: 1-888-603-5847
UBS Investment BankAttn: Prospectus Department299 Park AvenueNew York, New York 10171Toll free: 1-888-827-7275


Brooklyn Army Terminal

Attention: Prospectus Dept.

140 58th Street, 8th floor,

Brooklyn, NY, 11220

Toll-free number: (800) 831-9146

Wells Fargo Securities

Attn: Equity Syndicate Dept.

375 Park Avenue New York

New York 10152

Telephone: (800) 326-5897

A registration statement relating to these securities has been filed with, and declared effective by, the Securities and Exchange Commission. This news release shall not constitute an offer to sell or the solicitation of an offer to buy nor shall there be any sale of these securities in any state in which such offer, sale or solicitation would be unlawful prior to registration or qualification under the securities law in any such state.

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