From the Tennessee Gas Pipeline company on Thursday (our emphasis):
Tennessee Gas Pipeline Company – Notice Text
DATE: AUGUST 13, 2009 9:00 AM CCT TO: ALL TENNESSEE CUSTOMERS
RE: IMBALANCE WARNING
Tennessee requests that customers match physical flow with scheduled quantities to prevent imbalances from occurring that would threaten Tennessee’s operational integrity. With mild weather patterns continuing across much of the system and limited storage flexibility, Tennessee does not have the ability to absorb imbalances caused by over-deliveries by receipt point operators into the system and under-takes from the system by delivery point operators. We appreciate your compliance with this notice. Please contact your Volume Analyst if you have any questions. Layne Sanders Manager, Transportation Services Gas Scheduling
In other words, storage has nearly run out and any gas deliveries unaccounted for into the Tennessee pipeline network might result in errr… pressure-related operational integrity issues for the company.
For those interested here’s how the Tennessee pipeline system fits into the US supply network:
And, for context, here are all US natural gas market centres and hubs in relation to major natural gas transportation corridors, courtesy of the EIA (click to enlarge):