X0303 4 2009-11-16 0 0001466593 Otter Tail Corp OTTR 0001191492 MOUG KEVIN G 215 S CASCADE ST FERGUS FALLS MN 56537-2801 0 1 0 0 CFO & Treasurer Common Stock 2009-11-16 5 G 0 E 700 0.00 D 36141.6982 D Common Stock 214.5921 I ESOP Common Stock 235.6382 I By daughters Total direct holdings include shares jointly held with spouse in the Dividend Reinvestment Plan, shares acquired individually through the Employee Stock Purchase Plan and shares acquired pursuant to Restricted Stock Awards and Performance Award distributions. On July 1, 2009, Otter Tail Corporation (CIK #001466593) became the successor of Otter Tail Power Company (formerly Otter Tail Corporation CIK #0000075129) pursuant to an internal holding company reorganization. The reorganization resulted in Otter Tail Corporation's becoming a parent holding company of Otter Tail Power Company, but did not alter the proportionate interests of security holders. /s/ Kevin G Moug by Debra J Lill, Attorney-in-Fact 2009-11-17