Trans-Union Interstate Pipeline, L.P.

Original Volume No. 1

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Effective Date: 02/07/2006, Docket: RP06-217-000, Status: Effective

Original Sheet No. 104 Original Sheet No. 104 : Effective

1.17 "Gross Heating Value" means the quantity of heat

expressed in Btus

produced by the complete combustion at constant pressure of one

anhydrous

(dry) cubic foot of Gas with air at a temperature of sixty

degrees (60?)

Fahrenheit and at a pressure of 14.73 psia, when the products of

the

combustion are cooled to the initial temperature of the Gas and

air and the

water formed by combustion is condensed to the liquid state.

1.18 "Interruptible Transportation Agreement" means an

agreement pursuant to

which Transporter is obligated to provide interruptible

transportation service

to a Shipper.

1.19 "Intra-day Nomination" is a nomination submitted after

the nomination

deadline whose effective time is no earlier than the beginning of

the gas Day

and runs through the end of that gas Day.

1.20 "Maximum Daily Quantity" is the maximum daily quantity

of Gas

Transporter will receive or deliver at each Receipt or Delivery

Point in

accordance with the terms of an effective service agreement.

1.21 "Maximum Daily Transportation Quantity" is the maximum

quantity of Gas

Transporter is obligated to receive for the account of Shipper,

as stated in

an effective Interruptible Transportation Agreement between

Shipper and

Transporter.

1.22 "Mcf" means one thousand (1,000) Cubic Feet.

1.23 "MMBtu" is the abbreviation employed to denote one

million (1,000,000)

Btu and shall be synonymous and interchangeable with the term

"dekatherm"

(Dth) and shall be the standard unit for purposes of nominations,

scheduling,

invoicing, and balancing. Allocated quantities and imbalances

shall be

expressed in the same units as nominated quantities.

1.24 "MMcf" means one million (1,000,000) Cubic Feet.

1.25 "Month" means the period from 9:00 am CCT on the first

Day of the

calendar month and ending at 9:00 am CCT on the first Day of the

next

succeeding calendar month.

1.26 "NAESB" means the North American Energy Standards

Board.

1.27 "NAESB Standards" means any and all such standards

issued by NAESB and

adopted by the Commission.

1.28 "Negotiated Rate" means a rate or rate formula for

computing a rate for

service under a single rate schedule under which, for some

portion of the

contract term, one or more of the individual rate components may

exceed the

maximum charge, or be less than the minimum charge, for such

component of the

applicable tariff rate as set forth on Transporter's Statement of

Rates and

Charges. A Negotiated Rate must be mutually agreed upon by

Transporter and

Shipper, and may be based on a rate design other than straight

fixed variable.