Northern Natural Gas Company                                           First Revised Sheet No. 66B.27
FERC Gas Tariff                                                                           Superseding
Fifth Revised Volume No. 1                                                  Original Sheet No. 66B.27










                                  SHEET NO. 66B.27 IS RESERVED FOR FUTURE USE



















































Issued by: Mary Kay Miller, V.P. Regulatory & Government Affairs
Issued on: March 31, 2010                                                   Effective: April 1, 2010