X0202 4 2004-09-14 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 2004-09-14 4 S 0 2 25.50 D 2011 D Common Stock 2004-09-14 4 S 0 316 25.48 D 1695 D Shares of Common Stock acquired under the Corporation's Stock Incentive Plan, which is a grant of Restricted Stock. Grant date of 8/2/99 with grant price of $43.50. 458 shares were lifted from restriction on 8/2/04, with 140 shares withheld to pay taxes and 318 issued to Mr. Koeck. A direct holding of 1,695 shares remain which no longer carries a restriction. See below for other holdings: 1. Indirect holding of 636.4095 shares held by ESOP. 2. Direct holding of 7,250 shares of Restricted Stock. 3. 2,500 stock options with expiration date of 8/2/2009. 4. 4,125 stock options with expiration date of 4/09/2010. 5. 20,000 stock options with expiration date of 4/8/2011. 6. 5,200 shares from performance award (1/1/04-12/31/06), with a grant date of 4/12/2004 and a price of $26.495. /s/ George A Koeck by Debra J Lill - POA 2004-09-15