Horizon Pipeline Company, L.L.C.

Original Volume No. 1

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Effective Date: 04/18/2002, Docket: CP00-129-001, Status: Effective

Original Sheet No. 25 Original Sheet No. 25 : Effective

RATE SCHEDULE ITS

INTERRUPTIBLE TRANSPORTATION SERVICE

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1. AVAILABILITY

This Rate Schedule ITS is available to any entity

(hereinafter called Shipper) which: (a) submits to Horizon

Pipeline Company, L.L.C. (hereinafter called Horizon) a valid

request as defined in Section 3 hereof; and (b) executes an

Interruptible Transportation Service Agreement (ITS Agreement)

with Horizon applicable to service under this Rate Schedule ITS.

The form of ITS Agreement is contained in this Tariff. There is

no limitation on the number of ITS Agreements any one Shipper may

have.

2. APPLICABILITY, CHARACTER AND PRIORITY OF SERVICE

2.1 This Rate Schedule ITS defines an interruptible

transportation service. This Rate Schedule ITS shall apply to all

gas received by Horizon for Shipper pursuant to an ITS Agreement.

As more fully set out in the General Terms and Conditions of this

Tariff, Horizon is not providing a supply service under this Rate

Schedule ITS.

2.2 Service hereunder shall consist of the acceptance by

Horizon of natural gas from or for the account of Shipper at

Receipt Point(s) under the ITS Agreement, the transportation of

that natural gas through Horizon's System, and the delivery of

that natural gas by Horizon to Shipper or for Shipper's account at

Delivery Point(s) under the ITS Agreement. Horizon shall not be

required: (a) to accept on any day gas tendered, or to deliver on

any day gas requested, in excess of the Maximum Daily Quantity

(MDQ) specified in the ITS Agreement; (b) to accept or deliver on

any day gas hereunder which is not properly nominated pursuant to

and to the extent required by the General Terms and Conditions of

this Tariff.

2.3 The service provided under this Rate Schedule ITS shall

be performed under Part 284 of the Commission's Regulations.

Shipper shall only tender gas for transportation under this Rate

Schedule ITS to the extent such service would qualify under the

applicable statutes, regulations, Commission orders and the blanket

certificate authorizing service by Horizon under this Rate Schedule.

For service under Subpart B of Part 284 of the Commission's

Regulations, Shipper shall provide to Horizon appropriate

certification, including sufficient information in order for Horizon