Horizon Pipeline Company, L.L.C.

Original Volume No. 1

Effective Date: 10/01/2002, Docket: RP02-415-000, Status: Effective

Original Sheet No. 150A Original Sheet No. 150A : Effective

GENERAL TERMS AND CONDITIONS

----------------------------

(3) Sending the Imbalance Trade Notification, and

(4) Reflecting the trade prior to or on the next

monthly Shipper Imbalance or cashout.

(d) Imbalance trades can only be withdrawn by the

initiating trader and only prior to the confirming trader's

confirmation of the trade. Imbalance trades are considered final

when confirmed by the confirming trader and effectuated by Horizon.

(e) After receipt of an Imbalance Trade Confirmation,

Horizon shall send the Imbalance Trade Notification to the

initiating trader and the confirming trader no later than noon

(Central Clock Time) the next Business Day.

(f) Shipper imbalances remaining after the imbalance

netting and trading procedures set out in subsections (a)-(e)

shall be cashed out as described in Section 11.3 of these General

Terms and Conditions.