CUSIP No. 242309102

	1.	Names of Reporting Persons. I.R.S. Identification Nos. of above persons (entities only) First National Bank Group, Inc.

	2.	Check the Appropriate Box if a Member of a Group (See Instructions)
		(a)		o
		(b)		x

	3.	SEC Use Only

	4.	Citizenship or Place of Organization Texas

Number of Shares Beneficially Owned by Each Reporting Person With			5.		Sole Voting Power 630,000

			6.		Shared Voting Power 0

			7.		Sole Dispositive Power 630,000

			8.		Shared Dispositive Power 0

	9.	Aggregate Amount Beneficially Owned by Each Reporting Person 630,000

	10.	Check if the Aggregate Amount in Row (9) Excludes Certain Shares (See Instructions) o

	11.	Percent of Class Represented by Amount in Row (9) 5.1%

	12.	Type of Reporting Person (See Instructions) CO

Item 1.
	(a)	Name of Issuer Southside Bancshares, Inc.
	(b)	Address of Issuer’s Principal Executive Offices 1201 South Beckham Tyler, Texas 75710

Item 2.
	(a)	Name of Person Filing First National Bank Group, Inc.
	(b)	Address of Principal Business Office or, if none, Residence 100 West Cano Edinburg, Texas 78539
	(c)	Citizenship Texas
	(d)	Title of Class of Securities Common Stock
	(e)	CUSIP Number 84470P109

Item 3.	If this statement is filed pursuant to §§240.13d-1(b) or 240.13d-2(b) or (c), check whether the person filing is a:
	Not Applicable.
	(a)	o	Broker or dealer registered under section 15 of the Act (15 U.S.C. 78o).
	(b)	o	Bank as defined in section 3(a)(6) of the Act (15 U.S.C. 78c).
	(c)	o	Insurance company as defined in section 3(a)(19) of the Act (15 U.S.C. 78c).
	(d)	o	Investment company registered under section 8 of the Investment Company Act of 1940 (15 U.S.C 80a-8).
	(e)	o	An investment adviser in accordance with §240.13d-1(b)(1)(ii)(E);
	(f)	o	An employee benefit plan or endowment fund in accordance with §240.13d-1(b)(1)(ii)(F);
	(g)	o	A parent holding company or control person in accordance with § 240.13d-1(b)(1)(ii)(G);
	(h)	o	A savings associations as defined in Section 3(b) of the Federal Deposit Insurance Act (12 U.S.C. 1813);
	(i)	o	A church plan that is excluded from the definition of an investment company under section 3(c)(14) of the Investment Company Act of 1940 (15 U.S.C. 80a-3);
	(j)	o	Group, in accordance with §240.13d-1(b)(1)(ii)(J).

Item 4.	Ownership
Provide the following information regarding the aggregate number and percentage of the class of securities of the issuer identified in Item 1.
	(a)	Amount beneficially owned: 630,000 shares
	(b)	Percent of class: 5.1% (based upon 12,265,061 shares outstanding as of July 25, 2006)
	(c)	Number of shares as to which the person has:
		(i)	Sole power to vote or to direct the vote 630,000
		(ii)	Shared power to vote or to direct the vote 0
		(iii)	Sole power to dispose or to direct the disposition of 630,000
		(iv)	Shared power to dispose or to direct the disposition of 0

Item 5.	Ownership of Five Percent or Less of a Class
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 o.

Item 6.	Ownership of More than Five Percent on Behalf of Another Person
	Not Applicable.

Item 7.	Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on By the Parent Holding Company or Control Person
	Not Applicable.

Item 8.	Identification and Classification of Members of the Group
	Not Applicable.

Item 9.	Notice of Dissolution of Group
	Not Applicable.

Item 10.	Certification

(a) Not Applicable.
(b) By signing below the undersigned certifies that, to the best of the undersigned’s knowledge and belief, the securities referred to above were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect.

Signature

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.

Dated: October 11, 2006	First National Bank Group, Inc.

	By:	/s/ Saul Ortega
	Name:	Saul Ortega
	Title:	Secretary/Treasurer

	UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
	Washington, D.C. 20549
	SCHEDULE 13G

o	Rule 13d-1(b)
x	Rule 13d-1(c)
o	Rule 13d-1(d)