GENERAL TERMS AND CONDITIONS
                                  (Continued)
   
                        of Natural Gas and Other Related Hydrocarbon
                        Fluids", as such publication may be revised from
                        time to time (hereinafter referred to as "AGA
                        Report No. 3); or
   
                  (2)   A turbine meter, designed, installed, maintained
                        and operated as recommended in the latest issue of
                        American Gas Association Transmission Measurement
                        Committee Report No. 7, entitled "Measurement of
                        Fuel Gas by Turbine Meters", as such publication
                        may be revised from time to time (hereinafter
                        referred to as "AGA Report No. 7"); or
   
                  (3)   A positive displacement meter, installed and
                        operated in accordance with generally accepted
                        industry practices.
   
            (b)   Auxiliary measuring equipment shall be installed,
                  maintained and operated in accordance with generally
                  accepted industry practices.
   
            6.2(a)      The volume of Gas delivered to Seller or
                        redelivered to or for the account of Customer
                        shall be calculated by means of either an
                        electronic flow computer, or by the processing of
                        meter charts, in either case in the following
                        manner:
   
                  (1)   When the measuring equipment is an orifice meter,
                        the flow of Gas through the meter shall be
                        computed in the manner recommended in AGA Report
                        No. 3, properly using all factors set forth
                        therein.
   
                  (2)   When the measuring equipment is a turbine meter,
                        the volume of Gas delivered through the meter
                        shall be computed in the manner recommended in AGA
                        Report No. 7, properly using all factors set forth
                        therein.
   
                  (3)   When the measuring equipment is a positive
                        displacement meter, the volume of Gas delivered
                        through the meter shall be computed by properly
                        applying, to the volume delivered at flowing Gas
                        pressures and temperatures, correction factors for
                        (i) absolute static pressure, (ii) flowing Gas
                        temperature, and (iii) compressibility ratio.
   
             (b)  The volume of Gas injected or withdrawn hereunder shall
                  be computed using the standards and factors determined
                  as follows: