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

Fifth Revised Sheet No. 269 Fifth Revised Sheet No. 269

Superseding: Fourth Revised Sheet No. 269

TRANSPORTATION GENERAL TERMS AND CONDITIONS

(Continued)

8. OPERATING PROVISIONS

8.1 FIRM SERVICE (Continued)

(i) Hourly Entitlement Enhancement Nomination

(i) "Hourly Entitlement Enhancement Nomination" or "HEEN" is a

nomination that shall be subject to the following conditions:

(A) The nomination may only be submitted by Shippers under

Rate Schedules FT-1, FT-H, NNTD, or NNTH; and

(B) The nomination may only be submitted for the Timely or

Evening Nomination Cycles and must involve a HEEN

Qualified Delivery Point, as described in Section

8.1(i)(ii)(I)(1) below.

1. Shipper may decrease a previously scheduled HEEN

nomination in any nomination cycle. As further

described in Section 8.1(i)(iii)(A), Transporter

may decrease Shipper's HEEN nomination in any

nomination cycle to reflect a change in the related

Flowing Gas nomination.

2. Shipper may increase a previously scheduled HEEN

nomination in the Evening Nomination Cycle. As

further described in Section 8.1(i)(iii)(B),

Transporter may increase Shipper's HEEN nomination

in any intraday nomination cycle to reflect a

change in the related Flowing Gas nomination.