X0202 4 2007-06-01 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 2007-06-01 4 G 0 1 33.08 D 7826 D See below for other holdings: 1. Direct holding of 1,765 shares of Common Stock held jointly with his wife. 2. Direct holding of 27,155.7965 shares of Common Stock held in the Dividend Reinvestment Plan. 3. Direct holding of 2,439.6881 shares held in Employee Stock Purchase Plan. 4. Direct holding of 4,500 shares which is a grant of Restricted Stock. 5. Indirect holding of 20,844.6371 shares held by ESOP. 6. Indirect holding of 3,441.2810 shares held by an IRA. 7. 26,000 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 2007-06-05