Transwestern Pipeline Company

Second Revised Volume No. 1

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Effective Date: 05/01/2001, Docket: RP01-365-000, Status: Effective

Eighth Revised Sheet No. 63 Eighth Revised Sheet No. 63 : Effective

Superseding: Seventh Revised Sheet No. 63

GENERAL TERMS AND CONDITIONS

(continued)

6.2 Access to Billing Data

Transporter and Shipper shall have the right at all reasonable

times to examine the books, records, and charts of each other to

the extent necessary to verify the accuracy of any billing,

statement, charge or computation made by the other pursuant to

any provision of this FERC Gas Tariff.

7. PAYMENT

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7.1 Monthly Bills

Shipper shall pay Transporter by wire transfer of federal funds,

unless otherwise agreed, on or before the 10th day following the

invoice date for all sums due for the preceding month under the

applicable Rate Schedule as billed by Transporter, except when

such payment day is a Saturday, Sunday, or bank holiday, in which

case payment is due the following business day. Any payment

shall be considered to have been made on the date when such

payment is wire transferred by Shipper to an address designated

by Transporter. Notwithstanding the foregoing, FTS-2 shippers

shall have the option to pay by wire transfer or normally

accepted business practice.

Shipper shall submit supporting documentation with any payment

and shall identify invoice numbers on all payments. In the event

the Shipper's payment differs from the invoiced amount, Shipper

shall provide remittance detail 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.

7.2 Disputed Bills

Should Shipper fail to pay any or all of the amount of any bill

for gas transported when such sum is due, Transporter may charge

interest on the unpaid portion of the bill computed from the due

date until the date of payment at the same rate of interest and

in the same manner as prescribed for pipeline refunds as set

forth in Section 154.67(c)(2) of the Federal Energy Regulatory

Commission's Regulations under the Natural Gas Act. If such

failure to pay continues for 30 days or more after payment is

due, Transporter, in addition to any other remedy it has

(including termination if the service is being provided under the

Capacity Release Program contained in Section 30 of the General

Terms and Conditions of this Tariff), may, subject to the

authorization of regulatory bodies having jurisdiction, suspend

transportation of gas for Shipper until such amount shall have

been