Northwest Pipeline Corporation G P

Fourth Revised Volume No. 1

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Effective Date: 01/31/2008, Docket: RP08-130-000, Status: Effective

Original Sheet No. 355 Original Sheet No. 355 : Effective

FORM OF RATE SCHEDULE TF-2 SERVICE AGREEMENT

(Continued)

[Temporary Capacity Release Replacement Contract Version]

EXHIBIT A (Continued)

6. Transportation Rates:

[Use the version of "Reservation Charge" in "a." which applies.]

a. Awarded Reservation Charge (per Dth of Monthly Billing Quantity):

[Maximum Base Tariff Rate]

(or)

[$_____]

(or)

[_____% of Maximum Base Tariff Rate]

(or)

a. Awarded Volumetric Bid Reservation Charge (per Dth):

[Maximum Base Tariff Rate]

(or)

[$_____]

(or)

[_____% of Maximum Base Tariff Rate]

(or)

[[Maximum Base Tariff Rate,] (or) [$_____,] and an amount

pursuant to Section 3.4(c) of Rate Schedule TF-2 using a

minimum average load factor volumetric commitment of ____%]

b. Volumetric Charge (per Dth): [Maximum Base Tariff Rate]

(or)

[$_____]

c. Volumetric Charge Rate Discount Conditions Consistent with Section

3.3 of Rate Schedule TF-2: [Not Applicable] (or) [(Description)]

7. Transportation Term: Begin Date: _________________

Nomination Cycle: _________________

End Date: ___________________

8. Regulatory Authorization: [18 CFR 284.223]

(or)

[18 CFR 284.102, on behalf of ___________]