Vector Pipeline L.P.

Original Volume No. 1

Effective Date: 12/01/2003, Docket: RP03-489-001, Status: Effective

Substitute Second Revised Sheet No. 5 Substitute Second Revised Sheet No. 5 : Effective

Superseding: First Revised Sheet No. 5

PRELIMINARY STATEMENT

Vector Pipeline L.P. ("VectorTM" or "Transporter") is a limited partnership

formed under the laws of the State of Delaware. Transporter is a "natural gas

company" as defined by the Natural Gas Act ("NGA"), 15 U.S.C. Sections 717-

717w, and is subject to the jurisdiction of the Federal Energy Regulatory

Commission ("Commission"). Transporter owns and operates a natural gas

transmission system which extends from interconnections with various

interstate natural gas pipelines at or near Joliet, Illinois and traverses

through Illinois, Indiana, and Michigan to an interconnection at the United

States-Canadian border with Vector Pipeline Limited Partnership.

Transporter is engaged in the business of transporting natural gas for

shippers in interstate commerce on a firm and interruptible basis. The

transportation of natural gas in interstate commerce is provided pursuant to a

Certificate of Public Convenience and Necessity issued to Transporter by the

Commission under section 7(c) of the NGA, and pursuant to a blanket

certificate issued to Transporter for the activities specified in Part 284 of

the Commission's regulations, as amended from time to time.

Transporter will undertake the transportation of natural gas only under

written agreement(s) acceptable to Transporter upon consideration of existing

commitments, operating conditions, and any other factors deemed pertinent by

Transporter.