03/18/2026- AGT Hourly Customer Specific Operational Flow Order
SEV 4/5
Operational AlertUntil Further Notice
Algonquin Gas Transmission has issued a system-wide Hourly Customer Specific Operational Flow Order (OFO) effective March 18, 2026, and continuing until further notice (notice end date listed as June 16, 2026). The OFO imposes a No Deficiency Point constraint of 25%/250 on an hourly basis for all customers system-wide, indicating active system stress requiring shippers to maintain balanced or surplus positions on an intra-day basis. No specific capacity volume is stated, but the 'until further notice' language and system-wide scope signal an unresolved operational constraint.
Algonquin system-wide Hourly OFO active from March 18 with no firm restoration date -- expect significant bullish pressure at Algonquin Citygate and broader New England basis as shippers scramble to comply with hourly balancing requirements, with heightened spike risk given no reroute alternative exists for core New England deliveries.
Reroute: Limited to none: Algonquin and Iroquois are the two primary pipelines serving New England; Iroquois is not reported constrained at this time but cannot absorb full Algonquin system shortfall. No meaningful reroute exists for the core New England LDC market.
View original notice text
TSP Name: Algonquin Gas Transmission, LLC
Subject: AGT Hourly Customer Specific Operational Flow Order
Notice Type: Operational Flow Order
Critical Notice Description: Critical notice
Notice Status Description: Initiate
Notice Effective Date: 03/18/2026
Notice End Date: 06/16/2026
Posting Date: 03/18/2026
Notice Identifier: 175352
Required Response Indicator Description: No response required
Operational Area
Gas Day March 18 and until further notice
System Wide - All Customers
OFO in Effect No DP 5% / 500
Customer Specific
Hourly/System Wide OFO in Effect
Hourly Customer Specific Operational Flow Order
OFO In Effect: No DP Hourly OFO 25% / 250
Algonquin Gas Transmission
08/07/2026- AGT Operational Flow Order -- EFF 8/8
SEV 4/5
Operational AlertUntil Further Notice
Algonquin Gas Transmission has declared a system-wide Operational Flow Order effective August 8, 2026, and lasting until further notice (notice end date listed as 11/05/2026). The OFO prohibits daily pathing exceeding 4% over scheduled quantities (500 MMBtu minimum) for all system customers, with a tighter 2% / 500 MMBtu restriction applied to customer-specific nominations. No restoration timeline is given beyond 'until further notice,' indicating an open-ended supply management event on one of New England's two dominant interstate pipelines.
Algonquin system-wide OFO effective 8/8 with no fixed end date signals tightening New England supply balance; expect bullish pressure at Algonquin Citygate and elevated New England basis vs Henry Hub, with risk of extreme spike if Iroquois faces simultaneous constraint.
Reroute: Limited to none: Algonquin and Iroquois are the two primary pipelines serving New England; if Iroquois is simultaneously constrained, there is zero reroute available and extreme basis spikes are likely at Algonquin Citygate.
View original notice text
TSP Name: Algonquin Gas Transmission, LLC
Subject: AGT Operational Flow Order -- EFF 8/8
Notice Type: Operational Flow Order
Critical Notice Description: Critical notice
Notice Status Description: Initiate
Notice Effective Date: 08/08/2026
Notice End Date: 11/05/2026
Posting Date: 08/07/2026
Notice Identifier: 181418
Required Response Indicator Description: No response required
Operational Area
Gas Day August 6
Gas Day August 7
Gas Day August 8 and until further Notice
System Wide - All Customers
No OFO*
No OFO*
OFO In Effect: No DP 4% / 500
Customer Specific
No OFO*
OFO In Effect: No DP 2% / 500
OFO In Effect: No DP 2% / 500
Hourly Customer Specific
No OFO*
No OFO*
No OFO*
Algonquin Gas Transmission
03/20/2026- AGT Hourly Customer Specific Operational Flow Order
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
TSP Name: Algonquin Gas Transmission, LLC
Subject: AGT Hourly Customer Specific Operational Flow Order
Notice Type: Operational Flow Order
Critical Notice Description: Critical notice
Notice Status Description: Initiate
Notice Effective Date: 03/23/2026
Notice End Date: 06/18/2026
Posting Date: 03/20/2026
Notice Identifier: 175449
Required Response Indicator Description: No response required
Operational Area
Gas Day March 20 - March 22
Gas Day March 23 until further notice
System Wide - All Customers
No OFO*
OFO in Effect No DP 5% / 500
Customer Specific
No OFO*
No OFO
Hourly Customer Specific Operational Flow Order
No OFO*
OFO In Effect: No DP Hourly OFO 25% / 250
Algonquin Gas Transmission
03/19/2026- AGT Operational Flow Order -- EFF 3/23
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
TSP Name: Algonquin Gas Transmission, LLC
Subject: AGT Operational Flow Order -- EFF 3/23
Notice Type: Operational Flow Order
Critical Notice Description: Critical notice
Notice Status Description: Initiate
Notice Effective Date: 03/23/2026
Notice End Date: 06/17/2026
Posting Date: 03/19/2026
Notice Identifier: 175399
Required Response Indicator Description: No response required
Operational Area
Gas Day March 19
Gas Day March 20 - March 22
Gas Day March 23 until further notice
System Wide - All Customers
OFO in Effect No DP 5% / 500
No OFO*
OFO in Effect No DP 5% / 500
Customer Specific
Hourly/System Wide OFO in Effect
No OFO*
NO OFO
Hourly Customer Specific Operational Flow Order
OFO in Effect No DP Hourly OFO 25% / 250
NO OFO*
NO OFO
Algonquin Gas Transmission
03/26/2026- AGT Customer Specific Operational Flow Order
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
TSP Name: Algonquin Gas Transmission, LLC
Subject: AGT Customer Specific Operational Flow Order
Notice Type: Operational Flow Order
Critical Notice Description: Critical notice
Notice Status Description: Initiate
Notice Effective Date: 03/26/2026
Notice End Date: 06/24/2026
Posting Date: 03/26/2026
Notice Identifier: 175690
Required Response Indicator Description: No response required
Operational Area
Gas Day March 25
Gas Day March 26
Gas Day March 27 and until further notice
System Wide - All Customers
No OFO
No OFO*
OFO in Effect: No DP 5%/500
Customer Specific
NO OFO
OFO in Effect: No DS 5% / 250
OFO in Effect: No DS 5% / 250
Hourly Customer Specific
No Hourly OFO
No Hourly OFO
No Hourly OFO
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
TSP Name: Algonquin Gas Transmission, LLC
Subject: AGT Operational Flow Order
Notice Type: Operational Flow Order
Critical Notice Description: Critical notice
Notice Status Description: Initiate
Notice Effective Date: 03/26/2026
Notice End Date: 06/24/2026
Posting Date: 03/26/2026
Notice Identifier: 175684
Required Response Indicator Description: No response required
Operational Area
Gas Day March 25 and March 26
Gas Day March 27 and until further notice
System Wide - All Customers
No OFO*
OFO in Effect No DP 5%/500
Customer Specific
No OFO*
System Wide OFO in Effect
Hourly Customer Specific
No OFO*
System Wide OFO in Effect
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
TSP Name: Algonquin Gas Transmission, LLC
Subject: AGT Operational Flow Order - EFF 3-31
Notice Type: Operational Flow Order
Critical Notice Description: Critical notice
Notice Status Description: Initiate
Notice Effective Date: 03/31/2026
Notice End Date: 04/02/2026
Posting Date: 03/30/2026
Notice Identifier: 175854
Required Response Indicator Description: No response required
Operational Area
Gas Day March 29
Gas day March 31 and April 1
Gas Day April 2 and until further Notice
System Wide - All Customers
No OFO*
OFO in Effect: No DS 5% / 250
No OFO*
Customer Specific
OFO in Effect: No DS 5% / 250
OFO in Effect: No DS 5% / 250
OFO in Effect: No DS 5% / 250
Hourly Customer Specific
No OFO*
No OFO*
No OFO*
Algonquin Gas Transmission
04/09/2026- AGT Operational Flow Order -- EFF 4/13
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
TSP Name: Algonquin Gas Transmission, LLC
Subject: AGT Operational Flow Order -- EFF 4/13
Notice Type: Operational Flow Order
Critical Notice Description: Critical notice
Notice Status Description: Initiate
Notice Effective Date: 04/13/2026
Notice End Date: 04/16/2026
Posting Date: 04/09/2026
Notice Identifier: 176303
Required Response Indicator Description: No response required
Operational Area
Gas day April 9 - April 12
Gas Day April 13 - 15
Gas Day April 16 and until further Notice
System Wide - All Customers
No OFO*
OFO in Effect: No DS 6% / 250
No OFO*
Customer Specific
OFO in Effect: No DS 5% / 250
OFO in Effect: No DS 5% / 250
OFO in Effect: No DS 5% / 250
Hourly Customer Specific
No OFO*
No OFO*
No OFO*
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
TSP Name: Algonquin Gas Transmission, LLC
Subject: AGT Operational Flow Order -- UPDATE
Notice Type: Operational Flow Order
Critical Notice Description: Critical notice
Notice Status Description: Supersede
Notice Effective Date: 04/07/2026
Notice End Date: 07/05/2026
Posting Date: 04/06/2026
Notice Identifier: 176168
Prior Notice Identifier: 176166
Required Response Indicator Description: No response required
Operational Area
Gas Day April 5
Gas Day April 6
Gas Day April 7 - April 8
Gas Day April 9 and until further Notice
System Wide - All Customers
OFO in Effect: No DS 5% / 250
No OFO*
OFO in Effect: No DP 5% / 250
No OFO*
Customer Specific
OFO in Effect: No DS 5% / 250
OFO in Effect: No DS 5% / 250
OFO in Effect: No DS 5% / 250
OFO in Effect: No DS 5% / 250
Hourly Customer Specific
No OFO*
No OFO*
No OFO*
No OFO*
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
TSP Name: Algonquin Gas Transmission, LLC
Subject: AGT Operational Flow Order -- UPDATE
Notice Type: Operational Flow Order
Critical Notice Description: Critical notice
Notice Status Description: Supersede
Notice Effective Date: 04/06/2026
Notice End Date: 07/05/2026
Posting Date: 04/06/2026
Notice Identifier: 176166
Prior Notice Identifier: 175951
Required Response Indicator Description: No response required
Operational Area
Gas Day April 5
Gas Day April 6
Gas Day April 7 - April 8
Gas Day April 9 and until further Notice
System Wide - All Customers
OFO in Effect: No DS 5% / 250
No OFO*
OFO in Effect: No DP 5% / 250
No OFO*
Customer Specific
OFO in Effect: No DS 5% / 250
OFO in Effect: No DS 5% / 250
OFO in Effect: No DS 5% / 250
OFO in Effect: No DS 5% / 250
Hourly Customer Specific
No OFO*
No OFO*
No OFO*
No OFO*
Algonquin Gas Transmission
04/14/2026- AGT Operational Flow Order -- EFF 4/16
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
TSP Name: Algonquin Gas Transmission, LLC
Subject: AGT Operational Flow Order -- EFF 4/16
Notice Type: Operational Flow Order
Critical Notice Description: Critical notice
Notice Status Description: Initiate
Notice Effective Date: 04/16/2026
Notice End Date: 04/17/2026
Posting Date: 04/14/2026
Notice Identifier: 176562
Required Response Indicator Description: No response required
Operational Area
Gas Day April 14 - 15
Gas Day April 16
Gas Day April 17 and until further Notice
System Wide - All Customers
OFO in Effect: No DS 6% / 250
OFO in Effect: No DP 4% / 500
No OFO*
Customer Specific
OFO in Effect: No DS 5% / 250
No OFO*
No OFO*
Hourly Customer Specific
No OFO*
No OFO*
No OFO*
Algonquin Gas Transmission
04/16/2026- AGT Operational Flow Order -- EFF 4/20
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
TSP Name: Algonquin Gas Transmission, LLC
Subject: AGT Operational Flow Order -- EFF 4/20
Notice Type: Operational Flow Order
Critical Notice Description: Critical notice
Notice Status Description: Initiate
Notice Effective Date: 04/20/2026
Notice End Date: 04/22/2026
Posting Date: 04/16/2026
Notice Identifier: 176682
Required Response Indicator Description: No response required
Operational Area
Gas Day April 16
Gas Day April 17
Gas Day April 18 - April 19
Gas Day April 20 - April 21
Gas Day April 22 until further notice
System Wide - All Customers
OFO in Effect: No DP 4% / 500
No OFO*
No OFO*
OFO in Effect: No DP 5% / 500
No OFO*
Customer Specific
No OFO*
No OFO*
OFO in Effect: No DS 5% / 250
No OFO*
No OFO*
Hourly Customer Specific
No OFO*
No OFO*
No OFO*
No OFO*
No OFO*
Algonquin Gas Transmission
04/16/2026- AGT Customer Specific Operational Flow Order -- EFF 4/18
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
TSP Name: Algonquin Gas Transmission, LLC
Subject: AGT Customer Specific Operational Flow Order -- EFF 4/18
Notice Type: Operational Flow Order
Critical Notice Description: Critical notice
Notice Status Description: Initiate
Notice Effective Date: 04/18/2026
Notice End Date: 04/20/2026
Posting Date: 04/16/2026
Notice Identifier: 176681
Required Response Indicator Description: No response required
Operational Area
Gas Day April 16
Gas Day April 17
Gas Day April 18 and April 19
Gas Day April 20 - April 21
Gas Day April 22 and until further notice
System Wide - All Customers
OFO in Effect: No DP 4% / 500
No OFO*
No OFO*
OFO in Effect: No DP 5% / 500
NO OFO*
Customer Specific
No OFO*
NO OFO*
OFO in Effect: No DS 5% / 250
No OFO*
NO OFO*
Hourly Customer Specific
No OFO*
No OFO*
No OFO*
No OFO*
No OFO*
Algonquin Gas Transmission
04/28/2026- AGT Operational Flow Order -- EFF 4/29 and 5/1
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
TSP Name: Algonquin Gas Transmission, LLC
Subject: AGT Operational Flow Order -- EFF 4/29 and 5/1
Notice Type: Operational Flow Order
Critical Notice Description: Critical notice
Notice Status Description: Initiate
Notice Effective Date: 04/29/2026
Notice End Date: 07/27/2026
Posting Date: 04/28/2026
Notice Identifier: 177174
Required Response Indicator Description: No response required
Operational Area
Gas Day April 28
Gas Day April 29
Gas Day April 30
Gas Day May 1
Gas Day May 2 until further notice
System Wide - All Customers
No OFO*
OFO in Effect: No DP 8% / 500
No OFO*
OFO in Effect: No DP 8% / 500
No OFO*
Customer Specific
No OFO*
No OFO*
No OFO*
No OFO*
No OFO*
Hourly Customer Specific
No OFO*
No OFO*
No OFO*
No OFO*
No OFO*
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
TSP Name: Algonquin Gas Transmission, LLC
Subject: AGT Operational Flow Order -- EFF 5/2
Notice Type: Operational Flow Order
Critical Notice Description: Critical notice
Notice Status Description: Initiate
Notice Effective Date: 05/02/2026
Notice End Date: 05/04/2026
Posting Date: 04/30/2026
Notice Identifier: 177249
Required Response Indicator Description: No response required
Operational Area
Gas day April 30
Gas Day May 1
Gas Day May 2 - May 3
Gas Day May 4 and until further Notice
System Wide - All Customers
No OFO*
OFO in Effect: No DP 8% / 500
OFO in Effect: No DS 5% / 500
No OFO*
Customer Specific
No OFO*
No OFO*
No OFO*
No OFO*
Hourly Customer Specific
No OFO*
No OFO*
No OFO*
No OFO*
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
TSP Name: Algonquin Gas Transmission, LLC
Subject: AGT Operational Flow Order -- EFF 5/9
Notice Type: Operational Flow Order
Critical Notice Description: Critical notice
Notice Status Description: Initiate
Notice Effective Date: 05/09/2026
Notice End Date: 05/11/2026
Posting Date: 05/07/2026
Notice Identifier: 177580
Required Response Indicator Description: No response required
Operational Area
Gas day May 7 - May 8
Gas Day May 9 - May 10
Gas Day May 11 and until further Notice
System Wide - All Customers
No OFO*
OFO in Effect: No DS 5% / 500
No OFO*
Customer Specific
No OFO*
No OFO*
No OFO*
Hourly Customer Specific
No OFO*
No OFO*
No OFO*
Algonquin Gas Transmission
05/14/2026- AGT Operational Flow Order -- EFF 5/16
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
TSP Name: Algonquin Gas Transmission, LLC
Subject: AGT Operational Flow Order -- EFF 5/16
Notice Type: Operational Flow Order
Critical Notice Description: Critical notice
Notice Status Description: Initiate
Notice Effective Date: 05/16/2026
Notice End Date: 05/18/2026
Posting Date: 05/14/2026
Notice Identifier: 177863
Required Response Indicator Description: No response required
Operational Area
Gas day May 14 - May 15
Gas Day May 16 - May 17
Gas Day May 18 and until further Notice
System Wide - All Customers
No OFO*
OFO In Effect: No DS 8% / 500
No OFO*
Customer Specific
No OFO*
No OFO*
No OFO*
Hourly Customer Specific
No OFO*
No OFO*
No OFO*
Algonquin Gas Transmission
05/18/2026- AGT Operational Flow Order -- EFF 5/19
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
TSP Name: Algonquin Gas Transmission, LLC
Subject: AGT Operational Flow Order -- EFF 5/19
Notice Type: Operational Flow Order
Critical Notice Description: Critical notice
Notice Status Description: Initiate
Notice Effective Date: 05/19/2026
Notice End Date: 05/20/2026
Posting Date: 05/18/2026
Notice Identifier: 178064
Required Response Indicator Description: No response required
Operational Area
Gas Day May 17
Gas Day May 18
Gas Day May 19
Gas Day May 20 until further notice
System Wide - All Customers
OFO in Effect: No DS 8% / 500
No OFO*
OFO in Effect: No DP 10% / 500
No OFO*
Customer Specific
No OFO*
No OFO*
No OFO*
No OFO*
Hourly Customer Specific
No OFO*
No OFO*
No OFO*
No OFO*
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
TSP Name: Algonquin Gas Transmission, LLC
Subject: AGT Operational Flow Order - EFF 5/23
Notice Type: Operational Flow Order
Critical Notice Description: Critical notice
Notice Status Description: Initiate
Notice Effective Date: 05/23/2026
Notice End Date: 05/26/2026
Posting Date: 05/21/2026
Notice Identifier: 178188
Required Response Indicator Description: No response required
Operational Area
Gas day May 21 - May 22
Gas Day May 23 - May 25
Gas Day May 26 and until further Notice
System Wide - All Customers
No OFO*
OFO In Effect: No DS 8% / 500
No OFO*
Customer Specific
No OFO*
No OFO*
No OFO*
Hourly Customer Specific
No OFO*
No OFO*
No OFO*
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
TSP Name: Algonquin Gas Transmission, LLC
Subject: AGT Operational Flow Order - EFF 5/28
Notice Type: Operational Flow Order
Critical Notice Description: Critical notice
Notice Status Description: Initiate
Notice Effective Date: 05/28/2026
Notice End Date: 06/02/2026
Posting Date: 05/27/2026
Notice Identifier: 178377
Required Response Indicator Description: No response required
Operational Area
Gas day May 27
Gas Day May 28 - June 1
Gas Day June 2 and until further Notice
System Wide - All Customers
No OFO*
OFO In Effect: No DS 8% / 500
No OFO*
Customer Specific
No OFO*
No OFO*
No OFO*
Hourly Customer Specific
No OFO*
No OFO*
No OFO*
Algonquin Gas Transmission
06/11/2026- AGT Customer Specific Operational Flow Order -- EFF 6/12
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
TSP Name: Algonquin Gas Transmission, LLC
Subject: AGT Customer Specific Operational Flow Order -- EFF 6/12
Notice Type: Operational Flow Order
Critical Notice Description: Critical notice
Notice Status Description: Initiate
Notice Effective Date: 06/12/2026
Notice End Date: 09/09/2026
Posting Date: 06/11/2026
Notice Identifier: 179075
Required Response Indicator Description: No response required
Operational Areas
Gas Day June 11
Gas Day June 12 and until further notice
System Wide OFO
No System Wide OFO
No System Wide OFO
Customer Specific Daily Operational Flow Order
No Customer Specific Daily
OFO in Effect: No DP 2% / 250
Algonquin Gas Transmission
06/17/2026- AGT Operational Flow Order -- EFF 6/20
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
TSP Name: Algonquin Gas Transmission, LLC
Subject: AGT Operational Flow Order -- EFF 6/20
Notice Type: Operational Flow Order
Critical Notice Description: Critical notice
Notice Status Description: Initiate
Notice Effective Date: 06/20/2026
Notice End Date: 06/22/2026
Posting Date: 06/17/2026
Notice Identifier: 179308
Required Response Indicator Description: No response required
Operational Area
Gas day June 17 - June 19
Gas Day June 20 - June 21
Gas Day June 22 and until further Notice
System Wide - All Customers
No OFO*
OFO In Effect: No DS 8% / 500
No OFO*
Customer Specific
No OFO*
No OFO*
No OFO*
Hourly Customer Specific
No OFO*
No OFO*
No OFO*
Algonquin Gas Transmission
06/29/2026- AGT Operational Flow Order -- EFF 6/30
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
TSP Name: Algonquin Gas Transmission, LLC
Subject: AGT Operational Flow Order -- EFF 6/30
Notice Type: Operational Flow Order
Critical Notice Description: Critical notice
Notice Status Description: Initiate
Notice Effective Date: 06/30/2026
Notice End Date: 09/27/2026
Posting Date: 06/29/2026
Notice Identifier: 179764
Required Response Indicator Description: No response required
Operational Area
Gas day June 29
Gas Day June 30
Gas Day July 1 and until further Notice
System Wide - All Customers
No OFO*
OFO In Effect: No DP 5% / 500
OFO In Effect: No DP 2% / 500
Customer Specific
No OFO*
No OFO*
No OFO*
Hourly Customer Specific
No OFO*
No OFO*
No OFO*
Algonquin Gas Transmission
07/07/2026- AGT Customer Specific Operational Flow Order -- EFF 7/7
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
TSP Name: Algonquin Gas Transmission, LLC
Subject: AGT Customer Specific Operational Flow Order -- EFF 7/7
Notice Type: Operational Flow Order
Critical Notice Description: Critical notice
Notice Status Description: Initiate
Notice Effective Date: 07/07/2026
Notice End Date: 10/05/2026
Posting Date: 07/07/2026
Notice Identifier: 180093
Required Response Indicator Description: No response required
Operational Area
Gas Day July 6
Gas Day July 7 and until further notice
System Wide - All Customers
No OFO*
No OFO*
Customer Specific
No OFO*
OFO in Effect: No DS 5% / 500
Hourly Customer Specific
No OFO*
No OFO*
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
TSP Name: Algonquin Gas Transmission, LLC
Subject: AGT Operational Flow Order-- EFF 7/9
Notice Type: Operational Flow Order
Critical Notice Description: Critical notice
Notice Status Description: Initiate
Notice Effective Date: 07/09/2026
Notice End Date: 07/11/2026
Posting Date: 07/08/2026
Notice Identifier: 180137
Required Response Indicator Description: No response required
Operational Area
Gas day July 8
Gas Day July 9 and July 10
Gas Day July 11 and until further Notice
System Wide - All Customers
No OFO*
OFO In Effect: No DP 8% / 500
No OFO*
Customer Specific
OFO In Effect: No DS 5% / 500
OFO In Effect: No DS 5% / 500
OFO In Effect: No DS 5% / 500
Hourly Customer Specific
No OFO*
No OFO*
No OFO*
Algonquin Gas Transmission
07/20/2026- AGT Customer Specific Operational Flow Order -- EFF 7/20
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
TSP Name: Algonquin Gas Transmission, LLC
Subject: AGT Customer Specific Operational Flow Order -- EFF 7/20
Notice Type: Operational Flow Order
Critical Notice Description: Critical notice
Notice Status Description: Initiate
Notice Effective Date: 07/20/2026
Notice End Date: 10/18/2026
Posting Date: 07/20/2026
Notice Identifier: 180651
Required Response Indicator Description: No response required
Operational Area
Gas Day July 19
Gas Day July 20 and until further notice
System Wide - All Customers
No OFO*
NO OFO*
Customer Specific
No OFO*
OFO in Effect: No DS 2% / 100
Hourly Customer Specific
No OFO*
No OFO*
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
TSP Name: Algonquin Gas Transmission, LLC
Subject: AGT Operational Advisory
Notice Type: Operational Alert
Critical Notice Description: Critical notice
Notice Status Description: Initiate
Notice Effective Date: 08/06/2026
Notice End Date: 11/04/2026
Posting Date: 08/06/2026
Notice Identifier: 181375
Required Response Indicator Description: No response required
Notice Text:
Algonquin Gas Transmission, LLC (Algonquin) has limited operational flexibility to manage due pipeline imbalances. As such, effective immediately, August 6, 2026, Algonquin requires all shippers and point operators to keep actual daily takes out of the system equal to or less than scheduled quantities regardless of their cumulative imbalance position unless otherwise coordinated with your operations account representative.
If necessary, Algonquin will utilize any provision of its tariff to ensure system integrity including the issuance of customer specific or system wide OFOs.
This notice will remain in effect until further notice.
Please contact your Operations Account Representative if you have any questions.
Algonquin Gas Transmission
08/06/2026- AGT Customer Specific Operational Flow Order -- EFF 8/7
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
TSP Name: Algonquin Gas Transmission, LLC
Subject: AGT Customer Specific Operational Flow Order -- EFF 8/7
Notice Type: Operational Flow Order
Critical Notice Description: Critical notice
Notice Status Description: Initiate
Notice Effective Date: 08/07/2026
Notice End Date: 11/04/2026
Posting Date: 08/06/2026
Notice Identifier: 181410
Required Response Indicator Description: No response required
Operational Areas
Gas Day August 6
Gas Day August 7 and until further notice
System Wide OFO
No System Wide OFO
No System Wide OFO
Customer Specific Daily Operational Flow Order
No Customer Specific Daily
OFO in Effect: No DP 2% / 500
Algonquin Gas Transmission
08/24/2026- AGT Operational Flow Order -- EFF 8/26
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
TSP Name: Algonquin Gas Transmission, LLC
Subject: AGT Operational Flow Order -- EFF 8/26
Notice Type: Operational Flow Order
Critical Notice Description: Critical notice
Notice Status Description: Initiate
Notice Effective Date: 08/26/2026
Notice End Date: 11/22/2026
Posting Date: 08/24/2026
Notice Identifier: 182100
Required Response Indicator Description: No response required
Operational Area
Gas Day August 24 - August 25
Gas Day August 26 and until further notice
System Wide - All Customers
No OFO*
OFO In Effect: No DS 6% / 500
Customer Specific
No OFO*
No OFO*
Hourly Customer Specific
No OFO*
No OFO*
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
TSP Name: Algonquin Gas Transmission, LLC
Subject: Algonquin Operational Notice - UPDATE
Notice Type: Capacity Constraint
Critical Notice Description: Critical notice
Notice Status Description: Supersede
Notice Effective Date: 09/01/2026
Notice End Date: 11/30/2026
Posting Date: 09/01/2026
Notice Identifier: 182435
Prior Notice Identifier: 182434
Required Response Indicator Description: No response required
00011
TAUNTON (BRISTOL, MA)
00013
RHODE ISLAND ENERGY- PORTSMOUTH (NEWPORT, RI)
00015
FREETOWN (BRISTOL, MA)
00016
NEW ENGLAND GAS COMPANY FALL RIVER (BRISTOL, MA)
00017
NEW BEDFORD (BRISTOL, MA)
00018
BOURNE STATION RELOCATION (MAINLAND BOURNE)
00019
PLYMOUTH (PLYMOUTH, MA)
00029
MIDDLEBORO (PLYMOUTH, MA)
00033
RHODE ISLAND ENERGY - TIVERTON (NEWPORT, RI)
00049
NEW ENGLAND GAS COMPANY WESTPORT (BRISTOL, MA)
00051
SAGAMORE STATION RELOCATION (MAINLAND SAGAMORE)
00093
DARTMOUTH POWER (NORFOLK, MA)
00806
CANAL GENERATING
00812
TMPL (BRISTOL, MA)
00813
NATIONAL GRID-ROCHESTER (PLYMOUTH, MA)
00815
DIGHTON POWER LLC BRISTOL MA (BRISTOL, MA)
00816
REVERE POWER (PROVIDENCE, RI)
00821
PINEHILLS METER - (PLYMOUTH, MA)
00824
NEW ENGLAND GAS COMPANY FALL RIVER GAS-NORTH FALL RIVER STA-(BRIST
00829
NATIONAL GRID-SANDWICH (BARNSTABLE, MA)
00839
NSTAR - ASSONET, BRISTOL CO, MA
80003
INTERCONNECT AGT G-10 LAT & CLEARY LATERAL
80004
INTERCONNECT AGT G-SYS BOURNE, MA & CANAL LATERAL
80047
LATERAL G SYSTEM CANAL MAINLINE
80049
LATERAL G SYSTEM CLEARY MAINLINE
80806
G-24 MAINLINE HEAD OF LATERAL
99825
FALL RIVER GAS
00020
MILFORD (WORCESTER, MA)
00021
NATIONAL GRID- NORWOOD (NORFOLK, MA)
00022
WESTWOOD (NORFOLK, MA)
00023
NATIONAL GRID- EAST BRAINTREE (NORFOLK, MA)
00024
BROCKTON (PLYMOUTH, MA)
00025
HOPEDALE (NORFOLK, MA)
00027
NATIONAL GRID- EVERETT (MIDDLESEX, MA)
00028
BROOKFORD ST (MIDDLESEX, MA)
00032
NATIONAL GRID-WALTHAM (MIDDLESEX, MA)
00036
WEST MEDWAY (NORFOLK, MA)
00038
CHARLES RIVER RD (NORFOLK, MA)
00043
ASHLAND (MIDDLESEX, MA)
00052
NATIONAL GRID-PONKAPOAG (NORFOLK, MA)
00057
NATIONAL GRID-WESTON (MIDDLESEX, MA)
00058
CANTON (NORFOLK, MA)
00061
WOODLAND RD (NORFOLK, MA)
00074
NATIONAL GRID-WELLESLEY (NORFOLK, MA)
00080
NATIONAL GRID-POLAROID (MIDDLESEX, MA)
00081
NATIONAL GRID-POTTER ST. (NORFOLK, MA)
00089
NATIONAL GRID-MEDFORD (MIDDLESEX, MA)
00094
BELLINGHAM (NORFOLK, MA)
00206
LINCOLN (MIDDLESEX, MA)
00215
SALEM ESSEX CO., MA (ESSEX, MA)
00230
MARATHON (MIDDLESEX, MA)
00271
EVERETT INT. (MIDDLESEX, MA)
00620
EXCELERATE ENERGY LP - EXCELERATE MS - (ESSEX, MA)
00621
EXCELERATE ENERGY LP - EXCELLENCE MS - (ESSEX, MA)
00622
EXCELERATE ENERGY LP - NE GATEWAY-EXPLORER (ESSEX, MA)
00624
EXCELERATE ENERGY LP - EXQUISITE (ESSEX, MA)
00625
EXCELERATE ENERGY LP - EXPEDIENT (ESSEX, MA)
00626
EXCELERATE ENERGY LP - EXEMPLAR (ESSEX, MA)
00630
SUEZ NEPTUNE LNG - (ESSEX, MA)
00631
SUEZ CAPE ANN, LNG - (ESSEX, MA)
00801
MILFORD POWER
00803
FORE RIVER (NORFOLK, MA)
00814
ANP BELLINGHAM ENERGY COMPANY (NORFOLK, MA)
00823
SHARON STATION- (NORFOLK, MA)
00826
MYSTIC (MIDDLESEX, MA)
00827
NATIONAL GRID-WEYMOUTH (NORFOLK, MA)
00830
MARATHON (MIDDLESEX, MA)
00832
NORFOLK METER STATION (NORFOLK, MA)
00834
BELD - BRAINTREE ELECTRIC LIGHT (NORFOLK, MA)
00837
SALEM HARBOR STATION
00838
NATIONAL GRID - WEST ROXBURY
00844
EXELON/CONSTELLATION ENERGY, NORFOLK CO., MA
01215
SALEM ESSEX CO., MA NORTH (ESSEX, MA)
02630
NEPTUNE LNG - (ESSEX, MA)
80012
LATERAL Y SYSTEM
80013
LATERAL Y SYSTEM MAINLINE
80022
LATERAL T SYSTEM
80023
LATERAL T SYSTEM MAINLINE
80042
Q-1 EXTENSION MAINLINE
80060
G-24 LATERAL HEAD OF LATERAL
80094
J-2 SYSTEM
80095
J-2 SYSTEM MAINLINE
80104
WEST ROXBURY LATERAL
80105
WEST ROXBURY LATERAL (MAINLINE)
80106
SALEM LATERAL (MAINLINE)
80107
SALEM LATERAL
80108
LINCOLN LATERAL (MAINLINE)
80109
LINCOLN LATERAL
88202
INTERCONNECTION BETWEEN NORTHEAST GATEWAY AND HUBLINE MAINLINE
88203
INTERCONNECTION BETWEEN NORTHEAST GATEWAY AND HUBLINE
88271
DISTRIGAS - EVERETT
89847
NORTHEAST GATEWAY DEEP WATER PORT (DWP1)
89848
INTERCONNECT BETWEEN SUEZ NEPTUNE AND HUBLINE
99817
EVERSOURCE GAS COMPANY OF MA
99818
BOS GAS CO D
99822
NSTAR
99837
DISTRIGAS LDC
99855
SALEM LATERAL CUSTODY TRANSFER POINT
99857
EAST BRAINTREE CUSTODY TRANSFER POINT
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
TSP Name: Algonquin Gas Transmission, LLC
Subject: Algonquin Operational Notice - UPDATE
Notice Type: Capacity Constraint
Critical Notice Description: Critical notice
Notice Status Description: Supersede
Notice Effective Date: 09/01/2026
Notice End Date: 11/30/2026
Posting Date: 09/01/2026
Notice Identifier: 182434
Prior Notice Identifier: 182423
Required Response Indicator Description: No response required
00011
TAUNTON (BRISTOL, MA)
00013
RHODE ISLAND ENERGY- PORTSMOUTH (NEWPORT, RI)
00015
FREETOWN (BRISTOL, MA)
00016
NEW ENGLAND GAS COMPANY FALL RIVER (BRISTOL, MA)
00017
NEW BEDFORD (BRISTOL, MA)
00018
BOURNE STATION RELOCATION (MAINLAND BOURNE)
00019
PLYMOUTH (PLYMOUTH, MA)
00029
MIDDLEBORO (PLYMOUTH, MA)
00033
RHODE ISLAND ENERGY - TIVERTON (NEWPORT, RI)
00049
NEW ENGLAND GAS COMPANY WESTPORT (BRISTOL, MA)
00051
SAGAMORE STATION RELOCATION (MAINLAND SAGAMORE)
00093
DARTMOUTH POWER (NORFOLK, MA)
00806
CANAL GENERATING
00812
TMPL (BRISTOL, MA)
00813
NATIONAL GRID-ROCHESTER (PLYMOUTH, MA)
00815
DIGHTON POWER LLC BRISTOL MA (BRISTOL, MA)
00816
REVERE POWER (PROVIDENCE, RI)
00821
PINEHILLS METER - (PLYMOUTH, MA)
00824
NEW ENGLAND GAS COMPANY FALL RIVER GAS-NORTH FALL RIVER STA-(BRIST
00829
NATIONAL GRID-SANDWICH (BARNSTABLE, MA)
00839
NSTAR - ASSONET, BRISTOL CO, MA
80003
INTERCONNECT AGT G-10 LAT & CLEARY LATERAL
80004
INTERCONNECT AGT G-SYS BOURNE, MA & CANAL LATERAL
80047
LATERAL G SYSTEM CANAL MAINLINE
80049
LATERAL G SYSTEM CLEARY MAINLINE
80806
G-24 MAINLINE HEAD OF LATERAL
99825
FALL RIVER GAS
00020
MILFORD (WORCESTER, MA)
00021
NATIONAL GRID- NORWOOD (NORFOLK, MA)
00022
WESTWOOD (NORFOLK, MA)
00023
NATIONAL GRID- EAST BRAINTREE (NORFOLK, MA)
00024
BROCKTON (PLYMOUTH, MA)
00025
HOPEDALE (NORFOLK, MA)
00027
NATIONAL GRID- EVERETT (MIDDLESEX, MA)
00028
BROOKFORD ST (MIDDLESEX, MA)
00032
NATIONAL GRID-WALTHAM (MIDDLESEX, MA)
00036
WEST MEDWAY (NORFOLK, MA)
00038
CHARLES RIVER RD (NORFOLK, MA)
00043
ASHLAND (MIDDLESEX, MA)
00052
NATIONAL GRID-PONKAPOAG (NORFOLK, MA)
00057
NATIONAL GRID-WESTON (MIDDLESEX, MA)
00058
CANTON (NORFOLK, MA)
00061
WOODLAND RD (NORFOLK, MA)
00074
NATIONAL GRID-WELLESLEY (NORFOLK, MA)
00080
NATIONAL GRID-POLAROID (MIDDLESEX, MA)
00081
NATIONAL GRID-POTTER ST. (NORFOLK, MA)
00089
NATIONAL GRID-MEDFORD (MIDDLESEX, MA)
00094
BELLINGHAM (NORFOLK, MA)
00206
LINCOLN (MIDDLESEX, MA)
00215
SALEM ESSEX CO., MA (ESSEX, MA)
00230
MARATHON (MIDDLESEX, MA)
00271
EVERETT INT. (MIDDLESEX, MA)
00620
EXCELERATE ENERGY LP - EXCELERATE MS - (ESSEX, MA)
00621
EXCELERATE ENERGY LP - EXCELLENCE MS - (ESSEX, MA)
00622
EXCELERATE ENERGY LP - NE GATEWAY-EXPLORER (ESSEX, MA)
00624
EXCELERATE ENERGY LP - EXQUISITE (ESSEX, MA)
00625
EXCELERATE ENERGY LP - EXPEDIENT (ESSEX, MA)
00626
EXCELERATE ENERGY LP - EXEMPLAR (ESSEX, MA)
00630
SUEZ NEPTUNE LNG - (ESSEX, MA)
00631
SUEZ CAPE ANN, LNG - (ESSEX, MA)
00801
MILFORD POWER
00803
FORE RIVER (NORFOLK, MA)
00814
ANP BELLINGHAM ENERGY COMPANY (NORFOLK, MA)
00823
SHARON STATION- (NORFOLK, MA)
00826
MYSTIC (MIDDLESEX, MA)
00827
NATIONAL GRID-WEYMOUTH (NORFOLK, MA)
00830
MARATHON (MIDDLESEX, MA)
00832
NORFOLK METER STATION (NORFOLK, MA)
00834
BELD - BRAINTREE ELECTRIC LIGHT (NORFOLK, MA)
00837
SALEM HARBOR STATION
00838
NATIONAL GRID - WEST ROXBURY
00844
EXELON/CONSTELLATION ENERGY, NORFOLK CO., MA
01215
SALEM ESSEX CO., MA NORTH (ESSEX, MA)
02630
NEPTUNE LNG - (ESSEX, MA)
80012
LATERAL Y SYSTEM
80013
LATERAL Y SYSTEM MAINLINE
80022
LATERAL T SYSTEM
80023
LATERAL T SYSTEM MAINLINE
80042
Q-1 EXTENSION MAINLINE
80060
G-24 LATERAL HEAD OF LATERAL
80094
J-2 SYSTEM
80095
J-2 SYSTEM MAINLINE
80104
WEST ROXBURY LATERAL
80105
WEST ROXBURY LATERAL (MAINLINE)
80106
SALEM LATERAL (MAINLINE)
80107
SALEM LATERAL
80108
LINCOLN LATERAL (MAINLINE)
80109
LINCOLN LATERAL
88202
INTERCONNECTION BETWEEN NORTHEAST GATEWAY AND HUBLINE MAINLINE
88203
INTERCONNECTION BETWEEN NORTHEAST GATEWAY AND HUBLINE
88271
DISTRIGAS - EVERETT
89847
NORTHEAST GATEWAY DEEP WATER PORT (DWP1)
89848
INTERCONNECT BETWEEN SUEZ NEPTUNE AND HUBLINE
99817
EVERSOURCE GAS COMPANY OF MA
99818
BOS GAS CO D
99822
NSTAR
99837
DISTRIGAS LDC
99855
SALEM LATERAL CUSTODY TRANSFER POINT
99857
EAST BRAINTREE CUSTODY TRANSFER POINT
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
TSP Name: Algonquin Gas Transmission, LLC
Subject: Algonquin Operational Notice
Notice Type: Capacity Constraint
Critical Notice Description: Critical notice
Notice Status Description: Initiate
Notice Effective Date: 09/01/2026
Notice End Date: 11/30/2026
Posting Date: 09/01/2026
Notice Identifier: 182423
Required Response Indicator Description: No response required
00011
TAUNTON (BRISTOL, MA)
00012
RHODE ISLAND ENERGY - WARREN (BRISTOL, RI)
00013
RHODE ISLAND ENERGY- PORTSMOUTH (NEWPORT, RI)
00015
FREETOWN (BRISTOL, MA)
00016
NEW ENGLAND GAS COMPANY FALL RIVER (BRISTOL, MA)
00017
NEW BEDFORD (BRISTOL, MA)
00018
BOURNE STATION RELOCATION (MAINLAND BOURNE)
00019
PLYMOUTH (PLYMOUTH, MA)
00029
MIDDLEBORO (PLYMOUTH, MA)
00033
RHODE ISLAND ENERGY - TIVERTON (NEWPORT, RI)
00049
NEW ENGLAND GAS COMPANY WESTPORT (BRISTOL, MA)
00051
SAGAMORE STATION RELOCATION (MAINLAND SAGAMORE)
00064
RHODE ISLAND ENERGY-BARRINGTON (PROVIDENCE, RI)
00071
NEW ENGLAND GAS COMPANY SWANSEA (BRISTOL, MA)
00093
DARTMOUTH POWER (NORFOLK, MA)
00806
CANAL GENERATING
00812
TMPL (BRISTOL, MA)
00813
NATIONAL GRID-ROCHESTER (PLYMOUTH, MA)
00815
DIGHTON POWER LLC BRISTOL MA (BRISTOL, MA)
00816
REVERE POWER (PROVIDENCE, RI)
00821
PINEHILLS METER - (PLYMOUTH, MA)
00824
NEW ENGLAND GAS COMPANY FALL RIVER GAS-NORTH FALL RIVER STA-(BRIST
00829
NATIONAL GRID-SANDWICH (BARNSTABLE, MA)
00839
NSTAR - ASSONET, BRISTOL CO, MA
80003
INTERCONNECT AGT G-10 LAT & CLEARY LATERAL
80004
INTERCONNECT AGT G-SYS BOURNE, MA & CANAL LATERAL
80047
LATERAL G SYSTEM CANAL MAINLINE
80049
LATERAL G SYSTEM CLEARY MAINLINE
80806
G-24 MAINLINE HEAD OF LATERAL
99825
FALL RIVER GAS
00020
MILFORD (WORCESTER, MA)
00021
NATIONAL GRID- NORWOOD (NORFOLK, MA)
00022
WESTWOOD (NORFOLK, MA)
00023
NATIONAL GRID- EAST BRAINTREE (NORFOLK, MA)
00024
BROCKTON (PLYMOUTH, MA)
00025
HOPEDALE (NORFOLK, MA)
00027
NATIONAL GRID- EVERETT (MIDDLESEX, MA)
00028
BROOKFORD ST (MIDDLESEX, MA)
00032
NATIONAL GRID-WALTHAM (MIDDLESEX, MA)
00036
WEST MEDWAY (NORFOLK, MA)
00038
CHARLES RIVER RD (NORFOLK, MA)
00043
ASHLAND (MIDDLESEX, MA)
00052
NATIONAL GRID-PONKAPOAG (NORFOLK, MA)
00057
NATIONAL GRID-WESTON (MIDDLESEX, MA)
00058
CANTON (NORFOLK, MA)
00061
WOODLAND RD (NORFOLK, MA)
00074
NATIONAL GRID-WELLESLEY (NORFOLK, MA)
00080
NATIONAL GRID-POLAROID (MIDDLESEX, MA)
00081
NATIONAL GRID-POTTER ST. (NORFOLK, MA)
00089
NATIONAL GRID-MEDFORD (MIDDLESEX, MA)
00094
BELLINGHAM (NORFOLK, MA)
00206
LINCOLN (MIDDLESEX, MA)
00215
SALEM ESSEX CO., MA (ESSEX, MA)
00230
MARATHON (MIDDLESEX, MA)
00271
EVERETT INT. (MIDDLESEX, MA)
00620
EXCELERATE ENERGY LP - EXCELERATE MS - (ESSEX, MA)
00621
EXCELERATE ENERGY LP - EXCELLENCE MS - (ESSEX, MA)
00622
EXCELERATE ENERGY LP - NE GATEWAY-EXPLORER (ESSEX, MA)
00624
EXCELERATE ENERGY LP - EXQUISITE (ESSEX, MA)
00625
EXCELERATE ENERGY LP - EXPEDIENT (ESSEX, MA)
00626
EXCELERATE ENERGY LP - EXEMPLAR (ESSEX, MA)
00630
SUEZ NEPTUNE LNG - (ESSEX, MA)
00631
SUEZ CAPE ANN, LNG - (ESSEX, MA)
00801
MILFORD POWER
00803
FORE RIVER (NORFOLK, MA)
00814
ANP BELLINGHAM ENERGY COMPANY (NORFOLK, MA)
00823
SHARON STATION- (NORFOLK, MA)
00826
MYSTIC (MIDDLESEX, MA)
00827
NATIONAL GRID-WEYMOUTH (NORFOLK, MA)
00830
MARATHON (MIDDLESEX, MA)
00832
NORFOLK METER STATION (NORFOLK, MA)
00834
BELD - BRAINTREE ELECTRIC LIGHT (NORFOLK, MA)
00837
SALEM HARBOR STATION
00838
NATIONAL GRID - WEST ROXBURY
00844
EXELON/CONSTELLATION ENERGY, NORFOLK CO., MA
01215
SALEM ESSEX CO., MA NORTH (ESSEX, MA)
02630
NEPTUNE LNG - (ESSEX, MA)
80012
LATERAL Y SYSTEM
80013
LATERAL Y SYSTEM MAINLINE
80022
LATERAL T SYSTEM
80023
LATERAL T SYSTEM MAINLINE
80042
Q-1 EXTENSION MAINLINE
80060
G-24 LATERAL HEAD OF LATERAL
80094
J-2 SYSTEM
80095
J-2 SYSTEM MAINLINE
80104
WEST ROXBURY LATERAL
80105
WEST ROXBURY LATERAL (MAINLINE)
80106
SALEM LATERAL (MAINLINE)
80107
SALEM LATERAL
80108
LINCOLN LATERAL (MAINLINE)
80109
LINCOLN LATERAL
88202
INTERCONNECTION BETWEEN NORTHEAST GATEWAY AND HUBLINE MAINLINE
88203
INTERCONNECTION BETWEEN NORTHEAST GATEWAY AND HUBLINE
88271
DISTRIGAS - EVERETT
89847
NORTHEAST GATEWAY DEEP WATER PORT (DWP1)
89848
INTERCONNECT BETWEEN SUEZ NEPTUNE AND HUBLINE
99817
EVERSOURCE GAS COMPANY OF MA
99818
BOS GAS CO D
99822
NSTAR
99837
DISTRIGAS LDC
99855
SALEM LATERAL CUSTODY TRANSFER POINT
99857
EAST BRAINTREE CUSTODY TRANSFER POINT
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
TSP Name: Algonquin Gas Transmission, LLC
Subject: AGT Operational Flow Order -- EFF 9/5
Notice Type: Operational Flow Order
Critical Notice Description: Critical notice
Notice Status Description: Initiate
Notice Effective Date: 09/05/2026
Notice End Date: 12/02/2026
Posting Date: 09/03/2026
Notice Identifier: 182514
Required Response Indicator Description: No response required
Operational Area
Gas Day September 3 - September 4
Gas Day September 5 - September 7
Gas Day September 8 and until further notice
System Wide - All Customers
No OFO*
OFO In Effect: No DS 5% / 500
No Due Pipe Imbalance Warning in Effect
Customer Specific
No OFO*
No OFO*
No OFO*
Hourly Customer Specific
No OFO*
No OFO*
No OFO*
Algonquin Gas Transmission
09/09/2026- AGT Pipeline Conditions for 09/10/2026
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
TSP Name: Algonquin Gas Transmission, LLC
Subject: AGT Pipeline Conditions for 09/10/2026
Notice Type: Capacity Constraint
Critical Notice Description: Critical notice
Notice Status Description: Initiate
Notice Effective Date: 09/10/2026
Notice End Date: 09/11/2026
Posting Date: 09/09/2026
Notice Identifier: 182804
Required Response Indicator Description: No response required
For Gas Day September 10, 2026, Algonquin Gas Transmission (AGT) has approved and scheduled nominations at each pipeline segment and meter station up to AGT's operational capacity. The following locations have been restricted due to requested nominations exceeding AGT's operational capacity:
Restricted Locations
Scheduled and Sealed
Priority % Restricted
Notes
Stony Point
100%
100%
100%
100%
100%
100%
100%
10%
Planned Outage
Cromwell
100%
100%
49%
Burrillville
100%
100%
50%
Weymouth
100%
100%
62%
Iroquois Deliveries
100%
100%
46%
Iroquois Receipts
Yes
Hanover West
Yes
Mendon Receipts
100%
100%
100%
100%
100%
58%
Lincoln Receipts
Yes
Lincoln Deliveries
Yes
G System
100%
100%
16%
C System
Yes
Centerville-Transco Receipts (1)
100%
100%
15%
I-8 West to East
Yes
No-Notice Restrictions
---
OFO / Imbalance Notice
System Wide OFO
---
Customer Specific OFO
---
Meter Specific OFO
---
Customer Specific Hourly OFO
---
Imbalances Warnings
Stay Balanced
FERC Order 698
Yes
Systemwide Notes:
(1) AGT has scheduled Transco Centerville receipts to the design meter capacity of 222,526 Dth/d.
AGT requests that customers/point operators on AGT be aware of the impact non-ratable hourly takes from the system may have in causing delivery pressures reaching lower than desired levels.
AGT's system is not designed to sustain delivery pressures above contract levels while making non-ratable/accelerated deliveries above scheduled quantities for more than 6 consecutive hours, to be followed by flows below scheduled quantity for the balance of any 24-hour period. If customers/point operators don't manage hourly takes from the system, 1) delivery pressures will be impacted and /or 2) AGT may be required to impose further restrictions or courses of action in order to maintain the operational integrity of the system.
AGT may be required to issue system specific, meter specific and/or hourly OFO's pursuant to General Terms and Conditions Section 26.7(d) to impose further restrictions in order to maintain the operational integrity of the system.
Customers are advised that capacity may become available as the nomination and confirmation process continues throughout the day.
Please contact your Operations Account Representative should you have any questions.
Algonquin Gas Transmission
03/19/2026- AGT Hourly Customer Specific Operational Flow Order -- LIFTED EFF 3/20
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
TSP Name: Algonquin Gas Transmission, LLC
Subject: AGT Hourly Customer Specific Operational Flow Order -- LIFTED EFF 3/20
Notice Type: Operational Flow Order
Critical Notice Description: Critical notice
Notice Status Description: Supersede
Notice Effective Date: 03/20/2026
Notice End Date: 06/17/2026
Posting Date: 03/19/2026
Notice Identifier: 175390
Prior Notice Identifier: 175352
Required Response Indicator Description: No response required
Operational Area
Gas Day March 19
Gas Day March 20 and until further notice
System Wide - All Customers
OFO in Effect: No DP 5%/500
No OFO*
Customer Specific
Hourly/System Wide OFO in Effect
No OFO
Hourly Customer Specific
OFO In Effect: No DP Hourly OFO 25% / 250
No OFO
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
TSP Name: Algonquin Gas Transmission, LLC
Subject: AGT Operational Flow Order -- LIFTED
Notice Type: Operational Flow Order
Critical Notice Description: Critical notice
Notice Status Description: Supersede
Notice Effective Date: 03/20/2026
Notice End Date: 06/17/2026
Posting Date: 03/19/2026
Notice Identifier: 175391
Prior Notice Identifier: 175264
Required Response Indicator Description: No response required
Operational Area
Gas Day March 19
Gas Day March 20 and until further notice
System Wide - All Customers
OFO in Effect No DP 5%/500
No OFO*
Customer Specific
Hourly/System Wide OFO in Effect
No OFO*
Hourly Customer Specific Operational Flow Order
OFO In Effect: No DP Hourly OFO 25% / 250
No OFO*
Algonquin Gas Transmission
03/24/2026- AGT Operational Flow Order -- LIFTED EFF 3/25
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
TSP Name: Algonquin Gas Transmission, LLC
Subject: AGT Operational Flow Order -- LIFTED EFF 3/25
Notice Type: Operational Flow Order
Critical Notice Description: Critical notice
Notice Status Description: Supersede
Notice Effective Date: 03/24/2026
Notice End Date: 06/22/2026
Posting Date: 03/24/2026
Notice Identifier: 175605
Prior Notice Identifier: 175399
Required Response Indicator Description: No response required
Operational Area
Gas Day March 24
Gas Day March 25 and until further notice
System Wide - All Customers
OFO in Effect No DP 5%/500
No OFO*
Customer Specific
Hourly/System Wide OFO in Effect
No OFO*
Hourly Customer Specific Operational Flow Order
OFO In Effect: No DP Hourly OFO 25% / 250
No OFO*
Algonquin Gas Transmission
03/24/2026- AGT Hourly Customer Specific Operational Flow Order -- LIFTED
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
TSP Name: Algonquin Gas Transmission, LLC
Subject: AGT Hourly Customer Specific Operational Flow Order -- LIFTED
Notice Type: Operational Flow Order
Critical Notice Description: Critical notice
Notice Status Description: Supersede
Notice Effective Date: 03/24/2026
Notice End Date: 06/22/2026
Posting Date: 03/24/2026
Notice Identifier: 175604
Prior Notice Identifier: 175449
Required Response Indicator Description: No response required
Operational Area
Gas Day March 24
Gas Day March 25 and until further notice
System Wide - All Customers
OFO in Effect: No DP 5%/500
No OFO*
Customer Specific
Hourly/System Wide OFO in Effect
No OFO
Hourly Customer Specific
OFO In Effect: No DP Hourly OFO 25% / 250
No OFO
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
TSP Name: Algonquin Gas Transmission, LLC
Subject: AGT Operational Flow Order -- LIFTED
Notice Type: Operational Flow Order
Critical Notice Description: Critical notice
Notice Status Description: Supersede
Notice Effective Date: 03/29/2026
Notice End Date: 06/27/2026
Posting Date: 03/29/2026
Notice Identifier: 175849
Prior Notice Identifier: 175684
Required Response Indicator Description: No response required
Operational Area
Gas Day March 28
Gas Day March 29 and until further notice
System Wide - All Customers
OFO in Effect No DP 5%/500
No OFO*
Customer Specific
OFO in Effect: No DS 5% / 250
OFO in Effect: No DS 5% / 250
Hourly Customer Specific
No OFO*
No OFO*
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
TSP Name: Algonquin Gas Transmission, LLC
Subject: AGT Operational Flow Order -- LIFTED
Notice Type: Operational Flow Order
Critical Notice Description: Critical notice
Notice Status Description: Supersede
Notice Effective Date: 06/17/2026
Notice End Date: 09/15/2026
Posting Date: 06/17/2026
Notice Identifier: 179305
Prior Notice Identifier: 179077
Required Response Indicator Description: No response required
Operational Area
Gas Day June 17
Gas Day June 18
Gas Day June 19 and until further notice
System Wide - All Customers
No OFO*
No OFO*
No OFO*
Customer Specific
OFO in Effect: No DP 2% / 250
OFO in Effect: No DP 2% / 250
OFO in Effect: No DP 2% / 250
Hourly Customer Specific
No OFO*
No OFO*
No OFO*
Algonquin Gas Transmission
06/17/2026- AGT Customer Specific Operational Flow Order -- LIFTED
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
TSP Name: Algonquin Gas Transmission, LLC
Subject: AGT Customer Specific Operational Flow Order -- LIFTED
Notice Type: Operational Flow Order
Critical Notice Description: Critical notice
Notice Status Description: Supersede
Notice Effective Date: 06/17/2026
Notice End Date: 09/15/2026
Posting Date: 06/17/2026
Notice Identifier: 179306
Prior Notice Identifier: 179075
Required Response Indicator Description: No response required
Operational Area
Gas Day June 16
Gas Day June 17 and until further notice
System Wide - All Customers
No OFO*
No OFO*
Customer Specific
OFO in Effect: No DP 2% / 250
No OFO*
Hourly Customer Specific
No OFO*
No OFO*
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
TSP Name: Algonquin Gas Transmission, LLC
Subject: AGT Operational Flow Order -- LIFTED
Notice Type: Operational Flow Order
Critical Notice Description: Critical notice
Notice Status Description: Supersede
Notice Effective Date: 07/05/2026
Notice End Date: 10/03/2026
Posting Date: 07/05/2026
Notice Identifier: 180021
Prior Notice Identifier: 179764
Required Response Indicator Description: No response required
Operational Area
Gas Day July 4
Gas Day July 5 and until further notice
System Wide - All Customers
OFO In Effect: No DP 2% / 500
No OFO*
Customer Specific
No OFO*
No OFO*
Hourly Customer Specific
No OFO*
No OFO*
Algonquin Gas Transmission
07/08/2026- AGT Customer Specific Operational Flow Order -- LIFTED
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
TSP Name: Algonquin Gas Transmission, LLC
Subject: AGT Customer Specific Operational Flow Order -- LIFTED
Notice Type: Operational Flow Order
Critical Notice Description: Critical notice
Notice Status Description: Supersede
Notice Effective Date: 07/09/2026
Notice End Date: 10/06/2026
Posting Date: 07/08/2026
Notice Identifier: 180139
Prior Notice Identifier: 180093
Required Response Indicator Description: No response required
Operational Area
Gas day July 8
Gas Day July 9 and July 10
Gas Day July 11 and until further Notice
System Wide - All Customers
No OFO*
OFO In Effect: No DP 8% / 500
No OFO*
Customer Specific
OFO In Effect: No DS 5% / 500
No OFO*
No OFO*
Hourly Customer Specific
No OFO*
No OFO*
No OFO*
Algonquin Gas Transmission
07/13/2026- AGT Operational Flow Order -- EFF 7/14
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
TSP Name: Algonquin Gas Transmission, LLC
Subject: AGT Operational Flow Order -- EFF 7/14
Notice Type: Operational Flow Order
Critical Notice Description: Critical notice
Notice Status Description: Initiate
Notice Effective Date: 07/14/2026
Notice End Date: 10/11/2026
Posting Date: 07/13/2026
Notice Identifier: 180383
Required Response Indicator Description: No response required
Operational Area
Gas day July 13
Gas Day July 14 and until further Notice
System Wide - All Customers
No OFO*
OFO In Effect: No DP 5% / 500
Customer Specific
No OFO*
No OFO*
Hourly Customer Specific
No OFO*
No OFO*
Algonquin Gas Transmission
07/16/2026- AGT Operational Flow Order -- LIFTED -- EFF 7/14
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
TSP Name: Algonquin Gas Transmission, LLC
Subject: AGT Operational Flow Order -- LIFTED -- EFF 7/14
Notice Type: Operational Flow Order
Critical Notice Description: Critical notice
Notice Status Description: Supersede
Notice Effective Date: 07/17/2026
Notice End Date: 10/14/2026
Posting Date: 07/16/2026
Notice Identifier: 180500
Prior Notice Identifier: 180383
Required Response Indicator Description: No response required
Operational Area
Gas Day July 16
Gas Day July 17 and until further notice
System Wide - All Customers
OFO in Effect: No DP 5% / 500
No OFO*
Customer Specific
No OFO*
No OFO*
Hourly Customer Specific
No OFO*
No OFO*
Algonquin Gas Transmission
08/03/2026- AGT Customer Specific Operational Flow Order -- LIFTED
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
TSP Name: Algonquin Gas Transmission, LLC
Subject: AGT Customer Specific Operational Flow Order -- LIFTED
Notice Type: Operational Flow Order
Critical Notice Description: Critical notice
Notice Status Description: Supersede
Notice Effective Date: 08/03/2026
Notice End Date: 11/01/2026
Posting Date: 08/03/2026
Notice Identifier: 181181
Prior Notice Identifier: 180651
Required Response Indicator Description: No response required
Operational Area
Gas day August 2
Gas Day August 3
System Wide - All Customers
No OFO*
No OFO*
Customer Specific
OFO In Effect: No DS 2% / 100
No OFO*
Hourly Customer Specific
No OFO*
No OFO*
Algonquin Gas Transmission
08/07/2026- TE Hanover Compressor Station Maintenance -- COMPLETE
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
TSP Name: Algonquin Gas Transmission, LLC
Subject: TE Hanover Compressor Station Maintenance -- COMPLETE
Notice Type: Capacity Constraint
Critical Notice Description: Critical notice
Notice Status Description: Initiate
Notice Effective Date: 08/07/2026
Notice End Date: 11/05/2026
Posting Date: 08/07/2026
Notice Identifier: 181434
Required Response Indicator Description: No response required
Notice Text:
Algonquin has been informed by Texas Eastern (TE), that TE has completed the previously posted Hanover compressor station outage ahead of schedule and the station has been returned to normal operations.
Effective immediately all restrictions associated with this outage have been lifted.
Please contact your Operations Account Representative if you have any questions.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
TSP Name: Algonquin Gas Transmission, LLC
Subject: AGT Operational Flow Order -- LIFTED
Notice Type: Operational Flow Order
Critical Notice Description: Critical notice
Notice Status Description: Supersede
Notice Effective Date: 08/12/2026
Notice End Date: 11/10/2026
Posting Date: 08/12/2026
Notice Identifier: 181632
Prior Notice Identifier: 181418
Required Response Indicator Description: No response required
Operational Area
Gas Day August 12 and until further notice
System Wide - All Customers
No OFO*
Customer Specific
No OFO*
Hourly Customer Specific
No OFO*
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
TSP Name: Algonquin Gas Transmission, LLC
Subject: Burrillville to EOLN Mainline Valve Section 5 - 7 detailed investigations -- COMPLETE
Notice Type: Capacity Constraint
Critical Notice Description: Critical notice
Notice Status Description: Initiate
Notice Effective Date: 08/12/2026
Notice End Date: 11/10/2026
Posting Date: 08/12/2026
Notice Identifier: 181639
Required Response Indicator Description: No response required
Notice Text:
Algonquin Gas Transmission has completed the previously posted Burrillville to EOLN Mainline Valve Section 5 - 7 detailed investigations and the line has returned to normal operations.
Effective immediately all restrictions associated with this outage have been lifted.
Please contact your Operations Account Representative if you have any questions.
Algonquin Gas Transmission
08/12/2026- AGT Customer Specific Operational Flow Order -- LIFTED
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
TSP Name: Algonquin Gas Transmission, LLC
Subject: AGT Customer Specific Operational Flow Order -- LIFTED
Notice Type: Operational Flow Order
Critical Notice Description: Critical notice
Notice Status Description: Supersede
Notice Effective Date: 08/12/2026
Notice End Date: 11/10/2026
Posting Date: 08/12/2026
Notice Identifier: 181633
Prior Notice Identifier: 180651
Required Response Indicator Description: No response required
Operational Area
Gas Day August 12 and until further notice
System Wide - All Customers
No OFO*
Customer Specific
No OFO*
Hourly Customer Specific
No OFO*
Algonquin Gas Transmission
08/20/2026- AGT Operational Flow Order -- EFF 8/22
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
TSP Name: Algonquin Gas Transmission, LLC
Subject: AGT Operational Flow Order -- EFF 8/22
Notice Type: Operational Flow Order
Critical Notice Description: Critical notice
Notice Status Description: Initiate
Notice Effective Date: 08/22/2026
Notice End Date: 08/24/2026
Posting Date: 08/20/2026
Notice Identifier: 181954
Required Response Indicator Description: No response required
Operational Area
Gas Day August 20 - August 21
Gas day August 22 - August 23
Gas Day August 24 and until further Notice
System Wide - All Customers
No OFO*
OFO In Effect: No DS 5% / 500
No OFO*
Customer Specific
No OFO*
No OFO*
No OFO*
Hourly Customer Specific
No OFO*
No OFO*
No OFO*
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
TSP Name: Algonquin Gas Transmission, LLC
Subject: E-1 Sec 2 VS-05 Detailed Investigation -- COMPLETE
Notice Type: Capacity Constraint
Critical Notice Description: Critical notice
Notice Status Description: Initiate
Notice Effective Date: 08/22/2026
Notice End Date: 11/20/2026
Posting Date: 08/22/2026
Notice Identifier: 182037
Required Response Indicator Description: No response required
Notice Text:
Algonquin Gas Transmission (AGT) has completed the previously posted E-1 Sec 2 VS-05 detailed investigations and the line has returned to normal operations.
Effective immediately, all restrictions associated with this outage have been lifted.
Please contact your Operations Account Representative if you have any questions.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
TSP Name: Algonquin Gas Transmission, LLC
Subject: J-1 Sec 2 VS-08 Detailed Investigation -- COMPLETE
Notice Type: Capacity Constraint
Critical Notice Description: Critical notice
Notice Status Description: Initiate
Notice Effective Date: 08/22/2026
Notice End Date: 11/20/2026
Posting Date: 08/22/2026
Notice Identifier: 182065
Required Response Indicator Description: No response required
Notice Text:
Algonquin Gas Transmission (AGT) has completed the previously posted J-1 Sec 2 VS-08 detailed investigations and the line has returned to normal operations.
Effective immediately, all restrictions associated with this outage have been lifted.
Please contact your Operations Account Representative if you have any questions.
Algonquin Gas Transmission
08/31/2026- AGT Operational Flow Order --Lifted -- EFF 9/1
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
TSP Name: Algonquin Gas Transmission, LLC
Subject: AGT Operational Flow Order --Lifted -- EFF 9/1
Notice Type: Operational Flow Order
Critical Notice Description: Critical notice
Notice Status Description: Supersede
Notice Effective Date: 09/01/2026
Notice End Date: 11/29/2026
Posting Date: 08/31/2026
Notice Identifier: 182377
Prior Notice Identifier: 182100
Required Response Indicator Description: No response required
Operational Area
Gas Day August 31
Gas Day September 1 and until further notice
System Wide - All Customers
OFO In Effect : No DS 6% / 500
No OFO*
Customer Specific
No OFO*
No OFO*
Hourly Customer Specific
No OFO*
No OFO*
Algonquin Gas Transmission
09/01/2026- Hanover to Stoney Point Line 30B Valve Section 6 Investigation -- COMPLETE
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
TSP Name: Algonquin Gas Transmission, LLC
Subject: Hanover to Stoney Point Line 30B Valve Section 6 Investigation -- COMPLETE
Notice Type: Capacity Constraint
Critical Notice Description: Critical notice
Notice Status Description: Initiate
Notice Effective Date: 09/01/2026
Notice End Date: 11/30/2026
Posting Date: 09/01/2026
Notice Identifier: 182430
Required Response Indicator Description: No response required
Notice Text:
Algonquin Gas Transmission (AGT) has completed the previously posted HANA-STON L30 VS-06 detailed investigation and the line has returned to normal operations.
Effective immediately, all restrictions associated with this outage have been lifted.
Please contact your Operations Account Representative if you have any questions.
