Northern Natural Gas Company                                             Second Revised Sheet No. 202
FERC Gas Tariff                                                                           Superseding
Fifth Revised Volume No. 1                                                First Revised Sheet No. 202

                             GENERAL TERMS AND CONDITIONS

              1.  DEFINITION OF TERMS
                  -------------------

                   Except where the context expressly states another meaning, the
                   following terms shall have the following meanings whenever used in
                   this Tariff:

                   Alternate Receipt Point.  The term "Alternate Receipt Point" shall
                   mean all other receipt points of Northern system other than those
                   defined as Primary Receipt Points.

                   Billing Day.  The term "billing day" shall mean the period of
                   twenty-four (24) consecutive hours beginning at 9:00 a.m. central
                   clock time and ending at 9:00 a.m. central clock time the following
                   twenty-four (24) hour period.

                   Billing Month.  The term "billing month" shall mean the period from
                   9:00 a.m. central clock time the 1st day of the calendar month to
                   9:00 a.m. central clock time the 1st day of the succeeding calendar
                   month.

                   British Thermal Unit (Btu).  The term "British thermal unit" ("Btu")
                   shall mean the amount of heat required to raise the temperature of
                   one pound of water from fifty-nine degrees Fahrenheit (59 F) to sixty
                   degrees Fahrenheit (60 F).

                   Business Day.  The term "Business Day" shall mean Monday through
                   Friday, excluding Federal Banking Holidays.

                   Bypassing Small Customers.  The term "Bypassing Small Customers"
                   shall mean Small Customers that have reduced their entitlement on
                   Nothern's system that is serving existing load and that thereafter
                   serve that existing load with incremental or new entitlement on
                   another pipeline.  Entitlement shall refer to the total TF12 Base,
                   TF12 Variable, TF5, TFX of five months or longer and GST service that
                   is in effect at the time that any reduction is made.

                   Calendar Year.  The term "calendar year" shall mean a period
                   beginning on the first day of January of each year and ending on the
                   first day of the succeeding January.

                   Central Clock Time (CCT).  The term "central clock time" or "CCT"
                   shall mean Central Standard time throughout the year, as adjusted for
                   Central Daylight time.















Issued by: Mary Kay Miller, V.P. Regulatory & Government Affairs
Issued on: November 24, 2004                                              Effective: January 1, 2005