W T G Hugoton, LP

Original Volume No. 1

Effective Date: 08/01/2007, Docket: CP06- 90-002, Status: Effective

Original Sheet No. 150 Original Sheet No. 150 : Effective

RATE SCHEDULE IT

Interruptible Transportation Service

1. AVAILABILITY.

This Rate Schedule is available for transportation of natural gas by WTG

Hugoton LP ("WTG Hugoton") on an interruptible basis under the following terms

and conditions:

(a) Shipper has executed an Interruptible Transportation Service

Agreement ("IT Agreement") in the form contained in WTG Hugoton's FERC Gas

Tariff ("Tariff");

(b) the service shall be subject to all of the terms and conditions

contained in this Rate Schedule and the "GENERAL TERMS AND CONDITIONS" under

this Tariff; and

basis.

2. APPLICABILITY AND CHARACTER OF SERVICE.

2.1 Subject to the provisions of Rate Schedule IT and the "GENERAL TERMS AND

CONDITIONS" of this Tariff, service rendered under a IT Agreement shall be on

an interruptible basis and for a transportation quantity up to the Maximum

Daily Quantity ("MDQ"). MDQ is the volume of natural gas specified in the IT

Agreement that may be transported on a daily basis from any valid Point(s) of

Receipt to any valid Point(s) of Delivery on WTG Hugoton's system. WTG

Hugoton shall have the right to interrupt or curtail service under this Rate

Schedule IT (a) if there is insufficient capacity, (b) if the available

capacity is reduced as a result of a force majeure event as defined in Section

10, "Force Majeure" of the "GENERAL TERMS AND CONDITIONS" of this Tariff, in

accordance with Section 19, "Limitation of WTG Hugoton's Obligation to Provide

Firm Service" of the "GENERAL TERMS AND CONDITIONS," or (c) or as a result of

any operational consideration reasonably determined by WTG Hugoton.

2.2 Service by WTG Hugoton hereunder is conditioned upon the availability of

capacity sufficient to provide the service hereunder without detriment or

disadvantage to WTG Hugoton's present and future firm customers and shippers

and shall be subject to the operating and system requirements of WTG Hugoton

as reasonably determined by WTG Hugoton.