Notice

OFO ALERT: Yankee Gas Critical Day declared aggravated by over-delivery effective gas day 6/10/2026 until further notice on IGTS - DO NOT LEAVE

Note:

· DO NOT Leave more than 0% and, DO NOT Take more than 10%
· Any related penalties due to noncompliance will be calculated in accordance with penalty provisions of Rate TRS and Rider BAL
· Yankee Gas has the right to reject intra-day nominations and implement additional tolerance tightening at any time.
· Per our tariff, Yankee Gas will not accept retroactive nominations on any day in which Yankee Gas has an OFO in effect.

From: infopost@iroquois.com <infopost@iroquois.com>
Sent: Tuesday, June 9, 2026 10:30 AM
Subject: Critical, Operational Flow Order, 6/10/2026 9:00:00 AM, Iroquois Gas Transmission System, L.P., 603955949
Importance: High

Operational Flow Order (OFO) – Balanced Actual Deliveries

Affected Area
System-wide (all points).

Affected Parties
All point operators and shippers.

Reason for OFO
To maintain system operational integrity under high linepack conditions, Iroquois is issuing this Operational Flow Order (OFO) to all affected parties.

Required Actions
During the duration of this OFO, all parties must ensure that actual gas deliveries out of the system are equal to or greater than their scheduled deliveries.

Shippers are expected to actively monitor their positions throughout the gas day and take any necessary corrective actions to remain in balance. Failure to comply with these requirements may result in further action by the pipeline.

Iroquois also reminds all operators and agents of directly connected power plants of the requirements outlined in FERC Order 698. All directly connected power plant operators must submit burn profiles and nominations prior to gas flow. Operational flexibility is limited; therefore, operators are strongly encouraged to maintain ratable burn rates consistent with scheduled volumes.

Additional Information
This OFO will remain in effect until further notice. A termination notice will be issued once system conditions improve and high linepack conditions are resolved.

For questions or additional information, please contact your account representative or Gas Control.

End date Until Further Notice

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