Resources for storage services.

Find all the resources you need for interstate and intrastate storage services right here. Check back often.

View maintenance schedule


Notice on April 19, 2024


Beginning of the Gas Day, starting April 20, 2024, the annual spring maintenance at the Mist storage facility will be completed.  Storage withdrawal and injection will be available for both firm and interruptible service.

Thank you for your cooperation and your business.  Please continue to monitor this site for updates.

If you have any questions, please contact NW Natural's Gas Supply Department as soon as possible by email at


Mist operating statement

Learn more about how NW Natural shall provide firm and interruptible storage and related transportation services pursuant to Section 284.224 of the Federal Energy Regulatory Commission's (hereafter “FERC” or “Commission”) rules and regulations, 18 C.F.R. § 284.224.

View Mist Operating Statement.

Storage operating procedures

Read about Operating Procedures regarding the storage of customer-owned gas at NW Natural’s Mist storage facility and associated transportation to and from Mist on NW Natural’s distribution system facilities. 

This is not a tariffed document, but may be referenced and incorporated by NW Natural’s currently effective Operating Statement governing the operating details applicable to Interstate and Intrastate Storage Services.

Read the procedures.

Mist inventory

This chart is updated on a weekly basis, but NW Natural makes no guarantee or warranty to any party as to the accuracy of its data or that the chart can be relied on to predict future Mist activity.

View Mist inventory data, with injection and withdrawal activity.

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Check system status.

Check daily confirmed nomination volumes or get the latest updates on your marketer account status.

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How we distribute natural gas.

See how we keep safety as the top priority across our system.

Gas transportation details.

Check status updates and change your marketer status with NW Natural.

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Register your account online.

View and pay bills, see gas use, and compare use over time.