Northern Natural Gas allowed a System Overrun Limitation for all zones to expire Saturday.

In something of an easy come, easy go situation, Tennessee lifted Friday an Imbalance Warning in Zones 5 and 6 that had been implemented a day earlier. This follows Tuesday’s cancellation of an Imbalance Warning in those zones that had begun on the previous Saturday.

Southern reported identifying an issue with the Main Pass 289-290 meter station operated by Shell. Southern declared a force majeure and said no gas will be scheduled at this point until further notice.

Gulfstream sent shippers an Operations Advisory Friday saying its linepack was at the high end of acceptable operating levels and it was unable to absorb “a significant quantity” of underdeliveries of gas in its Florida market area.

MRT said it would cancel Sunday (Jan. 22) a cold weather System Protection Warning for northbound transportation.

Westcoast ended a systemwide low-linepack OFO to prevent customer drafting Thursday, then said Friday linepack was beginning to increase to undesirably high levels.

NOVA restored its imbalance tolerance range to -4/+4 Thursday after changing it to -2/+4 on the previous Monday.

Due to an issue with Unit #1 at Frametown Compressor Station in Braxton County, WV, Columbia Gas said it would restrict nonfirm service to zero on the Seneca, Seneca West, Artemas and Artemas West segments effective Saturday for an undetermined period of time.

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