Panther Interstate Pipeline Energy, L.L.C.

Original Volume No. 1

Effective Date: 02/01/2004, Docket: CP03-338-001, Status: Effective

Original Sheet No. 19 Original Sheet No. 19 : Effective

2. QUALITY

Shipper is obligated to deliver to Transporter gas meeting the quality

specifications set forth in NGPL's effective FERC tariff; provided,

however, that Transporter shall accept gas containing a saturation level

in excess of that permitted by NGPL's tariff where Shipper and

Transporter have entered into a separate agreement for downstream

dehydration service.

3. MEASUREMENT

3.1 Unit of Measurement: The transportation unit of gas received and

delivered by Transporter shall be a dekatherm, unless otherwise

indicated in this tariff.

3.2 Determination of Volume and Total Heating Value: The volume and

the total heating value of gas received and delivered by

Transporter shall be determined as follows, provided that

Transporter shall have the right, at any time, to rely on the

measurements and statements for quantities and heating values of

gas actually provided to Transporter by any relevant

interconnecting entity.

(a) The unit of volume, for the purpose of measurement, shall be

one (1) cubic foot of gas at a temperature of sixty (60)

degrees Fahrenheit, and at a pressure of thirty-three

hundredths (.33) pounds per square inch above an assumed

atmospheric pressure of fourteen and four tenths (14.4)

pounds per square inch (fourteen and seventy-three

hundredths (14.73) pounds per square inch absolute pressure)

and dry. For gas volumes reported in cubic meters, the

standard conditions are 101.325 kPa, 15 degrees C, and dry.

(b) The total heating value of the gas per cubic foot shall be

determined at the receipt point on the basis of periodic

samplings to be examined at a qualified laboratory, and at

the delivery point by a recording chromatograph to be

located at the point of interconnection between the

facilities of Transporter and Shipper.

Mcf delivered by the ratio of the total heating value of the

gas delivered to 1,000. For purposes of this determination

the specific gravity and heating value shall be determined

at approximately the same time.