U-T Offshore System, L.L.C.

Third Revised Volume No. 1

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Effective Date: 12/01/1995, Docket: RP94-161-006, Status: Effective

First Revised Sheet No. 41 First Revised Sheet No. 41 : Superseded

Superseding: Original Sheet No. 41






3.5 Specific Gravity. The specific gravity of the Gas shall be determined at each

point of measurement by continuous sampler or other methods mutually agreeable

to both parties.

3.6 Supercompressibility. The supercompressibility of the Gas (deviation from the

laws for ideal gases) shall be determined by one of the following methods:


(a) By use of Burnett type apparatus. Such determination to be made

within 30 days of commencement of service under Rate Schedules

FT and IT and annually thereafter.


(b) Or, if agreeable to Shipper, by use of the tables or, formulae

published by the American Gas Association in conjunction with

the Gas Measurement Committee Report referred to in Section 3.6.

Determinations of the molecular percentage of nitrogen and

carbon dioxide in the Gas will be made within 30 days of

commencement of deliveries under Rate Schedules FT and IT and

at least quarterly thereafter. The molecular percentage of

nitrogen and carbon dioxide thus determined will be used to

determine the supercompressibility factors during the ensuing

period, with corrections for specific gravity, temperature and



3.7 Measuring Equipment. Unless otherwise agreed upon, Shipper will cause to be

provided, maintained, and operated necessary offshore platforms and measuring and

regulating stations equipped with flow meters, continuous gas samplers and other

necessary measuring equipment by which its volumes of Gas delivered to U-TOS

hereunder shall be determined. Unless otherwise agreed upon, U-TOS shall cause

to be installed, operated and maintained at its expense a measuring and

regulating station or stations equipped with flow meters, gas analyzer and other

necessary measuring equipment for the measurement of Gas redelivered to or for

the account of Shipper; such measuring and regulating stations shall be so

installed at the northern terminus of the System or one shall be installed at the

mutually agreeable points onshore in the vicinity of Johnson's Bayou, Louisiana

to provide measurement on a compatible basis. All flow, measuring, testing, and

related equipment shall be of standard manufacture and type approved by U-TOS,

and the size, type, and specifications of such equipment shall also be approved

by U-TOS before same is fabricated and installed. In the event Shipper fails to

comply with U-TOS' measurement standards for installation andþor operation and

maintenance of such facilities, as described in Sections 3.6, 3.7 and 6.1, U-TOS

reserves its right to suspend service for nonþcompliance at any time during the

term of the agreement, to preserve the control, operation and accurate gas

measurement on its system. Either of the Parties may install check measuring

equipment, provided that such equipment shall be so installed as not to interfere

with the operation of the other. Shipper and U-TOS, in the presence of each

other, shall have access to all measuring equipment at all reasonable times, but

the reading, calibrating, and adjusting thereof shall be done by the owner,

unless otherwise agreed upon. Shipper and U-TOS shall have the right to be

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

inspecting, testing, calibrating, or adjusting done in connection with all

measuring equipment. The records from such measuring equipment shall remain the

property of their owner, but upon request, either Party will cause to be

submitted to the other records together with calculations therefrom, for

inspection, subject to return within 30 days after receipt thereof. Reasonable

care shall be exercised in the installation, maintenance, and operation of

measuring equipment so as to avoid any inaccuracy in the determination of the

volume of Gas received and delivered.