Westgas Interstate, Inc.

First Revised Volume No. 1

Effective Date: 09/01/1993, Docket: RS92- 89-002, Status: Effective

Original Sheet No. 44 Original Sheet No. 44 : Effective

GENERAL TERMS AND CONDITIONS

technique may be substituted by Transporter.

Transporter shall promptly inform all shippers of any

new techniques adopted.

5.10 CALIBRATION AND TEST OF METERS. The accuracy of all

measuring equipment shall be verified by Transporter at

reasonable intervals, and if requested, in the presence

of a representative of Shipper, but neither Shipper nor

Transporter shall be required to verify the accuracy of

such equipment more frequently than once in a 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.

5.11 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 two

percent (2%) 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 upon

inaccurate measurement shall be corrected pursuant to

10 of these General Terms and Conditions 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 of the

time elapsed since the date of the last test.

5.12 FAILURE OF MEASURING EQUIPMENT. In the event any

measuring equipment is out of service or is found

registering inaccurately and the error is not

determinable by test, or by previous recordings,

receipts or deliveries through such equipment shall be

estimated and agreed to by the parties upon the first

of the following methods which is feasible

(a) By correcting the error if the percentage of

error is ascertainable by calibration, special

test, or mathematical calculation, or, in the

absence of (a);

(b) By using the registration of any check meter

or meters, if installed and accurately

registering, or, in the absence of (a) and (b);