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. 20 Original Sheet No. 20 : Effective

(d) The temperature of the gas passing through the meters shall

be determined by a temperature transducer, another type of

electronic temperature recording device, a recording

thermometer, or any other method mutually agreed upon, so

installed that it may properly record the temperature of the

gas flowing through the meters.

(e) The deviation of the natural gas from Boyle's Law shall be

determined by American Gas Association Par Research Project

NX-19 or any superseding applicable publications by the

American Gas Association.

(f) The closing of measurement shall be the later of the fifth

(5th) Business Day after the close of the month or the third

Business Day after receiving a statement from the relevant

interconnecting entity stating the quantities delivered to

Transporter.

4. MEASUREMENT EQUIPMENT

4.1 Measuring Facilities: Unless Transporter agrees otherwise, all

necessary measuring facilities shall be installed, owned,

maintained and operated by Transporter or Transporter's designee

at or near the applicable receipt point(s) and delivery point(s).

Unless otherwise mutually agreed upon, and consistent with the

provisions of the applicable Rate Schedule and Section 22 of these

General Terms and Conditions, Shipper shall reimburse Transporter

or Transporter's designee for any costs incurred to install,

maintain, and operate measuring facilities.

(a) Orifice Meters: Orifice meters, if used, shall be

installed, and gas quantities computed, in accord with

American National Standard Bulletin ANSI/API 2530, AGA

Report No. 3, Orifice Metering of Natural Gas, dated May 16,

1985, and any modifications and amendments thereof, and

shall include the use of flange connections and

straightening vanes.

(b) Diaphragm, Rotary or Turbine Meters: Diaphragm or Rotary

meters, if used, shall be installed and gas quantities

computed, in accordance with generally accepted industry

practices. Turbine meters shall be installed in accordance

with AGA Report No. 7 (latest edition) with quantities

computed in accordance with generally accepted Industry

practices.