Northern Natural Gas Company

Fifth Revised Volume No. 1

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Effective Date: 06/01/2008, Docket: RP08-307-000, Status: Effective

Sixth Revised Sheet No. 135B Sixth Revised Sheet No. 135B : Pending

Superseding: Fifth Revised Sheet No. 135B

RATE SCHEDULE FDD

Firm Deferred Delivery Service

(Dth)

 

 

II. 4-Step Withdrawal Option

 

 

Account Balance Parameters:

 

* Each Shipper's minimum and maximum quantities are determined based on each Shipper's respective FSQ

as a percent of the total FDD annual cycle quantity offered.

 

 

Injection Period Withdrawal Period

---------------- -----------------

Total of all Shippers' Account Balances may Total of all Shippers' Account Balances may not be

not be greater than 39,434,500 on August 31.* less than 23,720,000 on January 31.*

 

Total of all Shippers' Account Balances may not be

greater than 14,825,000 on March 1.*

 

 

 

 

Daily Maximum FDQ:

-----------------

 

Injection Period Withdrawal Period

--------------------------------------------- ----------------------------------------------

 

Daily Maximum Daily Maximum Daily Maximum Daily Maximum

Injection Withdrawal Withdrawal Injection

Period FDQ FDQ Period FDQ FDQ

-------- -------------- ------------- ------ -------------- -------------

June 468,158* 261,810* November 1,028,529* 238,247*

July 553,278* 261,810* December 1,028,529* 238,247*

August 617,117* 327,263* January 1,028,529* 238,247*

September 652,584* 392,715* February 794,450* 238,247*

October 652,584* 392,715* March 539,091* 238,247*

April 319,199* 119,124*

May Overrun Overrun

(Interruptible) (Interruptible)