**Exhibit24****WILLIAMS PARTNERS GP LLC****POWER OF ATTORNEY**     KNOW ALL MEN BY THESE PRESENTS that each of the undersigned individuals, in theircapacity as a director or officer, or both, as hereinafter set forth below their signature, ofWilliams Partners GP LLC, a Delaware limited liability company (the “Company”), as generalpartner of Williams Partners L.P. (the “Partnership”), does hereby constitute and appointJAMES J. BENDER, WILLIAM H. GAULT, and BRIAN K. SHORE their true and lawful attorneys and eachof them (with full power to act without the others) their true and lawful attorneys for themand in their name and in their capacity as a director or officer, or both, of the Company, ashereinafter set forth below their signature, to sign the Partnership’s Annual Report to theU.S. Securities and Exchange Commission on Form 10-K for the fiscal year ended December 31,2006, and any and all amendments thereto or all instruments necessary or incidental inconnection therewith; and     THAT the undersigned Company does hereby constitute and appoint JAMES J. BENDER, WILLIAMH. GAULT, and BRIAN K. SHORE its true and lawful attorneys and each of them (with full powerto act without the others) its true and lawful attorney for it and in its name and on itsbehalf, and on behalf of the Partnership, to sign said Form 10-K and any and all amendmentsthereto and any and all instruments necessary or incidental in connection therewith.     Each of said attorneys shall have full power of substitution and resubstitution, and saidattorneys or any of them or any substitute appointed by any of them hereunder shall have fullpower and authority to do and perform in the name and on behalf of each of the undersigned, inany and all capacities, every act whatsoever requisite or necessary to be done in thepremises, as fully to all intents and purposes as each of the undersigned might or could do inperson, the undersigned hereby ratifying and approving the acts of said attorneys or any ofthem or of any such substitute pursuant hereto.     IN WITNESS WHEREOF, the undersigned have executed this instrument, all as of the20th day of February, 2007.           /s/ Steven J. Malcolm Steven J. Malcolm   /s/ Donald R. Channel Donald R. Chappel    Chairman of the Board   Chief Financial Officer and    President and   Director    Chief Executive Officer   (Principal Financial Officer)    (Principal Executive Officer)          /s/ Ted T. Timmermans        Ted T. Timmermans        Chief Accounting Officer and        Controller        (Principal Accounting Officer)    
 

 
         /s/ Alan S. Armstrong   /s/ Thomas C. Knudson         Alan S. Armstrong   Thomas C. Knudson  Chief Operating Officer and   Director  Director             /s/ Bill Z. Parker   /s/ Phillit) D. Wrisht         Bill Z. Parker   Phillip D. Wright  Director   Director         /s/ Alice M. Peterson             Alice M. Peterson      Director                             Williams Partners GP LLC, as general partner of    Williams Partners L.P.             By: /s/ James J. Bender             James J. Bender      General CounselATTEST:             /s/ William H. Gault             William H. Gault      Assistant Secretary      
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**WILLIAMS PARTNERS GP LLC**Secretary’s Certificate     I, the undersigned, WILLIAM H. GAULT, Assistant Secretary of WILLIAMS PARTNERS GP LLC, aDelaware limited liability company (the “Company”) and general partner of WILLIAMS PARTNERSL.P. (the “Partnership”), do hereby certify that at a regular meeting of the Board ofDirectors of the Company, duly convened and held on February 20, 2007, at which a quorum ofsaid Board was present and acting throughout, the following resolution was duly adopted:     **RESOLVED**that the chairman of the board, chiefexecutive officer, general counsel, and controller ofWilliams Partners GP LLC, acting in its own capacity and in its capacity as the general partner of WilliamsPartners L.P. (the “Partnership”), be, and each of themhereby is, authorized and empowered to execute a Power ofAttorney for use in connection with the execution andfiling of the Partnership’s Annual Report on Form 10-K forthe fiscal year ended December 31, 2006, as required by theSecurities Exchange Act of 1934.     **IN WITNESS WHEREOF,**I have hereunto set my hand and affixed the seal of WilliamsPartners GP LLC this 20th day of February 2007.                                                              /s/ William H. Gault   William H. Gault     Assistant Secretary [SEAL] 
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