Rockies Express Pipeline LLC (Entrega)

Second Revised Volume No. 1

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Effective Date: 04/05/2010, Docket: RP10-474-000, Status: Effective

Original Sheet No. 93 Original Sheet No. 93

RATE SCHEDULE IBS (continued)

due to: 1) a lack of gas supply to Payback loan quantities; 2) a

failure of a downstream operator to confirm Shipper daily nomination

quantities equal to the Payback of park quantities; or 3)

insufficient actual flow quantities for the planned Gas Day are

allocated to Payback quantities. Upon Transporter's notice, the

Mandatory Balancing Provisions of Section 8 hereunder may apply, as

applicable, to any Daily Balance not otherwise eliminated.

7. OVERRUN SERVICE

7.1 Authorized Overrun Service. Upon request of Shipper, Transporter may

(but is not obligated to) provide balancing services on a Gas Day in

excess of: a) the MDQ; b) the Cumulative Balance; or c) confirmed

daily Access Request quantities. Balancing service park or loan

quantities in excess of such thresholds shall be offered where, in

Transporter's reasonable judgment, the Capacity and operating

capability of its System will permit such service without impairing

the ability of Transporter to meet its other obligations

("Authorized Overrun Service"). Requests for Authorized Overrun

Service shall be subject to the Authorized Overrun Service

priorities set forth in the General Terms and Conditions of this

Tariff and shall be deemed "Authorized Overrun Service Quantities or

AOR". Shipper shall pay Transporter the maximum rate for Authorized

Overrun Service Quantities, as applicable, and per this Tariff

unless otherwise agreed to in writing and set forth below:

A. For those quantities parked or loaned on any Gas Day which

exceeds the maximum IBS Agreement Cumulative Balance for parks or

loans, respectfully, an Authorized Overrun Park/Loan Balance Rate

shall apply to such quantities parked or loaned;

B. For those quantities parked or loaned on any Gas Day which

exceeds the confirmed daily Access Request quantities for park or

loan, respectfully, but within the defined MDQ of park and loan

under the IBS Agreement, an Authorized Overrun Daily Access Rate

shall apply to such excess quantities parked or loaned; and

C. For those quantities parked or loaned on any Gas Day which

exceeds the MDQ under the IBS Agreement, the Authorized IBS

Contract MDQ Overrun Rate shall apply.