El Paso Natural Gas Company

Second Revised Volume No. 1A

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

Original Sheet No. 318 Original Sheet No. 318

TRANSPORTATION GENERAL TERMS AND CONDITIONS

(Continued)

13. FUEL AND L&U (Continued)

13.4 (Continued)

(f) Short-term no-fuel route designations will be posted on

Transporter's EBB. Shipper may request Transporter to conduct

a fuel-use review of any route. Any changes to a short-term

no-fuel path will be posted to the EBB at least three business

days prior to the beginning of the month. Short-term no-fuel

designations will be identified and described in Transporter's

annual fuel tracker filings.

13.5 Interruptible Storage Service Fuel

(a) Fuel charges related to Interruptible Storage Service, Rate

Schedule ISS Fuel ("ISS Fuel"), shall be calculated using the

share of Washington Ranch compression and dehydration fuel

related to storing the interruptible quantities for Shippers

under this service and will be deducted from the calculation of

total mainline Fuel.

(b) ISS Fuel will only be charged on injection quantities for this

service.

the applicable transportation Fuel and the L&U percentages for

transportation service to Washington Ranch. When ISS gas is

withdrawn from Washington Ranch and introduced into the

transmission system, it will be recognized as a separate

transaction and will be assessed the applicable transportation

Fuel and L&U percentages.

13.6 Derivation of Fuel and L&U Percentages

(a) The Mainline Fuel Percentage shall be equal to the sum of the

Mainline Fuel Requirement, the Mainline Fuel Requirement

Adjustment and the share of Washington Ranch compression and

dehydration fuel ("WRf") related to the provision of system

flexibility for transmission service (numerator) divided by the

projected mainline receipt quantities related to the

anticipated transportation service for Mainline Transportation

during the upcoming period (denominator).