X0202 4 2005-09-30 0 0000075129 OTTER TAIL CORP OTTR 0001191495 BROWN THOMAS M 215 S CASCADE ST FERGUS FALLS MN 56537-2801 1 0 0 0 Common Stock 2005-09-30 4 A 0 129 30.88 A 4744 D Shares of Common Stock acquired under the 1999 Stock Incentive Plan at fair market value as part of the Compensation Program for Outside Directors. 1,000 shares of this total are held in "street name" through Piper Jaffray. See below for other holdings: 1. Direct holding of 3,100 shares which is a grant of Restricted Stock. 2. Direct holding of 1,700 shares which no longer carries the restriction. 3. 2,000 stock options with expiration date of 4/9/2010. 4. 2,000 stock options with expiration date of 4/8/2011. /s/ Thomas M Brown by Debra J Lill -POA 2005-10-03