Limitation

Transportation Notes

Because of a warming trend expected to begin in its market area today, Northern Natural Gas issued a System Underrun Limitation notice for all market area zones (ABC, D and E/F) to take effect Thanksgiving Day. The OFO is aimed at averting excessive receipts and a corresponding shortfall in deliveries.

November 21, 2001

Transportation Notes

Northern Natural Gas did not extend a System Overrun Limitation notice for all market area zones beyond Thursday.

October 26, 2001

Transportation Notes

Due to wintry weather moving in, Northern Natural Gas declared a System Overrun Limitation today for all market area zones (ABC, D and E/F).

October 25, 2001

Transportation Notes

Northern Natural Gas declared a System Underrun Limitation, effective Sunday and Monday, for all market area zones.

May 29, 2001

Transportation Notes

A System Overrun Limitation is in effect today for all NorthernNatural Gas market area zones.

February 27, 2001

Transportation Notes

Pacific Gas & Electric did not extend a customer-specificOFO beyond Wednesday.

February 22, 2001

Transportation Notes

Northern Natural Gas continued a System Overrun Limitation forall market areas that had begun Tuesday through at least today.

February 21, 2001

Transportation Note

Northern Natural reported a critical system overrun limitationfor all of its market area zones for today’s flow. DDVC penaltiesare applicable to the bumped shipper’s quantity.

February 16, 2001

Transportation Notes

Northern Natural Gas declared a System Overrun LimitationThursday for all market area zones.

February 9, 2001

Transportation Notes

Pacific Gas & Electric did not extend a systemwidelow-inventory OFO beyond Thursday. However, Northern Natural Gaskept a System Overrun Limitation for all market area zones in placeat least through Thursday.

February 2, 2001