Northwest Pipeline LLC NOTICE #32381 Underrun Entitlement Warning posted on Sep 15 2025 9:16AM TSP Name: Northwest Pipeline LLC TSP: 67977322 Critical: Y Notice Stat Desc: INITIATE Notice Type Desc: PIPELINE CONDITIONS Post D/T: 09/15/2025 9:16 AM MCT Notice Eff D/T: 09/15/2025 9:16 AM MCT Notice End D/T: Reqrd Rsp Desc: No response required Rsp D/T: Notice ID: 25-148 Prior Notice: Subject: Underrun Entitlement Warning Notice Text:

Northwest has limited balancing flexibility with the ongoing

unplanned maintenance at Chehalis and Jackson Prairie filling as

expected. These factors severely limit Northwest’s ability

to absorb banked gas on the system. Northwest is issuing an

Underrun Entitlement warning and urge shippers to balance their

supply and demand needs.

As a reminder and pursuant to Section 14.6(c) of its Tariff,

customer-specific entitlements may be issued to Receiving

Parties that:

1) have contributed to the adverse operating conditions for

at least two consecutive days; and

2) whose actual measured deliveries have deviated from

scheduled deliveries for the previous Gas Day by the greater of

10,000 Dth or 5 percent.

Please remain diligent in managing supply and demand and avoid

banking the system. On system balancing on Northwest’s

Electronic Bulletin Board is currently designated as “No” for all

areas.

If you have any questions, please call your Commercial Services

Representative or the hotline at 713-215-6301.