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SPOKANE, Wash.--([ BUSINESS WIRE ])--Avista Corp. (NYSE: AVA) will hold its quarterly conference call and webcast to discuss fourth quarter 2011 results on Wednesday, Feb. 15, 2012, at 10:30 a.m. Eastern Time. A news release with fourth quarter 2011 earnings information will be issued at 7:05 a.m. Eastern Time on Feb. 15, 2012.

This call can be accessed at Avistaas Web site at [ www.avistacorp.com ], or you may listen to the call by dialing 866-825-1709 in the United States, Pass code 34817008.

A replay of the call will be available through Feb. 22, 2012. Call 888-286-8010, Pass code 51022022 to listen to the replay. The webcast will be archived for one year on the Avista Corp. Web site at [ www.avistacorp.com ].

Avista Corp. is an energy company involved in the production, transmission and distribution of energy as well as other energy-related businesses. Avista Utilities is our operating division that provides electric service to 358,000 customers and natural gas to 317,000 customers. Our service territory covers 30,000 square miles in eastern Washington, northern Idaho and parts of southern and eastern Oregon, with a population of 1.5 million. Avistaas primary, non-regulated subsidiary is Advantage IQ. Our stock is traded under the ticker symbol "AVA." For more information about Avista, please visit [ www.avistacorp.com ].

Avista Corp. and the Avista Corp. logo are trademarks of Avista Corporation.