Northern Natural Gas Company

Fifth Revised Volume No. 1

Effective Date: 02/21/2009, Docket: RP09-232-000, Status: Effective

Sixth Revised Sheet No. 401 Sixth Revised Sheet No. 401

Superseding: Substitute Fifth Revised Sheet No. 401

(Placement on page, number of pages, format, capitalization and font may vary)

Contract No.:_________________

Request No.:__________________

Amendment No.:________________ [if applicable]

Appendix A

Firm Throughput Service Agreement

TF Rate Schedule

Shipper:________________________________

Term:___________through_________________

Contract Volumes (Dth):

________________________________________________________________________________________________

[Volume]

FIELD _________ [Month From] __________ [Month To] __________

_________ [Month From] __________ [Month To] __________

MARKET _________ [Month From] __________ [Month To] __________

________________________________________________________________________________________________

Maximum Daily Quantities (Dth):

______________________________

Volume Type From Volume

TFF __________ __________

TF5 __________ __________

TF12B __________ __________

TF12V __________ __________

RECEIPT AND DELIVERY POINT DESCRIPTIONS AND VOLUMES (DTH) [may be organized by Area]

Jan Feb Dec

R/D POI #/MIDS Point Description [Volume] [Volume] [Volume]

______ _____ _________________ _______ _______ ....... _______

R _____ _________________ _______ _______ ....... _______

_______ _______ ....... _______

Total Receipts

D _____ _________________ _______ _______ ....... _______

_______ _______ ....... _______

Total Deliveries

Page ____ of _____