Plains All American Pipeline to Acquire Publicly-Held Units of PAA Natural Gas Storage

Plains All American Pipeline, L.P.

today announced that it has entered into a definitive agreement and plan of merger (the “Merger Agreement”) with PAA Natural Gas Storage, L.P. (“PNG”) that provides for a merger whereby PNG will become a wholly-owned subsidiary of PAA, through a unit-for-unit exchange (the “Merger”). Under the terms of the Merger Agreement, PNG's public unitholders will receive 0.445 common units of PAA per PNG common unit surrendered pursuant to the Merger Agreement, plus cash in lieu of any fractional common units of PAA otherwise issuable in the Merger. The transaction is expected to result in approximately 14.7 million additional common units being issued by PAA. In connection with the closing