Transwestern Pipeline Company, LLC

Third Revised Volume No. 1

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Effective Date: 07/18/2010, Docket: RP10-853-000, Status: Effective

Third Revised Sheet No. 227 Third Revised Sheet No. 227

Superseding: Second Revised Sheet No. 227

DEFAULT

OPERATOR BALANCING AGREEMENT

FORM OF AGREEMENT

(continued)

4. a) The actual physical flow at each Interconnect Point each month will be determined

and communicated in writing by the Interconnect Point Operator to the non-

operating Party no later than the 12th of the succeeding month. The Interconnect

Point Operator shall be the Party which operates the meter at each Interconnect

Point ("Interconnect Point Operator"). Any Operational Imbalance for any calendar

month shall be determined on a dekatherm basis and shall be dollar-valued as provided

for in Section 5 herein.

b) In the event the parties fail to resolve an Operational Imbalance within ninety (90)

days from the end of the month in which the imbalance occurs, or within such other time

period which has been mutually agreed to by the Parties, interest shall accrue on the dollar

value of the Operational Imbalance from the first day of the first month after the imbalance

occurred until the date of payment, in kind or in cash, at the interest rate set forth in 18 CFR

154.67(c)(2)(iii)(A), as may be amended from time to time; provided however, such interest

charges shall not be assessed if Transporter is unable to schedule payback gas or Company

is unable to receive payback gas from Transporter. Additionally, with respect to Operational

Imbalances resulting from under-deliveries by Company which are not resolved

within the time specified herein, all subsequent deliveries by Company to

Transporter at the Interconnect Point may first be credited by Transporter to the

existing Operational Imbalance, and thereafter, to Shippers' scheduled quantities. If the

Party owing an Operational Imbalance does not resolve such Operational Imbalance within six

months of the last day of the month during which such Operational Imbalance was incurred, then

the other Party may, at any time after the expiration of such six month period, submit an

invoice to the Party owing such Operational Imbalance for an amount equal to the Dollar Valued

Operational Imbalance, as determined and adjusted pursuant to Section 5 below. Such invoice

shall be payable in full in accordance with the billing and payment provisions set forth in

the General Terms and Conditions.