Trunkline Gas Company

First Revised Volume No. 1

Effective Date: 02/06/1999, Docket: RP99-200-000, Status: Effective

Fourth Revised Sheet No. 333 Fourth Revised Sheet No. 333 : Effective

Superseding: Third Revised Sheet No. 333

RATE SCHEDULE IT (Continued)

INTERRUPTIBLE TRANSPORTATION SERVICE

FORM OF SERVICE AGREEMENT

Exhibit A hereto states the Points of Receipt and Points of

Delivery. Exhibit A may be revised from time to time by written

agreement between Trunkline and Shipper and, as may be revised, is by

this reference incorporated in its entirety into this Agreement and made

an integral part hereof.

ARTICLE 2 - TERM

This Agreement shall be effective from the date first stated

above. Trunkline shall provide interruptible Transportation service for

Shipper pursuant to this Agreement from until

, when this Agreement shall expire.

ARTICLE 3 - RATES AND CHARGES

For the services provided or contracted for hereunder, Shipper

agrees to pay Trunkline the then-effective, applicable rates and charges

under Trunkline's Rate Schedule IT filed with the Commission, as such

rates and charges and Rate Schedule IT may hereafter be modified,

supplemented, superseded, or replaced generally or as to the service

hereunder. Trunkline reserves the right from time to time to

unilaterally file and to make effective any such changes in the terms or

rate levels under Rate Schedule IT and the applicability thereof, the

General Terms and Conditions or any other provisions of Trunkline's

Tariff, subject to the applicable provisions of the Natural Gas Act and

the Commission's Regulations thereunder.

From time to time Shipper and Trunkline may agree in writing on a

level of discount of the otherwise applicable rates and charges

hereunder pursuant to the effective applicable provisions of Rate

Schedule IT and subject to the Regulations and Orders of the Commission.

For example, Shipper and Trunkline may agree that a specified discounted

rate shall apply: (a) only to certain Quantities under this Agreement;

(b) only if specified Quantity levels are actually achieved or only with

respect to Quantities below a specified level; (c) only during specified

time periods; (d) only to specified Points of Receipt, Points of

Delivery, mainline segments, transportation paths or defined

geographical areas; or (e) in a specified relationship to the Quantities

actually transported (i.e., that the rates shall be adjusted in a

specified relationship to Quantities actually transported); provided,