X0303 4 2009-01-09 0 0000104918 AVISTA CORP AVA 0001332448 DURKIN MARIAN M 1411 E. MISSION AVENUE (MSC-12) SPOKANE WA 99202 0 1 0 0 Sr VP, General Counsel & CCO Common Stock - 2006 Restricted Stock Award 2009-01-09 4 S 0 265 19.1 D 25516 D Common Stock - 2007 Restricted Stock Award 2009-01-12 4 F 0 226 19.15 D 25290 D Common Stock - 2008 Restricted Stock Award 2009-01-12 4 F 0 402 19.15 D 24888 D Shares sold to pay income tax on final 1/3 of 2006 restricted shares that vested on 12/31/2008. Shares sold to pay income tax on second 1/3 of 2007 restricted shares that vested on 01/02/2009. Shares sold to pay income tax on first 1/3 of 2008 restricted shares that vested on 01/02/2009. /s/ Marian M. Durkin 2009-01-13