SEC FORM 4

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

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Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

1. Name and Address of Reporting Person^*

MACFARLANE CHARLES S

(Last)

(First)

(Middle)

215 S CASCADE ST

(Street)

FERGUS FALLS

56537-2801

(City)

(State)

(Zip)

2. Issuer Name and Ticker or Trading Symbol
OTTER TAIL CORP [ OTTR ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director	10% Owner
X	Officer (give title below)	Other (specify below)
	President, Otter Tail Power Co

3. Date of Earliest Transaction (Month/Day/Year)
04/10/2006

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	Amount	(A) or (D)	Price		6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
Common Stock	04/10/2006		F		771	D	$28.235	4,250⁽¹⁾	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	8. Price of Derivative Security (Instr. 5)		10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
Restricted Stock Units	⁽²⁾	04/10/2006		A		4,300		⁽³⁾	04/08/2010	Common Stock	4,300	$0.00	4,300⁽⁴⁾	D

Explanation of Responses:

1. Grants of Restricted Stock. On 4/10/2006, 771 shares were withheld by the Corporation to pay taxes due upon vesting of restricted stock, exempt pursuant to Rule 16b-3(e). 4,250 shares remain restricted. See below for other holdings: 1. Direct holding of 730 shares. 2. Direct holding of 5,241.4458 shares held in the Dividend Reinvestment Plan. 3. Direct holding of 4,660 shares which no longer carries the restriction. 4. Direct holding of 3,618.4073 shares held in the Employee Stock Purchase Plan. 5. Indirect holding of 642.3866 shares held by ESOP. 6. Indirect holding of 154.891 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. 11. 3,000 stock options with expiration date of 4/10/2015.

2. One for one.

3. These units vest 100% on 4/8/2010 based on continued employment.

4. These restricted stock units vest 100% on 4/8/2010 based on continued employment and carry no voting rights or rights to dividends prior to vesting date.

Remarks:

	/s/ Charles S MacFarlane by Debra J Lill -POA	04/12/2006
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
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