X0306 4 2015-02-02 0 0001483096 WILLIAMS PARTNERS L.P. WPZ 0000107263 WILLIAMS COMPANIES INC ONE WILLIAMS CENTER TULSA OK 74172 1 0 1 0 0001423889 WILLIAMS GAS PIPELINE CO LLC ONE WILLIAMS CENTER TULSA OK 74172 1 0 1 0 Common Units 2015-02-02 4 A 0 245252440 A 339664088 D On February 2, 2015, Pursuant to an Agreement and Plan of Merger dated as of October 24, 2014 by and among Access Midstream Partners, L.P. (the "Partnership"), Access Midstream Partners GP, L.L.C., VHMS LLC, Williams Partners L.P. ("Legacy WPZ") and Williams Partners GP LLC, each of the outstanding common units representing limited partner interests in Legacy WPZ held by Williams Gas Pipeline Company, LLC ("WGP") converted into 0.80036 Common Units representing limited partner interests in the Partnership ("ACMP Common Units," and such conversion, the "Merger Exchange"). As a result of the Merger Exchange, the Partnership issued to WGP 245,252,440 ACMP Common Units on February 2, 2015. The Partnership changed its name to Williams Partners L.P. on February 2, 2015. Giving effect to the Merger Exchange described in footnote 1 above, The Williams Companies, Inc. ("Williams") indirectly beneficially owns (a) 339,664,088 Common Units held by WGP, a wholly owned subsidiary of Williams (b) the incentive distribution rights in the Partnership (c) the 2% general partner interest in the Partnership, and (d) 13,725,843 Class B Units held by WGP, which is all of the Class B Units outstanding. /s/ William H. Gault, Assistant Secretary 2015-02-03 William H. Gault, Assistant Secretary 2015-02-03