Columbia Gulf Transmission Company

Second Revised Volume No. 1

Effective Date: 04/01/2004, Docket: RP00-326-004, Status: Suspended

Second Revised Sheet No. 91 Second Revised Sheet No. 91 : Suspended

Superseding: First Revised Sheet No. 91

IMS RATE SCHEDULE

IMBALANCE MANAGEMENT SERVICE

1. AVAILABILITY

(a) Service under this Rate Schedule is available from Columbia Gulf Transmission Company

(Transporter) to any Shipper provided that (i) Transporter has sufficient facilities and transportation

capacity available to receive gas from or on behalf of Shipper and deliver gas to or for Shipper, (ii) Shipper

has submitted a valid request for service under Section 3 (Requests for Service) of the General Terms and

Conditions, (iii) Shipper has executed an IMS Service Agreement with Transporter for short-term imbalance

management parking or lending service (IMS Parking Service or IMS Lending Service), and (iv) Shipper complies

with the provisions of this Rate Schedule and with all other applicable provisions of this Tariff.

2. APPLICABILITY AND CHARACTER OF SERVICE

(a) The service under this Rate Schedule is available to any Shipper who delivers gas to

Transporter (i) at Rayne, Louisiana or points north for delivery to points north of Rayne, Louisiana on

Transporter's mainline system, up to and including the interconnection of the facilities of Transporter and

Columbia Gas Transmission Corporation, and (ii) in Transporter's contiguous onshore and offshore lateral

systems.

(b) The service provided under this Rate Schedule shall be performed under Subpart B or G of Part

284 of the Commission's Regulations. Subject to the limitations set forth below, service under this Rate

Schedule shall consist of parking or lending gas on any Day; provided however, each IMS Parking Service or IMS

Lending Service under this Rate Schedule shall be provided for a maximum term of one (1) Day. Each IMS

Parking Service or IMS Lending Service shall be provided pursuant to a master IMS Service Agreement. Such

service shall be provided on an interruptible basis, subject to quantity limitations set forth in Shipper's

IMS Service Agreement, and shall consist of:

(i) IMS Parking Service. IMS Parking Service is an interruptible service which provides

for (1) the receipt by Transporter of gas quantities delivered by Shipper to the point(s) of service

agreed to by Transporter and Shipper on Transporter's system for receipt of parked quantities; (2)

Transporter holding the parked quantities on Transporter's system; and (3) the return of parked

quantities to Shipper at the same point(s), or other mutually agreed upon point(s) on Transporter's

system and within one (1) Day.

(ii) IMS Lending Service. IMS Lending Service is an interruptible service which provides

for (1) the receipt by Shipper of gas quantities from Transporter at the point(s) of service agreed

to by Transporter and Shipper on Transporter's system for delivery of loaned quantities of gas; and

(2) the subsequent return of the loaned quantities of gas to Transporter at the same point(s), or

other mutually agreed upon point(s) on Transporter's system and within one (1) Day.

receive or deliver gas quantities at the designated point(s) of service for IMS Parking or IMS Lending Service

hereunder. Transportation service is not provided under this Rate Schedule. If Transporter and Shipper agree

that Shipper may receive parked quantities or return loaned quantities under this Rate Schedule at point(s)

other than the point(s) of the park or loan, then Shipper shall accomplish such transactions pursuant to

nominations under separate transportation agreement(s) with Transporter to effectuate the receipt or delivery

of gas to or from other point(s).