El Paso Natural Gas Company

Second Revised Volume No. 1A

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Effective Date: 04/01/2010, Docket: RP10-454-001, Status: Effective

Original Sheet No. 319 Original Sheet No. 319

TRANSPORTATION GENERAL TERMS AND CONDITIONS

(Continued)

13. FUEL AND L&U (Continued)

13.6(a) (Continued)

Mainline Fuel Requirement + Mainline Fuel Requirement

Adjustment + WRf (only used in mainline Fuel calculation)

Fuel charge = --------------------------------------------------------

Projected mainline receipt quantities related to the

anticipated transportation service for mainline

transportation

(i) The Mainline Fuel Requirement shall be the quantity of

gas used by Transporter during the applicable data

collection period that is required to support Mainline

Transportation under all applicable Rate Schedules during

the upcoming period. Transportation service involving

transactions that do not involve the assessment of Fuel,

as well as transactions charged based on actual Fuel

used, will be adjusted to reflect the actual quantities

collected.

(ii) The Mainline Fuel Requirement Adjustment shall be the

quantity of gas which is the difference between: (i) the

actual quantities of mainline Fuel experienced by

Transporter during the applicable data collection period

and (ii) the quantities of mainline gas retained for Fuel

by Transporter during that period.

(iii) The Mainline Receipt Quantities shall be the quantity of

gas moved during the applicable data collection period

that is required to support mainline transportation

service under all applicable Rate Schedules during the

upcoming period.