Guardian Pipeline, L.L.C.

Original Volume No. 1

Effective Date: 08/01/2010, Docket: RP10-926-000, Status: Effective

Third Revised Sheet No. 51 Third Revised Sheet No. 51

Superseding: Second Revised Sheet No. 51

RATE SCHEDULE IT-1 (Continued)

INTERRUPTIBLE TRANSPORTATION SERVICE

interruptible. Service under this Rate Schedule shall not

commence until Transporter and Shipper have executed a Rate

Schedule IT-1 Service Agreement.

3.3 Except as provided in Section 27 of the GT&C, Transporter

shall have no obligation to add any facilities or expand

the capacity of its Pipeline Facilities in order to provide

transportation service under this Rate Schedule.

3.4 Nominations and scheduling of service under this Rate

Schedule shall be in accordance with the procedures set

forth in Sections 11 and 12 of the GT&C.

3.5 Allocations of capacity shall be determined in accordance

with Section 13 of the GT&C.

4. POINTS OF RECEIPT AND DELIVERY, AND RATES OF FLOW

4.1 All Points of Receipt into Transporter's Pipeline

Facilities from Joliet, Illinois to Ixonia, Wisconsin shall

be available on an interruptible basis for nomination by

Shippers who have executed an IT-1 Service Agreement.

4.2 All Points of Delivery out of Transporter's Pipeline

Facilities from Joliet, Illinois to Ixonia, Wisconsin shall

be available on an interruptible basis for nomination by

Shippers who have executed an IT-1 Service Agreement.

4.3 Shipper shall deliver or cause to be delivered into

Transporter's Pipeline Facilities Natural Gas at rates of

flow in accordance with Section 15 of the GT&C.

5. RATES AND CHARGES

5.1 The applicable maximum and minimum rates for service under this

Rate Schedule are set forth on the currently effective

Statement of Rates and are incorporated herein by reference.

The rates under this Rate Schedule are subject to discount,

negotiation, change and adjustment pursuant to Section 26 of

the GT&C and pursuant to Shipper's