Northern Natural Gas Company

Fifth Revised Volume No. 1

Effective Date: 12/31/9999, Docket: RP07-330-000, Status: Accepted

Second Revised Sheet No. 452 Second Revised Sheet No. 452 : Pending

Superseding: First Revised Sheet No. 452

SYSTEM MANAGEMENT SERVICE AGREEMENT

This System Management Service Agreement ("Agreement") by and between

Northern Natural Gas Company ("Northern") and _______________,

____________________________________ ("Shipper"), covering daily

variances between volumes scheduled at delivery points and volumes actually

taken at the delivery points under the Throughput Service Agreement listed on Appendix "A,"

which is attached hereto and incorporated by reference ("Corresponding Throughput Service

Agreement"), entered into in accordance with the following terms and conditions:

CONTRACT NO.:___________

SMS CONTRACT QUANTITY (SMSQ): _______ DTH/day

TERM: This Agreement shall become effective on _____________________

and shall have a term ending on______________________.

RATE: Shipper shall pay Northern each month for System Management Service rendered

hereunder at the maximum rates or charges in effect from time to

time under Rate Schedule SMS, or any effective superseding Rate

Schedule on file with the Commission.