As a result of “much colder than normal temperatures forecasted for this time of the heating season” due to arrive early Sunday in its market area, NGPL issued an OFO that limited hourly takes and daily balancing at delivery points in the Market Delivery Zone effective at 6 a.m. CST Sunday until further notice. Another factor in the OFO’s implementation is “the high average hourly peak loads observed during similar weather conditions this year in January and February,” NGPL said.

Northern Natural Gas declared a System Overrun Limitation notice Saturday for all market-area zones (ABC, D and E/F).

Dominion declared a systemwide OFO that was to take effect Sunday, saying it had determined that based upon forecasted weather, hourly quantities delivered to customers in certain delivery areas could jeopardize its ability to provide firm services to others. See the bulletin board for OFO details.

Texas Eastern (Tetco) said Friday it had discovered a leak in its M1 24-inch line crossing the Mississippi River near the Oran (MO) Compressor Station. The river crossing was to be taken out of service to complete repairs, which were scheduled for Saturday (Feb. 22). In conjunction with the work, the pipeline cut 24-inch receipts between the Joaquin (TX) and Oran stations and IT through the Berne (OH) Station to zero for Saturday’s gas day. Shippers can source alternative supplies in the West Louisiana, East Louisiana, M1 30-inch, M2 30-inch and M2 24-inch segments, Tetco said. It planned to maintain deliveries to all points on the 24-inch system throughout the outage.

CenterPoint (formerly Reliant) issued an Operational Alert to take effect Saturday until further notice. Because of cold weather forecasts and low storage deliverability, CenterPoint said it would not schedule interruptible and secondary deliveries, and would limit service to primary firm obligations in the Quadrangle (Line J, Line JM-1, Line T, Line BT-1 South, and OM-1 and lines served off those systems, all located in Arkansas north of Malvern to Helena) until conditions improve. In order to maximize storage deliverability, the pipeline said it will not schedule receipts from the West 1 and West 2 Pooling Areas other than firm entitlements for shippers under Rate Schedules FT, HFT, NNTS and IT during this time.

A System Protection Warning was posted for Sunday by MRT, subject to these conditions: No Main Line IT, AOR or imbalance volumes for delivery north of Glendale, AR will be scheduled; firm volumes will be limited to their primary direction of flow; no short imbalance positions are being accepted; and shippers may not nominate supply from existing long imbalance positions. Shippers were urged to re-source supply to MRT’s East Line or reduce applicable delivery volumes in order to avoid being individual OFOs within the SPW period.

As it had previously cautioned (see Daily GPI, Feb. 21), Gulf South planned to schedule only firm primary transactions north of the Montpelier Compressor station starting Saturday and continuing at least through Monday’s gas day.

Citing forecasts of colder weather on its system, East Tennessee Natural Gas said Friday it would restrict Secondary receipts upstream of Stations 3104 and 3205 and Secondary deliveries downstream of Station 3313 effective with the start of Sunday’s gas day. In addition, ETNG will implement its Maximum Allowable Delivery Service (MAD) at that time. Unauthorized overrun charges for exceeding MAD will remain in effect until further notice, the pipeline said.

Pacific Gas & Electric did not extend a low-inventory OFO beyond Friday.

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