GENERAL TERMS AND CONDITIONS
                                  (Continued)
   
   
                  and the parties shall then cooperate to secure a prompt
                  verification of the accuracy of such equipment.
                  Transportation and related expenses involved in the
                  testing of meters shall be borne by the party incurring
                  such expenses.
   
                  The Operator, for purposes of this section, shall be the
                  owner of the equipment referenced herein, or the agent
                  of such owner, or such other person as the parties may
                  agree in writing.
   
                  If, upon any test, Operator's measuring equipment is
                  found to be in error, such errors shall be taken into
                  account in a practical manner in computing the
                  deliveries.  If the resultant aggregate error in the
                  computed receipts or deliveries is not more than 0.5%
                  for chromatograph or calorimeter and two percent (2%)
                  for other measuring equipment, then previous receipts or
                  deliveries shall be considered accurate.  All equipment
                  shall, in any case, be adjusted at the time of test to
                  record correctly.  If, however, the resultant aggregate
                  error in computing receipts or deliveries exceeds 0.5%
                  for chromatograph or calorimeter and two percent (2%)
                  for other measuring equipment, at a recording
                  corresponding to the average hourly rate, of Gas flow
                  rate for the period since the last preceding test, the
                  previous recordings of such equipment shall be corrected
                  to zero error for any period which is known definitely
                  or agreed upon, such correction shall be for a period
                  extending over one-half of the time elapsed since the
                  date of the last test.
   
            6.4   In the event any measuring equipment is out of service,
                  or is found registering inaccurately and the error is
                  not determinable by test, previous recordings of
                  injections or withdrawals through such equipment shall
                  be determined as follows; provided, however, that the
                  correction period shall not exceed one (1) year:
   
                  (a)   by using the registration of any check meter or
                        meters if installed and accurately registering, or
                        in the absence of (a);
   
                  (b)   by correcting the error if the percentage of error
                        is ascertainable by calibration, special test or
                        mathematical calculation, or in the absence of
                        both (a) and (b) then;