El Paso Natural Gas Company

First Revised Volume No. 1-A

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Effective Date: 05/01/1990, Docket: GT90- 26-000, Status: Effective

Original Sheet No. 201 Original Sheet No. 201 : Superseded






l.l Day - A period of twenty-four (24) consecutive hours

commencing at seven (7:00) a.m., Mountain Standard Time, or

such other period as the parties may agree upon.


l.2 Month - A period commencing on the first day of the

corresponding calendar month and ending on the first day of

the next following calendar month.


l.3 Year - A period of three hundred sixty-five (365) consecutive

days commencing on the date to be specified in the executed

Transportation Service Agreement; provided, however, that any

such year which contains the date of February 29 shall consist

of three hundred sixty-six (366) consecutive days.


l.4 British Thermal Unit ("Btu") - One (l) Btu shall mean one

British thermal unit and is defined as the amount of heat

required to raise the temperature of one (l) pound of water

from fifty-nine degrees Fahrenheit (59~F) to sixty degrees

Fahrenheit (60~F) at a constant pressure of fourteen and

seventy-three hundredths pounds per square inch absolute

(l4.73 psia). Total Btu's shall be determined by multiplying

the total volume of natural gas delivered times the gas

heating value expressed in Btu's per cubic foot of gas

adjusted on a dry basis.


1.5 Dekatherm ("dth") - One (1) dth shall mean a quantity of gas

containing one million (1,000,000) Btu's.


l.6 Heating Value - The quantity of heat, measured in Btu,

produced by combustion in air of one (l) cubic foot of

anhydrous gas at a temperature of sixty degrees Fahrenheit

(60~F) and a constant pressure of fourteen and seventy-three

hundredths pounds per square inch absolute (l4.73 psia), the

air being at the same temperature and pressure as the gas,

after the products of combustion are cooled to the initial

temperature of the gas and air, and after condensation of the

water formed by combustion.


1.7 Operator - The person or entity that controls the flow of gas

into El Paso's system.


l.8 Natural Gas - Any mixture of hydrocarbons or of hydrocarbons

and noncombustible gases, in a gaseous state, consisting

essentially of methane.