EGT Critical Notices
TSP: 872670161
TSP Name: ENABLE GAS TRANSMISSION, LLC
Critical Notice Description: Critical notice
Notice Effective Date: 04/08/2025
Notice Effective Time: 09:00
Notice End Date: 04/25/2025
Notice End Time: 09:00
Notice Identifier: 5935
Notice Status Description: Initiate
Notice Type: Maintenance
Posting Date/Time: 02/13/2025 13:16
Required Response Indicator Description: No response required
Response Date:
Response Time:
Subject: LINE AD PIGGING
Notice Text:
This Operational Alert is being issued pursuant to Section 20, GT&C, of EGT s Tariff to notify shippers of
upcoming planned cleaning pig maintenance on EGT s Line AD System located in EGT s West 1, West 2,
and Flex pooling areas as part of EGT s integrity management plan.
In order to ensure safe and efficient pigging operations, EGT will be taking the following actions on April 8th,
10th, 22nd, 23rd, and 24th, 2025:
* EGT will be reducing the balancing tolerance from 1,000 dth to 500 dth.
* EGT will be locking all nominations in the impacted area during the Evening Cycle of each impacted
day.
* EGT will balance receipt and delivery quantities during the Timely Cycle.
The following is a day-to-day breakdown on the impacts of each leg of the cleaning pig run.
April 8th, 2025 - Line AD Sayre to Arapaho
The maximum capacity through EGT s Custer Compressor Station will be limited to approximately 245,000
dth.
Due to operational requirements at the beginning of Line AD, in order to launch and maintain proper pig
speed, the following meters will be prioritized and scheduled up to 125,000 dth:
* Oneok WesTex Summary Re (MP# 805222)
* Midcoast IC 8 Inch (MP# 301999)
Impacted points include, but are not limited to, the following meters which may be scheduled between
approximately 50%-60% of MRO quantity:
* EGG McClure IC (MP# 301104)
* MarkWest Buffalo Creek Pl (MP# 730040)
* MarkWest Arapaho Plant (MP# 810010)
* Oneok @ Panther Creek (MP# 2078)
* Oneok @ Custer Co Rct (MP# 2019)
April 10th, 2025 - Line AD Arapaho to Amber Compressor Station
During this leg of the pig run, the maximum capacity through EGT s Custer Compressor Station will be
limited to approximately 130,000 dth in order to launch and maintain proper pig speed.
Impacted points include, but are not limited to the following meters which may be scheduled to
approximately 35%-50% of MRO quantity:
* Oneok WesTex Summary Re (MP# 805222)
* Midcoast IC 8 Inch (MP# 301999)
* EGG McClure IC (MP# 301104)
* MarkWest Buffalo Creek Pl (MP# 730040)
* MarkWest Arapaho Plant (MP# 810010)
* Oneok @ Panther Creek (MP# 2078)
* Oneok @ Custer Co Rct (MP# 2019)
April 22nd and April 24th, 2025 - Line AD Amber Compressor Station to Ada Storage Facility
During this leg of the pig run, the maximum capacity through EGT s Amber Compressor Station will be
345,000 dth. All receipt points west of the Amber Compressor Station will be subject to reductions and
may be scheduled to approximately 75%-85% of MRO quantity.
Furthermore, all points between EGT s Amber Compressor Station and EGT s Byars Lake Compressor
Station will be subject to reductions due to a capacity constraint of approximately 650,000 dth through
EGT s Byars Lake Compressor Station. Impacted points include, but are not limited to, the following
meters which may be scheduled to approximately 80%-90% of MRO quantity:
* Iron Horse Rec (MP# 290209)
* Bradley Plant IC (MP# 808775)
* WEX IC (MP# 303077)
* EOIT L760 to Line AD Re (MP# 290575)
April 23rd, 2025 - Line AD Ada Storage Facility to Chandler Compressor Station
All meters west of EGT s Byars Lake Compressor Station will be limited to approximately 650,000 dth in the
aggregate.
Based on current nominations, EGT anticipates impacts to all its services, including primary firm, which
may be scheduled to approximately 80%-90% of MRO quantity.
During the dates of the pig runs, shippers whose receipts are in the West 1, West 2 and Flex Pooling areas
should nominate point to point from their primary receipt point to maintain the highest priority level of
service. During this maintenance, shippers should maintain actual receipts and deliveries commensurate
with scheduled volumes. EGT will continue to monitor the pipeline s pressure and imbalances and will, if
necessary, take further actions including the issuance of one or more Operational Flow Orders (OFO).
Shippers whose receipts exceed their applicable scheduled volumes may be subject to additional fees,
charges and/or penalties including, but not limited to, Excess Contract Quantities charges pursuant to
EGT s Tariff.
The volumes required to achieve an optimal pig speed may vary based on the operating conditions on the
day of the run. Should the details of this notice change, EGT will notify its shippers by updating this
posting. EGT will schedule nominations to the available capacity on each impacted day in accordance
with its Tariff.
If you have any questions concerning this alert, please contact your Scheduling Representative.
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