Underrun

Transportation Notes

Northern Natural Gas issued a System Underrun Limitation notice for Saturday and Sunday, affecting all market-area zones (ABC, D and E/F).

April 24, 2003

Transportation Notes

Northern Natural Gas did not extend a System Underrun Limitation notice for its market-area zones beyond Wednesday.

December 20, 2001

Transportation Notes

To guard against excessive linepack, Northern Natural Gas declared a System Underrun Limitation notice for all market-area zones, effective today and Wednesday.

December 18, 2001

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

May 29, 2001

Transportation Notes

Northern Natural Gas extended a System Underrun Limitationcaused by high linepack at least through Saturday’s gas day. TheSUL began Friday (see Daily GPI, Nov. 11).

November 15, 1999

Transportation Notes

Fearing excessive linepack over the weekend, Northern NaturalGas implemented a System Underrun Limitation in all market-areazones for the gas days of Saturday and Sunday. The SUL will endtoday.

September 27, 1999

Transportation Notes

Northern Natural Gas said it lifted a System Underrun Limitationthat had been posted for Tuesday and today.

July 7, 1999

Transportation Notes

Northern Natural Gas extended a System Underrun Limitation orderfor all market-area zones through Monday. The SUL was initiatedTuesday to guard against excessive linepack (see Daily GPI, June 30).

July 2, 1999

Transportation Notes

Northern Natural Gas had a System Underrun Limitation in effectTuesday for all market-area zones to guard against excessivelinepack.

June 30, 1999