X0202 4 2007-10-29 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 Common Stock 2007-10-29 4 A 0 2100 35.84 A 2100 D Shares of Common Stock acquired under the Corporation's Stock Incentive Plan, which is a grant of Restricted Stock. The 2,100 shares granted 10/29/07 have a FMV of $35.84 and vest at 25% yearly beginning 4/8/08. See below for other holdings: 1. Direct holding of 4,534.5230 shares of Common Stock held in the Dividend Reinvestment Plan. 2. Indirect holding of 721.9254 shares of Common Stock held by ESOP. 3. 3,400 stock options with expiration date of 4/9/2011. /s/ George A Koeck by Debra J Lill -POA 2007-10-30