X0202 4 2005-12-19 0 0000075129 OTTER TAIL CORP OTTR 0001191494 MACFARLANE JOHN C 215 S CASCADE ST FERGUS FALLS MN 56537-2801 1 0 0 0 Common Stock 2005-12-19 4 G 0 1490 30.12 D 6661 D See below for other holdings: 1. Direct holding of 2,314 shares that are held jointly with his wife. 2. Direct holding of 23,460.2814 shares held in Dividend Reinvestment Plan. 3. Direct holding of 2,303.0926 shares held in Employee Stock Purchase Plan. 4. Direct holding of 3,100 shares which is a grant of Restricted Stock. 5. Indirect holding of 19,861.4102 shares held by ESOP. 6. Indirect holding of 3,375.9180 shares held by an IRA. 7. 52,000 stock options with expiration date of 2/22/2009. 8. 100,000 stock options with expiration date of 4/9/2010. 9. 100,000 stock options with expiration date of 4/8/2011. /s/ John C MacFarlane by Debra J Lill -POA 2005-12-21