Venice Meter Station Maintenance (595), August 18 – September 24, 2026
SEV 4/5
Maintenance0.164 Bcf/d38 Days
CGT has notified customers that Venice Meter Station (DMS-VENICE PLANT, loc 595) will be reduced to zero total receipt capacity beginning August 18, 2026 through September 24, 2026 -- a 38-day window. Design capacity at this point is 163,500 Dth/d (0.164 Bcf/d). CGT explicitly warns that curtailments to Interruptible, Secondary Firm, AND Primary Firm services are anticipated, which is a significant escalation beyond typical maintenance language.
CGT maintenance zeros out 0.164 Bcf/d at DMS-VENICE PLANT for 38 days starting Aug 18, with explicit primary firm curtailment risk declared -- capacity data confirms the point was running at 0.127 Bcf/d scheduled (77.9% utilized) on Aug 11, consistent with near-full utilization prior to the outage; expect modest bullish pressure at Henry Hub and Transco Zone 4, with Columbia Gulf mainline basis (most recently -0.300 vs HH on 2026-08-10, five-day average -0.296) at risk of widening as Gulf Coast receipt supply tightens.
Reroute: Moderate: CGT interconnects with TETCO, ANR, and Trunkline (TGC) in the Gulf Coast/Louisiana corridor, and some volumes may reroute onto those systems; however, the explicit primary firm curtailment warning and the system's already-tight mainline segments (ClemSEG at 99.6%, East Lateral at 98.8%, East Lateral 300 SEG at 99.9% utilization) suggest limited spare capacity exists on CGT itself to absorb displaced volumes.
View original notice text
TSP Name Columbia Gulf Transmission, LLC
TSP 007854581
Notice Type Description: Maintenance
Notice Stat Desc: Initiate
Prior Notice:
Critical: Y
Reqrd Rsp Desc: No Response Required
Post
Notice Effective
Notice End
Response
Post Date: 08/11/26
08/11/26
09/11/26
Subject: Subject: Venice Meter Station Maintenance (595), August 18 – September 24, 2026
Author: Author: Dillon Schoolcraft
Notice Text
Columbia Gulf Transmission, LLC (CGT) reminds customers of upcoming maintenance on Venice Meter Station beginning Tuesday, August 18, 2026, through Thursday, September 24, 2026. As a result, the receipt capacity at DMS-VENICE PLANT (595) will be reduced to Zero Total Capacity effective Timely Cycle for Gas Day August 18, 2026.
CGT anticipates this restriction may result in curtailments to Interruptible, Secondary Firm, and Primary Firm services. Please see the details provided below for more information.
595
· Estimated Capacity Setting: 0
· Design Capacity: 163,500 Dth
· Posted Percentage: 0%
Reservation Charge Credits (RCCs) will be determined per the process set forth in the General Terms and Conditions, Section 40 of CGT’s FERC Gas Tariff (Tariff). By means of this notice, CGT is establishing the 7-day Average Usage Quantity to be the period of August 4-10, 2026, pursuant to the provisions in the Tariff.
Please contact your Customer Services Representative with any questions.
Columbia Gulf Transmission (CGT)
REVISED CAPACITY POSTING - TIM for August 14, 2026
SEV 4/5
Force Majeure2.350 Bcf/dUntil Further Notice
CGT declares a Critical capacity constraint notice for August 14, 2026 reflecting an active force majeure at Corinth Compressor Station Unit 505 originally declared June 19, 2026, with no restoration date provided. CorinSEG is capped at 2.350 Bcf/d on the backhaul (net backhaul), and InvrnSEG is capped at 2.325 Bcf/d. A single point change from the prior posting restricts MidWestern Pipeline deliveries (Loc 4197) to 50,000 Dth/d effective ID1 for 8/13/2026. Due Shipper service is not available, indicating system tightness; no OFO has been declared.
Active CGT force majeure limits CorinSEG backhaul to 2.350 Bcf/d and InvrnSEG to 2.325 Bcf/d on an unresolved 'until further notice' basis since June 19; Columbia Gulf mainline basis was -0.300 as of 2026-08-12 (5-day average -0.278 vs Henry Hub), and continued force majeure with no restoration timeline supports widening of Southeast delivery basis at Transco Zone 4 and TETCO M3 versus CGT mainline as northbound backhaul capacity remains constrained.
Reroute: Moderate: Texas Eastern (TETCO) and Trunkline (TGC) serve overlapping Gulf Coast northbound corridors and can absorb some volumes, but both are fully subscribed segments of a tight Gulf Coast system; the multi-month duration of this force majeure means alternative paths are likely already being utilized, limiting incremental reroute relief.
View original notice text
TSP Name Columbia Gulf Transmission, LLC
TSP 007854581
Notice Type Description: Capacity Constraint
Notice Stat Desc: Supersede
Prior Notice: 26145008
Critical: Y
Reqrd Rsp Desc: No Response Required
Post
Notice Effective
Notice End
Response
Post Date: 08/13/26
08/13/26
09/13/26
Subject: Subject: REVISED CAPACITY POSTING - TIM for August 14, 2026
Author: Author: John Whited
Notice Text
COLUMBIA GULF TRANSMISSION, LLC DAILY CAPACITY POSTING
Columbia Gulf Transmission LLC (CGT) posts projections of anticipated restrictions at least 24 hours prior to the time when nominations are due. These advance forecasts are subject to change based on actual operating conditions. Customers should submit nominations for Timely Cycle to determine whether the service is available under current conditions.
***Only change to below: * 4197 - MidWestern Pipeline (Deliveries) - * 50,000 (eff. ID1 for 8/13/2026)
============================================================================
============================================================================
FORCE MAJEURE / OFO
A Force Majeure was declared effective June 19, 2026, at Corinth Compressor Station Unit 505. Please see UPDATED Critical Notice ID 26092010 posted on June 30, 2026, for details.
No Operational Flow Order (OFO) is necessary.
============================================================================
============================================================================
Customers are encouraged to monitor scheduled volumes on the Operationally Available Capacity (OAC) screen on Navigates Informational Postings, as nominations may fluctuate based on market conditions.
============================================================================
============================================================================
----------------------------------------------------------------------------
INTERNAL CONSTRAINTS-- Total Capacity (Net Backhaul):
----------------------------------------------------------------------------
StanSEG - Total Capacity
* ClemSEG – * Total Capacity (effective Intraday-1 Cycle, 08-13-2026)
HartSEG – Total Capacity
HampSEG - Total Capacity
CorinSEG - 2,350,000
BannSEG - Total Capacity
InvrnSEG – 2,325,000
ShelSEG - Total Capacity
DelhiSEG - Total Capacity
AlexSEG - Total Capacity
RayneSEG - Total Capacity
WLSEG - Total Capacity
ELSEG - Total Capacity
EL300SEG - Total Capacity
HoumaSEG - Total Capacity
----------------------------------------------------------------------------
INTERNAL CONSTRAINTS-- Total Capacity (Net Forwardhaul):
----------------------------------------------------------------------------
StanSEG - Total Capacity
ClemSEG – Total Capacity
HartSEG - Total Capacity
HampSEG - Total Capacity
CorinSEG - Total Capacity
BannSEG - Total Capacity
InvrnSEG – Total Capacity
ShelSEG - Total Capacity
DelhiSEG - Total Capacity
AlexSEG - Total Capacity
RayneSEG - Total Capacity
WLSEG - Total Capacity
ELSEG - Total Capacity
EL300SEG - Total Capacity
HoumaSEG - Total Capacity
----------------------------------------------------------------------------
POINT CONSTRAINTS -- Total Capacity:
----------------------------------------------------------------------------
Note: Points listed are controlled by less than meter capacity.
401 - CROSSTEX-GIBSON - 0
445 - TRANSCO / TERREBONNE - 0
481 - SEA ROBIN-ERATH - 0
3194 - TETCO ADAIR CO., KY (Receipts) - Total Capacity (Primary Only)
4051 - LAFAYETTE - ACADIA - Total Capacity (Primary Only)
4078 - SONAT-SHADYSIDE - Total Capacity (Primary Only)
4098 - BURLINGTON - TERREBONNE - 0
4118 - FLORIDA GAS - Total Capacity (Primary Only)
4123 - EGAN STOR-ACADIA-REC (Receipts and Deliveries) - 370,000
4137 - CLECO-TECHE - Total Capacity (Primary Only)
4186 - DISCOVERY GAS TRANSMISSION (Deliveries) - Total Capacity (Primary Only)
* 4197 - MidWestern Pipeline (Deliveries) - * 50,000 (eff. ID1 for 8/13/2026)
4204D - GULF SOUTH DELHI Delivery - Total Capacity (Primary Only)
4208R - SOUTHEASTERN SUPPLY HEADER (SESH) - Receipt - 0
4221 - GULF CROSSING - Total Capacity (Primary Only)
4222 - Texas Gas (Isola) - 0
4315 - BROADMORE RD (Receipts) - 775,000
5112 - NORAM PERRYVILLE Delivery - Total Capacity (Primary Only)
----------------------------------------------------------------------------
DUE PIPE AND DUE SHIPPER AVAILABILITY:
----------------------------------------------------------------------------
Due Pipe - Available
Due Shipper - Not Available
============================================================================
============================================================================
PAL & IT BUSINESS
Representatives are available on a daily basis to discuss PAL transactions with customers who have executed master PAL service agreements. (Reminder: Each PAL transaction including rate, term, quantity and point(s) must be provided for and approved on the Appendix A under the Master PAL Agreement). Customers who are interested in PAL transactions for next-day or longer-term park and/or lend transactions or daily discounted IT paths should contact Diana Roberts at 832-758-0900 (ICE droberts6) or Daniel Junek at 832-320-5825 (ICE djunek4) for more information.
----------------------------------------------------------------------------
AUTO PAL AVAILABILITY:
----------------------------------------------------------------------------
Effective with EVENING Cycle for each Gas Day, Auto Parks/Loans will be limited to +/- 5,000 Dth. Customers are reminded the intent of AutoPAL service is to utilize nominal quantities to resolve pool imbalances that result from upstream or downstream reductions during the cycle. This service should not be used for parking or loaning large quantities.
AutoPAL Parks and Loan Payback - Available
AutoPAL Loans and Unparks - Available
* Denotes a change from previous posting.
Columbia Gulf Transmission (CGT)
CAPACITY POSTING - TIM for August 15-17, 2026
SEV 4/5
Force Majeure2.350 Bcf/dUntil Further Notice
Columbia Gulf Transmission declares a capacity constraint notice for August 15-17, 2026, with an active force majeure at Corinth Compressor Station Unit 505 that has been in effect since June 19, 2026. The CorinSEG is restricted to 2,350,000 Dth/d (2.350 Bcf/d) in the net backhaul direction, while all other segments are listed at total capacity. No OFO has been declared, but Due Shipper service is unavailable. Several point constraints show zero availability (CROSSTEX-GIBSON, TRANSCO/TERREBONNE, SEA ROBIN-ERATH, BURLINGTON-TERREBONNE, SOUTHEASTERN SUPPLY HEADER, Texas Gas Isola), indicating meaningful localized tightness alongside the mainline FM.
Active CGT force majeure at Corinth CS Unit 505 restricts CorinSEG backhaul to 2.350 Bcf/d with no restoration date; CGT mainline basis has recently traded at -0.300 vs Henry Hub (2026-08-12), and continued FM with no timeline raises risk of widening at Columbia Gulf mainline and supportive pressure at Henry Hub as northbound backhaul throughput remains constrained -- watch Transco Zone 4 for downstream tightening.
Reroute: Moderate: Texas Eastern (TETCO) and Trunkline (TGC) serve overlapping Gulf Coast northbound corridors and provide partial reroute options, but the CGT FM has been active since June 19 with no restoration timeline, limiting the market's ability to fully offset the constraint through alternatives.
View original notice text
TSP Name Columbia Gulf Transmission, LLC
TSP 007854581
Notice Type Description: Capacity Constraint
Notice Stat Desc: Initiate
Prior Notice:
Critical: Y
Reqrd Rsp Desc: No Response Required
Post
Notice Effective
Notice End
Response
Post Date: 08/14/26
08/14/26
09/14/26
Subject: Subject: CAPACITY POSTING - TIM for August 15-17, 2026
Author: Author: Tom Koontz
Notice Text
COLUMBIA GULF TRANSMISSION, LLC DAILY CAPACITY POSTING
Columbia Gulf Transmission LLC (CGT) posts projections of anticipated restrictions at least 24 hours prior to the time when nominations are due. These advance forecasts are subject to change based on actual operating conditions. Customers should submit nominations for Timely Cycle to determine whether the service is available under current conditions.
============================================================================
============================================================================
FORCE MAJEURE / OFO
A Force Majeure was declared effective June 19, 2026, at Corinth Compressor Station Unit 505. Please see UPDATED Critical Notice ID 26092010 posted on June 30, 2026, for details.
No Operational Flow Order (OFO) is necessary.
============================================================================
============================================================================
Customers are encouraged to monitor scheduled volumes on the Operationally Available Capacity (OAC) screen on Navigates Informational Postings, as nominations may fluctuate based on market conditions.
============================================================================
============================================================================
----------------------------------------------------------------------------
INTERNAL CONSTRAINTS-- Total Capacity (Net Backhaul):
----------------------------------------------------------------------------
StanSEG - Total Capacity
ClemSEG – Total Capacity
HartSEG – Total Capacity
HampSEG - Total Capacity
CorinSEG - 2,350,000
BannSEG - Total Capacity
*InvrnSEG – *Total Capacity (effective Intraday-1 Cycle, 8-14-26)
ShelSEG - Total Capacity
DelhiSEG - Total Capacity
AlexSEG - Total Capacity
RayneSEG - Total Capacity
WLSEG - Total Capacity
ELSEG - Total Capacity
EL300SEG - Total Capacity
HoumaSEG - Total Capacity
----------------------------------------------------------------------------
INTERNAL CONSTRAINTS-- Total Capacity (Net Forwardhaul):
----------------------------------------------------------------------------
StanSEG - Total Capacity
ClemSEG – Total Capacity
HartSEG - Total Capacity
HampSEG - Total Capacity
CorinSEG - Total Capacity
BannSEG - Total Capacity
InvrnSEG – Total Capacity
ShelSEG - Total Capacity
DelhiSEG - Total Capacity
AlexSEG - Total Capacity
RayneSEG - Total Capacity
WLSEG - Total Capacity
ELSEG - Total Capacity
EL300SEG - Total Capacity
HoumaSEG - Total Capacity
----------------------------------------------------------------------------
POINT CONSTRAINTS -- Total Capacity:
----------------------------------------------------------------------------
Note: Points listed are controlled by less than meter capacity.
401 - CROSSTEX-GIBSON - 0
445 - TRANSCO / TERREBONNE - 0
481 - SEA ROBIN-ERATH - 0
3194 - TETCO ADAIR CO., KY (Receipts) - Total Capacity (Primary Only)
4051 - LAFAYETTE - ACADIA - Total Capacity (Primary Only)
4078 - SONAT-SHADYSIDE - Total Capacity (Primary Only)
4098 - BURLINGTON - TERREBONNE - 0
4118 - FLORIDA GAS - Total Capacity (Primary Only)
4123 - EGAN STOR-ACADIA-REC (Receipts and Deliveries) - 370,000
4137 - CLECO-TECHE - Total Capacity (Primary Only)
4186 - DISCOVERY GAS TRANSMISSION (Deliveries) - Total Capacity (Primary Only)
4197 - MidWestern Pipeline (Deliveries) - 50,000
4204D - GULF SOUTH DELHI Delivery - Total Capacity (Primary Only)
4208R - SOUTHEASTERN SUPPLY HEADER (SESH) - Receipt - 0
4221 - GULF CROSSING - Total Capacity (Primary Only)
4222 - Texas Gas (Isola) - 0
4315 - BROADMORE RD (Receipts) - 775,000
5112 - NORAM PERRYVILLE Delivery - Total Capacity (Primary Only)
----------------------------------------------------------------------------
DUE PIPE AND DUE SHIPPER AVAILABILITY:
----------------------------------------------------------------------------
Due Pipe - Available
Due Shipper - Not Available
============================================================================
============================================================================
PAL & IT BUSINESS
Representatives are available on a daily basis to discuss PAL transactions with customers who have executed master PAL service agreements. (Reminder: Each PAL transaction including rate, term, quantity and point(s) must be provided for and approved on the Appendix A under the Master PAL Agreement). Customers who are interested in PAL transactions for next-day or longer-term park and/or lend transactions or daily discounted IT paths should contact Diana Roberts at 832-758-0900 (ICE droberts6) or Daniel Junek at 832-320-5825 (ICE djunek4) for more information.
----------------------------------------------------------------------------
AUTO PAL AVAILABILITY:
----------------------------------------------------------------------------
Effective with EVENING Cycle for each Gas Day, Auto Parks/Loans will be limited to +/- 5,000 Dth. Customers are reminded the intent of AutoPAL service is to utilize nominal quantities to resolve pool imbalances that result from upstream or downstream reductions during the cycle. This service should not be used for parking or loaning large quantities.
AutoPAL Parks and Loan Payback - Available
AutoPAL Loans and Unparks - Available
* Denotes a change from previous posting.
Columbia Gulf Transmission (CGT)
Hampshire Compressor Station Maintenance (HampSEG), September 9 – November 25, 2026
SEV 4/5
Maintenance0.340 Bcf/d78 Days
CGT is scheduling maintenance at Hampshire Compressor Station (HampSEG) from September 9 through November 25, 2026 -- 78 calendar days. Backhaul capacity through HampSEG will be restricted to 2.200-2.350 Bcf/d against a design capacity of 2.541 Bcf/d, a reduction of approximately 0.190-0.340 Bcf/d (87-92% of design). CGT explicitly warns that Primary Firm, Secondary Firm, and Interruptible services are all at risk of curtailment, and Reservation Charge Credits have been triggered -- a firm-service curtailment notice, not merely an informational posting.
CGT HampSEG maintenance removes up to 0.340 Bcf/d of backhaul capacity from September 9 through November 25, with explicit risk of Primary Firm curtailments; Columbia Gulf mainline basis has been trading near -0.285 to -0.288 vs Henry Hub as of September 1 -- expect that spread to widen further as northbound backhaul capacity is squeezed during the shoulder/early-winter period, with modest bullish support for Transco Zone 4 and Gulf Coast downstream markets receiving less northbound competition for Gulf Coast gas.
Reroute: Moderate: Texas Eastern (TETCO) and Trunkline (TGC) serve overlapping Gulf Coast northbound corridors and provide partial backhaul alternatives; however, the 78-day duration and explicit firm curtailment risk mean alternative paths may face significant competition for remaining capacity, limiting full offset.
View original notice text
TSP Name Columbia Gulf Transmission, LLC
TSP 007854581
Notice Type Description: Maintenance
Notice Stat Desc: Initiate
Prior Notice:
Critical: Y
Reqrd Rsp Desc: No Response Required
Post
Notice Effective
Notice End
Response
Post Date: 09/02/26
09/02/26
10/02/26
Subject: Subject: Hampshire Compressor Station Maintenance (HampSEG), September 9 – November 25, 2026
Author: Author: Dillon Schoolcraft
Notice Text
Columbia Gulf Transmission LLC (CGT) notifies customers of upcoming maintenance at Hampshire Compressor Station scheduled for Wednesday, September 9, 2026, through Wednesday, November 25, 2026. As a result, the backhaul capacity through HampSEG will be reduced to a level between 2,200,000 and 2,350,000 Dth effective Timely Cycle for Gas Day Wednesday, September 9, 2026.
CGT anticipates this restriction may result in curtailments to Interruptible, Secondary Firm, and Primary Firm services. Please see the details provided below for more information.
HampSEG
· Estimated Capacity Setting: 2,200,000 - 2,350,000 Dth
· Design Capacity: 2,540,656
· Posted Percentage: 87-92%
Due to the potential impact to firm service, CGT encourages customers to monitor the scheduled volumes on the Operationally Available Capacity screen on Informational Postings, as nominations can fluctuate based on market conditions.
Reservation Charge Credits (RCCs) will be determined per the process set forth in the General Terms and Conditions, Section 40 of CGT’s FERC Gas Tariff (Tariff). By means of this notice, CGT is establishing the 7-day Average Usage Quantity to be the period of August 20-26, 2026, pursuant to the provisions in the Tariff.
Please contact your Customer Services Representative with any questions.
Columbia Gulf Transmission (CGT)
UPDATE: Hampshire Compressor Station Maintenance
SEV 4/5
Maintenance0.391 Bcf/dUntil Further Notice77 Days
CGT has updated its Hampshire Compressor Station maintenance notice, revising the lower bound of the backhaul capacity restriction downward to 2,150,000 Dth/d (from the prior 2,200,000 Dth/d floor), against a design capacity of 2,540,656 Dth/d -- a reduction of up to 0.391 Bcf/d versus design. The maintenance window remains September 9 through November 25, 2026 (77 days). Critically, the prior posting explicitly warned of potential curtailments to Interruptible, Secondary Firm, and Primary Firm services, an escalation trigger that elevates severity; the updated notice widens the capacity reduction range modestly on the downside and removes the explicit firm-service curtailment language, but the prior notice established that risk and it has not been formally withdrawn. Live capacity data for HampSEG (TD4 cycle, timely) shows 2.15 Bcf/d scheduled against 2.54 Bcf/d operating capacity at 84.8% utilization today, consistent with pre-event conditions ahead of the September 9 effective date.
CGT Hampshire maintenance removes up to 0.391 Bcf/d of backhaul capacity on HampSEG from September 9 through November 25, representing roughly 15% of the segment's design capacity; with Columbia Gulf mainline basis most recently at -0.215 vs Henry Hub (2026-09-03) against a 5-day trailing average of -0.254, expect this basis to tighten (move less negative or flip positive) as northbound backhaul tightens through Kentucky and into TETCO/Adair Co. interconnects, which is already showing only 3.6% headroom at 0.200 Bcf/d scheduled.
Reroute: Moderate: Texas Eastern (TETCO) and Trunkline (TGC) serve overlapping Gulf Coast northbound corridors and provide partial reroute options, but the multi-month duration and the prior notice's warning of firm service curtailments suggest the constraint exceeds what parallel capacity can fully absorb without basis widening.
View original notice text
TSP Name Columbia Gulf Transmission, LLC
TSP 007854581
Notice Type Description: Maintenance
Notice Stat Desc: Supersede
Prior Notice: 26210020
Critical: Y
Reqrd Rsp Desc: No Response Required
Post
Notice Effective
Notice End
Response
Post Date: 09/04/26
09/04/26
10/04/26
Subject: Subject: UPDATE: Hampshire Compressor Station Maintenance
Author: Author: Tyler King
Notice Text
Columbia Gulf Transmission, LLC (CGT) notifies customers that based on updated logistics involving the upcoming maintenance at Hampshire Compressor Station, the backhaul capacity will be reduced to a level between 2,150,000 Dth and 2,350,000 Dth effective Timely Cycle for Gas Day Wednesday, September 9, 2026.
CGT encourages customers to monitor the Daily Capacity Posting each day of the maintenance for the specific capacity setting through HampSEG.
HampSEG
· Estimated Capacity Setting: 2,150,000 - 2,350,000 Dth
· Design Capacity: 2,540,656
· Posted Percentage: 85-92%
Reservation Charge Credits (RCCs) will be determined per the process set forth in the General Terms and Conditions, Section 40 of CGT’s FERC Gas Tariff (Tariff).
Please contact your Customer Services Representative with any questions.
***Previous Posting***
Columbia Gulf Transmission LLC (CGT) notifies customers of upcoming maintenance at Hampshire Compressor Station scheduled for Wednesday, September 9, 2026, through Wednesday, November 25, 2026. As a result, the backhaul capacity through HampSEG will be reduced to a level between 2,200,000 and 2,350,000 Dth effective Timely Cycle for Gas Day Wednesday, September 9, 2026.
CGT anticipates this restriction may result in curtailments to Interruptible, Secondary Firm, and Primary Firm services. Please see the details provided below for more information.
HampSEG
· Estimated Capacity Setting: 2,200,000 - 2,350,000 Dth
· Design Capacity: 2,540,656
· Posted Percentage: 87-92%
Due to the potential impact to firm service, CGT encourages customers to monitor the scheduled volumes on the Operationally Available Capacity screen on Informational Postings, as nominations can fluctuate based on market conditions.
Reservation Charge Credits (RCCs) will be determined per the process set forth in the General Terms and Conditions, Section 40 of CGT’s FERC Gas Tariff (Tariff). By means of this notice, CGT is establishing the 7-day Average Usage Quantity to be the period of August 20-26, 2026, pursuant to the provisions in the Tariff.
Please contact your Customer Services Representative with any questions.
Columbia Gulf Transmission (CGT)
Golden Meadow & Centerville Compressor Station Maintenance (EL300SEG), September 15-18, 2026
SEV 4/5
Maintenance0.075 Bcf/d4 Days
CGT has notified customers of planned maintenance at both Golden Meadow and Centerville Compressor Stations from September 15-18, 2026, reducing backhaul capacity on EL300SEG to 350,000-500,000 Dth/day against a design capacity of 575,000 Dth/day -- a restriction of up to 225,000 Dth/day (0.225 Bcf/d). CGT explicitly warns that curtailments to Interruptible, Secondary Firm, and Primary Firm services are anticipated, a significant escalation beyond typical interruptible-only curtailment language. Live capacity data confirms EL300SEG is already at 100% utilization (0.575 Bcf/d scheduled against 0.575 Bcf/d operating capacity) as of the September 8 timely cycle, corroborating the tightness described in the notice.
CGT maintenance on EL300SEG cuts backhaul capacity by up to 0.225 Bcf/d (midpoint ~0.113 Bcf/d restriction at the 500k Dth floor) for four days starting September 15, with primary firm curtailments explicitly at risk; Columbia Gulf mainline basis, which has traded at an average of -0.247 vs Henry Hub over the five trading days ended September 4 (most recently -0.215 on September 4), is likely to widen further as southbound backhaul tightens and Transco Zone 4 Southeast basis firms in sympathy.
Reroute: Moderate: Texas Eastern (TETCO) and Trunkline (TGC) serve overlapping Gulf Coast northbound corridors and could absorb some displaced volumes, but the explicit primary firm curtailment risk on a Critical notice suggests CGT does not anticipate sufficient system-level flexibility to avoid firm impacts.
View original notice text
TSP Name Columbia Gulf Transmission, LLC
TSP 007854581
Notice Type Description: Maintenance
Notice Stat Desc: Initiate
Prior Notice:
Critical: Y
Reqrd Rsp Desc: No Response Required
Post
Notice Effective
Notice End
Response
Post Date: 09/08/26
09/08/26
10/08/26
Subject: Subject: Golden Meadow & Centerville Compressor Station Maintenance (EL300SEG), September 15-18, 2026
Author: Author: Dillon Schoolcraft
Notice Text
Columbia Gulf Transmission LLC (CGT) reminds customers of upcoming maintenance at both Golden Meadow and Centerville Compressor Stations, beginning on Tuesday, September 15, 2026, through Friday, September 18, 2026. As a result, the Backhaul capacity through EL300SEG will be reduced to a level between 350,000 and 500,000 Dth effective Timely Cycle for Gas Day Tuesday, September 15, 2026.
CGT anticipates this restriction may result in curtailments to Interruptible, Secondary Firm, and Primary Firm services. Please see the details provided below for more information.
EL300SEG
· Estimated Capacity Setting: 350,000 - 500,000 Dth
· Design Capacity: 575,000 Dth
· Posted Percentage: 61-87%
Due to the potential impact to firm service, CGT encourages customers to monitor the scheduled volumes on the Operationally Available Capacity screen on Informational Postings, as nominations can fluctuate based on market conditions.
Reservation Charge Credits (RCCs) will be determined per the process set forth in the General Terms and Conditions, Section 40 of CGT’s FERC Gas Tariff (Tariff). By means of this notice, CGT is establishing the 7-day Average Usage Quantity to be the period of September 1-7, 2026, pursuant to the provisions in the Tariff.
Please contact your Customer Services Representative with any questions.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
TSP Name Columbia Gulf Transmission, LLC
TSP 007854581
Notice Type Description: Capacity Constraint
Notice Stat Desc: Initiate
Prior Notice:
Critical: Y
Reqrd Rsp Desc: No Response Required
Post
Notice Effective
Notice End
Response
Post Date: 07/06/26
07/06/26
08/06/26
Subject: Subject: CAPACITY POSTING - TIM for July 7, 2026
Author: Author: Dillon Schoolcraft
Notice Text
COLUMBIA GULF TRANSMISSION, LLC DAILY CAPACITY POSTING
Columbia Gulf Transmission LLC (CGT) posts projections of anticipated restrictions at least 24 hours prior to the time when nominations are due. These advance forecasts are subject to change based on actual operating conditions. Customers should submit nominations for Timely Cycle to determine whether the service is available under current conditions.
============================================================================
============================================================================
FORCE MAJEURE / OFO
A Force Majeure was declared effective June 19, 2026, at Corinth Compressor Station Unit 505. Please see UPDATED Critical Notice ID 26092010 posted on June 30, 2026, for details.
No Operational Flow Order (OFO) is necessary.
============================================================================
============================================================================
Customers are encouraged to monitor scheduled volumes on the Operationally Available Capacity (OAC) screen on Navigates Informational Postings, as nominations may fluctuate based on market conditions.
============================================================================
============================================================================
----------------------------------------------------------------------------
INTERNAL CONSTRAINTS-- Total Capacity (Net Backhaul):
----------------------------------------------------------------------------
StanSEG - Total Capacity
ClemSEG - Total Capacity
HartSEG - Total Capacity
HampSEG - Total Capacity
CorinSEG - 2,350,000
BannSEG – Total Capacity
InvrnSEG - Total Capacity
ShelSEG - Total Capacity
DelhiSEG - Total Capacity
AlexSEG - Total Capacity
RayneSEG - Total Capacity
WLSEG - Total Capacity
ELSEG - Total Capacity
EL300SEG - Total Capacity
HoumaSEG - Total Capacity
----------------------------------------------------------------------------
INTERNAL CONSTRAINTS-- Total Capacity (Net Forwardhaul):
----------------------------------------------------------------------------
StanSEG - Total Capacity
ClemSEG - Total Capacity
HartSEG - Total Capacity
HampSEG - Total Capacity
CorinSEG - Total Capacity
BannSEG - Total Capacity
InvrnSEG - Total Capacity
ShelSEG - Total Capacity
DelhiSEG - Total Capacity
AlexSEG - Total Capacity
RayneSEG - Total Capacity
WLSEG - Total Capacity
ELSEG - Total Capacity
EL300SEG - Total Capacity
HoumaSEG - Total Capacity
----------------------------------------------------------------------------
POINT CONSTRAINTS -- Total Capacity:
----------------------------------------------------------------------------
Note: Points listed are controlled by less than meter capacity.
401 - CROSSTEX-GIBSON - 0
445 - TRANSCO / TERREBONNE - 0
481 - SEA ROBIN-ERATH - 0
3194 - TETCO ADAIR CO., KY (Receipts) - Total Capacity (Primary Only)
4051 - LAFAYETTE - ACADIA - Total Capacity (Primary Only)
4078 - SONAT-SHADYSIDE - Total Capacity (Primary Only)
4098 - BURLINGTON - TERREBONNE - 0
4118 - FLORIDA GAS - Total Capacity (Primary Only)
4123 - EGAN STOR-ACADIA-REC (Receipts and Deliveries) - 370,000
4137 - CLECO-TECHE - Total Capacity (Primary Only)
4186 - DISCOVERY GAS TRANSMISSION (Deliveries) - Total Capacity (Primary Only)
4204D - GULF SOUTH DELHI Delivery - Total Capacity (Primary Only)
4208R - SOUTHEASTERN SUPPLY HEADER (SESH) - Receipt - 0
4221 - GULF CROSSING - Total Capacity (Primary Only)
4222 - Texas Gas (Isola) - 0
4315 - BROADMORE RD (Receipts) - 775,000
5112 - NORAM PERRYVILLE Delivery - Total Capacity (Primary Only)
----------------------------------------------------------------------------
DUE PIPE AND DUE SHIPPER AVAILABILITY:
----------------------------------------------------------------------------
Due Pipe - Available
Due Shipper - Available
============================================================================
============================================================================
PAL & IT BUSINESS
Representatives are available on a daily basis to discuss PAL transactions with customers who have executed master PAL service agreements. (Reminder: Each PAL transaction including rate, term, quantity and point(s) must be provided for and approved on the Appendix A under the Master PAL Agreement). Customers who are interested in PAL transactions for next-day or longer-term park and/or lend transactions or daily discounted IT paths should contact Diana Roberts at 832-758-0900 (ICE droberts6) or Daniel Junek at 832-320-5825 (ICE djunek4) for more information.
----------------------------------------------------------------------------
AUTO PAL AVAILABILITY:
----------------------------------------------------------------------------
Effective with EVENING Cycle for each Gas Day, Auto Parks/Loans will be limited to +/- 5,000 Dth. Customers are reminded the intent of AutoPAL service is to utilize nominal quantities to resolve pool imbalances that result from upstream or downstream reductions during the cycle. This service should not be used for parking or loaning large quantities.
AutoPAL Parks and Loan Payback - Available
AutoPAL Loans and Unparks - Available
* Denotes a change from previous posting.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
TSP Name Columbia Gulf Transmission, LLC
TSP 007854581
Notice Type Description: Maintenance
Notice Stat Desc: Supersede
Prior Notice: 26092035
Critical: Y
Reqrd Rsp Desc: No Response Required
Post
Notice Effective
Notice End
Response
Post Date: 07/10/26
07/10/26
08/10/26
Subject: Subject: UPDATE: Ridgeline Tie-In Maintenance (4166)
Author: Author: Dillon Schoolcraft
Notice Text
Columbia Gulf Transmission, LLC (CGT) notifies customers that ridgeline tie-ins are still on schedule to begin on Tuesday, July 14, 2026, reducing the backhaul capacity through HartSEG to a level between 2,200,000 – 2,400,000 Dth.
However, the City of Gallatin (4166) meter will now be taken to 0 Total Capacity effective Timely Cycle July 21, 2026, through July 31, 2026.
Reservation Charge Credits (RCCs) will be determined per the process set forth in the General Terms and Conditions, Section 40 of CGT’s FERC Gas Tariff (Tariff).
Please contact your Customer Services Representative with any questions.
***Previous Posting***
Columbia Gulf Transmission LLC (CGT) notifies customers of upcoming Ridgeline Tie-In’s on Mainlines 200 and 300 beginning on Tuesday, July 14, 2026, through Friday, July 31, 2026. As a result, the backhaul capacity through HartSEG will be reduced to a level between 2,200,000 - 2,400,000 Dth effective Timely Cycle for Gas Day Tuesday, July 14, 2026.
Additionally, the City of Gallatin (4166) meter will be taken to 0 Total Capacity effective Timely Cycle for Gas Day Tuesday, July 14, 2026 through Thursday, July 23, 2026.
CGT anticipates this restriction may result in curtailments to Interruptible, Secondary Firm, and Primary Firm services. Please see the details provided below for more information.
HartSEG
· Estimated Capacity Setting: 2,200,000 – 2,400,000 Dth
· Design Capacity: 2,544,656 Dth
· Posted Percentage: 86-94%
Due to the potential impact to firm service, CGT encourages customers to monitor the scheduled volumes on the Operationally Available Capacity screen on Informational Postings, as nominations can fluctuate based on market conditions.
Reservation Charge Credits (RCCs) will be determined per the process set forth in the General Terms and Conditions, Section 40 of CGT’s FERC Gas Tariff (Tariff). By means of this notice, CGT is establishing the 7-day Average Usage Quantity to be the period of June 13-19, 2026, pursuant to the provisions in the Tariff.
Please contact your Customer Services Representative with any questions.
Columbia Gulf Transmission (CGT)
REVISED: CAPACITY POSTING - TIM for August 11, 2026
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
TSP Name Columbia Gulf Transmission, LLC
TSP 007854581
Notice Type Description: Capacity Constraint
Notice Stat Desc: Supersede
Prior Notice: 26126051
Critical: Y
Reqrd Rsp Desc: No Response Required
Post
Notice Effective
Notice End
Response
Post Date: 08/10/26
08/10/26
09/10/26
Subject: Subject: REVISED: CAPACITY POSTING - TIM for August 11, 2026
Author: Author: Jonah Skiles
Notice Text
COLUMBIA GULF TRANSMISSION, LLC DAILY CAPACITY POSTING
Columbia Gulf Transmission LLC (CGT) posts projections of anticipated restrictions at least 24 hours prior to the time when nominations are due. These advance forecasts are subject to change based on actual operating conditions. Customers should submit nominations for Timely Cycle to determine whether the service is available under current conditions.
** Revision to correct the ClemSEG and InvrnSEG restrictions to backhaul capacity
============================================================================
============================================================================
FORCE MAJEURE / OFO
A Force Majeure was declared effective June 19, 2026, at Corinth Compressor Station Unit 505. Please see UPDATED Critical Notice ID 26092010 posted on June 30, 2026, for details.
No Operational Flow Order (OFO) is necessary.
============================================================================
============================================================================
Customers are encouraged to monitor scheduled volumes on the Operationally Available Capacity (OAC) screen on Navigates Informational Postings, as nominations may fluctuate based on market conditions.
============================================================================
============================================================================
----------------------------------------------------------------------------
INTERNAL CONSTRAINTS-- Total Capacity (Net Backhaul):
----------------------------------------------------------------------------
StanSEG - Total Capacity
* ClemSEG - * 2,050,000
HartSEG – Total Capacity
HampSEG - Total Capacity
CorinSEG - 2,350,000
BannSEG - 2,400,000
* InvrnSEG - * 2,325,000
ShelSEG - Total Capacity
DelhiSEG - Total Capacity
AlexSEG - Total Capacity
RayneSEG - Total Capacity
WLSEG - Total Capacity
ELSEG - Total Capacity
EL300SEG - Total Capacity
HoumaSEG - Total Capacity
----------------------------------------------------------------------------
INTERNAL CONSTRAINTS-- Total Capacity (Net Forwardhaul):
----------------------------------------------------------------------------
StanSEG - Total Capacity
ClemSEG - Total Capacity
HartSEG - Total Capacity
HampSEG - Total Capacity
CorinSEG - Total Capacity
BannSEG - Total Capacity
InvrnSEG - Total Capacity
ShelSEG - Total Capacity
DelhiSEG - Total Capacity
AlexSEG - Total Capacity
RayneSEG - Total Capacity
WLSEG - Total Capacity
ELSEG - Total Capacity
EL300SEG - Total Capacity
HoumaSEG - Total Capacity
----------------------------------------------------------------------------
POINT CONSTRAINTS -- Total Capacity:
----------------------------------------------------------------------------
Note: Points listed are controlled by less than meter capacity.
401 - CROSSTEX-GIBSON - 0
445 - TRANSCO / TERREBONNE - 0
481 - SEA ROBIN-ERATH - 0
3194 - TETCO ADAIR CO., KY (Receipts) - Total Capacity (Primary Only)
4051 - LAFAYETTE - ACADIA - Total Capacity (Primary Only)
4078 - SONAT-SHADYSIDE - Total Capacity (Primary Only)
4098 - BURLINGTON - TERREBONNE - 0
4118 - FLORIDA GAS - Total Capacity (Primary Only)
4123 - EGAN STOR-ACADIA-REC (Receipts and Deliveries) - 370,000
4137 - CLECO-TECHE - Total Capacity (Primary Only)
4186 - DISCOVERY GAS TRANSMISSION (Deliveries) - Total Capacity (Primary Only)
4197 - MidWestern Pipeline (Deliveries) - 20,000
4204D - GULF SOUTH DELHI Delivery - Total Capacity (Primary Only)
4208R - SOUTHEASTERN SUPPLY HEADER (SESH) - Receipt - 0
4221 - GULF CROSSING - Total Capacity (Primary Only)
4222 - Texas Gas (Isola) - 0
4315 - BROADMORE RD (Receipts) - 775,000
5112 - NORAM PERRYVILLE Delivery - Total Capacity (Primary Only)
----------------------------------------------------------------------------
DUE PIPE AND DUE SHIPPER AVAILABILITY:
----------------------------------------------------------------------------
Due Pipe - Available
Due Shipper - Not Available
============================================================================
============================================================================
PAL & IT BUSINESS
Representatives are available on a daily basis to discuss PAL transactions with customers who have executed master PAL service agreements. (Reminder: Each PAL transaction including rate, term, quantity and point(s) must be provided for and approved on the Appendix A under the Master PAL Agreement). Customers who are interested in PAL transactions for next-day or longer-term park and/or lend transactions or daily discounted IT paths should contact Diana Roberts at 832-758-0900 (ICE droberts6) or Daniel Junek at 832-320-5825 (ICE djunek4) for more information.
----------------------------------------------------------------------------
AUTO PAL AVAILABILITY:
----------------------------------------------------------------------------
Effective with EVENING Cycle for each Gas Day, Auto Parks/Loans will be limited to +/- 5,000 Dth. Customers are reminded the intent of AutoPAL service is to utilize nominal quantities to resolve pool imbalances that result from upstream or downstream reductions during the cycle. This service should not be used for parking or loaning large quantities.
AutoPAL Parks and Loan Payback - Available
AutoPAL Loans and Unparks - Available
* Denotes a change from previous posting.
Columbia Gulf Transmission (CGT)
REVISED CAPACITY POSTING - TIM for August 20, 2026
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
TSP Name Columbia Gulf Transmission, LLC
TSP 007854581
Notice Type Description: Capacity Constraint
Notice Stat Desc: Supersede
Prior Notice: 26155011
Critical: Y
Reqrd Rsp Desc: No Response Required
Post
Notice Effective
Notice End
Response
Post Date: 08/19/26
08/19/26
09/19/26
Subject: Subject: REVISED CAPACITY POSTING - TIM for August 20, 2026
Author: Author: Jonah Skiles
Notice Text
COLUMBIA GULF TRANSMISSION, LLC DAILY CAPACITY POSTING
***Only change to below: * CorinSEG – * Total Capacity (eff. TIM for 8/20/2026)
Columbia Gulf Transmission LLC (CGT) posts projections of anticipated restrictions at least 24 hours prior to the time when nominations are due. These advance forecasts are subject to change based on actual operating conditions. Customers should submit nominations for Timely Cycle to determine whether the service is available under current conditions.
============================================================================
============================================================================
FORCE MAJEURE / OFO
* No Force Majeure is necessary.
No Operational Flow Order (OFO) is necessary.
============================================================================
============================================================================
Customers are encouraged to monitor scheduled volumes on the Operationally Available Capacity (OAC) screen on Navigates Informational Postings, as nominations may fluctuate based on market conditions.
============================================================================
============================================================================
----------------------------------------------------------------------------
INTERNAL CONSTRAINTS-- Total Capacity (Net Backhaul):
----------------------------------------------------------------------------
StanSEG - Total Capacity
ClemSEG – Total Capacity
HartSEG – Total Capacity
HampSEG - Total Capacity
* CorinSEG - * Total Capacity
BannSEG - Total Capacity
InvrnSEG – Total Capacity
ShelSEG - Total Capacity
DelhiSEG - Total Capacity
AlexSEG - Total Capacity
RayneSEG - Total Capacity
WLSEG - Total Capacity
ELSEG - Total Capacity
EL300SEG - Total Capacity
HoumaSEG - Total Capacity
----------------------------------------------------------------------------
INTERNAL CONSTRAINTS-- Total Capacity (Net Forwardhaul):
----------------------------------------------------------------------------
StanSEG - Total Capacity
ClemSEG – Total Capacity
HartSEG - Total Capacity
HampSEG - Total Capacity
CorinSEG - Total Capacity
BannSEG - Total Capacity
InvrnSEG – Total Capacity
ShelSEG - Total Capacity
DelhiSEG - Total Capacity
AlexSEG - Total Capacity
RayneSEG - Total Capacity
WLSEG - Total Capacity
ELSEG - Total Capacity
EL300SEG - Total Capacity
HoumaSEG - Total Capacity
----------------------------------------------------------------------------
POINT CONSTRAINTS -- Total Capacity:
----------------------------------------------------------------------------
Note: Points listed are controlled by less than meter capacity.
401 - CROSSTEX-GIBSON - 0
445 - TRANSCO / TERREBONNE - 0
481 - SEA ROBIN-ERATH - 0
3194 - TETCO ADAIR CO., KY (Receipts) - Total Capacity (Primary Only)
4051 - LAFAYETTE - ACADIA - Total Capacity (Primary Only)
4078 - SONAT-SHADYSIDE - Total Capacity (Primary Only)
4098 - BURLINGTON - TERREBONNE - 0
4118 - FLORIDA GAS - Total Capacity (Primary Only)
4123 - EGAN STOR-ACADIA-REC (Receipts and Deliveries) - 370,000
4137 - CLECO-TECHE - Total Capacity (Primary Only)
4186 - DISCOVERY GAS TRANSMISSION (Deliveries) - Total Capacity (Primary Only)
4197 - MidWestern Pipeline (Deliveries) - 50,000
4204D - GULF SOUTH DELHI Delivery - Total Capacity (Primary Only)
4208R - SOUTHEASTERN SUPPLY HEADER (SESH) - Receipt - 0
4221 - GULF CROSSING - Total Capacity (Primary Only)
4222 - Texas Gas (Isola) - 0
4315 - BROADMORE RD (Receipts) - 775,000
5112 - NORAM PERRYVILLE Delivery - Total Capacity (Primary Only)
----------------------------------------------------------------------------
DUE PIPE AND DUE SHIPPER AVAILABILITY:
----------------------------------------------------------------------------
Due Pipe - Available
Due Shipper - Not Available
============================================================================
============================================================================
PAL & IT BUSINESS
Representatives are available on a daily basis to discuss PAL transactions with customers who have executed master PAL service agreements. (Reminder: Each PAL transaction including rate, term, quantity and point(s) must be provided for and approved on the Appendix A under the Master PAL Agreement). Customers who are interested in PAL transactions for next-day or longer-term park and/or lend transactions or daily discounted IT paths should contact Diana Roberts at 832-758-0900 (ICE droberts6) or Daniel Junek at 832-320-5825 (ICE djunek4) for more information.
----------------------------------------------------------------------------
AUTO PAL AVAILABILITY:
----------------------------------------------------------------------------
Effective with EVENING Cycle for each Gas Day, Auto Parks/Loans will be limited to +/- 5,000 Dth. Customers are reminded the intent of AutoPAL service is to utilize nominal quantities to resolve pool imbalances that result from upstream or downstream reductions during the cycle. This service should not be used for parking or loaning large quantities.
AutoPAL Parks and Loan Payback - Available
AutoPAL Loans and Unparks - Available
* Denotes a change from previous posting.
Columbia Gulf Transmission (CGT)
Hartsville Compressor Station Maintenance (HartSEG), September 9-30, 2026
SEV 3/5
Maintenance0.245 Bcf/d22 Days
CGT has issued a planned maintenance notice for Hartsville Compressor Station (HartSEG) from September 9 through September 30, 2026, reducing backhaul capacity to 2,300,000-2,400,000 Dth/d versus the design capacity of 2,544,656 Dth/d -- a restriction of roughly 144,656-244,656 Dth/d (0.145-0.245 Bcf/d). CGT explicitly warns this may result in curtailments to Interruptible, Secondary Firm, and Primary Firm services. The HartSEG capacity table as of the 2026-09-02 timely cycle shows the segment running at approximately 84.6% utilization at 2.15 Bcf/d scheduled against 2.54 Bcf/d operating capacity, suggesting the upcoming restriction will bite into current headroom and create genuine firm-service curtailment risk.
CGT HartSEG planned maintenance removes approximately 0.145-0.245 Bcf/d of backhaul capacity starting September 9, elevating firm curtailment risk on a corridor that was already at ~85% utilization as of the 2026-09-02 timely cycle; Columbia Gulf mainline basis has been trading around -0.285 to -0.288 vs Henry Hub over the five trading days ended 2026-09-01, and tighter backhaul capacity through HartSEG is bullish for Transco Zone 4 and downstream Southeast markets while adding marginal bearish pressure to Gulf Coast/Haynesville supply points that rely on CGT northbound flow.
Reroute: Moderate: Texas Eastern (TETCO), Trunkline (TGC), and ANR serve overlapping Gulf Coast northbound corridors, but the explicit firm-service curtailment warning from CGT suggests HartSEG is already a critical constraint point with limited slack; affected shippers should pursue alternate paths early as September 9 approaches.
View original notice text
TSP Name Columbia Gulf Transmission, LLC
TSP 007854581
Notice Type Description: Maintenance
Notice Stat Desc: Initiate
Prior Notice:
Critical: Y
Reqrd Rsp Desc: No Response Required
Post
Notice Effective
Notice End
Response
Post Date: 09/02/26
09/02/26
10/02/26
Subject: Subject: Hartsville Compressor Station Maintenance (HartSEG), September 9-30, 2026
Author: Author: Dillon Schoolcraft
Notice Text
Columbia Gulf Transmission LLC (CGT) notifies customers of upcoming maintenance at Hartsville Compressor Station beginning on Wednesday, September 9, 2026, through Wednesday, September 30, 2026. As a result, the backhaul capacity through HartSEG will be reduced to a level between 2,300,000 – 2,400,000 Dth effective Timely Cycle for Gas Day Wednesday, September 9, 2026.
CGT anticipates this restriction may result in curtailments to Interruptible, Secondary Firm, and Primary Firm services. Please see the details provided below for more information.
HartSEG
· Estimated Capacity Setting: 2,300,000 – 2,400,000 Dth
· Design Capacity: 2,544,656 Dth
· Posted Percentage: 90-94%
Due to the potential impact to firm service, CGT encourages customers to monitor the scheduled volumes on the Operationally Available Capacity screen on Informational Postings, as nominations can fluctuate based on market conditions.
Reservation Charge Credits (RCCs) will be determined per the process set forth in the General Terms and Conditions, Section 40 of CGT’s FERC Gas Tariff (Tariff). By means of this notice, CGT is establishing the 7-day Average Usage Quantity to be the period of August 20-26, 2026, pursuant to the provisions in the Tariff.
Please contact your Customer Services Representative with any questions.
Columbia Gulf Transmission (CGT)
Alexandria Compressor Station Maintenance (AlexSEG), September 9, 2026
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
TSP Name Columbia Gulf Transmission, LLC
TSP 007854581
Notice Type Description: Maintenance
Notice Stat Desc: Initiate
Prior Notice:
Critical: Y
Reqrd Rsp Desc: No Response Required
Post
Notice Effective
Notice End
Response
Post Date: 09/02/26
09/02/26
10/02/26
Subject: Subject: Alexandria Compressor Station Maintenance (AlexSEG), September 9, 2026
Author: Author: Dillon Schoolcraft
Notice Text
Columbia Gulf Transmission LLC (CGT) notifies customers of upcoming at Alexandria Compressor Station on Wednesday, September 9, 20266. As a result, the backhaul capacity through AlexSEG will be reduced to 2,450,000 Dth effective Timely Cycle for Gas Day Wednesday, September 9, 2026.
CGT anticipates this restriction may result in curtailments to Interruptible, Secondary Firm, and Primary Firm services. Please see the details provided below for more information.
AlexSEG
· Estimated Capacity Setting: 2,450,000 Dth
· Design Capacity: 2,683,256 Dth
· Posted Percentage: 91%
Due to the potential impact to firm service, CGT encourages customers to monitor the scheduled volumes on the Operationally Available Capacity screen on Informational Postings, as nominations can fluctuate based on market conditions.
Reservation Charge Credits (RCCs) will be determined per the process set forth in the General Terms and Conditions, Section 40 of CGT’s FERC Gas Tariff (Tariff). By means of this notice, CGT is establishing the 7-day Average Usage Quantity to be the period of August 20-26, 2026, pursuant to the provisions in the Tariff.
Please contact your Customer Services Representative with any questions.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
Notice Type Description: Scheduling Alert
Notice Stat Desc: Initiate
Prior Notice:
Critical: Y
Reqrd Rsp Desc: No Response Required
Post
Notice Effective
Notice End
Response
Post Date: 01/23/26
01/23/26
02/23/26 1:01:06 PM
12:00:00 AM
12:00:00 AM
Subject: Scheduling Alert – EDI Files
Author: Tyler King
Notice Text:
TC Energy (TC) notifies shippers of an issue affecting inbound Electronic Data Interchange (EDI) files.
TC is experiencing delays in processing inbound EDI files. This includes EDI confirmations and EDI nominations. Nominations and confirmations may still be entered manually via the TC eConnects online application at https://ebb.tceconnects.com through the nomination upload feature or within the Nomination Matrix screen.
As a result, for the TIM Cycle for Gas Day January 24, 2026, the nomination deadline has been extended by 20 mins to 1:20 PM CST.
If you have any questions, please call the after-hours on call number at 866-581-6487 for assistance.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
Notice Type Description: Maintenance
Notice Stat Desc: Initiate
Prior Notice:
Critical: Y
Reqrd Rsp Desc: No Response Required
Post
Notice Effective
Notice End
Response
Post Date: 01/23/26
01/23/26
02/23/26 11:39:22 AM
12:00:00 AM
12:00:00 AM
Subject: Construction and Maintenance Schedule Posting
Author: Dillon Schoolcraft
Notice Text:
As a courtesy, Columbia Gulf Transmission, LLC (CGT) hereby notifies customers the Construction and Maintenance Schedule posted under "Construction and Maintenance" on the Informational Postings website has been updated. CGT reminds customers to please check the Maintenance Schedule on a regular basis.
The current schedule has been updated to reflect maintenance activity on the following:
* Revised dates – Mainline-300 pigging – January 30 - February 3, 2026 (Previously scheduled for January 28 – February 1, 2026)
* Revised dates – West Lateral-300 pigging – Late February, 2026 (Previously scheduled for January 27-29, 2026)
Additionally, the following file(s) can be located on Informational Postings under Construction and Maintenance
CGT Construction and Maintenance Schedule 01-23-2026.pdf
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
Notice Type Description: Capacity Constraint
Notice Stat Desc: Initiate
Prior Notice:
Critical: Y
Reqrd Rsp Desc: No Response Required
Post
Notice Effective
Notice End
Response
Post Date: 01/23/26
01/23/26
02/23/26 7:09:24 AM
12:00:00 AM
12:00:00 AM
Subject: CAPACITY POSTING - TIM for January 24-26, 2026
Author: Tom Koontz
Notice Text:
COLUMBIA GULF TRANSMISSION, LLC DAILY CAPACITY POSTING
Columbia Gulf Transmission LLC (CGT) posts projections of anticipated restrictions at least 24 hours prior to the time when nominations are due. These advance forecasts are subject to change based on actual operating conditions. Customers should submit nominations for Timely Cycle to determine whether the service is available under current conditions.
============================================================================
============================================================================
FORCE MAJEURE / OFO
No Force Majeure is necessary.
No Operational Flow Order (OFO) is necessary.
============================================================================
============================================================================
Customers are encouraged to monitor scheduled volumes on the Operationally Available Capacity (OAC) screen on Navigates Informational Postings, as nominations may fluctuate based on market conditions.
============================================================================
============================================================================
----------------------------------------------------------------------------
INTERNAL CONSTRAINTS-- Total Capacity (Net Backhaul):
----------------------------------------------------------------------------
StanSEG - Total Capacity
ClemSEG - Total Capacity
HartSEG - Total Capacity
HampSEG - Total Capacity
CorinSEG – 2,325,000
BannSEG - Total Capacity
InvrnSEG - Total Capacity
ShelSEG - Total Capacity
DelhiSEG - Total Capacity
AlexSEG - 2,450,000
RayneSEG - Total Capacity
WLSEG - Total Capacity
ELSEG - Total Capacity
EL300SEG - Total Capacity
HoumaSEG - Total Capacity
----------------------------------------------------------------------------
INTERNAL CONSTRAINTS-- Total Capacity (Net Forwardhaul):
----------------------------------------------------------------------------
StanSEG - Total Capacity
ClemSEG - Total Capacity
HartSEG - Total Capacity
HampSEG - Total Capacity
CorinSEG - Total Capacity
BannSEG - Total Capacity
InvrnSEG - Total Capacity
ShelSEG - Total Capacity
DelhiSEG - Total Capacity
AlexSEG - Total Capacity
RayneSEG - Total Capacity
WLSEG - Total Capacity
ELSEG - Total Capacity
EL300SEG - Total Capacity
HoumaSEG - Total Capacity
----------------------------------------------------------------------------
POINT CONSTRAINTS -- Total Capacity:
----------------------------------------------------------------------------
Note: Points listed are controlled by less than meter capacity.
401 - CROSSTEX-GIBSON - 0
445 - TRANSCO / TERREBONNE - 0
481 - SEA ROBIN-ERATH – 0
3194 - TETCO ADAIR CO., KY (Receipts) - Total Capacity (Primary Only)
4051 - LAFAYETTE - ACADIA - Total Capacity (Primary Only)
4078 - SONAT-SHADYSIDE - Total Capacity (Primary Only)
4098 - BURLINGTON - TERREBONNE - 0
4118 - FLORIDA GAS - Total Capacity (Primary Only)
4123 - EGAN STOR-ACADIA-REC (Receipts and Deliveries) - 370,000
4137 - CLECO-TECHE - Total Capacity (Primary Only)
4186 - DISCOVERY GAS TRANSMISSION (Deliveries) - Total Capacity (Primary Only)
* 4203 – CENTERPOINT (Receipts) - Total Capacity * (Primary Only)
4208R - SOUTHEASTERN SUPPLY HEADER (SESH) - Receipt - 0
4222 - Texas Gas (Isola) - 0
4252 - CGT Winnsboro – 0
----------------------------------------------------------------------------
DUE PIPE AND DUE SHIPPER AVAILABILITY:
----------------------------------------------------------------------------
Due Pipe - Available
Due Shipper – Not Available
============================================================================
============================================================================
PAL & IT BUSINESS
Representatives are available on a daily basis to discuss PAL transactions with customers who have executed master PAL service agreements. (Reminder: Each PAL transaction including rate, term, quantity and point(s) must be provided for and approved on the Appendix A under the Master PAL Agreement). Customers who are interested in PAL transactions for next-day or longer-term park and/or lend transactions or daily discounted IT paths should contact Diana Roberts at 832-758-0900 (ICE droberts6) or Brandon Stewart at 832-320-6103 (ICE bstewart) for more information.
----------------------------------------------------------------------------
AUTO PAL AVAILABILITY:
----------------------------------------------------------------------------
Effective with EVENING Cycle for each Gas Day, Auto Parks will be limited to 25,000 Dth and Auto Loans will be limited to 3,000 Dth. Customers are reminded the intent of AutoPAL service is to utilize nominal quantities to resolve pool imbalances that result from upstream or downstream reductions during the cycle. This service should not be used for parking or loaning large quantities (Critical Notice ID 25974525).
AutoPAL Parks and Loan Payback - Available
AutoPAL Loans and Unparks - Available
* Denotes a change from previous posting.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
Notice Type Description: Capacity Constraint
Notice Stat Desc: Initiate
Prior Notice:
Critical: Y
Reqrd Rsp Desc: No Response Required
Post
Notice Effective
Notice End
Response
Post Date: 01/22/26
01/22/26
02/22/26 7:19:32 AM
12:00:00 AM
12:00:00 AM
Subject: CAPACITY POSTING - TIM for January 23, 2026
Author: Tom Koontz
Notice Text:
COLUMBIA GULF TRANSMISSION, LLC DAILY CAPACITY POSTING
Columbia Gulf Transmission LLC (CGT) posts projections of anticipated restrictions at least 24 hours prior to the time when nominations are due. These advance forecasts are subject to change based on actual operating conditions. Customers should submit nominations for Timely Cycle to determine whether the service is available under current conditions.
============================================================================
============================================================================
FORCE MAJEURE / OFO
No Force Majeure is necessary.
No Operational Flow Order (OFO) is necessary.
============================================================================
============================================================================
Customers are encouraged to monitor scheduled volumes on the Operationally Available Capacity (OAC) screen on Navigates Informational Postings, as nominations may fluctuate based on market conditions.
============================================================================
============================================================================
----------------------------------------------------------------------------
INTERNAL CONSTRAINTS-- Total Capacity (Net Backhaul):
----------------------------------------------------------------------------
StanSEG - Total Capacity
ClemSEG - Total Capacity
HartSEG - Total Capacity
HampSEG - Total Capacity
CorinSEG – 2,325,000
BannSEG - Total Capacity
InvrnSEG - Total Capacity
ShelSEG - Total Capacity
DelhiSEG - Total Capacity
AlexSEG - 2,450,000
RayneSEG - Total Capacity
WLSEG - Total Capacity
ELSEG - Total Capacity
EL300SEG - Total Capacity
HoumaSEG - Total Capacity
----------------------------------------------------------------------------
INTERNAL CONSTRAINTS-- Total Capacity (Net Forwardhaul):
----------------------------------------------------------------------------
StanSEG - Total Capacity
ClemSEG - Total Capacity
HartSEG - Total Capacity
HampSEG - Total Capacity
CorinSEG - Total Capacity
BannSEG - Total Capacity
InvrnSEG - Total Capacity
ShelSEG - Total Capacity
DelhiSEG - Total Capacity
AlexSEG - Total Capacity
RayneSEG - Total Capacity
WLSEG - Total Capacity
ELSEG - Total Capacity
EL300SEG - Total Capacity
HoumaSEG - Total Capacity
----------------------------------------------------------------------------
POINT CONSTRAINTS -- Total Capacity:
----------------------------------------------------------------------------
Note: Points listed are controlled by less than meter capacity.
401 - CROSSTEX-GIBSON - 0
445 - TRANSCO / TERREBONNE - 0
481 - SEA ROBIN-ERATH – 0
3194 - TETCO ADAIR CO., KY (Receipts) - Total Capacity (Primary Only)
4051 - LAFAYETTE - ACADIA - Total Capacity (Primary Only)
4078 - SONAT-SHADYSIDE - Total Capacity (Primary Only)
4098 - BURLINGTON - TERREBONNE - 0
4118 - FLORIDA GAS - Total Capacity (Primary Only)
4123 - EGAN STOR-ACADIA-REC (Receipts and Deliveries) - 370,000
4137 - CLECO-TECHE - Total Capacity (Primary Only)
4186 - DISCOVERY GAS TRANSMISSION (Deliveries) - Total Capacity (Primary Only)
4208R - SOUTHEASTERN SUPPLY HEADER (SESH) - Receipt - 0
4222 - Texas Gas (Isola) - 0
4252 - CGT Winnsboro – 0
----------------------------------------------------------------------------
DUE PIPE AND DUE SHIPPER AVAILABILITY:
----------------------------------------------------------------------------
Due Pipe - Available
Due Shipper – Not Available
============================================================================
============================================================================
PAL & IT BUSINESS
Representatives are available on a daily basis to discuss PAL transactions with customers who have executed master PAL service agreements. (Reminder: Each PAL transaction including rate, term, quantity and point(s) must be provided for and approved on the Appendix A under the Master PAL Agreement). Customers who are interested in PAL transactions for next-day or longer-term park and/or lend transactions or daily discounted IT paths should contact Diana Roberts at 832-758-0900 (ICE droberts6) or Brandon Stewart at 832-320-6103 (ICE bstewart) for more information.
----------------------------------------------------------------------------
AUTO PAL AVAILABILITY:
----------------------------------------------------------------------------
* Effective with EVENING Cycle for each Gas Day, Auto Parks will be limited to * 25,000 Dth and Auto Loans will be limited to * 3,000 Dth. Customers are reminded the intent of AutoPAL service is to utilize nominal quantities to resolve pool imbalances that result from upstream or downstream reductions during the cycle. This service should not be used for parking or loaning large quantities (Critical Notice ID 25974525).
AutoPAL Parks and Loan Payback - Available
AutoPAL Loans and Unparks - Available
* Denotes a change from previous posting.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
Notice Type Description: Maintenance
Notice Stat Desc: Initiate
Prior Notice:
Critical: Y
Reqrd Rsp Desc: No Response Required
Post
Notice Effective
Notice End
Response
Post Date: 01/21/26
01/21/26
02/21/26 2:20:13 PM
12:00:00 AM
12:00:00 AM
Subject: Construction and Maintenance Schedule Posting
Author: Dillon Schoolcraft
Notice Text:
As a courtesy, Columbia Gulf Transmission, LLC (CGT) hereby notifies customers the Construction and Maintenance Schedule posted under "Construction and Maintenance" on the Informational Postings website has been updated. CGT reminds customers to please check the Maintenance Schedule on a regular basis.
The current schedule has been updated to reflect maintenance activity on the following:
* Revised dates – Mainline-200 Pigging from Corinth Compressor Station to Banner Compressor Station – January 27 – February 4, 2026 (Previously scheduled for January 22-30, 2026)
* ERATH Line 400 Pipeline Maintenance – February 16-20, 2026
* Mainline-200 Pigging from Leach to Stanton Compressor Station – May 30 – June 6, 2026
* Mainline-200 Pigging from Delhi Compressor Station to Alexandria Compressor Station – October 14-16, 2026
* Mainline-200 Pigging from Hartsville Compressor Station to Hampshire Compressor Station – November 16-21, 2026
Additionally, the following file(s) can be located on Informational Postings under Construction and Maintenance
CGT Construction and Maintenance Schedule 01-21-2026.pdf
Columbia Gulf Transmission (CGT)
Operational Alert – Updated AutoPAL Limits, Effective January 23, 2026
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
Notice Type Description: Operational Alert
Notice Stat Desc: Initiate
Prior Notice:
Critical: Y
Reqrd Rsp Desc: No Response Required
Post
Notice Effective
Notice End
Response
Post Date: 01/21/26
01/21/26
02/21/26 8:41:24 AM
12:00:00 AM
12:00:00 AM
Subject: Operational Alert – Updated AutoPAL Limits, Effective January 23, 2026
Author: Tyler King
Notice Text:
Columbia Gulf Transmission, LLC (CGT) notifies customers that based on forecasted colder temperatures and increased market demand across the system, a change to the AutoPAL limits is necessary. Effective Evening Cycle for Gas Day Friday, January 23, 2026, and continuing until further notice, the following AutoPAL limits will be implemented:
AutoPAL Parks: 25,000 Dth (currently 5,000 Dth)
AutoPAL Loans: 3,000 Dth (currently 5,000 Dth)
As a reminder, these limits will be applied to each pool (P20, P30) beginning with the Evening Cycle for each Gas Day. AutoPAL quantities in excess of the posted limits will be force-balanced based on each pool’s rankings. Therefore, customers are encouraged to update their pool rankings accordingly.
Please continue to monitor the AutoPAL availability, which is located at the bottom of CGT’s Daily Capacity Posting, and contact your Customer Services Representative with any questions.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
Notice Type Description: Capacity Constraint
Notice Stat Desc: Initiate
Prior Notice:
Critical: Y
Reqrd Rsp Desc: No Response Required
Post
Notice Effective
Notice End
Response
Post Date: 01/21/26
01/21/26
02/21/26 7:16:23 AM
12:00:00 AM
12:00:00 AM
Subject: CAPACITY POSTING - TIM for January 22, 2026
Author: Tom Koontz
Notice Text:
COLUMBIA GULF TRANSMISSION, LLC DAILY CAPACITY POSTING
Columbia Gulf Transmission LLC (CGT) posts projections of anticipated restrictions at least 24 hours prior to the time when nominations are due. These advance forecasts are subject to change based on actual operating conditions. Customers should submit nominations for Timely Cycle to determine whether the service is available under current conditions.
============================================================================
============================================================================
FORCE MAJEURE / OFO
No Force Majeure is necessary.
No Operational Flow Order (OFO) is necessary.
============================================================================
============================================================================
Customers are encouraged to monitor scheduled volumes on the Operationally Available Capacity (OAC) screen on Navigates Informational Postings, as nominations may fluctuate based on market conditions.
============================================================================
============================================================================
----------------------------------------------------------------------------
INTERNAL CONSTRAINTS-- Total Capacity (Net Backhaul):
----------------------------------------------------------------------------
StanSEG - Total Capacity
ClemSEG - Total Capacity
HartSEG - Total Capacity
HampSEG - Total Capacity
* CorinSEG – * 2,250,000
BannSEG - Total Capacity
InvrnSEG - Total Capacity
ShelSEG - Total Capacity
DelhiSEG - Total Capacity
AlexSEG - 2,450,000
RayneSEG - Total Capacity
WLSEG - Total Capacity
ELSEG - Total Capacity
EL300SEG - Total Capacity
HoumaSEG - Total Capacity
----------------------------------------------------------------------------
INTERNAL CONSTRAINTS-- Total Capacity (Net Forwardhaul):
----------------------------------------------------------------------------
StanSEG - Total Capacity
ClemSEG - Total Capacity
HartSEG - Total Capacity
HampSEG - Total Capacity
CorinSEG - Total Capacity
BannSEG - Total Capacity
InvrnSEG - Total Capacity
ShelSEG - Total Capacity
DelhiSEG - Total Capacity
AlexSEG - Total Capacity
RayneSEG - Total Capacity
WLSEG - Total Capacity
ELSEG - Total Capacity
EL300SEG - Total Capacity
HoumaSEG - Total Capacity
----------------------------------------------------------------------------
POINT CONSTRAINTS -- Total Capacity:
----------------------------------------------------------------------------
Note: Points listed are controlled by less than meter capacity.
401 - CROSSTEX-GIBSON - 0
445 - TRANSCO / TERREBONNE - 0
481 - SEA ROBIN-ERATH – 0
3194 - TETCO ADAIR CO., KY (Receipts) - Total Capacity (Primary Only)
4051 - LAFAYETTE - ACADIA - Total Capacity (Primary Only)
4078 - SONAT-SHADYSIDE - Total Capacity (Primary Only)
4098 - BURLINGTON - TERREBONNE - 0
4118 - FLORIDA GAS - Total Capacity (Primary Only)
4123 - EGAN STOR-ACADIA-REC (Receipts and Deliveries) - 370,000
4137 - CLECO-TECHE - Total Capacity (Primary Only)
4186 - DISCOVERY GAS TRANSMISSION (Deliveries) - Total Capacity (Primary Only)
4208R - SOUTHEASTERN SUPPLY HEADER (SESH) - Receipt - 0
4222 - Texas Gas (Isola) - 0
4252 - CGT Winnsboro – 0
----------------------------------------------------------------------------
DUE PIPE AND DUE SHIPPER AVAILABILITY:
----------------------------------------------------------------------------
Due Pipe - Available
Due Shipper – Not Available
============================================================================
============================================================================
PAL & IT BUSINESS
Representatives are available on a daily basis to discuss PAL transactions with customers who have executed master PAL service agreements. (Reminder: Each PAL transaction including rate, term, quantity and point(s) must be provided for and approved on the Appendix A under the Master PAL Agreement). Customers who are interested in PAL transactions for next-day or longer-term park and/or lend transactions or daily discounted IT paths should contact Diana Roberts at 832-758-0900 (ICE droberts6) or Brandon Stewart at 832-320-6103 (ICE bstewart) for more information.
----------------------------------------------------------------------------
AUTO PAL AVAILABILITY:
----------------------------------------------------------------------------
Effective with EVENING Cycle for each Gas Day, Auto Parks/Loans will be limited to +/- 5,000 Dth. Customers are reminded the intent of AutoPAL service is to utilize nominal quantities to resolve pool imbalances that result from upstream or downstream reductions during the cycle. This service should not be used for parking or loaning large quantities (Critical Notice ID 25786320).
AutoPAL Parks and Loan Payback - Available
AutoPAL Loans and Unparks - Available
* Denotes a change from previous posting.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
Notice Type Description: Capacity Constraint
Notice Stat Desc: Initiate
Prior Notice:
Critical: Y
Reqrd Rsp Desc: No Response Required
Post
Notice Effective
Notice End
Response
Post Date: 01/20/26
01/20/26
02/20/26 7:08:46 AM
12:00:00 AM
12:00:00 AM
Subject: CAPACITY POSTING - TIM for January 21, 2026
Author: Tom Koontz
Notice Text:
COLUMBIA GULF TRANSMISSION, LLC DAILY CAPACITY POSTING
Columbia Gulf Transmission LLC (CGT) posts projections of anticipated restrictions at least 24 hours prior to the time when nominations are due. These advance forecasts are subject to change based on actual operating conditions. Customers should submit nominations for Timely Cycle to determine whether the service is available under current conditions.
============================================================================
============================================================================
FORCE MAJEURE / OFO
No Force Majeure is necessary.
No Operational Flow Order (OFO) is necessary.
============================================================================
============================================================================
Customers are encouraged to monitor scheduled volumes on the Operationally Available Capacity (OAC) screen on Navigates Informational Postings, as nominations may fluctuate based on market conditions.
============================================================================
============================================================================
----------------------------------------------------------------------------
INTERNAL CONSTRAINTS-- Total Capacity (Net Backhaul):
----------------------------------------------------------------------------
StanSEG - Total Capacity
ClemSEG - Total Capacity
HartSEG - Total Capacity
HampSEG - Total Capacity
CorinSEG – 2,325,000
BannSEG - Total Capacity
InvrnSEG - Total Capacity
ShelSEG - Total Capacity
DelhiSEG - Total Capacity
* AlexSEG - * 2,450,000
RayneSEG - Total Capacity
WLSEG - Total Capacity
ELSEG - Total Capacity
EL300SEG - Total Capacity
HoumaSEG - Total Capacity
----------------------------------------------------------------------------
INTERNAL CONSTRAINTS-- Total Capacity (Net Forwardhaul):
----------------------------------------------------------------------------
StanSEG - Total Capacity
ClemSEG - Total Capacity
HartSEG - Total Capacity
HampSEG - Total Capacity
CorinSEG - Total Capacity
BannSEG - Total Capacity
InvrnSEG - Total Capacity
ShelSEG - Total Capacity
DelhiSEG - Total Capacity
AlexSEG - Total Capacity
RayneSEG - Total Capacity
WLSEG - Total Capacity
ELSEG - Total Capacity
EL300SEG - Total Capacity
HoumaSEG - Total Capacity
----------------------------------------------------------------------------
POINT CONSTRAINTS -- Total Capacity:
----------------------------------------------------------------------------
Note: Points listed are controlled by less than meter capacity.
401 - CROSSTEX-GIBSON - 0
445 - TRANSCO / TERREBONNE - 0
481 - SEA ROBIN-ERATH – 0
3194 - TETCO ADAIR CO., KY (Receipts) - Total Capacity (Primary Only)
4051 - LAFAYETTE - ACADIA - Total Capacity (Primary Only)
4078 - SONAT-SHADYSIDE - Total Capacity (Primary Only)
4098 - BURLINGTON - TERREBONNE - 0
4118 - FLORIDA GAS - Total Capacity (Primary Only)
4123 - EGAN STOR-ACADIA-REC (Receipts and Deliveries) - 370,000
4137 - CLECO-TECHE - Total Capacity (Primary Only)
4186 - DISCOVERY GAS TRANSMISSION (Deliveries) - Total Capacity (Primary Only)
4208R - SOUTHEASTERN SUPPLY HEADER (SESH) - Receipt - 0
4222 - Texas Gas (Isola) - 0
4252 - CGT Winnsboro – 0
----------------------------------------------------------------------------
DUE PIPE AND DUE SHIPPER AVAILABILITY:
----------------------------------------------------------------------------
Due Pipe - Available
Due Shipper – Not Available
============================================================================
============================================================================
PAL & IT BUSINESS
Representatives are available on a daily basis to discuss PAL transactions with customers who have executed master PAL service agreements. (Reminder: Each PAL transaction including rate, term, quantity and point(s) must be provided for and approved on the Appendix A under the Master PAL Agreement). Customers who are interested in PAL transactions for next-day or longer-term park and/or lend transactions or daily discounted IT paths should contact Diana Roberts at 832-758-0900 (ICE droberts6) or Brandon Stewart at 832-320-6103 (ICE bstewart) for more information.
----------------------------------------------------------------------------
AUTO PAL AVAILABILITY:
----------------------------------------------------------------------------
Effective with EVENING Cycle for each Gas Day, Auto Parks/Loans will be limited to +/- 5,000 Dth. Customers are reminded the intent of AutoPAL service is to utilize nominal quantities to resolve pool imbalances that result from upstream or downstream reductions during the cycle. This service should not be used for parking or loaning large quantities (Critical Notice ID 25786320).
AutoPAL Parks and Loan Payback - Available
AutoPAL Loans and Unparks - Available
* Denotes a change from previous posting.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
TSP Name Columbia Gulf Transmission, LLC
TSP 007854581
Notice Type Description: Capacity Constraint
Notice Stat Desc: Initiate
Prior Notice:
Critical: Y
Reqrd Rsp Desc: No Response Required
Post
Notice Effective
Notice End
Response
Post Date: 07/07/26
07/07/26
08/07/26
Subject: Subject: CAPACITY POSTING - TIM for July 8, 2026
Author: Author: Dillon Schoolcraft
Notice Text
COLUMBIA GULF TRANSMISSION, LLC DAILY CAPACITY POSTING
Columbia Gulf Transmission LLC (CGT) posts projections of anticipated restrictions at least 24 hours prior to the time when nominations are due. These advance forecasts are subject to change based on actual operating conditions. Customers should submit nominations for Timely Cycle to determine whether the service is available under current conditions.
============================================================================
============================================================================
FORCE MAJEURE / OFO
A Force Majeure was declared effective June 19, 2026, at Corinth Compressor Station Unit 505. Please see UPDATED Critical Notice ID 26092010 posted on June 30, 2026, for details.
No Operational Flow Order (OFO) is necessary.
============================================================================
============================================================================
Customers are encouraged to monitor scheduled volumes on the Operationally Available Capacity (OAC) screen on Navigates Informational Postings, as nominations may fluctuate based on market conditions.
============================================================================
============================================================================
----------------------------------------------------------------------------
INTERNAL CONSTRAINTS-- Total Capacity (Net Backhaul):
----------------------------------------------------------------------------
StanSEG - Total Capacity
ClemSEG - Total Capacity
HartSEG - Total Capacity
HampSEG - Total Capacity
CorinSEG - 2,350,000
* BannSEG - * 2,400,000
InvrnSEG - Total Capacity
ShelSEG - Total Capacity
DelhiSEG - Total Capacity
* AlexSEG - * 2,450,000
RayneSEG - Total Capacity
WLSEG - Total Capacity
ELSEG - Total Capacity
EL300SEG - Total Capacity
HoumaSEG - Total Capacity
----------------------------------------------------------------------------
INTERNAL CONSTRAINTS-- Total Capacity (Net Forwardhaul):
----------------------------------------------------------------------------
StanSEG - Total Capacity
ClemSEG - Total Capacity
HartSEG - Total Capacity
HampSEG - Total Capacity
CorinSEG - Total Capacity
BannSEG - Total Capacity
InvrnSEG - Total Capacity
ShelSEG - Total Capacity
DelhiSEG - Total Capacity
AlexSEG - Total Capacity
RayneSEG - Total Capacity
WLSEG - Total Capacity
ELSEG - Total Capacity
EL300SEG - Total Capacity
HoumaSEG - Total Capacity
----------------------------------------------------------------------------
POINT CONSTRAINTS -- Total Capacity:
----------------------------------------------------------------------------
Note: Points listed are controlled by less than meter capacity.
401 - CROSSTEX-GIBSON - 0
445 - TRANSCO / TERREBONNE - 0
481 - SEA ROBIN-ERATH - 0
3194 - TETCO ADAIR CO., KY (Receipts) - Total Capacity (Primary Only)
4051 - LAFAYETTE - ACADIA - Total Capacity (Primary Only)
4078 - SONAT-SHADYSIDE - Total Capacity (Primary Only)
4098 - BURLINGTON - TERREBONNE - 0
4118 - FLORIDA GAS - Total Capacity (Primary Only)
4123 - EGAN STOR-ACADIA-REC (Receipts and Deliveries) - 370,000
4137 - CLECO-TECHE - Total Capacity (Primary Only)
4186 - DISCOVERY GAS TRANSMISSION (Deliveries) - Total Capacity (Primary Only)
4204D - GULF SOUTH DELHI Delivery - Total Capacity (Primary Only)
4208R - SOUTHEASTERN SUPPLY HEADER (SESH) - Receipt - 0
4221 - GULF CROSSING - Total Capacity (Primary Only)
4222 - Texas Gas (Isola) - 0
4315 - BROADMORE RD (Receipts) - 775,000
5112 - NORAM PERRYVILLE Delivery - Total Capacity (Primary Only)
----------------------------------------------------------------------------
DUE PIPE AND DUE SHIPPER AVAILABILITY:
----------------------------------------------------------------------------
Due Pipe - Available
* Due Shipper - * Not Available
============================================================================
============================================================================
PAL & IT BUSINESS
Representatives are available on a daily basis to discuss PAL transactions with customers who have executed master PAL service agreements. (Reminder: Each PAL transaction including rate, term, quantity and point(s) must be provided for and approved on the Appendix A under the Master PAL Agreement). Customers who are interested in PAL transactions for next-day or longer-term park and/or lend transactions or daily discounted IT paths should contact Diana Roberts at 832-758-0900 (ICE droberts6) or Daniel Junek at 832-320-5825 (ICE djunek4) for more information.
----------------------------------------------------------------------------
AUTO PAL AVAILABILITY:
----------------------------------------------------------------------------
Effective with EVENING Cycle for each Gas Day, Auto Parks/Loans will be limited to +/- 5,000 Dth. Customers are reminded the intent of AutoPAL service is to utilize nominal quantities to resolve pool imbalances that result from upstream or downstream reductions during the cycle. This service should not be used for parking or loaning large quantities.
AutoPAL Parks and Loan Payback - Available
AutoPAL Loans and Unparks - Available
* Denotes a change from previous posting.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
TSP Name Columbia Gulf Transmission, LLC
TSP 007854581
Notice Type Description: Maintenance
Notice Stat Desc: Initiate
Prior Notice:
Critical: Y
Reqrd Rsp Desc: No Response Required
Post
Notice Effective
Notice End
Response
Post Date: 07/06/26
07/06/26
08/06/26
Subject: Subject: Construction and Maintenance Schedule Posting
Author: Author: Dillon Schoolcraft
Notice Text
As a courtesy, Columbia Gulf Transmission, LLC (CGT) hereby notifies customers the Construction and Maintenance Schedule posted under "Construction and Maintenance" on the Informational Postings website has been updated. CGT reminds customers to please check the Maintenance Schedule on a regular basis.
The current schedule has been updated to reflect maintenance activity on the following:
* Revised posted capacity – Alexandria Compressor Station Maintenance – July 10, 2026
* Revised dates – Ridgeline Tie-In’s (4166) – July 14-23, 2026 (Previously scheduled for July 21-31, 2026)
* Clementsville ESD Testing – August 11-12, 2026
* Revised end date – Venice MS 595 Rebuild – August 18 – September 24, 2026 (Previously scheduled to end on September 15, 2026)
* Revised dates - Means LDAR valve repair – August 27 – September 1, 2026 (Previously scheduled for July 8-31, 2026)
* Revised dates – Hartsville Compressor Station Maintenance – September 9-30, 2026 (Previously scheduled for August 4-18, 2026)
* Revised end date – Mainline-100 Casey Creek Pipeline Maintenance – September 9-28, 2026 (Previously scheduled to end on September 26, 2026)
Additionally, the following file(s) can be located on Informational Postings under Construction and Maintenance
CGT Construction and Maintenance Schedule 07-06-2026.pdf
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
TSP Name Columbia Gulf Transmission, LLC
TSP 007854581
Notice Type Description: Capacity Constraint
Notice Stat Desc: Initiate
Prior Notice:
Critical: Y
Reqrd Rsp Desc: No Response Required
Post
Notice Effective
Notice End
Response
Post Date: 07/08/26
07/08/26
08/08/26
Subject: Subject: CAPACITY POSTING - TIM for July 9, 2026
Author: Author: Dillon Schoolcraft
Notice Text
COLUMBIA GULF TRANSMISSION, LLC DAILY CAPACITY POSTING
Columbia Gulf Transmission LLC (CGT) posts projections of anticipated restrictions at least 24 hours prior to the time when nominations are due. These advance forecasts are subject to change based on actual operating conditions. Customers should submit nominations for Timely Cycle to determine whether the service is available under current conditions.
============================================================================
============================================================================
FORCE MAJEURE / OFO
A Force Majeure was declared effective June 19, 2026, at Corinth Compressor Station Unit 505. Please see UPDATED Critical Notice ID 26092010 posted on June 30, 2026, for details.
No Operational Flow Order (OFO) is necessary.
============================================================================
============================================================================
Customers are encouraged to monitor scheduled volumes on the Operationally Available Capacity (OAC) screen on Navigates Informational Postings, as nominations may fluctuate based on market conditions.
============================================================================
============================================================================
----------------------------------------------------------------------------
INTERNAL CONSTRAINTS-- Total Capacity (Net Backhaul):
----------------------------------------------------------------------------
StanSEG - Total Capacity
ClemSEG - Total Capacity
HartSEG - Total Capacity
HampSEG - Total Capacity
CorinSEG - 2,350,000
BannSEG - 2,400,000
InvrnSEG - Total Capacity
ShelSEG - Total Capacity
DelhiSEG - Total Capacity
AlexSEG - 2,450,000
RayneSEG - Total Capacity
WLSEG - Total Capacity
ELSEG - Total Capacity
EL300SEG - Total Capacity
HoumaSEG - Total Capacity
----------------------------------------------------------------------------
INTERNAL CONSTRAINTS-- Total Capacity (Net Forwardhaul):
----------------------------------------------------------------------------
StanSEG - Total Capacity
ClemSEG - Total Capacity
HartSEG - Total Capacity
HampSEG - Total Capacity
CorinSEG - Total Capacity
BannSEG - Total Capacity
InvrnSEG - Total Capacity
ShelSEG - Total Capacity
DelhiSEG - Total Capacity
AlexSEG - Total Capacity
RayneSEG - Total Capacity
WLSEG - Total Capacity
ELSEG - Total Capacity
EL300SEG - Total Capacity
HoumaSEG - Total Capacity
----------------------------------------------------------------------------
POINT CONSTRAINTS -- Total Capacity:
----------------------------------------------------------------------------
Note: Points listed are controlled by less than meter capacity.
401 - CROSSTEX-GIBSON - 0
445 - TRANSCO / TERREBONNE - 0
481 - SEA ROBIN-ERATH - 0
3194 - TETCO ADAIR CO., KY (Receipts) - Total Capacity (Primary Only)
4051 - LAFAYETTE - ACADIA - Total Capacity (Primary Only)
4078 - SONAT-SHADYSIDE - Total Capacity (Primary Only)
4098 - BURLINGTON - TERREBONNE - 0
4118 - FLORIDA GAS - Total Capacity (Primary Only)
4123 - EGAN STOR-ACADIA-REC (Receipts and Deliveries) - 370,000
4137 - CLECO-TECHE - Total Capacity (Primary Only)
4186 - DISCOVERY GAS TRANSMISSION (Deliveries) - Total Capacity (Primary Only)
4204D - GULF SOUTH DELHI Delivery - Total Capacity (Primary Only)
4208R - SOUTHEASTERN SUPPLY HEADER (SESH) - Receipt - 0
4221 - GULF CROSSING - Total Capacity (Primary Only)
4222 - Texas Gas (Isola) - 0
4315 - BROADMORE RD (Receipts) - 775,000
5112 - NORAM PERRYVILLE Delivery - Total Capacity (Primary Only)
----------------------------------------------------------------------------
DUE PIPE AND DUE SHIPPER AVAILABILITY:
----------------------------------------------------------------------------
Due Pipe - Available
Due Shipper - Not Available
============================================================================
============================================================================
PAL & IT BUSINESS
Representatives are available on a daily basis to discuss PAL transactions with customers who have executed master PAL service agreements. (Reminder: Each PAL transaction including rate, term, quantity and point(s) must be provided for and approved on the Appendix A under the Master PAL Agreement). Customers who are interested in PAL transactions for next-day or longer-term park and/or lend transactions or daily discounted IT paths should contact Diana Roberts at 832-758-0900 (ICE droberts6) or Daniel Junek at 832-320-5825 (ICE djunek4) for more information.
----------------------------------------------------------------------------
AUTO PAL AVAILABILITY:
----------------------------------------------------------------------------
Effective with EVENING Cycle for each Gas Day, Auto Parks/Loans will be limited to +/- 5,000 Dth. Customers are reminded the intent of AutoPAL service is to utilize nominal quantities to resolve pool imbalances that result from upstream or downstream reductions during the cycle. This service should not be used for parking or loaning large quantities.
AutoPAL Parks and Loan Payback - Available
AutoPAL Loans and Unparks - Available
* Denotes a change from previous posting.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
TSP Name Columbia Gulf Transmission, LLC
TSP 007854581
Notice Type Description: Capacity Constraint
Notice Stat Desc: Initiate
Prior Notice:
Critical: Y
Reqrd Rsp Desc: No Response Required
Post
Notice Effective
Notice End
Response
Post Date: 07/09/26
07/09/26
08/09/26
Subject: Subject: CAPACITY POSTING - TIM for July 10, 2026
Author: Author: Dillon Schoolcraft
Notice Text
COLUMBIA GULF TRANSMISSION, LLC DAILY CAPACITY POSTING
Columbia Gulf Transmission LLC (CGT) posts projections of anticipated restrictions at least 24 hours prior to the time when nominations are due. These advance forecasts are subject to change based on actual operating conditions. Customers should submit nominations for Timely Cycle to determine whether the service is available under current conditions.
============================================================================
============================================================================
FORCE MAJEURE / OFO
A Force Majeure was declared effective June 19, 2026, at Corinth Compressor Station Unit 505. Please see UPDATED Critical Notice ID 26092010 posted on June 30, 2026, for details.
No Operational Flow Order (OFO) is necessary.
============================================================================
============================================================================
Customers are encouraged to monitor scheduled volumes on the Operationally Available Capacity (OAC) screen on Navigates Informational Postings, as nominations may fluctuate based on market conditions.
============================================================================
============================================================================
----------------------------------------------------------------------------
INTERNAL CONSTRAINTS-- Total Capacity (Net Backhaul):
----------------------------------------------------------------------------
StanSEG - Total Capacity
ClemSEG - Total Capacity
HartSEG - Total Capacity
HampSEG - Total Capacity
CorinSEG - 2,350,000
BannSEG - 2,400,000
InvrnSEG - Total Capacity
ShelSEG - Total Capacity
DelhiSEG - Total Capacity
AlexSEG - 2,450,000
RayneSEG - Total Capacity
WLSEG - Total Capacity
ELSEG - Total Capacity
EL300SEG - Total Capacity
HoumaSEG - Total Capacity
----------------------------------------------------------------------------
INTERNAL CONSTRAINTS-- Total Capacity (Net Forwardhaul):
----------------------------------------------------------------------------
StanSEG - Total Capacity
ClemSEG - Total Capacity
HartSEG - Total Capacity
HampSEG - Total Capacity
CorinSEG - Total Capacity
BannSEG - Total Capacity
InvrnSEG - Total Capacity
ShelSEG - Total Capacity
DelhiSEG - Total Capacity
AlexSEG - Total Capacity
RayneSEG - Total Capacity
WLSEG - Total Capacity
ELSEG - Total Capacity
EL300SEG - Total Capacity
HoumaSEG - Total Capacity
----------------------------------------------------------------------------
POINT CONSTRAINTS -- Total Capacity:
----------------------------------------------------------------------------
Note: Points listed are controlled by less than meter capacity.
401 - CROSSTEX-GIBSON - 0
445 - TRANSCO / TERREBONNE - 0
481 - SEA ROBIN-ERATH - 0
3194 - TETCO ADAIR CO., KY (Receipts) - Total Capacity (Primary Only)
4051 - LAFAYETTE - ACADIA - Total Capacity (Primary Only)
4078 - SONAT-SHADYSIDE - Total Capacity (Primary Only)
4098 - BURLINGTON - TERREBONNE - 0
4118 - FLORIDA GAS - Total Capacity (Primary Only)
4123 - EGAN STOR-ACADIA-REC (Receipts and Deliveries) - 370,000
4137 - CLECO-TECHE - Total Capacity (Primary Only)
4186 - DISCOVERY GAS TRANSMISSION (Deliveries) - Total Capacity (Primary Only)
4204D - GULF SOUTH DELHI Delivery - Total Capacity (Primary Only)
4208R - SOUTHEASTERN SUPPLY HEADER (SESH) - Receipt - 0
4221 - GULF CROSSING - Total Capacity (Primary Only)
4222 - Texas Gas (Isola) - 0
4315 - BROADMORE RD (Receipts) - 775,000
5112 - NORAM PERRYVILLE Delivery - Total Capacity (Primary Only)
----------------------------------------------------------------------------
DUE PIPE AND DUE SHIPPER AVAILABILITY:
----------------------------------------------------------------------------
Due Pipe - Available
Due Shipper - Not Available
============================================================================
============================================================================
PAL & IT BUSINESS
Representatives are available on a daily basis to discuss PAL transactions with customers who have executed master PAL service agreements. (Reminder: Each PAL transaction including rate, term, quantity and point(s) must be provided for and approved on the Appendix A under the Master PAL Agreement). Customers who are interested in PAL transactions for next-day or longer-term park and/or lend transactions or daily discounted IT paths should contact Diana Roberts at 832-758-0900 (ICE droberts6) or Daniel Junek at 832-320-5825 (ICE djunek4) for more information.
----------------------------------------------------------------------------
AUTO PAL AVAILABILITY:
----------------------------------------------------------------------------
Effective with EVENING Cycle for each Gas Day, Auto Parks/Loans will be limited to +/- 5,000 Dth. Customers are reminded the intent of AutoPAL service is to utilize nominal quantities to resolve pool imbalances that result from upstream or downstream reductions during the cycle. This service should not be used for parking or loaning large quantities.
AutoPAL Parks and Loan Payback - Available
AutoPAL Loans and Unparks - Available
* Denotes a change from previous posting.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
TSP Name Columbia Gulf Transmission, LLC
TSP 007854581
Notice Type Description: Capacity Constraint
Notice Stat Desc: Initiate
Prior Notice:
Critical: Y
Reqrd Rsp Desc: No Response Required
Post
Notice Effective
Notice End
Response
Post Date: 07/13/26
07/13/26
08/13/26
Subject: Subject: CAPACITY POSTING - TIM for July 14, 2026
Author: Author: Zachery Heaver
Notice Text
COLUMBIA GULF TRANSMISSION, LLC DAILY CAPACITY POSTING
Columbia Gulf Transmission LLC (CGT) posts projections of anticipated restrictions at least 24 hours prior to the time when nominations are due. These advance forecasts are subject to change based on actual operating conditions. Customers should submit nominations for Timely Cycle to determine whether the service is available under current conditions.
============================================================================
============================================================================
FORCE MAJEURE / OFO
A Force Majeure was declared effective June 19, 2026, at Corinth Compressor Station Unit 505. Please see UPDATED Critical Notice ID 26092010 posted on June 30, 2026, for details.
No Operational Flow Order (OFO) is necessary.
============================================================================
============================================================================
Customers are encouraged to monitor scheduled volumes on the Operationally Available Capacity (OAC) screen on Navigates Informational Postings, as nominations may fluctuate based on market conditions.
============================================================================
============================================================================
----------------------------------------------------------------------------
INTERNAL CONSTRAINTS-- Total Capacity (Net Backhaul):
----------------------------------------------------------------------------
StanSEG - Total Capacity
ClemSEG - Total Capacity
*HartSEG – *2,200,000
HampSEG - Total Capacity
CorinSEG - 2,350,000
BannSEG - 2,400,000
InvrnSEG - Total Capacity
ShelSEG - Total Capacity
DelhiSEG - Total Capacity
AlexSEG - Total Capacity
RayneSEG - Total Capacity
WLSEG - Total Capacity
ELSEG - Total Capacity
EL300SEG - Total Capacity
HoumaSEG - Total Capacity
----------------------------------------------------------------------------
INTERNAL CONSTRAINTS-- Total Capacity (Net Forwardhaul):
----------------------------------------------------------------------------
StanSEG - Total Capacity
ClemSEG - Total Capacity
HartSEG - Total Capacity
HampSEG - Total Capacity
CorinSEG - Total Capacity
BannSEG - Total Capacity
InvrnSEG - Total Capacity
ShelSEG - Total Capacity
DelhiSEG - Total Capacity
AlexSEG - Total Capacity
RayneSEG - Total Capacity
WLSEG - Total Capacity
ELSEG - Total Capacity
EL300SEG - Total Capacity
HoumaSEG - Total Capacity
----------------------------------------------------------------------------
POINT CONSTRAINTS -- Total Capacity:
----------------------------------------------------------------------------
Note: Points listed are controlled by less than meter capacity.
401 - CROSSTEX-GIBSON - 0
445 - TRANSCO / TERREBONNE - 0
481 - SEA ROBIN-ERATH - 0
3194 - TETCO ADAIR CO., KY (Receipts) - Total Capacity (Primary Only)
4051 - LAFAYETTE - ACADIA - Total Capacity (Primary Only)
4078 - SONAT-SHADYSIDE - Total Capacity (Primary Only)
4098 - BURLINGTON - TERREBONNE - 0
4118 - FLORIDA GAS - Total Capacity (Primary Only)
4123 - EGAN STOR-ACADIA-REC (Receipts and Deliveries) - 370,000
4137 - CLECO-TECHE - Total Capacity (Primary Only)
4186 - DISCOVERY GAS TRANSMISSION (Deliveries) - Total Capacity (Primary Only)
4204D - GULF SOUTH DELHI Delivery - Total Capacity (Primary Only)
4208R - SOUTHEASTERN SUPPLY HEADER (SESH) - Receipt - 0
4221 - GULF CROSSING - Total Capacity (Primary Only)
4222 - Texas Gas (Isola) - 0
4315 - BROADMORE RD (Receipts) - 775,000
5112 - NORAM PERRYVILLE Delivery - Total Capacity (Primary Only)
----------------------------------------------------------------------------
DUE PIPE AND DUE SHIPPER AVAILABILITY:
----------------------------------------------------------------------------
Due Pipe - Available
Due Shipper - Not Available
============================================================================
============================================================================
PAL & IT BUSINESS
Representatives are available on a daily basis to discuss PAL transactions with customers who have executed master PAL service agreements. (Reminder: Each PAL transaction including rate, term, quantity and point(s) must be provided for and approved on the Appendix A under the Master PAL Agreement). Customers who are interested in PAL transactions for next-day or longer-term park and/or lend transactions or daily discounted IT paths should contact Diana Roberts at 832-758-0900 (ICE droberts6) or Daniel Junek at 832-320-5825 (ICE djunek4) for more information.
----------------------------------------------------------------------------
AUTO PAL AVAILABILITY:
----------------------------------------------------------------------------
Effective with EVENING Cycle for each Gas Day, Auto Parks/Loans will be limited to +/- 5,000 Dth. Customers are reminded the intent of AutoPAL service is to utilize nominal quantities to resolve pool imbalances that result from upstream or downstream reductions during the cycle. This service should not be used for parking or loaning large quantities.
AutoPAL Parks and Loan Payback - Available
AutoPAL Loans and Unparks - Available
* Denotes a change from previous posting.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
TSP Name Columbia Gulf Transmission, LLC
TSP 007854581
Notice Type Description: Capacity Constraint
Notice Stat Desc: Initiate
Prior Notice:
Critical: Y
Reqrd Rsp Desc: No Response Required
Post
Notice Effective
Notice End
Response
Post Date: 07/13/26
07/13/26
08/13/26
Subject: Subject: Construction and Maintenance Schedule Posting
Author: Author: Dillon Schoolcraft
Notice Text
As a courtesy, Columbia Gulf Transmission, LLC (CGT) hereby notifies customers the Construction and Maintenance Schedule posted under "Construction and Maintenance" on the Informational Postings website has been updated. CGT reminds customers to please check the Maintenance Schedule on a regular basis.
The current schedule has been updated to reflect maintenance activity on the following:
* Revised end date – Means LDAR Valve Repairs – August 27 – September 3, 2026 (Previously scheduled to end on September 1, 2026)
* Mainline-200 Pipeline Maintenance – August 27 – September 6, 2026
* Revised dates – Hampshire Compressor Station Maintenance – September 9 – November 25, 2026 (Previously scheduled for August 27 – November 12, 2026)
* Golden Meadow Compressor Station Maintenance – September 29-30, 2026
* Centerville Compressor Station Maintenance – October 6-7, 2026
* Lake Arthur Compressor Station Maintenance – October 13-16, 2026
Additionally, the following file(s) can be located on Informational Postings under Construction and Maintenance
CGT Construction and Maintenance Schedule 7-13-2026.pdf
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
TSP Name Columbia Gulf Transmission, LLC
TSP 007854581
Notice Type Description: Capacity Constraint
Notice Stat Desc: Initiate
Prior Notice:
Critical: Y
Reqrd Rsp Desc: No Response Required
Post
Notice Effective
Notice End
Response
Post Date: 07/14/26
07/14/26
08/14/26
Subject: Subject: CAPACITY POSTING - TIM for July 15, 2026
Author: Author: John Whited
Notice Text
COLUMBIA GULF TRANSMISSION, LLC DAILY CAPACITY POSTING
Columbia Gulf Transmission LLC (CGT) posts projections of anticipated restrictions at least 24 hours prior to the time when nominations are due. These advance forecasts are subject to change based on actual operating conditions. Customers should submit nominations for Timely Cycle to determine whether the service is available under current conditions.
============================================================================
============================================================================
FORCE MAJEURE / OFO
A Force Majeure was declared effective June 19, 2026, at Corinth Compressor Station Unit 505. Please see UPDATED Critical Notice ID 26092010 posted on June 30, 2026, for details.
No Operational Flow Order (OFO) is necessary.
============================================================================
============================================================================
Customers are encouraged to monitor scheduled volumes on the Operationally Available Capacity (OAC) screen on Navigates Informational Postings, as nominations may fluctuate based on market conditions.
============================================================================
============================================================================
----------------------------------------------------------------------------
INTERNAL CONSTRAINTS-- Total Capacity (Net Backhaul):
----------------------------------------------------------------------------
StanSEG - Total Capacity
ClemSEG - Total Capacity
HartSEG - 2,200,000
HampSEG - Total Capacity
CorinSEG - 2,350,000
BannSEG - 2,400,000
InvrnSEG - Total Capacity
ShelSEG - Total Capacity
DelhiSEG - Total Capacity
AlexSEG - Total Capacity
RayneSEG - Total Capacity
WLSEG - Total Capacity
ELSEG - Total Capacity
EL300SEG - Total Capacity
HoumaSEG - Total Capacity
----------------------------------------------------------------------------
INTERNAL CONSTRAINTS-- Total Capacity (Net Forwardhaul):
----------------------------------------------------------------------------
StanSEG - Total Capacity
ClemSEG - Total Capacity
HartSEG - Total Capacity
HampSEG - Total Capacity
CorinSEG - Total Capacity
BannSEG - Total Capacity
InvrnSEG - Total Capacity
ShelSEG - Total Capacity
DelhiSEG - Total Capacity
AlexSEG - Total Capacity
RayneSEG - Total Capacity
WLSEG - Total Capacity
ELSEG - Total Capacity
EL300SEG - Total Capacity
HoumaSEG - Total Capacity
----------------------------------------------------------------------------
POINT CONSTRAINTS -- Total Capacity:
----------------------------------------------------------------------------
Note: Points listed are controlled by less than meter capacity.
401 - CROSSTEX-GIBSON - 0
445 - TRANSCO / TERREBONNE - 0
481 - SEA ROBIN-ERATH - 0
3194 - TETCO ADAIR CO., KY (Receipts) - Total Capacity (Primary Only)
4051 - LAFAYETTE - ACADIA - Total Capacity (Primary Only)
4078 - SONAT-SHADYSIDE - Total Capacity (Primary Only)
4098 - BURLINGTON - TERREBONNE - 0
4118 - FLORIDA GAS - Total Capacity (Primary Only)
4123 - EGAN STOR-ACADIA-REC (Receipts and Deliveries) - 370,000
4137 - CLECO-TECHE - Total Capacity (Primary Only)
4186 - DISCOVERY GAS TRANSMISSION (Deliveries) - Total Capacity (Primary Only)
4204D - GULF SOUTH DELHI Delivery - Total Capacity (Primary Only)
4208R - SOUTHEASTERN SUPPLY HEADER (SESH) - Receipt - 0
4221 - GULF CROSSING - Total Capacity (Primary Only)
4222 - Texas Gas (Isola) - 0
4315 - BROADMORE RD (Receipts) - 775,000
5112 - NORAM PERRYVILLE Delivery - Total Capacity (Primary Only)
----------------------------------------------------------------------------
DUE PIPE AND DUE SHIPPER AVAILABILITY:
----------------------------------------------------------------------------
Due Pipe - Available
Due Shipper - Not Available
============================================================================
============================================================================
PAL & IT BUSINESS
Representatives are available on a daily basis to discuss PAL transactions with customers who have executed master PAL service agreements. (Reminder: Each PAL transaction including rate, term, quantity and point(s) must be provided for and approved on the Appendix A under the Master PAL Agreement). Customers who are interested in PAL transactions for next-day or longer-term park and/or lend transactions or daily discounted IT paths should contact Diana Roberts at 832-758-0900 (ICE droberts6) or Daniel Junek at 832-320-5825 (ICE djunek4) for more information.
----------------------------------------------------------------------------
AUTO PAL AVAILABILITY:
----------------------------------------------------------------------------
Effective with EVENING Cycle for each Gas Day, Auto Parks/Loans will be limited to +/- 5,000 Dth. Customers are reminded the intent of AutoPAL service is to utilize nominal quantities to resolve pool imbalances that result from upstream or downstream reductions during the cycle. This service should not be used for parking or loaning large quantities.
AutoPAL Parks and Loan Payback - Available
AutoPAL Loans and Unparks - Available
* Denotes a change from previous posting.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
TSP Name Columbia Gulf Transmission, LLC
TSP 007854581
Notice Type Description: Maintenance
Notice Stat Desc: Initiate
Prior Notice:
Critical: Y
Reqrd Rsp Desc: No Response Required
Post
Notice Effective
Notice End
Response
Post Date: 07/14/26
07/14/26
08/14/26
Subject: Subject: Construction and Maintenance Schedule Posting
Author: Author: Dillon Schoolcraft
Notice Text
As a courtesy, Columbia Gulf Transmission, LLC (CGT) hereby notifies customers the Construction and Maintenance Schedule posted under "Construction and Maintenance" on the Informational Postings website has been updated. CGT reminds customers to please check the Maintenance Schedule on a regular basis.
The current schedule has been updated to reflect maintenance activity on the following:
* Revised restriction – EL200 Pigging Rayne Compressor Station to VS 1204 – July 28-30, 2026
Additionally, the following file(s) can be located on Informational Postings under Construction and Maintenance
CGT Construction and Maintenance Schedule 7-14-2026.pdf
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
TSP Name Columbia Gulf Transmission, LLC
TSP 007854581
Notice Type Description: Capacity Constraint
Notice Stat Desc: Initiate
Prior Notice:
Critical: Y
Reqrd Rsp Desc: No Response Required
Post
Notice Effective
Notice End
Response
Post Date: 07/15/26
07/15/26
08/15/26
Subject: Subject: CAPACITY POSTING - TIM for July 16, 2026
Author: Author: John Whited
Notice Text
COLUMBIA GULF TRANSMISSION, LLC DAILY CAPACITY POSTING
Columbia Gulf Transmission LLC (CGT) posts projections of anticipated restrictions at least 24 hours prior to the time when nominations are due. These advance forecasts are subject to change based on actual operating conditions. Customers should submit nominations for Timely Cycle to determine whether the service is available under current conditions.
============================================================================
============================================================================
FORCE MAJEURE / OFO
A Force Majeure was declared effective June 19, 2026, at Corinth Compressor Station Unit 505. Please see UPDATED Critical Notice ID 26092010 posted on June 30, 2026, for details.
No Operational Flow Order (OFO) is necessary.
============================================================================
============================================================================
Customers are encouraged to monitor scheduled volumes on the Operationally Available Capacity (OAC) screen on Navigates Informational Postings, as nominations may fluctuate based on market conditions.
============================================================================
============================================================================
----------------------------------------------------------------------------
INTERNAL CONSTRAINTS-- Total Capacity (Net Backhaul):
----------------------------------------------------------------------------
StanSEG - Total Capacity
ClemSEG - Total Capacity
HartSEG - 2,200,000
HampSEG - Total Capacity
CorinSEG - 2,350,000
BannSEG - 2,400,000
InvrnSEG - Total Capacity
ShelSEG - Total Capacity
DelhiSEG - Total Capacity
AlexSEG - Total Capacity
RayneSEG - Total Capacity
WLSEG - Total Capacity
ELSEG - Total Capacity
EL300SEG - Total Capacity
HoumaSEG - Total Capacity
----------------------------------------------------------------------------
INTERNAL CONSTRAINTS-- Total Capacity (Net Forwardhaul):
----------------------------------------------------------------------------
StanSEG - Total Capacity
ClemSEG - Total Capacity
HartSEG - Total Capacity
HampSEG - Total Capacity
CorinSEG - Total Capacity
BannSEG - Total Capacity
InvrnSEG - Total Capacity
ShelSEG - Total Capacity
DelhiSEG - Total Capacity
AlexSEG - Total Capacity
RayneSEG - Total Capacity
WLSEG - Total Capacity
ELSEG - Total Capacity
EL300SEG - Total Capacity
HoumaSEG - Total Capacity
----------------------------------------------------------------------------
POINT CONSTRAINTS -- Total Capacity:
----------------------------------------------------------------------------
Note: Points listed are controlled by less than meter capacity.
401 - CROSSTEX-GIBSON - 0
445 - TRANSCO / TERREBONNE - 0
481 - SEA ROBIN-ERATH - 0
3194 - TETCO ADAIR CO., KY (Receipts) - Total Capacity (Primary Only)
4051 - LAFAYETTE - ACADIA - Total Capacity (Primary Only)
4078 - SONAT-SHADYSIDE - Total Capacity (Primary Only)
4098 - BURLINGTON - TERREBONNE - 0
4118 - FLORIDA GAS - Total Capacity (Primary Only)
4123 - EGAN STOR-ACADIA-REC (Receipts and Deliveries) - 370,000
4137 - CLECO-TECHE - Total Capacity (Primary Only)
4186 - DISCOVERY GAS TRANSMISSION (Deliveries) - Total Capacity (Primary Only)
4204D - GULF SOUTH DELHI Delivery - Total Capacity (Primary Only)
4208R - SOUTHEASTERN SUPPLY HEADER (SESH) - Receipt - 0
4221 - GULF CROSSING - Total Capacity (Primary Only)
4222 - Texas Gas (Isola) - 0
4315 - BROADMORE RD (Receipts) - 775,000
5112 - NORAM PERRYVILLE Delivery - Total Capacity (Primary Only)
----------------------------------------------------------------------------
DUE PIPE AND DUE SHIPPER AVAILABILITY:
----------------------------------------------------------------------------
Due Pipe - Available
Due Shipper - Not Available
============================================================================
============================================================================
PAL & IT BUSINESS
Representatives are available on a daily basis to discuss PAL transactions with customers who have executed master PAL service agreements. (Reminder: Each PAL transaction including rate, term, quantity and point(s) must be provided for and approved on the Appendix A under the Master PAL Agreement). Customers who are interested in PAL transactions for next-day or longer-term park and/or lend transactions or daily discounted IT paths should contact Diana Roberts at 832-758-0900 (ICE droberts6) or Daniel Junek at 832-320-5825 (ICE djunek4) for more information.
----------------------------------------------------------------------------
AUTO PAL AVAILABILITY:
----------------------------------------------------------------------------
Effective with EVENING Cycle for each Gas Day, Auto Parks/Loans will be limited to +/- 5,000 Dth. Customers are reminded the intent of AutoPAL service is to utilize nominal quantities to resolve pool imbalances that result from upstream or downstream reductions during the cycle. This service should not be used for parking or loaning large quantities.
AutoPAL Parks and Loan Payback - Available
AutoPAL Loans and Unparks - Available
* Denotes a change from previous posting.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
TSP Name Columbia Gulf Transmission, LLC
TSP 007854581
Notice Type Description: Capacity Constraint
Notice Stat Desc: Initiate
Prior Notice:
Critical: Y
Reqrd Rsp Desc: No Response Required
Post
Notice Effective
Notice End
Response
Post Date: 07/16/26
07/16/26
08/16/26
Subject: Subject: CAPACITY POSTING - TIM for July 17, 2026
Author: Author: John Whited
Notice Text
COLUMBIA GULF TRANSMISSION, LLC DAILY CAPACITY POSTING
Columbia Gulf Transmission LLC (CGT) posts projections of anticipated restrictions at least 24 hours prior to the time when nominations are due. These advance forecasts are subject to change based on actual operating conditions. Customers should submit nominations for Timely Cycle to determine whether the service is available under current conditions.
============================================================================
============================================================================
FORCE MAJEURE / OFO
A Force Majeure was declared effective June 19, 2026, at Corinth Compressor Station Unit 505. Please see UPDATED Critical Notice ID 26092010 posted on June 30, 2026, for details.
No Operational Flow Order (OFO) is necessary.
============================================================================
============================================================================
Customers are encouraged to monitor scheduled volumes on the Operationally Available Capacity (OAC) screen on Navigates Informational Postings, as nominations may fluctuate based on market conditions.
============================================================================
============================================================================
----------------------------------------------------------------------------
INTERNAL CONSTRAINTS-- Total Capacity (Net Backhaul):
----------------------------------------------------------------------------
StanSEG - Total Capacity
ClemSEG - Total Capacity
HartSEG - 2,200,000
HampSEG - Total Capacity
CorinSEG - 2,350,000
BannSEG - 2,400,000
InvrnSEG - Total Capacity
ShelSEG - Total Capacity
DelhiSEG - Total Capacity
AlexSEG - Total Capacity
RayneSEG - Total Capacity
WLSEG - Total Capacity
ELSEG - Total Capacity
EL300SEG - Total Capacity
HoumaSEG - Total Capacity
----------------------------------------------------------------------------
INTERNAL CONSTRAINTS-- Total Capacity (Net Forwardhaul):
----------------------------------------------------------------------------
StanSEG - Total Capacity
ClemSEG - Total Capacity
HartSEG - Total Capacity
HampSEG - Total Capacity
CorinSEG - Total Capacity
BannSEG - Total Capacity
InvrnSEG - Total Capacity
ShelSEG - Total Capacity
DelhiSEG - Total Capacity
AlexSEG - Total Capacity
RayneSEG - Total Capacity
WLSEG - Total Capacity
ELSEG - Total Capacity
EL300SEG - Total Capacity
HoumaSEG - Total Capacity
----------------------------------------------------------------------------
POINT CONSTRAINTS -- Total Capacity:
----------------------------------------------------------------------------
Note: Points listed are controlled by less than meter capacity.
401 - CROSSTEX-GIBSON - 0
445 - TRANSCO / TERREBONNE - 0
481 - SEA ROBIN-ERATH - 0
3194 - TETCO ADAIR CO., KY (Receipts) - Total Capacity (Primary Only)
4051 - LAFAYETTE - ACADIA - Total Capacity (Primary Only)
4078 - SONAT-SHADYSIDE - Total Capacity (Primary Only)
4098 - BURLINGTON - TERREBONNE - 0
4118 - FLORIDA GAS - Total Capacity (Primary Only)
4123 - EGAN STOR-ACADIA-REC (Receipts and Deliveries) - 370,000
4137 - CLECO-TECHE - Total Capacity (Primary Only)
4186 - DISCOVERY GAS TRANSMISSION (Deliveries) - Total Capacity (Primary Only)
4204D - GULF SOUTH DELHI Delivery - Total Capacity (Primary Only)
4208R - SOUTHEASTERN SUPPLY HEADER (SESH) - Receipt - 0
4221 - GULF CROSSING - Total Capacity (Primary Only)
4222 - Texas Gas (Isola) - 0
4315 - BROADMORE RD (Receipts) - 775,000
5112 - NORAM PERRYVILLE Delivery - Total Capacity (Primary Only)
----------------------------------------------------------------------------
DUE PIPE AND DUE SHIPPER AVAILABILITY:
----------------------------------------------------------------------------
Due Pipe - Available
Due Shipper - Not Available
============================================================================
============================================================================
PAL & IT BUSINESS
Representatives are available on a daily basis to discuss PAL transactions with customers who have executed master PAL service agreements. (Reminder: Each PAL transaction including rate, term, quantity and point(s) must be provided for and approved on the Appendix A under the Master PAL Agreement). Customers who are interested in PAL transactions for next-day or longer-term park and/or lend transactions or daily discounted IT paths should contact Diana Roberts at 832-758-0900 (ICE droberts6) or Daniel Junek at 832-320-5825 (ICE djunek4) for more information.
----------------------------------------------------------------------------
AUTO PAL AVAILABILITY:
----------------------------------------------------------------------------
Effective with EVENING Cycle for each Gas Day, Auto Parks/Loans will be limited to +/- 5,000 Dth. Customers are reminded the intent of AutoPAL service is to utilize nominal quantities to resolve pool imbalances that result from upstream or downstream reductions during the cycle. This service should not be used for parking or loaning large quantities.
AutoPAL Parks and Loan Payback - Available
AutoPAL Loans and Unparks - Available
* Denotes a change from previous posting.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
TSP Name Columbia Gulf Transmission, LLC
TSP 007854581
Notice Type Description: Maintenance
Notice Stat Desc: Initiate
Prior Notice:
Critical: Y
Reqrd Rsp Desc: No Response Required
Post
Notice Effective
Notice End
Response
Post Date: 07/20/26
07/20/26
08/20/26
Subject: Subject: Construction and Maintenance Schedule Posting
Author: Author: Dillon Schoolcraft
Notice Text
As a courtesy, Columbia Gulf Transmission, LLC (CGT) hereby notifies customers the Construction and Maintenance Schedule posted under "Construction and Maintenance" on the Informational Postings website has been updated. CGT reminds customers to please check the Maintenance Schedule on a regular basis.
The current schedule has been updated to reflect maintenance activity on the following:
* Revised dates – Mainline-100 Casey Creek HDD Pipe Replacement – September 14-30, 2026 (Previously scheduled for September 9-28, 2026)
Additionally, the following file(s) can be located on Informational Postings under Construction and Maintenance
CGT Construction and Maintenance Schedule 7-20-2026.pdf
Columbia Gulf Transmission (CGT)
COMPLETED: Ridgeline Tie-In Maintenance HartSEG and 4166 Effective ID2 Cycle Gas Day July 27, 2026
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
TSP Name Columbia Gulf Transmission, LLC
TSP 007854581
Notice Type Description: Maintenance
Notice Stat Desc: Supersede
Prior Notice: 26093023
Critical: Y
Reqrd Rsp Desc: No Response Required
Post
Notice Effective
Notice End
Response
Post Date: 07/27/26
07/27/26
08/27/26
Subject: Subject: COMPLETED: Ridgeline Tie-In Maintenance HartSEG and 4166 Effective ID2 Cycle Gas Day July 27, 2026
Author: Author: Jonah Skiles
Notice Text
Columbia Gulf Transmission, LLC (CGT) notifies customers that maintenance on Ridgeline Tie-In’s are now complete. As a result, the backhaul capacity through HartSEG, as well as City of Gallatin (4166) meter will be reinstated to Total Capacity effective Intraday 2 Cycle for Gas Day July 27, 2026.
Please contact your Customer Services Representative with any questions.
***Previous Posting***
Columbia Gulf Transmission, LLC (CGT) notifies customers that ridgeline tie-ins are still on schedule to begin on Tuesday, July 14, 2026, reducing the backhaul capacity through HartSEG to a level between 2,200,000 – 2,400,000 Dth.
However, the City of Gallatin (4166) meter will now be taken to 0 Total Capacity effective Timely Cycle July 21, 2026, through July 31, 2026.
Reservation Charge Credits (RCCs) will be determined per the process set forth in the General Terms and Conditions, Section 40 of CGT’s FERC Gas Tariff (Tariff).
Please contact your Customer Services Representative with any questions.
***Previous Posting***
Columbia Gulf Transmission LLC (CGT) notifies customers of upcoming Ridgeline Tie-In’s on Mainlines 200 and 300 beginning on Tuesday, July 14, 2026, through Friday, July 31, 2026. As a result, the backhaul capacity through HartSEG will be reduced to a level between 2,200,000 - 2,400,000 Dth effective Timely Cycle for Gas Day Tuesday, July 14, 2026.
Additionally, the City of Gallatin (4166) meter will be taken to 0 Total Capacity effective Timely Cycle for Gas Day Tuesday, July 14, 2026 through Thursday, July 23, 2026.
CGT anticipates this restriction may result in curtailments to Interruptible, Secondary Firm, and Primary Firm services. Please see the details provided below for more information.
HartSEG
· Estimated Capacity Setting: 2,200,000 – 2,400,000 Dth
· Design Capacity: 2,544,656 Dth
· Posted Percentage: 86-94%
Due to the potential impact to firm service, CGT encourages customers to monitor the scheduled volumes on the Operationally Available Capacity screen on Informational Postings, as nominations can fluctuate based on market conditions.
Reservation Charge Credits (RCCs) will be determined per the process set forth in the General Terms and Conditions, Section 40 of CGT’s FERC Gas Tariff (Tariff). By means of this notice, CGT is establishing the 7-day Average Usage Quantity to be the period of June 13-19, 2026, pursuant to the provisions in the Tariff.
Please contact your Customer Services Representative with any questions.
Below alert threshold -- no detailed analysis performed.
Reroute: Not assessed.
View original notice text
TSP Name Columbia Gulf Transmission, LLC
TSP 007854581
Notice Type Description: Maintenance
Notice Stat Desc: Initiate
Prior Notice:
Critical: Y
Reqrd Rsp Desc: No Response Required
Post
Notice Effective
Notice End
Response
Post Date: 07/27/26
07/27/26
08/27/26
Subject: Subject: Construction and Maintenance Schedule Posting
Author: Author: Dillon Schoolcraft
Notice Text
As a courtesy, Columbia Gulf Transmission, LLC (CGT) hereby notifies customers the Construction and Maintenance Schedule posted under "Construction and Maintenance" on the Informational Postings website has been updated. CGT reminds customers to please check the Maintenance Schedule on a regular basis.
The current schedule has been updated to reflect maintenance activity on the following:
* Revised end date – East Lateral-200 Pigging – July 28-31, 2026 (Previously scheduled to end on July 30, 2026)
* Holcomb Compressor Station Maintenance – August 11-14, 2026
Additionally, the following file(s) can be located on Informational Postings under Construction and Maintenance
CGT Construction and Maintenance Schedule 7-27-2026.pdf
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TSP Name Columbia Gulf Transmission, LLC
TSP 007854581
Notice Type Description: Maintenance
Notice Stat Desc: Initiate
Prior Notice:
Critical: Y
Reqrd Rsp Desc: No Response Required
Post
Notice Effective
Notice End
Response
Post Date: 08/06/26
08/06/26
09/06/26
Subject: Subject: Construction and Maintenance Schedule Posting
Author: Author: Dillon Schoolcraft
Notice Text
As a courtesy, Columbia Gulf Transmission, LLC (CGT) hereby notifies customers the Construction and Maintenance Schedule posted under "Construction and Maintenance" on the Informational Postings website has been updated. CGT reminds customers to please check the Maintenance Schedule on a regular basis.
The current schedule has been updated to reflect maintenance activity on the following:
* Revised end date – Banner Compressor Station Maintenance – July 8 – August 14, 2026 (Previously scheduled to end on August 7, 2026)
* New Albany Compressor Station Maintenance – August 18-19, 2026
* East Lateral-100 Pipeline Maintenance – October 26 – November 2, 2026
Additionally, the following file(s) can be located on Informational Postings under Construction and Maintenance
CGT Construction and Maintenance Schedule 08-06-2026.pdf
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TSP Name Columbia Gulf Transmission, LLC
TSP 007854581
Notice Type Description: Maintenance
Notice Stat Desc: Supersede
Prior Notice: 26136011
Critical: Y
Reqrd Rsp Desc: No Response Required
Post
Notice Effective
Notice End
Response
Post Date: 08/14/26
08/14/26
09/14/26
Subject: Subject: UPDATE: Venice Meter Station Maintenance
Author: Author: Tyler King
Notice Text
Columbia Gulf Transmission, LLC (CGT) notifies customers the maintenance at Venice Meter Station (595) is postponed to a later date yet to be determined. CGT encourages customers to monitor the Construction and Maintenance Schedule for future updates.
Please contact your Customer Services Representative with any questions.
***Previous Posting***
Columbia Gulf Transmission, LLC (CGT) reminds customers of upcoming maintenance on Venice Meter Station beginning Tuesday, August 18, 2026, through Thursday, September 24, 2026. As a result, the receipt capacity at DMS-VENICE PLANT (595) will be reduced to Zero Total Capacity effective Timely Cycle for Gas Day August 18, 2026.
CGT anticipates this restriction may result in curtailments to Interruptible, Secondary Firm, and Primary Firm services. Please see the details provided below for more information.
595
· Estimated Capacity Setting: 0
· Design Capacity: 163,500 Dth
· Posted Percentage: 0%
Reservation Charge Credits (RCCs) will be determined per the process set forth in the General Terms and Conditions, Section 40 of CGT’s FERC Gas Tariff (Tariff). By means of this notice, CGT is establishing the 7-day Average Usage Quantity to be the period of August 4-10, 2026, pursuant to the provisions in the Tariff.
Please contact your Customer Services Representative with any questions.
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View original notice text
TSP Name Columbia Gulf Transmission, LLC
TSP 007854581
Notice Type Description: Maintenance
Notice Stat Desc: Initiate
Prior Notice:
Critical: Y
Reqrd Rsp Desc: No Response Required
Post
Notice Effective
Notice End
Response
Post Date: 08/14/26
08/14/26
08/14/26
Subject: Subject: Construction and Maintenance Schedule Posting
Author: Author: Jonah Skiles
Notice Text
As a courtesy, Columbia Gulf Transmission, LLC (CGT) hereby notifies customers the Construction and Maintenance Schedule posted under "Construction and Maintenance" on the Informational Postings website has been updated. CGT reminds customers to please check the Maintenance Schedule on a regular basis.
The current schedule has been updated to reflect maintenance activity on the following:
* Revised Capacity – ML100 Casey Creek HDD Pipe Replacement – Net Backhaul 1,950,000 – 2,050,000
* Revised start and end date – Venice MS 595 Rebuild – Spring 2027 (Previously scheduled for August 18, 2026 – September 24, 2026)
Additionally, the following file(s) can be located on Informational Postings under Construction and Maintenance
CGT Construction and Maintenance Schedule 8-14-2026.pdf
Columbia Gulf Transmission (CGT)
LIFTED: Force Majeure: Corinth Compressor Station (CorinSEG) Eff. TIM Cycle for August 20, 2026
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TSP Name Columbia Gulf Transmission, LLC
TSP 007854581
Notice Type Description: Force Majeure
Notice Stat Desc: Supersede
Prior Notice: 26092010
Critical: Y
Reqrd Rsp Desc: No Response Required
Post
Notice Effective
Notice End
Response
Post Date: 08/19/26
08/19/26
09/19/26
Subject: Subject: LIFTED: Force Majeure: Corinth Compressor Station (CorinSEG) Eff. TIM Cycle for August 20, 2026
Author: Author: Tom Koontz
Notice Text
Columbia Gulf Transmission, LLC (CGT) notifies customers the Force Majeure at Corinth Compressor Station Unit 505 is hereby lifted. As a result, the backhaul capacity through CorinSEG has been reinstated to Total Capacity effective Timely Cycle for Gas Day August 20, 2026.
Please contact your Customer Services Representative with any questions.
***Previous Posting***
Columbia Gulf Transmission, LLC (CGT) notifies customers of the following update regarding the force majeure at Corinth Compressor Station in Mississippi.
CGT has determined the scope of work necessary to return Unit 505 to full operation. The restoration efforts are underway, and CGT remains diligently working in a reasonably expeditious manner.
At this time, based on the logistics involved with the performance of work, including but not limited to the availability of required parts and equipment, CGT anticipates the force majeure, and subsequent capacity reduction through CorinSEG, will remain in effect through mid-August 2026.
Based on current nomination levels, CGT anticipates no impact to customer nominations through CorinSEG. However, CGT encourages customers to monitor the scheduled volumes on the Operationally Available Capacity screen on Informational Postings, as nominations can fluctuate based on market conditions.
As a reminder, the anticipated timeline is subject to change based on outage logistics. CGT will provide updates as additional information becomes available.
Reservation Charge Credits (RCCs) will be determined per the process set forth in the General Terms and Conditions, Section 40 of CGT’s FERC Gas Tariff (Tariff).
Please contact your Customer Services Representative with any questions.
***Previous Posting***
Columbia Gulf Transmission, LLC (CGT) notifies customers of the following update regarding the force majeure at Corinth Compressor Station in Mississippi.
CGT continues to diligently work towards resolving the situation; however, the work necessitated by the force majeure is ongoing. Based on the logistics involved with the remaining scope of work, CGT currently anticipates the force majeure, and subsequent capacity reduction through CorinSEG, will remain in effect through Gas Day Monday, June 29, 2026.
CGT reminds customers the anticipated dates and capacity impact are subject to change. CGT will provide updates as additional information becomes available.
Reservation Charge Credits (RCCs) will be determined per the process set forth in the General Terms and Conditions, Section 40 of CGT’s FERC Gas Tariff (Tariff).
Please contact your Customer Services Representative with any questions.
***Previous Posting***
Columbia Gulf Transmission, LLC (CGT) notifies customers of an unexpected and uncontrollable mechanical failure at Corinth Compressor Station Unit 505 in Mississippi that affects CGT’s ability to transport gas and could not be prevented or overcome by the due diligence of CGT. Therefore, pursuant to Section 15 of the General Terms and Conditions of CGT’s FERC Gas Tariff, CGT is declaring a Force Majeure effective Gas Day June 19, 2026, and continuing until further notice.
In an effort to avoid an immediate commercial impact, there will be no capacity reduction for Gas Day June 19, 2026. However, effective Timely Cycle for Gas Day Saturday, June 20, 2026, and continuing until further notice, the backhaul capacity through CorinSEG will be reduced to 2,275,000 Dth.
CGT anticipates this restriction may result in curtailments to Interruptible, Secondary Firm, and Primary Firm services. Please see the details provided below for more information:
CorinSEG
· Estimated Capacity Setting: 2,275,000 Dth
· Design Capacity: 2,540,656 Dth
· Posted Percentage: 90%
CGT encourages customers to monitor the scheduled volumes on the Operationally Available Capacity screen on Informational Postings, as nominations can fluctuate based on market conditions.
Reservation Charge Credits (RCCs) will be determined per the process set forth in the General Terms and Conditions, Section 40 of CGT’s FERC Gas Tariff (Tariff). By means of this notice, CGT is establishing the 7-day Average Usage Quantity to be the period of May 23-29, 2026, pursuant to the provisions in the Tariff.
Please contact your Customer Services Representative with any questions.
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Reroute: Not assessed.
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Notice Type Description: Computer System Status
Notice Stat Desc: Supersede
Prior Notice: 25975119
Critical: Y
Reqrd Rsp Desc: No Response Required
Post
Notice Effective
Notice End
Response
Post Date: 01/23/26
01/23/26
02/23/26 7:17:22 AM
12:00:00 AM
12:00:00 AM
Subject: RESOLVED: TCeConnects Authentification Issue
Author: Bill Hammers
Notice Text:
The authentication issue affecting access to the TC eConnects application has now been resolved.
Earlier, TC Energy was aware of a service disruption with our authentication vendor, Okta, which prevented some users from logging in. This issue has since been addressed, and normal access to TC eConnects has been restored.
If you continue to experience login issues, please contact the EBB Security group at 832-320-5291 or 832-320-5150 for assistance.
Thank you for your patience.
*******Previous Posting*****
TC Energy is currently aware of an authentication issue affecting access to the TC eConnects application. Our authentication vendor, Okta, is experiencing a service disruption that is preventing some users from logging in.
At this time, we do not have an estimated resolution. If you experience login issues, please contact the EBB security group at 832-320-5291 or 832-320-5150 for assistance.
We will provide an update as soon as the issue is resolved.
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Reroute: Not assessed.
View original notice text
Notice Type Description: Computer System Status
Notice Stat Desc: Initiate
Prior Notice:
Critical: Y
Reqrd Rsp Desc: No Response Required
Post
Notice Effective
Notice End
Response
Post Date: 01/22/26
01/22/26
02/22/26 4:04:02 PM
12:00:00 AM
12:00:00 AM
Subject: TCeConnects Authentification Issue
Author: Bill Hammers
Notice Text:
TC Energy is currently aware of an authentication issue affecting access to the TC eConnects application. Our authentication vendor, Okta, is experiencing a service disruption that is preventing some users from logging in.
At this time, we do not have an estimated resolution. If you experience login issues, please contact the EBB security group at 832-320-5291 or 832-320-5150 for assistance.
We will provide an update as soon as the issue is resolved.
Columbia Gulf Transmission (CGT)
Columbia Pipelines January 2026 Monthly Customer Update – Today, Jan. 22, 1:30 PM CST
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Notice Type Description: Other
Notice Stat Desc: Initiate
Prior Notice:
Critical: Y
Reqrd Rsp Desc: No Response Required
Post
Notice Effective
Notice End
Response
Post Date: 01/22/26
01/22/26
02/22/26 1:03:15 PM
12:00:00 AM
12:00:00 AM
Subject: Columbia Pipelines January 2026 Monthly Customer Update – Today, Jan. 22, 1:30 PM CST
Author: Tom Koontz
Notice Text:
PLEASE JOIN US today for the Columbia Pipelines January 2026 Monthly Customer Update at 2:30 p.m. EST, 1:30 p.m. CST.
The Teams Meeting link and Presentation is included below. Customers may follow along using Microsoft Teams or may call in using a dial-in number and the posted presentation.
January 2026 TC Energy - Columbia Pipelines Monthly Customer Update and CGT Maintenance Timeline Call | Meeting-Join | Microsoft Teams
You may also dial-in using the following:
Phone: (213) 607-0501
Passcode: 851 284 239#
Please contact your Customer Services Representative with any questions.
Additionally, the following file(s) can be located on Informational Postings under Presentations
Columbia Pipelines Monthly Customer Update 01_22_2026.pdf
Columbia Gulf Transmission (CGT)
Columbia Pipelines August 2026 Monthly Customer Update – Today, August 20, 1:30 PM CST
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TSP Name Columbia Gulf Transmission, LLC
TSP 007854581
Notice Type Description: Other
Notice Stat Desc: Initiate
Prior Notice:
Critical: Y
Reqrd Rsp Desc: No Response Required
Post
Notice Effective
Notice End
Response
Post Date: 08/20/26
08/20/26
09/20/26
Subject: Subject: Columbia Pipelines August 2026 Monthly Customer Update – Today, August 20, 1:30 PM CST
Author: Author: Tom Koontz
Notice Text
PLEASE JOIN US today for the Columbia Pipelines August 2026 Monthly Customer Update at 2:30 p.m. EST, 1:30 p.m. CST.
The Teams Meeting link and Presentation is included below. Customers may follow along using Microsoft Teams or may call in using a dial-in number and the posted presentation.
August 2026 TC Energy - Columbia Pipelines Monthly Customer Update and CGT Maintenance Timeline Call | Meeting-Join | Microsoft Teams
You may also dial-in using the following:
Phone: (213) 607-0501
Passcode: 311 638 87#
Please contact your Customer Services Representative with any questions.
Additionally, the following file(s) can be located on Informational Postings under Presentations
Columbia Pipelines Monthly Customer Update 08_20_2026.pdf
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Reroute: Not assessed.
View original notice text
TSP Name Columbia Gulf Transmission, LLC
TSP 007854581
Notice Type Description: Maintenance
Notice Stat Desc: Initiate
Prior Notice:
Critical: Y
Reqrd Rsp Desc: No Response Required
Post
Notice Effective
Notice End
Response
Post Date: 08/27/26
08/27/26
09/27/26
Subject: Subject: Construction and Maintenance Schedule Posting
Author: Author: Dillon Schoolcraft
Notice Text
As a courtesy, Columbia Gulf Transmission, LLC (CGT) hereby notifies customers the Construction and Maintenance Schedule posted under "Construction and Maintenance" on the Informational Postings website has been updated. CGT reminds customers to please check the Maintenance Schedule on a regular basis.
The current schedule has been updated to reflect maintenance activity on the following:
* Alexandria Compressor Station Maintenance – September 9, 2026
* Revised dates – Golden Meadow Compressor Station Maintenance – September 15-16, 2026 (Previously scheduled for September 29-30, 2026)
* Revised dates – Centerville Compressor Station Maintenance – September 17-18, 2026 (Previously scheduled for October 6-7, 2026)
* Revised dates – Mainline 100 Casey Creek Pipeline Maintenance – September 23 – October 2, 2026 (Previously scheduled for September 14-30, 2026)
Additionally, the following file(s) can be located on Informational Postings under Construction and Maintenance
CGT Construction and Maintenance Schedule 8-27-2026.pdf
Columbia Gulf Transmission (CGT)
COMPLETED: Means Valve Replacement (StanSEG), Effective ID2 for September 4, 2026
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TSP Name Columbia Gulf Transmission, LLC
TSP 007854581
Notice Type Description: Maintenance
Notice Stat Desc: Supersede
Prior Notice: 26151012
Critical: Y
Reqrd Rsp Desc: No Response Required
Post
Notice Effective
Notice End
Response
Post Date: 09/04/26
09/04/26
10/04/26
Subject: Subject: COMPLETED: Means Valve Replacement (StanSEG), Effective ID2 for September 4, 2026
Author: Author: Tyler King
Notice Text
Columbia Gulf Transmission, LLC (CGT) notifies customers the Means valve replacement maintenance is complete. As a result, the backhaul capacity through StanSEG has been reinstated to Total Capacity effective Intraday 2 Cycle for Gas Day September 4, 2026, and Timely Cycle for Gas Day September 5, 2026.
Please contact your Customer Services Representative with any questions.
***Previous Posting***
Columbia Gulf Transmission LLC (CGT) notifies customers of upcoming valve replacement in Means, Kentucky beginning on Thursday, August 27, 2026, through Thursday, September 3, 2026. As a result, the backhaul capacity through StanSEG will be reduced to a level between 1,950,000 and 2,200,000 Dth effective Timely Cycle for Gas Day Thursday, August 27, 2026.
CGT anticipates this restriction may result in curtailments to Interruptible, Secondary Firm, and Primary Firm services. Please see the details provided below for more information.
StanSEG
· Estimated Capacity Setting: 1,950,000 – 2,200,000 Dth
· Design Capacity: 2,344,656 Dth
· Posted Percentage: 83-94%
Due to the potential impact to firm service, CGT encourages customers to monitor the scheduled volumes on the Operationally Available Capacity screen on Informational Postings, as nominations can fluctuate based on market conditions.
Reservation Charge Credits (RCCs) will be determined per the process set forth in the General Terms and Conditions, Section 40 of CGT’s FERC Gas Tariff (Tariff). By means of this notice, CGT is establishing the 7-day Average Usage Quantity to be the period of June 13-19, 2026, pursuant to the provisions in the Tariff.
Please contact your Customer Services Representative with any questions.
