Viking Gas Transmission Company

Original Volume No. 1

Effective Date: 06/01/1991, Docket: GT91- 25-000, Status: Effective

First Revised Sheet No. 81C First Revised Sheet No. 81C : Superseded

Superseding: Original Sheet No. 81C

GENERAL TERMS AND CONDITIONS (Continued)

for each hour of each day by a calorimeter or as determined by chromatographic

analysis of a sample of gas collected daily during the month, or any other method

mutually agreed upon.

ratio of the Btu per cubic foot delivered to 1,000. For purposes of this

determination the specific gravity and heating value shall be determined at

approximately the same time.

(d) The temperature of the gas passing through the meters shall be determined for any

day by the continuous use of a recording thermometer so installed that it may

properly record the temperature of the gas flowing through the meters. The

arithmetic average of the temperature recorded each day shall be used in computing

gas volumes.

(e) The specific gravity of the gas delivered shall be determined by the use of a

recording gravitometer, which shall be checked at least once each month, or any

other method mutually agreed upon.

(f) The deviation of the natural gas from Boyle's Law shall be determined by the use of

the tables of formulae published by the American Gas Association Par Research

Project NX-19 corrected for carbon dioxide and nitrogen, or any superseding

applicable tables published by the American Gas Association.

Determinations of the molecular percentage of N2 and CO2 in the gas shall be made

within thirty (30) days after commencement of deliveries and at least quarterly

thereafter. The molecular percentage of N2 and CO2 thus determined will be used to

determine the supercompressibility factors during the ensuing period, with

corrections for specific gravity, temperature and pressure.

3. Determination of Deliveries and Receipts: Seller shall determine the allocation of

quantities of gas received at any Receipt Point or delivered at any Delivery Point among

Shippers and services as follows: (a) In accordance with allocation procedures

specifically agreed to by Seller and th operator of the Receipt Point or of the Delivery

Point, in advance of gas flow or at the beginning of any month thereafter, unless a

lesser period of time is mutually agreed upon by Seller and the operator; (b) In the

absence of a methodology set forth in (3)(a), Shipper shall cause the operator at the

Receipt Point or Delivery Point to advise Seller in advance of gas flow and at the

beginning of each month thereafter, unless a lesser period of time is mutually agreed

upon by Seller and the operator, or the methodology to be utilized in determining actual

receipts or deliveries among all Shippers and services scheduling service at such Receipt

Point or Delivery Point (i.e., which services are baseloaded and which services take the

swing); provided, however, that such methodology must allocate the receipts or

deliveries, to the maximum extent possible, in accordance with confirmed nominations; or