Oktex Pipeline Company

Original Volume No. 1

Effective Date: 06/01/1997, Docket: RP97-103-003, Status: Effective

Second Revised Sheet No. 20 Second Revised Sheet No. 20 : Effective

Superseding: FIRST REVISED SHEET NO. 20

12. Cubic Foot. The term "cubic foot" shall mean the volume of dry gas which occupies one cubic foot

when such gas is at a temperature of sixty degrees Fahrenheit and at a pressure of 14.73 pounds per square

inch absolute.

13. Mcf. The term "Mcf" shall mean 1,000 cubic feet of gas.

14. British thermal unit or Btu. The definition of one BTU is the quantity of heat that must be added to

one pound (avoirdupois) of pure water to raise its temperature from 58.5 degrees Fahrenheit to 59.5 degrees

Fahrenheit under standard pressure conditions.

15. Dekatherm. One Dekatherm shall mean 1,000,000 Btu's.

16. psig. The term "psig" shall mean pounds per square inch gauge.

17. Total heating value. The Number of BTUs produced by combustion at constant pressure of the amount of

gas that will occupy a volume of one cubic foot at 60 degrees Fahrenheit at the reference base pressure with

air at the same temperature and pressure as the gas, when the products of combustion are cooled to the

initial temperature of the gas and air, and when the water formed by combustion is condensed to the liquid

state.

18. Thermally Equivalent Quantity. "Thermally equivalent quantity" shall mean an equal number of

Dekatherms of Gas.

19. Quantity or Quantities. "Quantity" or "Quantities" shall mean a unit or units of measurement in or

Mcfs, as the case may be Dekatherms.

20. Pro Rata Share. "Pro Rata Share" shall mean the ratio that the Quantity of Gas scheduled to be

received by Transporter, from or for the account of Shipper, bears to the total Quantity of Gas scheduled to

be received by Transporter from all Shippers for transportation in the System during any given time period

(day, month, year).

21. Gas. The term "gas" shall mean natural gas of the quality specified in Article IV of the General

Terms and Conditions.

22. Transportation. The term "transportation" shall mean the transmission of gas, whether by exchange,

backhaul or any other actual or constructive method or movement.

23. Shipper. The term "Shipper" shall mean the person that has executed a Firm or Interruptible

Transportation Service Agreement with Transporter for transportation service hereunder or, as the context may

require, any person requesting service hereunder.

24. Operator. "Operator" shall mean the entity or entities, other than Transporter, designated by

Transporter to operate the System.

25. Party. "Party" shall mean Shipper or Transporter and the term "Parties" shall mean Shipper(s) and

Transporter.

26. Person. "Person" shall mean an individual, a corporation, voluntary association, joint stock

company, business trust, partnership or other entity.

27. System. "System" shall mean the pipeline and all related facilities located in the United States and

owned by Transporter at the time, including but not limited to the compressors, regulators, meters and

support facilities in the United States.