Mobile Bay Pipeline Company

Second Revised Volume No. 1

Effective Date: 02/01/1994, Docket: GT94- 18-000, Status: Effective

Original Sheet No. 90 Original Sheet No. 90 : Effective

GENERAL TERMS AND CONDITIONS

(Continued)

or revisions as may be acceptable to Transporter, and shall meet

generally accepted industry standards and practices. Heating

value shall be determined to the nearest whole Btu.

In the event the Btu value of the gas delivered at any delivery

point is not determined by any one of the methods described

above, the Btu content of the gas delivered during a month shall

be assumed to be the same as the weighted average of the Btu

content of the gas along the same pipeline segment determined by

any of the methods described above during such period.

3.8 Determination of Flowing Temperature - When orifice meters are

used in conjunction with the use of charts, the temperature of

the gas flowing through the meter or meters shall be determined

by the continuous use of a recording thermometer installed so

that it will properly record the temperature of the gas flowing

through the meter or meters. The average of the temperature

recorded during a period shall be used in computing the volumes

of gas for that period. Temperature shall be determined to the

nearest whole degree in Fahrenheit.

When positive or turbine meters are used, the flowing temperature

of the gas shall be assumed to be sixty (60) degrees Fahrenheit

and no correction shall be made for any variation therefrom;

provided, however, Transporter shall have the option of

installing or causing to be installed a recording thermometer,

and if Transporter exercises such option, correction shall be

made for each degree variation in the average flowing temperature

for each meter recording.

3.9 Determination of Specific Gravity - The specific gravity

(relative density) of the gas flowing through the meter or meters

shall be determined by a chromatograph, continuous sampler, spot

sample, or gravitometer, which method shall be selected by

Transporter, and shall meet generally accepted industry standards

and practices. The arithmetical average of specific gravity