Riverside Pipeline Company, L. P.

First Revised Volume No. 1

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Effective Date: 10/01/1993, Docket: RS92- 48-001, Status: Effective

Original Sheet No. 71 Original Sheet No. 71 : Effective

GENERAL TERMS AND CONDITIONS

4. MEASUREMENT

4.1 Metering:

(a) The gas transported by Riverside hereunder shall be metered

by orifice or other meters of standard make to be operated

and kept in repair by Riverside.

(b) The volumes of gas delivered by Riverside for the account of

each Shipper will be metered by Riverside.

(c) The receipts of gas by Riverside into Riverside's pipeline

shall be considered to be equal to the volume, composition

and heating content of the gas delivered by Riverside.

4.2 Measurement Basis

(a) The unit of measurement of gas received and delivered

hereunder shall be one million British thermal units

(MMBtu). Measurement will be according to the Second

Edition of ANSI/API 2530-1985, entitled, "Orifice Metering

of Natural Gas and Other Related Hydrocarbon Fluids", as

amended or revised.

(b) Orifice meters shall be constructed in accordance with the

recommendations prescribed in the latest edition of the

ANSI/API 2530 measurement standard and any subsequent

amendments or replacements thereto. Where other types of

meters are used, calculations shall be performed per

normally accepted industry practices, methods or standards.

(c) The temperature of the gas shall be determined by means of

continuously recording thermometers unless it is mutually

agreed to use a 60 degree Fahrenheit flowing temperature.

The average flowing temperatures, recorded to the nearest

one degree Fahrenheit during each day, shall be deemed the

daily gas temperature and shall be used in computing the

daily gas received or delivered hereunder.