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 September 10, 2021


Annual Fall maintenance for the Mist storage facility is scheduled to take place from October 18 through October 29, 2021. NW Natural does not guarantee it will be able to confirm nomination requests for storage injections and withdrawals during this maintenance period, and service could be interrupted as discussed in Section 7.9 of the Mist Operating Statement.

In order to minimize service disruptions, NW Natural requests customers contact us regarding any plans to utilize Mist storage during this time. Should any service disruption be necessary, firm service requests shall take priority over interruptible service requests.

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 at the email

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.