Petal Gas Storage Company

Original Volume No. 1

Effective Date: 10/01/2002, Docket: RP02-435-000, Status: Pending

Fourth Revised Sheet No. 103 Fourth Revised Sheet No. 103 : Pending

Superseding: Third Revised Sheet No. 103

GENERAL TERMS AND CONDITIONS (Continued)

2.14 FERC or Commission shall mean the Federal Energy Regulatory Commission

or any successor agency.

2.15 The term gas means natural gas in its natural state, produced from

wells, including casinghead gas produced with crude oil, natural gas

from gas wells and residue gas resulting from processing both casinghead

gas and gas well gas.

2.16 NAESB means the North American Energy Standards Board.

2.17 NAESB Standards shall mean those business and electronic communication

standards promulgated by NAESB and adopted, to the extent codified, by

the FERC in Section 284.10(b) or elsewhere in its regulations.

2.18 Heating Value shall mean the number of British thermal units produced by

complete combustion at constant pressure of the amount of gas that would

occupy a volume of one (1) cubic foot at a temperature of sixty degrees

Fahrenheit (60°F), and under a pressure equivalent to that of thirty

inches of mercury (30" Hg) at thirty-two degrees Fahrenheit (32°F), 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.