MountainWest Pipeline

Customer Access

Transmission Services

MountainWest Pipeline
- Informational Postings
  - Capacity
  - Gas Quality
    - Gas Quality Data
      - Daily Gas Quality
      - CHDP Zone Map
    - Methodology
    - Tariff Reference
  - Index of Customers
  - Locations
  - Notices
  - Posted Imbalances
  - Standards of Conduct
  - Tariff
  - Transactional Reporting
  - Other
  - Downloads
  - Search
  - Customer Activites
    - myQuorum Login
  - Site Map
- System Operations
  - System Maintenance Calendar
- MWP Home
MountainWest Overthrust Pipeline
- Informational Postings
  - Capacity
  - Gas Quality
    - Gas Quality Data
      - Representative Mainline Points
      - Receipt Points (CHDP)
    - Methodology
    - Tariff Reference
  - Index of Customers
  - Locations
  - Notices
  - Posted Imbalances
  - Standards of Conduct
  - Tariff
  - Transactional Reporting
  - Other
  - Downloads
  - Search
  - Customer Activites
    - myQuorum Login
  - Site Map
- System Operations
  - System Maintenance Calendar
- MWOP Home
White River Hub
- Informational Postings
  - Capacity
  - Gas Quality
    - Gas Quality Data
      - Daily Gas Quality
    - Methodology
    - Tariff Reference
  - Index of Customers
  - Locations
  - Notices
  - Posted Imbalances
  - Standards of Conduct
  - Tariff
  - Transactional Reporting
  - Other
  - Downloads
  - Search
  - Customer Activites
    - myQuorum Login
  - Site Map
- System Operations
  - System Maintenance Calendar
- WRH Home

System Wide Notices - MountainWest Pipeline

TSP Name:

MountainWest Pipeline, LLC

TSP:

092027077

Critical:

Notice Type Desc	Post Date/Time	Notice Eff Date/Time	Notice ID	Subject	Rsp Date/Time	Notice Stat	Prior Notice	Reqrd Rsp
FORCE MAJ/CONSTRAINT	06/03/2026 08:48 AM	06/03/2026 06:30 PM	38611	FORCE MAJEURE -UPDATE CLAY BASIN INJECTION CAPACITY		2	38571	5

All listed times are CCT

FORCE MAJEURE -UPDATE CLAY BASIN INJECTION CAPACITY

MountainWest Pipeline, LLC (MWP) would like to report that at Clay Basin Storage Facility unit #5 is back online and unit #1 will remain out of service for the foreseeable future.
Based off current system and operating pressures, effective gas day June 3, 2026, cycle ID1, Clay Basin injections will be increased to 200,000 Dth/d plus 25,000 Dth/d Park and Loan for a total injection capacity of 225,000 Dth/d.

If you have any questions, please contact your MWP Marketing or Contract Services Representative, or Scheduling on the Customer Service Hotline at 801-584-6034.