ML 1 - DATE CHANGE FOR SMART PIGGING

MountainWest Pipeline, LLC (MWP) would like to provide the following update regarding previously announced maintenance activities:

The smart pigging work on ML 1 (Nightingale to Eakin) that was scheduled for August 6, 2026 has been postponed due to programming issues with the inspection tool.
As a result, the previously planned reduction on the Nightingale ML22 Segment will not be required at this time.
Nominations that were reduced during the Timely Cycle due to the planned maintenance may be resubmitted and will be accepted beginning with the Evening Cycle today.

MWP will provide an updated notice once a new date for the smart pigging activity has been established.

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