Energy West Development, Inc.

Original Volume No. 1

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Effective Date: 06/11/2010, Docket: RP10-732-000, Status: Effective

First Revised Sheet No. 2 First Revised Sheet No. 2

Superseding: Original Sheet No. 2

PRELIMINARY STATEMENT

Energy West Development, Inc. (referred to in this Tariff as "Transporter") is a corporation

engaged in the business of transporting Natural Gas in interstate commerce under

authorization granted by, and subject to the jurisdiction of, the Federal Energy Regulatory

Commission.

Transporter operates a pipeline system extending in a southwesterly direction from its point

of origination in southern Montana to its terminus in northern Wyoming. Transporter provides

Transportation Service on a firm and interruptible basis.

It is the policy of Transporter to provide Transportation Service only under written contract

acceptable to Transporter after consideration of its commitments to others, delivery capacity

and other factors deemed pertinent by Transporter.

This FERC Gas Tariff or “Tariff” is filed in compliance with Parts 154 and 284 of the

Commission's Regulations under the Natural Gas Act.