Based on weather forecasts and projected demand, Sonat isimplementing an OFO Type 3 today for seven system groups:Birmingham Group, South Main Zone 2, Atlanta Group, South Main Zone3, East of Wrens, Brunswick Line and Savannah Line.

MRT lifted Sunday the OFO it had implemented Dec. 20 (see DailyGPI, Dec. 20). It also lifted Monday the System Protection Warningthat went into effect Dec. 15.

Northern Natural Gas ended a market-area System OverrunLimitation Friday after it had been in effect for slightly morethan a week (see Daily GPI, Dec. 17).

NGPL has scheduled maintenance Feb. 8-17 at Compressor Station12 (Atoka County, OK). Firm primary shippers may have only 72% oftheir MDQ (Maximum Daily Quantity) available through that ArkomaLine segment during the work. The TexOk AG pooling point will beconsidered to be within the constrained area for schedulingpurposes. NGPL advised shippers to use the pooling point only ifthey are sourcing gas within the constrained area.

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