X0304 4 2012-03-13 0001057877 IDACORP INC IDA 0001362813 Keen Steven R 1221 W. IDAHO STREET BOISE ID 83702 0 1 0 0 Vice President and Treasurer Common Stock 2012-03-13 4 S 0 1923 41.3335 D 16757 D Common Stock (401-k) 6370.257 I By Trustee Total Shares in ESP as of 3/13/2012 This transaction was executed in multiple trades at prices ranging from $41.29 to $41.41. The price reported above reflects the weighted average sale price. The reporting person hereby undertakes to provide upon resquest to the SEC staff, the issuer or a security holder of the issuer full information regarding the number of shares and prices at which the transaction was effected. /s/Patrick A. Harrington, Attorney-in-Fact 2012-03-14