Docket No:  UM 2396 Docket Name:  AVISTA CORPORATION APPLICATION FOR AN ORDER AUTHORIZING DEFERRED ACCOUNTING Submit Public Comment Subject Company:  AVISTA UTILITIES     In the Matter of Avista Corporation, Application for an Order Authorizing Deferred Accounting and Ratemaking Treatment of Costs Associated with Investment in an Enterprise Resource Platform. Filed by Shawn Bonfield. Copies served to Gas Industry... Filing Date:  7/1/2025       Case Manager:  ROSE PILEGGI Phone:   Email:   rose.pileggi@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 C=Confidential HC=Highly Confidential Sort by Last Name      Sort by Party Name       ROSE PILEGGI       PUBLIC UTILITY COMMISSION OF OREGON PO BOX 1088 SALEM OR 97308-1088 rose.pileggi@puc.oregon.gov ALLIANCE OF WESTERN ENERGY CONSUMERS           BRADLEY MULLINS       MW ANALYTICS, ENERGY & UTILITIES LUMMINTIE 13 OULU FI-90460 brmullins@mwanalytics.com         CHAD M STOKES       CABLE HUSTON LLP 1455 SW BROADWAY STE 1500 PORTLAND OR 97201 cstokes@cablehuston.com AVISTA           PATRICK EHRBAR       AVISTA UTILITIES PO BOX 3727 SPOKANE WA 99220-3727 patrick.ehrbar@avistacorp.com         DAVID J MEYER       AVISTA CORPORATION PO BOX 3727 SPOKANE WA 99220-3727 david.meyer@avistacorp.com STAFF           MARLI KLASS       OREGON DEPARTMENT OF JUSTICE 1162 COURT STREET NE SALEM OR 97301-4096 marli.klass@doj.oregon.gov