Horizon Pipeline Company, L.L.C.

Original Volume No. 1

Effective Date: 10/12/2009, Docket: RP09-856-001, Status: Pending

Substitute Second Revised Sheet No. 302 Substitute Second Revised Sheet No. 302

Superseding: First Revised Sheet No. 302

EXHIBIT A

DATED ............

EFFECTIVE ....................

(CON'T)

geographical area(s); that a specified discounted rate(s) will apply in a specified

relationship to the volumes actually transported; (i.e., that the reservation charge

will be adjusted in a specified relationship to volumes actually transported); and/or

that a specific discount rate shall apply only to reserves dedicated by Shippers to

Horizon's system. Notwithstanding the foregoing, no discount agreement may provide that

an agreed discount as to a certain volume level will be invalidated if the Shipper

transports an incremental volume above that agreed level. In addition, the discount

agreement may include a provision that if one rate component which was at or below the

applicable maximum rate at the time the discount agreement was executed subsequently

exceeds the applicable maximum rate due to a change in Horizon's maximum rates so that

such rate component must be adjusted downward to equal the new applicable maximum rate,

then other rate components may be adjusted upward to achieve the agreed overall rate,

so long as none of the resulting rate components exceed the maximum rate applicable to

that rate component. Such changes to rate components shall be applied prospectively,

commencing with the date a Commission order accepts revised tariff sheets. However,

nothing contained herein shall be construed to alter a refund obligation under

applicable law for any period during which rates which had been charged under a

discount agreement exceeded rates which ultimately are found to be just and reasonable.

If the parties agree upon a rate other than the applicable maximum rate, such written

Agreement shall specify that the parties mutually agree either: (1) that the agreed

rate is a discount rate; or (2) that the agreed rate is a Negotiated Rate (or

Negotiated Rate Formula). In the event that the parties agree upon a Negotiated Rate

or Negotiated Rate Formula, this Agreement shall be subject to Section 33 of the

General Terms and Conditions of Horizon's Tariff.

Fuel Gas and Unaccounted For Gas Percentage (%)

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Shipper will be assessed the applicable percentage for Fuel Gas and

Unaccounted For Gas unless Horizon and Shipper mutually agree on monetary reimbursement.