X0202 4 2005-04-11 0 0000075129 OTTER TAIL CORP OTTR 0001278053 MACFARLANE CHARLES S 215 S CASCADE ST FERGUS FALLS MN 56537-2801 0 1 0 0 President, Otter Tail Power Co Common Stock 2005-04-11 4 A 0 3000 24.93 A 6250 D Stock Options (right to buy) 24.93 2005-04-11 4 A 0 3000 24.93 A 2005-10-11 2015-04-10 Common Stock 3000 3000 D Shares of Common Stock acquired under the Corporation's Stock Incentive Plan, which is a grant of Restricted Stock. The 3,000 shares granted 4/11/05 have a grant price of $24.93 and vest at 25% yearly beginning 4/8/06. See below for other holdings: 1. Direct holding of 730 shares. 2. Direct holding of 4,648.2895 shares held in the Dividend Reinvestment Plan. 3. Direct holding of 3,431 shares which no longer carries the restriction. 4. Direct holding of 2,804.0879 shares held in the Employee Stock Purchase Plan. 5. Indirect holding of 501.2182 shares held by ESOP. 6. Indirect holding of 149.0214 shares held by his children in custodian accounts. 7. 10,000 stock options with expiration date of 12/9/2011. 8. 3,000 stock options with expiration date of 4/7/2012. 9. 8,000 stock options with expiration date of 4/13/2013. 10. 3,000 stock options with expiration date of 4/11/2014. /s/ Charles S MacFarlane by Debra J Lill -POA 2005-04-13