Reflecting heavy weather load in the Upper Plains and Upper Midwest, Northern Natural Gas declared a System Overrun Limitation for all market-area zones effective Thursday until further notice.
Overrun
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Transportation Notes
Northwest warned shippers that based on available data, it may need to invoke a Declared Overrun Entitlement Period as early as Tuesday. The entitlement would apply to delivery points north of Kemmerer (WY) Compressor Station, which is considered a longtime bottleneck on the pipeline’s system. Northwest explained Thursday that over the past few months it has allowed shippers to draft the system on a limited basis to work off their Receiving Party imbalances. But during the past week the drafting has been excessive, it continued, and as documented in daily bulletin board reports, Northwest’s balance at the Jackson Prairie storage facility “is rapidly decreasing.” Also, maintenance scheduled for Tuesday and Friday of this week and on Sept. 4 (see Daily GPI, Aug. 23) will require that Northwest rely on storage to balance the system. The storage activities on the maintenance days likely will involve withdrawals from Jackson Prairie and injections into Questar’s Clay Basin facility. Northwest’s storage account must be full on Sept. 30, as required by the Jackson Prairie partnership agreement.
Transportation Notes
Northern Natural Gas had a System Overrun Limitation notice in effect Saturday and Sunday but lifted it Monday.
Transportation Notes
Northern Natural Gas declared a System Overrun Limitation for all market-area zones Saturday.
Transportation Notes
Northern Natural Gas issued a System Overrun Limitation notice (similar to a low-linepack OFO) for all market-area zones Monday.
Transportation Notes
Northern Natural Gas ended a System Overrun Limitation notice Tuesday after it had been in effect for two days.
Transportation Notes
Northern Natural Gas ended a System Overrun Limitation notice for all market-area zones Saturday after it had been in effect for four days.
Transportation Notes
Northern Natural Gas declared a System Overrun Limitation notice for all market-area zones (ABC, D and E/F) today.
Transportation Notes
Northern Natural Gas did not extend a System Overrun Limitation notice for all market area zones beyond Thursday.
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).