Because of a warming trend expected to begin in its market area today, Northern Natural Gas issued a System Underrun Limitation notice for all market area zones (ABC, D and E/F) to take effect Thanksgiving Day. The OFO is aimed at averting excessive receipts and a corresponding shortfall in deliveries.

Continuing to experience high linepack due to overproduction, low systemwide demand and limited storage injection capacity, Tennessee said it expects to keep the OFO Balancing Alert that took effect Saturday (see Daily GPI, Nov. 19) in place until at least next Monday.

Reliant said the #2 unit at Chandler Station near Wilburton, OK has gone down for unscheduled repairs that are estimated to take 10-12 days. IT capacity will be limited in the Quadrangle, Line AC and Perryville Hub segments, Reliant said, and further IT and secondary firm reductions in those areas may be required at some point.

The A-line of Northern Natural Gas will be down for planned maintenance Nov. 26-29. During this time NNG will not be able to receive gas from the Cargray Plant, affection about 3,000 MMBtu/d.

Florida Gas Transmission anticipates an in-service date of Dec. 1 for a new Zone 1 bidirectional meter station in Acadia Parish, LA. The interconnection with Egan Hub Partners, operators of a storage facility, will have a capacity of 250,000 MMBtu/d.

Columbia Gas anticipates returning its Line SM-123 in Mingo County, WV to service Monday. The line was shut in late last month due to long-wall mining activity (see Daily GPI, Oct. 25), cutting non-firm flows at 12 receipt points to zero and other restrictions.

In conjunction with its Stagecoach Project, Tennessee has scheduled a Nov. 26-28 outage of the Transco-Rivervale meter. Tennessee also said that from now through early December, it will be performing pipeline inspections in the Stagecoach construction area. From time to time, that may require lowering pipeline pressure and thus reducing available capacity on the 300 Line downstream of Main Line Valve 323.

Transwestern plans Nov. 29-30 maintenance at the P-3 Compressor Station on its Panhandle Lateral. There will be zero flow for those days at the Williams-Canadian River and ANR-Red Deer meters.

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