X0303 4 2010-08-11 0001057877 IDACORP INC IDA 0001362813 Keen Steven R 1221 W. IDAHO STREET BOISE ID 83702 0 1 0 0 VP of Finance & Treasurer Common Stock 2010-08-11 4 M 0 3000 22.92 A 18114 D Common Stock 2010-08-11 4 M 0 1880 31.21 A 19994 D Common Stock 2010-08-11 4 M 0 3840 29.75 A 23834 D Common Stock 2010-08-11 4 S 0 8720 35.7122 D 15114 D Common Stock (401-k) 6026.503 I Plan Trustee Employee Stock Option 22.92 2010-08-11 4 M 0 3000 0 D 2013-03-19 Common Stock 3000 0 D Employee Stock Option 31.21 2010-08-11 4 M 0 1880 0 D 2014-01-14 Common Stock 1880 0 D Employee Stock Option 29.75 2010-08-11 4 M 0 3840 0 D 2015-01-19 Common Stock 3840 0 D This transaction was executed in multiple trades at prices ranging from $35.47 to $35.98. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon request to the SEC staff, the issuer or a securityholder of the issuer full information regarding the number of shares and prices at which the transaction was effected. Total Shares in ESP as of 08/11/2010. Options vest 20% per year commencing on March 20, 2004 Options vest 20% per year commencing on January 15, 2005 Options vest 20% per year commencing on January 20, 2006 Patrick A. Harrington, Attorney-in-Fact 2010-08-13