Yankee Gas - TGP OFO Lifted Effective Gas Day 5/12/2026

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

Eversource Gas Supply
EEGasTrading&Scheduling@eversource.com

OFO DAILY CRITICAL DAY 1 DOWNGRADED EFFECTIVE 5-12-2026

Due to forecasted seasonal weather moving across parts of the Northeast, in order to protect the operational integrity of its system, effective for the Gas Day ("GD") of Tuesday, May 12, 2026, Tennessee Gas Pipeline Company, L.L.C. ("Tennessee") is DOWNGRADING the current 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 5-11-2026	GD 5-12-26 until further notice
Zone 0	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	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	Critical Day 1 800 Line Excluding Muskrat and 500 Line (Excluding Segments 509, 515, 516, 523, 524,526) (Excluding 500 Line Segments 527, 529, 530) · Receipts do not overdeliver · Deliveries do not undertake	Critical Day 1 800 Line Excluding Muskrat and 500 Line (Excluding Segments 509, 515, 516, 523, 524,526) (Excluding 500 Line Segments 527, 529, 530) · Receipts do not overdeliver · Deliveries do not undertake
Zone 1	Critical Day 1 All 100 Line All 800 Line 500 Line (Excluding 500 Line Segment 534, 539, 542) · Receipts do not overdeliver · Deliveries do not undertake	Critical Day 1 All 100 Line All 800 Line 500 Line (Excluding 500 Line Segment 534, 539, 542) · Receipts do not overdeliver · Deliveries do not undertake
Zone 2	Critical Day 1 All Areas · Receipts do not overdeliver · Deliveries do not undertake	Critical Day 1 All Areas · Receipts do not overdeliver · Deliveries do not undertake
Zone 3	Critical Day 1 All Areas · Receipts do not overdeliver · Deliveries do not undertake	Critical Day 1 All Areas · Receipts do not overdeliver · Deliveries do not undertake
Zone 4	Critical Day 1 All Areas · Receipts do not overdeliver · Deliveries do not undertake	Critical Day 1 All areas South of STA 219 Only · Receipts do not overdeliver · Deliveries do not undertake
Zone 5	Critical Day 1 All Areas · Receipts do not overdeliver · Deliveries do not undertake	No OFO
Zone 6	Critical Day 1 All Areas · Receipts do not overdeliver · Deliveries do not undertake	No OFO

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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