Due to limited operational flexibility and in order to maintain linepack, Tennessee issued a systemwide Balancing Alert OFO Thursday. The OFO requires that all shippers under LMSMA, LMSPL and LMSPA contracts (including SA contracts acting as balancing parties) maintain an actual daily flow rate not exceeding 2% or 500 Dth, whichever is greater, of scheduled quantities. Penalties are $15/Dth plus the applicable Regional Daily Spot Price for underdeliveries by receipt point operators and overtakes by delivery point operators that exceed this tolerance. As a result of Tennessee’s OFO, East Tennessee Natural Gas issued its own Balancing Alert OFO; see the bulletin board for details.

Due to low linepack and below-freezing temperatures being forecasted in Florida Thursday night, Florida Gas Transmission extended an Overage Alert Day for market-area customers through at least Thursday but tightened the tolerance for negative daily imbalances from 20% to 10%. The pipeline said it would not interrupt previously scheduled market-area ITS-1 service for Thursday’s gas day below the elapsed prorated scheduled quantity.

In preparation for upcoming drilling work as part of the Jackson Prairie Deliverability Expansion project, Northwest said that as of Thursday it is no longer accepting injection requests for interruptible storage or Park capacity at Jackson Prairie until further notice. Shippers that currently have interruptible or Park gas in Jackson Prairie can continue to store their gas, Northwest said, but it may have to provide notice of withdrawal if it is determined that the project needs the storage levels reduced in order to reduce pressure in the facility to start the drilling work. If this becomes necessary, Northwest will provide seven days notice to shippers with interruptible storage and three days notice to shippers with Park storage to withdraw their gas.

Northwest also raised the level used to calculate shippers’ OFO obligations from 675,000 Dth/d to 685,000 Dth/d Thursday because its operational capacity through the Kemmerer Compressor Station continues to exceed design capacity and the pipeline “has an adequate storage position north of Kemmerer.” Northwest said it will continue to use this revised level to calculate OFO obligations as long as its storage position north of Kemmerer exceeds 1.2 Bcf. Effective Thursday Northwest lifted its Declared Entitlement for all receiving parties north of the Plymouth Compressor Station, including the Grant Pass, Wenatchee and Spokane laterals.

Southern Natural Gas kept an OFO Type 6 in effect through Friday but said it was unlikely to issue the OFO for either long or short imbalances Saturday. Southern also said that due to high storage withdrawal requirements and peak demand, it reduced interruptible withdrawals to “protected quantities” Thursday until further notice.

Gulf South will begin three and a half days of scheduled maintenance on Unit #3 at Hall Summit Compressor Station at 6 p.m. CST Sunday. Capacity through the station could be reduced by as much as 100,000 Dth/d during this week, Gulf South said.

Questar will allow ISS nominations at its Clay Basin storage nominations starting Friday. Questar also reported being informed by area liquid handling companies that they will be unable to remove product from Questar’s Greasewood tank battery/slug catcher facility. As a result, Questar implemented a 60-degree hydrocarbon dew point limit for Zone 6 Thursday. The pipeline said it is working with liquid handling companies to return to normal service as quickly as possible. A spokesman explained that the pipeline is having difficulty getting trucks to the facility to haul away the liquids.

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