DTE Gas Company Notices
Critical Notices
Unplanned System Maintenance - (August 01, 2023)
Read the entire Notice of Unplanned System Maintenance.
Unplanned System Maintenance - (July 12, 2023)
Effective Gas Day 9 - ID1 Cycle, and until further notice, unplanned system maintenance is required that will impact the Willow segment. Read the entire Notice of Unplanned System Maintenance.
Unplanned System Maintenance - Completed (April 13, 2023)
Effective Gas Day 13 – ID2 Cycle and Gas Day 14 – Timely Cycle, the unplanned system maintenance impacting the Willow segment has been completed. Read the entire Notice of Unplanned System Maintenance.
Unplanned System Maintenance (April 11, 2023)
Effective Gas Day 11 - ID1 Cycle, and until further notice, unplanned system maintenance is required that will impact the Willow segment. Read the entire Notice of Unplanned System Maintenance.
Unplanned System Maintenance - Completed (July 15, 2022)
UPDATE: Effective immediately, maintenance work is complete, restrictions through the Willow and Belle River Segments are lifted. Read the entire Notice of Unplanned Maintenance.
Unplanned System Maintenance (July 11, 2022)
Effective Gas Day 8 ID1 Cycle - unplanned system maintenance is required that will impact the Willow and Belle River segments. Read the entire Notice of Unplanned Maintenance.
Unplanned System Maintenance - Repair Work Completed (November 12, 2021)
Repair work will be completed today. All restrictions will be lifted beginning Saturday Gas Day, November 13 Timely Cycle. Read the entire notice.
Unplanned System Maintenance - Emergent Repair (November 8, 2021)
Repair work will begin, and system capacity will be reduced on Sunday Gas Day, November 7 Timely Cycle with increasing restrictions beginning Gas Day Monday, November 8 Timely Cycle and will last approximately 6 days. Read the entire notice.
Unplanned System Maintenance (October 29, 2021)
DTE Gas has determined an emergent unplanned repair is required on the system. This constitutes a Force Majeure event that will reduce system capacity on the Willow and Belle River segments beginning Sunday, Gas Day October 31, Timely Cycle until further notice. Read the entire notice
Non-Critical Notices
July 2024 - December 2024
Notice of Planned Maintenance (November 19, 2024)
View the notification here.
October 2024 System-Wide BTU Factor (November 12, 2024)
The October 2024 final system wide average BTU is 1.05343.
System Maintenance Schedule Updated (November 06, 2024)
View the notification here.
Notice of Unplanned System Maintenance (November 04, 2024)
View the notification here.
October 2024 MCGC City Gate Price (November 04, 2024)
The average MichCon City gate price for October 2024 is $1.889/MMBtu. This price will be used to determine final dry point cash-out positions.
September 2024 System-Wide BTU Factor (October 11, 2024)
The September 2024 final system wide average BTU is 1.05042.
September 2024 MCGC City Gate Price (October 11, 2024)
The average MichCon City gate price for September 2024 is $1.900/MMBtu. This price will be used to determine final dry point cash-out positions.
2024 System Maintenance Schedule Updated (October 8, 2024)
View the notification here.
Updated: Notice of System Constraints for Weekend Operations (October 8, 2024)
View the notification here.
Notice of Potential Constraints (September 24, 2024)
View the notification here.
August 2024 MCGC City Gate Price (September 17, 2024)
The average MichCon City gate price for August 2024 is $1.636/MMBtu. This price will be used to determine final dry point cash-out positions.
August 2024 System-Wide BTU Factor (September 12, 2024)
The August 2024 final system wide average BTU is 1.05451.
Notice of System Maintenance and Warmer Weather Anticipated (September 12, 2024)
View the notification here.
July 2024 System-Wide BTU Factor (August 8, 2024)
The July 2024 final system wide average BTU is 1.05842.
July 2024 MCGC City Gate Price (August 5, 2024)
The average MichCon City gate price for July 2024 is $1.640/MMBtu. This price will be used to determine final dry point cash-out positions.
The DTE Gas Company Weighted Average Cost of Gas (WACOG) (July 9, 2024)
| Month | WACOG |
|---|---|
| June 2024 | $3.2676 per MMBtu |
| May 2024 | $3.3524 per MMBtu |
| April 2024 | $3.3504 per MMBtu |
| March 2024 | $3.5981 per MMBtu |
| February 2024 | $3.5319 per MMBtu |
| January 2024 | $3.4796 per MMBtu |
June 2024 System-Wide BTU Factor (July 9, 2024)
The June 2024 final system wide average BTU is 1.05678.
June 2024 MCGC City Gate Price (July 8, 2024)
The average MichCon City gate price for June 2024 is $1.837/MMBtu. This price will be used to determine final dry point cash-out positions.
January 2024 - June 2024
Notice of of Completion of Planned Maintenance (June 20, 2024)
View the notification here.
Sep/Oct/Nov MDQ Review (June 14, 2024)
View the notification here.
May 2024 System-Wide BTU Factor (June 11, 2024)
The May final system wide average BTU is 1.05446.
May 2024 MCGC City Gate Price (June 4, 2024)
The average MichCon City gate price for May 2024 is $1.669/MMBtu. This price will be used to determine final dry point cash-out positions.
Notice of Potential Constraints (May 31, 2024)
View the notification here.
Annual Review of EUT Customers' Annual Contract Quantity (ACQ) (May 14, 2024)
View the notification here.
April 2024 System-Wide BTU Factor (May 12, 2024)
The April final system wide average BTU is 1.05757.
April 2024 MCGC City Gate Price (May 7, 2024)
The average MichCon City gate price for April 2024 is $1.467/MMBtu. This price will be used to determine final dry point cash-out positions.
2024 System Maintenance Schedule (April 30, 2024)
View the schedule here.
Notice of Unplanned System Maintenance COMPLETE (April 22, 2024)
View the notification here.
Notice of Unplanned System Maintenance (April 19, 2024)
View the notification here.
March 2024 System-Wide BTU Factor (April 12, 2024)
The March final system wide average BTU is 1.05903.
Notice of Planned System Maintenance (April 12, 2024)
View the notification here.
March 2024 MCGC City Gate Price (April 2, 2024)
The average MichCon City gate price for March 2024 is $1.446/MMBtu. This price will be used to determine final dry point cash-out positions.
Notice of Planned System Maintenance (March 15, 2024)
View the notification here.
February 2024 System-Wide BTU Factor (March 15, 2024)
The February 2024 final system wide average BTU is 1.05904.
February 2024 MCGC City Gate Price (March 15, 2024)
The average MichCon City gate price for February 2024 is $1.660/MMBtu. This price will be used to determine final dry point cash-out positions.
Warm Weather Advisory (March 11, 2024)
View the notification here.
Warm Weather Advisory Lifted (March 5, 2024)
View the notification here.
Warm Weather Advisory (March 4, 2024)
View the notification here.
Notice of Planned System Maintenance (February 28, 2024)
View the notification here.
March 2024 Waiver of EUT Monthly 3% Storage Withdrawal Limits (February 20, 2024)
View the notification here.
Notice of Planned System Maintenance (February 20, 2024)
View the notification here.
The DTE Gas Company Weighted Average Cost of Gas (WACOG) (February 14, 2024)
| Month | WACOG |
|---|---|
| January 2024 | $3.4796 per MMBtu |
| December 2023 | $3.3803 per MMBtu |
| November 2023 | $3.2937 per MMBtu |
| October 2023 | $3.4115 per MMBtu |
| September 2023 | $3.4724 per MMBtu |
| August 2023 | $3.4794 per MMBtu |
| July 2023 | $3.4697 per MMBtu |
| June 2023 | $3.4608 per MMBtu |
| May 2023 | $3.4291 per MMBtu |
| April 2023 | $3.4022 per MMBtu |
January 2024 System-Wide BTU Factor (February 14, 2024)
The January 2024 final system wide average BTU is 1.05250.
January 2024 MCGC City Gate Price (February 2, 2024)
The average MichCon City gate price for January 2024 is $2.581/MMBtu. This price will be used to determine final dry point cash-out positions.
DTE Gas IT Storage Withdrawal Restriction Lifted (January 22, 2024)
View the notification here.
DTE Gas Storage Open Season (January 17, 2024)
View the notification here.
DTE Gas IT Storage Withdrawal Restriction (January 16, 2024)
View the notification here.
December 2023 System-Wide BTU Factor (January 12, 2024)
The December 2023 final system wide average BTU is 1.05851.
Cold Weather Advisory (January 9, 2024)
View the notification here.
December 2023 MCGC City Gate Price (January 4, 2024)
The average MichCon City gate price for December 2023 is $2.155/MMBtu. This price will be used to determine final dry point cash-out positions.
Planned Outages
NOTICE OF PLANNED SYSTEM MAINTENANCE (September 3, 2021)
Read the Notice of Planned System Maintenance.
UPDATED: NOTICE OF PLANNED SYSTEM MAINTENANCE (July 22, 2021)
Read the Notice of Planned System Maintenance.
UPDATED: Extended Milford Junction Planned System Outage (July 22, 2021)
Read the Extended Milford Junction Planned System Outage Notification.
UPDATED: Extended Willow Run Planned System Outage (July 22, 2021)
Read the Extended Willow Run Planned System Outage Notification.
DTE Planned Maintenance in July 2021 (May 27, 2021)
DTE Gas will be performing in-line inspections and other planned maintenance in July 2021. The July inspections and subsequent remediation windows will constrain volumes moving through the pipeline segments and certain points as described in the Notice of Planned System Maintenance.
Gas Cost Recovery Factor Update
In August 2016, the Gas Cost Recovery (GCR) rate changed from $0.344 per hundred cubic feet (Ccf) to $0.351 per Ccf. This change was implemented on a bills rendered basis beginning the first billing cycle in August 2016.
We evaluate the GCR factor every month to reflect the cost we expect to pay our suppliers. Once actual gas supply costs are booked, any cost adjustments over or under are made to the GCR factor — an ongoing "true-up" process resulting in no profit to us. By law, the GCR factor is passed on to customers without any profit or markup. Customers pay what we pay for natural gas. The Michigan Public Service Commission reviews and approves the price we charge for gas.