Saying it continues to experience high due-shipper imbalances, East Tennessee Natural Gas (ETNG) issued a customer-specific Action Alert OFO that will take effect Thursday. Depending on operating conditions, ETNG said it may be required to expand the customer-specific OFO to a systemwide one. “This OFO does not affect the ability of ETNG to receive or deliver quantities of gas for scheduled nominations to any customer, storage field or pipeline,” ETNG said. “During the effectiveness of this OFO, the notified balancing parties must be balanced such that actual deliveries of gas out of the system must be greater than or equal to scheduled deliveries out of the system.”

Northern Natural Gas noted a colder-than-normal forecast for its market area in the next few days, in conjunction with the upcoming holiday, is expected to produce significantly varying operational conditions. As a result, starting Wednesday Northern will need more capacity through the Oakland Allocation Groups for operational purposes than had previously been used in November. The pipeline said it has been using LNG volumes recently to help support market-area loads but needs to conserve LNG inventories for the rest of the winter. It plans to allocate interruptible and alternate firm transportation service through Oakland if customers continue to schedule high volumes from Northern’s demarcation point into the market area.

In a request to customers to avoid any banking or drafting of gas on its system through the Thanksgiving weekend, Northwest said its storage flexibility to accommodate on-system balancing or banking of gas north of the Kemmerer (WY) Compressor Station “is very limited.” As of late last week the pipeline’s Jackson Prairie storage inventory is 96% of its capacity. “Therefore, it is critical that customers stay on rate through the Thanksgiving weekend,” Northwest said. “Banked gas will be stored in [Questar‘s] Clay Basin [facility] and customers may have to wait until there is space through Kemmerer before getting approval to receive payback. Conversely, Northwest does not want customers to draft the system in order to preserve Northwest’s balancing gas at Jackson Prairie to offset potential OFOs through Kemmerer.”

Panhandle Eastern cited ongoing maintenance in notifying shippers that no parking will be allowed using the Autopark service Wednesday. The Autounpark service will be available that day, Panhandle said.

Gulf South will begin six days of scheduled maintenance Monday on all units of the Carthage #2 Compressor Station. Capacity through the station could be reduced by as much as 50,000 Dth/d during this work, the pipeline said.

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