Nautilus Pipeline shut in its system at Ship Shoal 207 and declared force majeure Sunday after discovering a leak. The pipeline said its initial investigation indicated that an anchor dragged across the system caused the damage. As of Sunday Nautilus nominations needed to be redirected to other available markets until further notice, a bulletin board posting said.

Northern Natural Gas extended a System Overrun Limitation (SOL) that was implemented Monday for the New Market, MN, #1 Town Border Station through Tuesday. It expanded an SOL for market-area Zone E/F, also implemented Monday, to all three market-area zones Tuesday, citing forecasts of below-zero minimum temperatures at many locations.

MRT lifted a System Protection Warning for Saturday only, then reinstated it effective Sunday until further notice.

As it had expected might be necessary, Southern Natural Gas reimplemented for Tuesday’s gas day the OFO Type 6 for short imbalances that it had lifted Saturday.

Southwest Gas declared a “hold to burn notice” Monday, saying it was “due to consistent and repeated underpulls from transportation customers and requests from Southwest’s upstream pipelines to draft gas that has been banked over the last several days.” In a related notice, Kern River said linepack was high Monday in the three farthest downstream of its four segments.

Saying the carbon dioxide content of gas at its Sand Springs receipt point had fallen to a level that met tariff specifications, Northwest raised available capacity there to 300,000 Dth/d Friday and then to the design capacity of 468,000 Dth/d Saturday.

ANR said Monday it had begun unplanned engine maintenance at its Shelbyville (IN) Compressor Station, which is reducing total ANR Glen Karn capacity into the Lebanon System to 430 MMcf/d through Thursday. Based on current nominations, ANR said it anticipated that the reduction may result in the curtailment of IT and Firm Secondary nominations. The same restrictions are possible along the Southeast Mainline, ANR said, as it continues engine maintenance at several compressor stations, which is causing a capacity reductions of 300 MMcf/d (leaving 1,103 MMcf/d available) through Thursday and then a reduction of 70 MMcf/d (leaving 1,333 MMcf/d available) from Feb. 6- March 31.

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