Docket No:  UM 2312 Docket Name:  NW NATURAL UPDATED DEPRECIATION STUDY Submit Public Comment * This docket is a contested case. See the Internal Operating Guidelines and OAR 860-001 Subject Company:  NORTHWEST NATURAL     In the Matter of NORTHWEST NATURAL GAS COMPANY, dba NW NATURAL, Updated Depreciation Study. Filed by Kyle Walker. Copies served to Gas Industry List. Filing Date:  1/2/2024       Case Manager:  MING PENG Phone:  503-508-3040 Email:   ming.peng@puc.oregon.gov Law Judge:  SARAH SPRUCE Phone:  (971) 388-6275   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 (Parties) SCHEDULE Public Comments C=Confidential HC=Highly Confidential Sort by Last Name      Sort by Party Name AWEC           BRADLEY MULLINS  (C)       MW ANALYTICS, ENERGY & UTILITIES LUMMINTIE 13 OULU FI-90460 brmullins@mwanalytics.com         CHAD M STOKES  (C)       CABLE HUSTON LLP 1455 SW BROADWAY STE 1500 PORTLAND OR 97201 cstokes@cablehuston.com NW NATURAL           ERIC NELSEN  (C)       NORTHWEST NATURAL 250 SW TAYLOR ST PORTLAND OR 97204 eric.nelsen@nwnatural.com         Share NW NATURAL       NORTHWEST NATURAL 250 SW TAYLOR ST PORTLAND OR 97204 efiling@nwnatural.com         KYLE WALKER  (C)       NORTHWEST NATURAL 250 SE TAYLOR STREET PORTLAND OR 97204-3038 kyle.walker@nwnatural.com OREGON CITIZENS UTILITY BOARD           JENNIFER HILL-HART       OREGON CITIZENS' UTILITY BOARD 610 SW BROADWAY STE 400 PORTLAND OR 97205 jennifer@oregoncub.org         ROBERT JENKS       OREGON CITIZENS' UTILITY BOARD 610 SW BROADWAY, STE 400 PORTLAND OR 97205 bob@oregoncub.org         Share OREGON CITIZENS' UTILITY BOARD       OREGON CITIZENS' UTILITY BOARD 610 SW BROADWAY, STE 400 PORTLAND OR 97205 dockets@oregoncub.org STAFF           STEPHANIE S ANDRUS       Oregon Department of Justice BUSINESS ACTIVITIES SECTION 1162 COURT ST NE SALEM OR 97301-4096 stephanie.andrus@doj.state.or.us         MING PENG       PUBLIC UTILITY COMMISSION OF OREGON PO BOX 1088 SALEM OR 97308-1088 ming.peng@puc.oregon.gov