Sabine Pipe Line Company

Second Revised Volume No. 1

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Effective Date: 07/31/1993, Docket: RS92- 78-003, Status: Effective

Original Sheet No. 204 Original Sheet No. 204 : Superseded

1.11 Heating Value

The number of British thermal units produced by

complete combustion at constant pressure of the amount

of gas which would occupy a volume of one (1) cubic

foot at a temperature of sixty degrees Fahrenheit

(60øF), and under a pressure equivalent to that of

thirty inches of mercury (30" Hg) at thirty-two degrees

Fahrenheit (32øF), and under gravitational force

acceleration (980.665 cm. per sec. per sec.), with air

of the same temperature and pressure as the gas, when

the products of combustion are cooled to the initial

temperature of the gas and air, when the water formed

by combustion is condensed to the liquid state, and

corrected for any water vapor in excess of seven pounds

per million cubic feet of gas (7 lbs/MMcf). Heating

value determined by calculation from composition

analysis according to GPA Publication 2172-84, as

amended or revised, shall be converted to figures that

reflect the actual condition of the gas on receipt or

delivery and adjusted for temperature, pressure, water

content or compressibility.

1.12 Maximum Daily Reservation Quantity

The maximum quantity of gas which Sabine is obligated

to receive and deliver for the account of Shipper as

specified in Exhibit B of an executed Firm Service

Agreement between Shipper and Sabine.

1.13 Maximum Daily Transportation Quantity

The maximum quantity of gas which Sabine is obligated

to receive and deliver for the account of Shipper as

specified in Exhibit B of an executed Interruptible

Service Agreement between Shipper and Sabine.

1.14 Month

The period beginning on the first day of a calendar

month and ending on the first day of the succeeding

calendar month.

1.15 Operational Balancing Agreement (OBA)

An agreement between Sabine and an Upstream Operator at

Receipt Point(s) or Downstream Operator at Delivery

Point(s) whereby the variance of actual measured gas at

a particular Receipt or Delivery Point greater or less

than confirmed nominations is resolved between Sabine