Access Midstream Partners LP - 2012-12-13

Priced an upsized underwritten public offering of 16,000,000 common units representing limited partner interests at $32.15 per unit. Net proceeds will be used to purchase additional common units, fund a portion of the purchase price of its pending acquisition of Chesapeake Midstream Operating LLC, and the remainder for general partnership purposes. Citigroup, Barclays, UBS Investment Bank, BofA Merrill Lynch, Morgan Stanley andWells Fargo Securities are joint book-running managers.