El Paso Natural Gas Company

Second Revised Volume No. 1A

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Effective Date: 04/01/2010, Docket: RP10-454-001, Status: Effective

Third Revised Sheet No. 290A.01 Third Revised Sheet No. 290A.01

Superseding: Second Revised Sheet No. 290A.01

TRANSPORTATION GENERAL TERMS AND CONDITIONS

(Continued)

10. IMBALANCE MANAGEMENT (Continued)

10.5 Allocation of Delivery Quantities

The allocation of delivery quantities shall be governed by the pre-

determined allocation methods ("PDAs") set forth in this Section 10.5 or

by an applicable operational balancing agreement ("OBA").

(a) A DP Operator may elect from one of the PDA methods described in

Section 10.5(b) for the allocation of delivery quantities.

(i) Except as provided below, a DP Operator's election of a PDA

method must be received no later than the last Business Day

of the Month preceding the effective Month and shall remain

in effect until changed by the DP Operator for the first Day

of a subsequent Month. DP Operator's election shall be

effective for a time period no less than one Month and shall

be posted on Transporter's EBB.

(A) If all affected parties consent in writing or via

email, a DP Operator can change its PDA method during

the effective Month to apply retroactively to the first

Day of such Month. Transporter shall determine and

notify all parties which are affected by such a change.

(ii) Pursuant to the applicable PDA method stated in Section

10.5(b) below, if measured gas flow at a Delivery Point is

recorded and no scheduling has occurred, the metered

quantities will be recorded on a designated default TSA

elected by the DP Operator. If such default agreement does

not belong to the DP Operator, the Shipper whose TSA is

elected as the default TSA must authorize such TSA to be

used prior to the last Business Day of the Month preceding

the effective Month and such election shall remain in place

until changed by the Shipper or DP Operator for the first

Day of the subsequent Month.

(iii)Absent the DP Operator electing the Swing method pursuant to

Section 10.5(b)(ii), quantities at a Delivery Point shall be

allocated pro rata based on scheduled quantities as

described in Section 10.5(b)(i) below. (NAESB Standard

2.3.18)