Westgas Interstate, Inc.

First Revised Volume No. 1

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Effective Date: 05/01/2001, Docket: RP01-348-000, Status: Effective

First Revised Sheet No. 49C First Revised Sheet No. 49C : Effective

Superseding: Original Sheet No. 49C

GENERAL TERMS AND CONDITIONS

(Continued)

Regarding inadequate detail supporting documentation,

supporting documentation should be provided upon request,

with the timing of the supporting documentation to follow

the timing of the flowing gas transactions.

10.5 Party making payment should submit supporting

documentation; party receiving payment should apply

payment per supporting documentation provided by the

paying party; and if payment differs from invoiced amount,

remittance detail should be provided with the payment,

except when payment is made by electronic funds transfer

(EFT), in which case the remittance detail is due within

two Business Days of the payment due date. If invoice is

in dispute, pay portion not in dispute and provide

documentation identifying basis for the dispute.