Notice

OFO ALERT: Yankee Gas Critical Day declared aggravated by over-delivery effective gas day 6/20/2026 until further notice on TGP - DO NOT LEAVE

Note:

· DO NOT Leave more than 2% 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.

For your information only, Pipeline communications are copied in below:

Eversource Gas Supply

EEGasTrading&Scheduling@eversource.com

From: TGP@kindermorgan.com <TGP@kindermorgan.com>
Sent: Thursday, June 18, 2026 9:31 AM
To: TGP@kindermorgan.com
Subject: Critical,OPERATIONAL FLOW ORDER/OFO,20260618,TGP,1939164

OFO DAILY CRITICAL DAY 1 EFFECTIVE 6-20-2026

Due to forecasted milder weather with associated lesser demand moving across more areas of the system, in order to protect the operational integrity of its system, effective for the Gas Day ("GD") of Saturday, June 20, 2026, Tennessee Gas Pipeline Company, L.L.C. ("Tennessee") is implementing an OFO Daily Critical Day ("CD") 1 pursuant to Article X of the General Terms and Conditions of Tennessee's FERC NGA Gas Tariff.

This OFO will be effective for all LMS-PA, SA contracts acting as balancing parties and LMS-MA Balancing Parties only.

Please refer to the table below for the affected areas and dates, and the actions required:

Zone	GD 6-19-2026	GD 6-20-26 until further notice
Zone 0	No OFO	Critical Day 1 All Areas Excluding South of STA 1 (Excluding Segments 406, 409, 410, 490, 491, 492) · Receipts do not overdeliver · Deliveries do not undertake
Zone L	No OFO	Critical Day 1 800 Line Excluding Muskrat and 500 Line Segments (Excluding Muskrat Segments 509, 515, 516, 523, 524) (Excluding 500 Line Segments 526, 527, 529, 530) · Receipts do not overdeliver · Deliveries do not undertake ·
Zone 1	No OFO	Critical Day 1 All 100 Line All 800 Line 500 Line (Excluding 500 Line Segments 534, 539) · Receipts do not overdeliver · Deliveries do not undertake
Zone 2	No OFO	Critical Day 1 All Areas · Receipts do not overdeliver · Deliveries do not undertake
Zone 3	No OFO	Critical Day 1 All Areas · Receipts do not overdeliver · Deliveries do not undertake
Zone 4	No OFO	Critical Day 1 All Areas · Receipts do not overdeliver · Deliveries do not undertake
Zone 5	No OFO	Critical Day 1 All Areas · Receipts do not overdeliver · Deliveries do not undertake
Zone 6	No OFO	Critical Day 1 All Areas · Receipts do not overdeliver · Deliveries do not undertake

CD 1 PENALTY: $5.00 + applicable Regional Daily Spot Price per Dth for quantities in excess of the tolerance
CD 1 TOLERANCE: Greater of 2% of scheduled quantities or 500 Dth

Balancing between OBA points in separate pipeline regions or across meters not located in the OFO area will not be permitted.

In the event this OFO is not sufficient to maintain the operational integrity of its system, Tennessee may escalate to calling a Critical Day II, a Balancing Alert, Meter Specific OFO(s) or Hourly OFO(s), or taking any other actions that may be permitted or required by Tennessee's Tariff.

Please contact your Scheduling Representative if you have any questions.

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