SECURITIES AND EXCHANGE

Washington, D.C. 20549

Schedule 13G

UNDER THE SECURITIES EXCHANGE

(Amendment No. 17)

UNITED BANCORP INC MICH

(Name of Issuer)

COMMON STOCK

(Title of Class of Securities)

90944L103

                                (CUSIP Number)                                 

Check the following space if a fee is

(A fee is not required only if the filing person: (1) has a previous statement on file reporting beneficial ownership of more than five percent of the class of securities described in Item 1; and (2) has filed no amendment subsequent thereto reporting beneficial ownership of five percent or less of such class.) (See Rule 13d-7.)

* The remainder of this cover page shall be filled out for a reporting person’s initial filing on this form with respect to the subject class of securities, and for any subsequent amendment containing information which would alter the disclosures provided in the prior cover page.

The information required in the remainder of this cover page shall not be deemed to be “filed” for the purpose of Section 18 of the Securities Exchange Act of 1934 (“Act”) or otherwise subject to the liabilities of that section of the Act but shall be subject to all other provisions of the Act (however, see the Notes).

CUSIP 90944L103 SCHEDULE 13G

Under the Securities Exchange Act of 1934

1.	NAME OF REPORTING PERSON, S.S OR I.R.S.
	Comerica                 38-0477375
2.	CHECK THE APPROPRIATE LETTER IF A MEMBER OF A
	(a)  ¨
	(b)  ¨
3.	SEC USE ONLY
4.	CITIZENSHIP OR PLACE OF ORGANIZATION:
	Michigan Banking

NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH	5.    SOLE VOTING POWER:
	127,370
	6.    SHARED VOTING POWER:
	0
	7.    SOLE DISPOSITIVE POWER:
	6,203
	8.    SHARED DISPOSITIVE POWER:
	121,167

9.	AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH
	127,370
10.	CHECK THE SPACE BELOW IF THE AGGREGATE AMOUNT IN	¨
11.	PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW
	4.85%
12.	TYPE OF REPORTING:
	BK

SCHEDULE 13G

Under the Securities Exchange Act of 1934

Check the following space if a fee is being
Item		Name of Issuer:
		UNITED BANCORP INC MICH
Item		Address of Issuer’s Principal
		P.O. Box 248 Tecumseh, MI 49286
Item		Name of Person Filing:
		Comerica
Item		Address of Principal Business Officer, or
		One Detroit Center
Item		Citizenship:
		Michigan Banking
Item		Title of Class of Securities:
		COMMON STOCK
Item		Cusip Number:
		90944L103
Item 3:	This statement is filed in pursuant to Rules 13d-1(b), or 13d-2(b). The filing person is a Bank as defined in Section 3(a)(6) of the Act.

SCHEDULE 13G

Under the Securities Exchange Act of 1934

Item 4:	Ownership
	(a)	Amount Beneficially
		127,370
	(b)	Percent of Class:
		4.85%
	(c)	Number of Shares as to which
		(i)	sole power to vote or direct
			127,370
		(ii)	shared power to vote or
			0
		(iii)	sole power to dispose or direct
			6,203
		(iv)	shared power to dispose or
			121,167
Item 5:	Ownership of Five Percent of
	If this statement is being filed to report the fact that as of the date hereof the reporting person has ceased to be the beneficial owner of more than five percent of the class of securities, check the following:  x
Item 6:	Ownership of More than Five Percent on Behalf of Another Person.
Item 7:	Identification and Classification of the Subsidiary Which Acquired the Security being Reported on by the Parent Holding Company:
Item 8:	Identification and Classification of Members
Item 9:	Notice of Dissolution of Group:
Item 10:	Certification:

By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were acquired in the ordinary course of business and were not acquired for the purpose of and do not have the effect of changing or influencing the control of the issuer of such securities and were not acquired

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct

Date	2/21/2007
Comerica
By:	/s/ Heather Morrison
	Vice President