Otter Tail Corp — Director's Dealing 2010

Feb 16, 2010

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: Otter Tail Corp (OTTR)
CIK: 0001466593
Period of Report: 2010-02-12

Reporting Person: MOUG KEVIN G (CFO & Treasurer)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2010-02-12	Common Stock	M	5678	—	Acquired	41837.6948	Direct
2010-02-12	Common Stock	F	1892	—	Disposed	39945.6948	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2010-02-12	Performance Rights	$	M	5678	Disposed		Common Stock (5678)	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	217.3106	Indirect
Common Stock	238.6488	Indirect

Footnotes

F1: The fair market value on date of grant 10/29/2007 was $35.84 with fair market value on vesting date of $20.575.

F2: Total direct holdings include shares jointly held with spouse representing shares from the Dividend Reinvestment Plan and the Employee Stock Purchase Plan and shares acquired pursuant to Restricted Stock Awards and Performance Award distributions.

F3: Performance Award: On 2/12/2010, 1,892 shares were withheld by the Corporation to pay taxes due upon vesting of this award, exempt pursuant to Rule 16b-3(e).

F4: This Performance Share Award had no conversion or exercise price established at the time of the grant.

F5: There is no specific "Exercisable Date" on this Performance Share Award.

F6: There is no specific "Expiration Date" on this Performance Share Award.