Docket No:  ADV 1770 Docket Name:  NW NATURAL ADVICE NO. 25-17 TSA DIRECTIVE 2 COST OF SERVICE COSTS Submit Public Comment Subject Company:  NORTHWEST NATURAL              See also:  UG 524    NW Natural Advice No. 25-17, Amortizes Deferred Costs Related to TSA Security Directive 2 Cost of Service Through Schedule 189. Copies served to Gas List. Filing Date:   Advice No: 25-17       Effective:  10/31/2025 Expiration:   Status:   Case Manager:  Mitch Moore Phone:  971-375-5094 Email:   mitch.moore@puc.oregon.gov Staff Contact:  PAUL ROSSOW Phone:  503-931-2355 Email:   paul.rossow@puc.oregon.gov Email Service List (semi-colon delimited)      Email Service List (comma delimited)   If you experience problems with the above 'Email Service List' links, please try one of these: Service List Popup (semi-colon delimited)     Service List Popup (comma delimited)

ACTIONS SERVICE LIST SCHEDULE Public Comments Sort By Date        Sort By Type Date: 7/31/2025 Action:  INITIAL UTILITY FILING      Description NW Natural Advice No. 25-17, Amortizes Deferred Costs Related to TSA Security Directive 2 Cost of Service Through Schedule 189. Copies served to Gas List.