Northern Natural Gas Company                                          Second Revised Sheet No. 66B.17
FERC Gas Tariff                                                                           Superseding
Fifth Revised Volume No. 1                                             First Revised Sheet No. 66B.17







                              SHEET NO. 66B.17 IS RESERVED FOR FUTURE USE
 





















































Issued by: Mary Kay Miller, V.P. Regulatory & Government Affairs
Issued on: June 30, 2009                                                     Effective: July 1, 2009