Limitation

Citing forecasts of subzero minimum temperatures, Northern Natural Gas declared a System Overrun Limitation day notice for Thursday in all market-area zones (ABC, D and E/F).

Northern Natural Gas did not extend a System Overrun Limitation day for market-area Zone E/F beyond Tuesday, but it declared a new SOL for Wednesday in the Zone A/B/C area due to forecasted minimum temperatures of below zero.

Due to colder than normal temperatures in market-area Zone E/F, Northern Natural Gas called a System Overrun Limitation day for the zone Tuesday.

Effective with Timely Cycle nominations Thursday, Dominion will cancel a limitation of secondary or interruptible capacity at Niagara Mohawk East Gate.

Due to below-zero minimum temperatures spreading to all of its market area zones, Northern Natural Gas is applying a System Overrun Limitation day notice that previously had been confined to Zone E/F to all three zones (ABC, D and E/F) Wednesday.

Due to below zero minimum temperatures in its Zone E/F service area, Northern Natural Gas declared a System Overrun Limitation day for Saturday in that zone.

Citing forecasts of higher than expected system temperatures, Northern Natural Gas said a System Underrun Limitation will be in effect for all market-area zones Saturday.

Northern Natural Gas kept a System Overrun Limitation in place Saturday and Sunday, then lifted it Monday. NNG said early Monday afternoon that a mechanical problem caused a force majeure situation at the Chatfield (MN) Compressor Station. Based on weather forecasts, there was potential for some level of curtailment on the LaCrosse/Tomah branchline as a result, NNG said. Preliminary indications are that the force majeure could last for up to a week, it added. See the bulletin board for a list of affected points on the LaCrosse/Tomah branchline.

An on-again, off-again System Overrun Limitation notice by Northern Natural Gas was on for Saturday. The new SOL affecting all market-area zones was declared after the pipeline had one in effect Thursday but lifted it Friday.