Western Gas Interstate Company

Third Revised Volume No. 1

Effective Date: 06/01/1993, Docket: RS92- 53-003, Status: Effective

Revised Original Sheet No. 256 Revised Original Sheet No. 256 : Superseded

GENERAL TERMS AND CONDITIONS

(continued)

(f) The heating value shall be determined by using a

suitably located acceptable calorimeter, or

calculation from fractional analysis, or methods

outlined in A.G.A. Gas Measurement Committee Report

No. 5, as may be amended or modified from time to

time, or other mutually accepted methods.

(g) The MMBTU delivered shall be calculated either by

multiplying the Mcf Delivered by a fraction the

numerator of which is the Heat Content and the

denominator of which is 1,000.

3.3 Each test provided in this section shall be used in the

computation for the measurement of receipts and deliveries

until the next succeeding test.

4. MEASUREMENT EQUIPMENT:

4.1 Installation and Operation by Western - Western shall

install, maintain and operate, at its own expense, at or

near each Delivery Point and Receipt Point, a measuring

station properly equipped with meters and other necessary

equipment by which the quantity of gas delivered to Western

or to Buyer or Shipper, as the case may be, shall be

measured. The quantity of gas received or delivered

hereunder shall be measured in accordance with Section 3.2

and with the published recommendations of the American Gas

Association as amended or superseded from time to time.

Where Buyer and Western so agree, Buyer, at the request of

Western, will change the charts on the meters at the

Receipt Point(s) and Delivery Point(s) daily or so

frequently as requested and send them promptly by mail to

Western without charges or cost to Western.

4.2 Calibration, Test of and Access to Meters - Buyer or

Shipper shall have the right to have representatives

present at the time of any installing, cleaning, changing,

repairing, inspecting, testing, calibrating or adjusting

done in connection with Western's measuring equipment used

in the measurement of receipts or deliveries of gas. The

accuracy of Western's measuring equipment may be verified