Enercast

CAPACITY REDUCTION - Southeast Area – Lake Arthur Southbound

SEV 4/5Maintenance0.728 Bcf/d3 days
Summary
ANR Pipeline has planned maintenance at Mermentau Compressor Station in Jefferson Parish, Louisiana, reducing Lake Arthur Southbound (LOC #FPLKARSB) capacity by 0.728 Bcf/d from approximately 1.078 Bcf/d to 0.350 Bcf/d during September 22-24 (3 days). ANR explicitly warns this will likely cause curtailments to Firm Primary (estimated 65-67% based on current nominations/contracted MDQ), Firm Secondary, and Interruptible service, triggering reservation charge credit provisions.
Trading note
ANR Mermentau CS maintenance removes 0.728 Bcf/d of Lake Arthur Southbound capacity (leaving only 0.350 Bcf/d) Sept 22-24, with 65-67% Firm Primary curtailments expected; live capacity data shows FPLKARSB already running at 93.2% utilization with only 0.078 Bcf/d headroom, confirming the segment is tight pre-event and leaving virtually no buffer to absorb the restriction -- expect significant widening of ANR, La. basis and upward pressure on Midwest/Michigan delivery prices.
Reroute potential
Moderate: Texas Eastern (TETCO), Columbia Gulf (CGT), and Trunkline (TGC) serve overlapping Gulf Coast northbound corridors and could absorb some displaced volumes, but the scale of firm curtailments (65-67% of primary firm) suggests these alternatives will face strong incremental demand and may lack sufficient spare capacity to fully offset the loss.

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View original notice text (as posted by ANR Pipeline (TC Energy))
TSP Name ANR Pipeline Company
TSP 006958581
Notice Type Description: Planned Service Outage

Notice Stat Desc: Initiate

Prior Notice: 

Critical: Y

Reqrd Rsp Desc: No Response Required
Post

Notice Effective

Notice End



Response
Post Date: 08/21/26

08/21/26

09/25/26
Subject: Subject: CAPACITY REDUCTION - Southeast Area – Lake Arthur Southbound
Author: Author: T0001375
Notice Text
ANR has planned maintenance at the Mermentau Compressor Station in the Southeast Area located in Jefferson Parish, Louisiana.  As a result, capacity will be reduced as follows:

 

9/22 – 9/24 Lake Arthur Southbound (LOC #FPLKARSB) 728 MMcf/d (leaving 350 MMcf/d)

 

ANR anticipates this posting may result in Firm Primary, Firm Secondary and Interruptible curtailments. Estimated impact to Firm Primary as follows:

                 65% - Based on the Current Net Shipper Nominations

                 67% - Based on the Current Contracted MDQ

 

Any reservation charge credits (RCCs) will be determined per the process set forth in the General Terms and Conditions, Section 6.36 of ANR’s FERC Gas Tariff (“Tariff”).  However, ANR will only issue RCCs if ANR is unable to schedule or deliver primary firm nominated capacity as a result of the outage.  In the event RCCs are issued as set forth in the Tariff, shippers will receive RCCs based on its 7-day Non-Force Majeure Average Usage Quantity, as defined in Section 6.36.2 of ANR’s Tariff, less any scheduled quantities on the contract.  By means of this notice, ANR is establishing which specific Gas Days will be included when determining a shipper’s 7-day Non-Force Majeure Average Usage Quantity pursuant to Section 6.36.2(b) of the Tariff.

 

 

Please direct any questions to your Account Coordinator, Customer Service Representative, or the Nominations and Scheduling hotline @ 800-827-5267
ID: ANR-26155025  |  Rev. 1  |  Posted: 2026-08-21 17:57  |  Direction: Bullish All ANR Pipeline (TC Energy) notices  ·  page generated 2026-09-26 06:43 UTC