| Notice Type | Notice Sub-Type | Post Date/Time | Notice Effective Date/Time | Notice End Date/Time | Notice ID | Subject |
| Critical notice | MAINTENANCE | 5/21/2026 10:02:51 PM | 5/21/2026 10:02:51 PM | 12/31/9000 | 13758 |
EAST CHEYENNE GAS STORAGE MAINTENANCE SCHEDULE FOR JUNE 2026 |
| Critical notice | MAINTENANCE | 5/21/2026 11:50:35 AM | 5/21/2026 11:50:35 AM | 12/31/9000 | 13746 |
PRELIMINARY ECGS 2026 MAINTENANCE SCHEDULE UPDATED MAY 2026 |
| Critical notice | MAINTENANCE | 4/23/2026 1:03:58 PM | 4/23/2026 1:03:58 PM | 12/31/9000 | 13677 |
EAST CHEYENNE GAS STORAGE MAINTENANCE SCHEDULE FOR MAY 2026 |
| Critical notice | MAINTENANCE | 3/24/2026 6:25:16 PM | 3/24/2026 6:25:16 PM | 12/31/9000 | 13581 |
EAST CHEYENNE GAS STORAGE MAINTENANCE SCHEDULE FOR APRIL 2026 |
| Critical notice | MAINTENANCE | 3/24/2026 12:00:59 PM | 3/24/2026 12:00:59 PM | 12/31/9000 | 13564 |
PRELIMINARY ECGS 2026 MAINTENANCE SCHEDULE UPDATED MARCH 2026 |
| Critical notice | COMPUTER SYSTEM STATUS | 2/26/2026 9:35:19 AM | 2/26/2026 9:35:19 AM | 12/31/9000 | 13488 |
Tallgrass Gas Management System Now Operational |