Docket No:  UG 524 Docket Name:  NW NATURAL ADVICE NO. 25-21 PURCHASE GAS ADJUSTMENT (PGA) Submit Public Comment Subject Company:  NORTHWEST NATURAL     In the Matter of NORTHWEST NATURAL GAS COMPANY, dba NW NATURAL, Annual Purchased Gas Cost and Technical Rate Adjustments. Filed by Kyle Walker. Copies served to Gas List. HC, CONF, and NONC Native Excel Files saved to agency folder. Filing Date:   Advice No: 25-21A    Public Mtg: 10/28/2025    Effective:  10/31/2025 Expiration:   Status:  ALLOWED Case Manager:  ANNA KIM Phone:  971-239-2887 Email:   anna.kim@puc.oregon.gov Staff Contact:  ZHUOYI ZHAO Phone:   Email:   zhuoyi.zhao@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) General information about Tariff Filings.

ACTIONS SERVICE LIST SCHEDULE Public Comments Sort By Date        Sort By Type Date: 10/29/2025 Action:  OTHER CORRESPONDENCE (ACKN, SVC, LTR)      Description Proof of service of letter 10/29/2025.  Date: 10/28/2025 Action:  ALLOWED (APPROVED) UTILITY FILING      Description Letter sent.   Date: 10/28/2025 Action:  ORDER      Order No:   25-426    Description Order No. 25-426, signed by Chief Administrative Law Judge Alison Lackey; DISPOSITION: STAFF'S RECOMMENDATION ADOPTED. Copies served on 10/28/25.  Date: 10/23/2025 Action:  STAFF REPORT      Description Staff Report for the October 28, 2025 Special Public Meeting (Item No. RA2), by Anna Kim and Zhuoyi Zhao.   Date: 9/15/2025 Action:  REPLACEMENT SHEETS, ADDITIONAL MATERIAL      Description NW Natural's Advice No. 25-21A. This filing replaces, in the entirety, the tariff sheets and Exhibits A-D. HIghly Confidential, Confidential and Non-confidential native Excel file saved to Agency Folder.   Date: 9/2/2025 Action:  NOTICE      Description NW Natural's Notice of Publication and Tear Sheets, filed by Natascha Siores.   Date: 7/31/2025 Action:  INITIAL UTILITY FILING      Description In the Matter of NORTHWEST NATURAL GAS COMPANY, dba NW NATURAL, Annual Purchased Gas Cost and Technical Rate Adjustments. Filed by Kyle Walker. Copies served to Gas List. HC, CONF, and NONC Native Excel Files saved to agency folder.