Northern Natural Gas Company                                             Fourth Revised Sheet No. 271
FERC Gas Tariff                                                                           Superseding
Fifth Revised Volume No. 1                                                Third Revised Sheet No. 271

                               GENERAL TERMS AND CONDITIONS

           When the gas is claimed by a Shipper to whom such gas is to be delivered, the
           Unauthorized Gas shall become an imbalance on an existing TF, TFX, LFT or TI
           Service Agreement.  Shipper shall be charged the Daily Delvery Variance Charge
           on all unauthorized quantities without application of the tolerance level and
           the out-of-balance transportation rate for redelivery.

      To claim Unauthorized Gas, the owner must submit written notice
      to Northern with verification of ownership.

      Northern will maintain a log for review by the public showing the imbalance volume,
      dollar value and Shipper.  Such log will be copied and mailed to anyone willing to
      pay copying and postage fees.















































Issued by: Mary Kay Miller, V.P. Regulatory & Government Affairs
Issued on: August 24, 2006                                             Effective: September 24, 2006