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All
Force Majeure
Maintenance
Capacity
Compressor
Sev 4–5 Only
Maritimes & Northeast Canada
09/10/2026- MNCA Operational Advisory
SEV 2/5
Informational
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Maritimes & Northeast U.S.
09/03/2026- MNUS Imbalance Notice -- UPDATE
SEV 2/5
Informational
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Maritimes & Northeast Canada
09/03/2026- MNCA Imbalance Notice -- UPDATE
SEV 2/5
Informational
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Maritimes & Northeast Canada
09/02/2026- MNCA Operational Advisory
SEV 2/5
Informational
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Maritimes & Northeast Canada
08/12/2026- MNCA Imbalance Notice -- UPDATE
SEV 3/5
Informational
Until Further Notice
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Maritimes & Northeast U.S.
08/12/2026- MNUS Customer Specific Operational Flow Order -- LIFTED
SEV 2/5
lifted ✓
Informational
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Maritimes & Northeast U.S.
08/09/2026- MNUS System Wide Operational Flow Order -- LIFTED
SEV 2/5
lifted ✓
Informational
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Maritimes & Northeast U.S.
08/09/2026- MNUS System Wide Operational Flow Order -- LIFTED -- CORRECTION
SEV 3/5
lifted ✓
Informational
Until Further Notice
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Maritimes & Northeast Canada
08/09/2026- MNCA Operational Flow Order -- LIFTED
SEV 2/5
lifted ✓
Informational
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Maritimes & Northeast Canada
08/09/2026- MNCA Imbalance Notice -- UPDATE
SEV 3/5
Informational
Until Further Notice
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Maritimes & Northeast U.S.
08/08/2026- MNUS Pipeline Conditions for 08/09/2026
SEV 3/5
Informational
Until Further Notice
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Maritimes & Northeast Canada
08/07/2026- MNCA Operational Flow Order -- EFF 8/8
SEV 3/5
Operational Alert
Until Further Notice
90 Days
Maritimes & Northeast Pipeline Canada (MNCA) has issued an Operational Flow Order effective August 8, 2026 and running until further notice (posted end date November 5, 2026). The OFO is system-wide and imposes a 12%/500 tolerance on imbalances due to the pipe, restricting shipper flexibility to leave gas in the system. No specific capacity volume is stated, but the OFO signals tightening system balance on the Canadian Maritimes corridor feeding New England.
MNCA OFO effective 8/8 tightens Canadian Maritimes supply discipline into New England; expect modest bullish pressure at Algonquin Citygate and Tennessee Zone 6 as shipper imbalance tolerance is cut and any supply shortfall has no available reroute.
Reroute: Limited: Algonquin Gas Transmission provides partial alternative for some New England deliveries but cannot replace Canadian Maritimes supply volumes; no direct bypass of MNCA exists for its core receipt points.
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Maritimes & Northeast U.S.
08/07/2026- MNUS Customer Specific Operational Flow Order -- EFF 8/7
SEV 3/5
Informational
Until Further Notice
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Maritimes & Northeast U.S.
08/07/2026- MNUS System Wide Operational Flow Order -- EFF 8/8
SEV 3/5
Informational
Until Further Notice
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Maritimes & Northeast U.S.
07/16/2026- MNUS Customer Specific Operational Flow Order -- LIFTED EFF 7/17
SEV 2/5
lifted ✓
Informational
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Maritimes & Northeast Canada
07/16/2026- MNCA Imbalance Notice -- UPDATE
SEV 3/5
Informational
Until Further Notice
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Maritimes & Northeast U.S.
07/16/2026- MNUS Imbalance Notice -- UPDATE
SEV 3/5
Informational
Until Further Notice
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Maritimes & Northeast U.S.
07/15/2026- MNUS Customer Specific Operational Flow Order -- EFF 7/16
SEV 2/5
Informational
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Maritimes & Northeast Canada
07/13/2026- MNCA Imbalance Notice -- UPDATE
SEV 2/5
Informational
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Maritimes & Northeast U.S.
07/13/2026- MNUS Imbalance Notice -- UPDATE
SEV 3/5
Informational
Until Further Notice
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Maritimes & Northeast U.S.
07/06/2026- MNUS Imbalance Notice -- UPDATE
SEV 3/5
Informational
Until Further Notice
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Maritimes & Northeast Canada
07/05/2026- MNCA Imbalance Notice -- UPDATE
SEV 3/5
Informational
Until Further Notice
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Maritimes & Northeast Canada
06/29/2026- MNCA Imbalance Notice -- UPDATE
SEV 2/5
Informational
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Maritimes & Northeast U.S.
06/29/2026- MNUS Imbalance Notice -- UPDATE
SEV 3/5
Informational
Until Further Notice
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Maritimes & Northeast Canada
05/21/2026- MNCA Imbalance Notice -- UPDATE
SEV 2/5
Informational
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Maritimes & Northeast U.S.
05/18/2026- MNUS Customer Specific Operational Flow Order -- LIFTED
SEV 2/5
lifted ✓
Informational
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Maritimes & Northeast Canada
05/15/2026- MNCA Customer Specific Operational Flow Order -- LIFTED
SEV 2/5
lifted ✓
Informational
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Maritimes & Northeast Canada
05/12/2026- MNCA Customer Specific Operational Flow Order -- EFF 5/14
SEV 3/5
Informational
Until Further Notice
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Maritimes & Northeast U.S.
05/05/2026- MNUS Customer Specific Operational Flow Order -- EFF 5/7
SEV 3/5
Informational
Until Further Notice
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Maritimes & Northeast U.S.
03/29/2026- MNUS Customer Specific Operational Flow Order -- LIFTED
SEV 2/5
lifted ✓
Informational
Pre-screen severity 2 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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Maritimes & Northeast U.S.
03/24/2026- MNUS Customer Specific Operational Flow Order -- EFF 3/24
SEV 3/5
Informational
Until Further Notice
Pre-screen severity 3 -- below full-score threshold.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
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About Maritimes & Northeast
Connects Atlantic Canada with New England; flows can run either way depending on the season and supply.
Operated by Enbridge Runs Nova Scotia and New Brunswick to Dracut, Massachusetts Trading points Algonquin Citygates, Dracut
Maritimes & Northeast
Line from EIA pipeline data; dots are facilities named in this pipeline’s notices (HIFLD locations). Dashed lines are schematic.
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