Horizon Pipeline Company, L.L.C.

Original Volume No. 1

Effective Date: 04/18/2002, Docket: CP00-129-001, Status: Effective

Original Sheet No. 204 Original Sheet No. 204 : Effective

GENERAL TERMS AND CONDITIONS

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18.8 ELECTRONIC FLOW COMPUTERS

It is recognized that electronic or other types of flow

computers have been developed that permit the direct computation of

gas flows without the use of charts. Where the substitution of these

devices is deemed acceptable by Horizon in the exercise of its

reasonable judgment, their use for custody transfer will be permitted.

18.9 NEW MEASUREMENT TECHNIQUES

If, at any time, a new method or technique is developed

with respect to gas measurement or the determination of the factors

used in such gas measurement, such new method or technique may be

substituted by Horizon in exercise of its reasonable judgment. Horizon

shall promptly inform all Shippers of any new techniques adopted.

18.10 CALIBRATION AND TEST OF METERS

The accuracy of all measuring equipment shall be verified

by Horizon at reasonable intervals, and if requested, in the presence

of representatives of Shipper, but neither Shipper nor Horizon shall

be required to verify the accuracy of such equipment more frequently

than once in any thirty (30) day period. If either party at any time

desires a special test of any measuring equipment, it will promptly

notify the other, and the parties shall then cooperate to secure a

prompt verification of the accuracy of such equipment.

18.11 CORRECTION OF METERING ERRORS

If, upon any test, any measuring equipment is found to be

inaccurate, such equipment shall be adjusted immediately to measure

accurately. If, upon any test, the measuring equipment in the

aggregate is found to be inaccurate by one percent (1%) or more at a

recording corresponding to the average hourly rate of gas flow for the

period since the last preceding test, any payments based thereon shall

be corrected pursuant to Section 12.5 hereof, at the rate of such

inaccuracy for any period which is known definitely or agreed upon,

but in case the period is not known definitely or agreed upon, such

correction shall be for a period extending over one-half (1/2) of the

time elapsed since the date of the last test. Measurement data

corrections should be processed within six (6) months of the

production month with a three (3) month rebuttal period. This standard

shall not apply in the case of deliberate omission or

misrepresentation or mutual mistake of fact. Parties' other statutory

or contractual rights shall not otherwise be diminished by this

standard.