Summary
Gas Transmission Northwest (GTN) is restricting capacity at Flow Past Kingsgate (Loc #3500) from 8/21 to 8/28 to protect pipeline integrity, limiting available capacity to 1.796 Bcf/d for eight days. GTN explicitly warns that Firm Primary, Firm Secondary, and Interruptible curtailments are anticipated, triggering the Reservation Charge Crediting Mechanism. This is a critical, planned maintenance event with confirmed multi-tier curtailment exposure.
Trading note
GTN restricts Flow Past Kingsgate to 1.796 Bcf/d through 8/28, with Firm Primary curtailments explicitly anticipated; GTN Kingsgate basis was most recently -1.790 vs Henry Hub on 2026-08-19 (5-day average -1.638) and is likely to tighten sharply as the constraint squeezes Western Canada/PNW import flow, with bullish pressure at Stanfield, Sumas, and PG&E Malin.
Reroute potential
Limited: Northwest Pipeline (NWP) provides some Pacific Northwest market access but does not replicate Kingsgate border crossing volumes; Ruby Pipeline offers a Rockies-origin westbound alternative for California but cannot replace Western Canada supply flowing via GTN-Kingsgate. Full reroute offset is unlikely given the multi-tier curtailment language.
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View original notice text (as posted by Gas Transmission Northwest)
TSP Name: Gas Transmission Northwest LLC
Notice ID: 1620
TSP: 006912885
Notice Type: Maint
Notice Status: Initiate
Posting Date/Time: 08/20/2026 09:25
Notice Eff Date: 08/21/2026
Notice Eff Time: 09:00
Notice End Date: 08/29/2026
Notice End Time: 09:00
Critical: Yes
Required Response: No response required
Subject: CAPACITY REDUCTION: GTN – Flow Past Kingsgate (Posted: 8/20/26)
Message Text:
Gas Transmission Northwest (GTN) is restricting capacity at Flow Past Kingsgate to protect pipeline integrity. As a result, capacity will be reduced as follows: 8/21 – 8/28 Flow Past Kingsgate (LOC #3500): Available Capacity is 1,796 MMcf/d GTN anticipates this posting may result in Firm Primary, Firm Secondary and Interruptible curtailments. The Reservation Charge Crediting Mechanism of Section 5.1.3.10 shall apply to this outage. Please direct any questions to your Account Coordinator, Customer Service Representative, or the Nominations and Scheduling hotline @ 888-750-6275.
