X0202 4 2007-02-06 0 0000075129 OTTER TAIL CORP OTTR 0001191493 KOECK GEORGE A 215 S CASCADE ST FERGUS FALLS MN 56537-2801 0 1 0 0 Corp Secretary & Gen Counsel Performance Rights 2007-02-06 4 A 0 2600 A Common Stock 2600 2600 D This is a Performance Share Award and has no conversion or exercise price at this time. There is no specific "Exercisable Date" on this Performance Share Award. There is no specific "Expiration Date" on this Performance Share Award. The grant price of this award was based on fair market value at the time of the grant which was $26.495. Performance Share Award acquired under the 1999 Stock Incentive Plan. This award was reaffirmed at the Board of Directors meeting held 2/5/07 - 2/6/07 and is based on performance period of 1/1/2004 - 12/31/2006. See below for other holdings: 1. Direct holding of 1,550 shares of Common Stock which is a grant of Restricted Stock. 2. Direct holding of 1,668 shares of Common Stock which no longer carries the restriction. 3. Indirect holding of 703.0591 shares of Common Stock held by ESOP. 4. 20,000 stock options with expiration date of 4/8/2011. /s/ George A Koeck by Debra J Lill -POA 2007-02-08