EX-25.3

Exhibit 25.3

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

FORM T-1

STATEMENT OF ELIGIBILITY UNDER
THE TRUST INDENTURE ACT OF 1939 OF A
CORPORATION DESIGNATED TO ACT AS TRUSTEE
Check if an Application to Determine Eligibility of
a Trustee Pursuant to Section 305(b)(2)___

U.S. BANK TRUST NATIONAL ASSOCIATION
(Exact name of Trustee as specified in its charter)

41-1973763
I.R.S. Employer Identification No.


300 East Delaware Avenue, 9^th Floor
Wilmington, Delaware		19801
(Address of principal executive offices)		(Zip Code)

Earl W. Dennison Jr.
U.S. Bank Trust National Association
One Federal Street, 3^rd Floor
Boston, MA 02110
Telephone (617) 603-6567
(Name, address and telephone number of agent for service)

SOUTHWEST CAPITAL TRUST II
(Exact name of obligor as specified in its charter)


Delaware		Applied For
(State or other jurisdiction of		(I. R. S. Employer
incorporation or organization)		Identification No.)

608 South Main Street
Stillwater, Oklahoma		74074
(Address of principal executive offices)		(Zip Code)

Southwest Capital Trust II Trust Preferred Securities

FORM T-1


Item 1.		GENERAL INFORMATION. Furnish the following information as to the Trustee.

Name and address of each examining or supervising authority to which it is subject.

Comptroller of the Currency
Washington, D.C.

Whether it is authorized to exercise corporate trust powers.

Yes


Item 2.		AFFILIATIONS WITH OBLIGOR. If the obligor is an affiliate of the Trustee, describe each such affiliation.

None


Items 3-15		The Trustee is a Trustee under other Indentures under which securities issued by the obligor are outstanding. There is not and there has not been a default with respect to the securities outstanding under other such Indentures.


Item 16.		LIST OF EXHIBITS: List below all exhibits filed as a part of this statement of eligibility and qualification.

	1.		A copy of the Articles of Association of the Trustee now in effect, incorporated herein by reference to Exhibit 1 of Form T-1, Document 6 of Registration No. 333-84320.

	2.		A copy of the certificate of authority of the Trustee to commence business, incorporated herein by reference to Exhibit 2 of Form T-1, Document 6 of Registration No. 333-84320.

	3.		A copy of the certificate of authority of the Trustee to exercise corporate trust powers, incorporated herein by reference to Exhibit 3 of Form T-1, Document 6 of Registration No. 333-84320.

	4.		A copy of the existing bylaws of the Trustee, as now in effect, incorporated herein by reference to Exhibit 4 of Form T-1, Document 6 of Registration No. 333-113995.

	5.		Not applicable.

	6.		The consent of the Trustee required by Section 321(b) of the Trust Indenture Act of 1939, incorporated herein by reference to Exhibit 6 of Form T-1, Document 6 of Registration No. 333-84320.

	7.		Report of Condition of the Trustee as of June 30, 2006, published pursuant to law or the requirements of its supervising or examining authority, attached as Exhibit 7.

	8.		Not applicable.

	9.		Not applicable.

SIGNATURE

Pursuant to the requirements of the Trust Indenture Act of 1939, as amended, the Trustee, U.S. BANK TRUST NATIONAL ASSOCIATION, a national banking association organized and existing under the laws of the United States of America, has duly caused this statement of eligibility and qualification to be signed on its behalf by the undersigned, thereunto duly authorized, all in the City of Boston, Commonwealth of Massachusetts on the 27th day of May, 2008.


	U.S. BANK TRUST NATIONAL ASSOCIATION
	By:	/s/ Earl W. Dennison Jr.
	Name:	Earl W. Dennison Jr.
	Title:	Vice President

Exhibit 7
U.S. Bank Trust National Association
Statement of Financial Condition
As of March 31, 2008

($000’s)


	3/31/2008
Assets
Cash and Balances Due From Depository Institutions	$	490,864
Fixed Assets		78
Intangible Assets		76,159
Other Assets		40,312

Total Assets	$	607,413

76,159
Liabilities

Other Liabilities	$	25,340

Total Liabilities	$	25,340

Equity
Common and Preferred Stock	$	1,000
Surplus		505,932
Undivided Profits		75,141

Total Equity Capital	$	582,073

Total Liabilities and Equity Capital	$	607,413

To the best of the undersigned’s determination, as of this date the above financial information is true and correct.


U.S. Bank Trust National Association

By:		/s/ Earl W. Dennison Jr.
		Name: Earl W. Dennison Jr.
		Title: Vice President

Date: May 27, 2008

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

FORM T-1

U.S. BANK TRUST NATIONAL ASSOCIATION
(Exact name of Trustee as specified in its charter)

41-1973763
I.R.S. Employer Identification No.


300 East Delaware Avenue, 9^th Floor
Wilmington, Delaware		19801
(Address of principal executive offices)		(Zip Code)

Earl W. Dennison Jr.
U.S. Bank Trust National Association
One Federal Street, 3^rd Floor
Boston, MA 02110
Telephone (617) 603-6567
(Name, address and telephone number of agent for service)

SOUTHWEST CAPITAL TRUST III
(Exact name of obligor as specified in its charter)


Delaware		Applied For
(State or other jurisdiction of		(I. R. S. Employer
incorporation or organization)		Identification No.)

608 South Main Street
Stillwater, Oklahoma		74074
(Address of principal executive offices)		(Zip Code)

Southwest Capital Trust III Trust Preferred Securities

FORM T-1


Item 1.		GENERAL INFORMATION. Furnish the following information as to the Trustee.

Name and address of each examining or supervising authority to which it is subject.

Comptroller of the Currency
Washington, D.C.

Whether it is authorized to exercise corporate trust powers.

Yes


Item 2.		AFFILIATIONS WITH OBLIGOR. If the obligor is an affiliate of the Trustee, describe each such affiliation.

None


Items 3-15		The Trustee is a Trustee under other Indentures under which securities issued by the obligor are outstanding. There is not and there has not been a default with respect to the securities outstanding under other such Indentures.


Item 16.		LIST OF EXHIBITS: List below all exhibits filed as a part of this statement of eligibility and qualification.

	1.		A copy of the Articles of Association of the Trustee now in effect, incorporated herein by reference to Exhibit 1 of Form T-1, Document 6 of Registration No. 333-84320.

	2.		A copy of the certificate of authority of the Trustee to commence business, incorporated herein by reference to Exhibit 2 of Form T-1, Document 6 of Registration No. 333-84320.

	3.		A copy of the certificate of authority of the Trustee to exercise corporate trust powers, incorporated herein by reference to Exhibit 3 of Form T-1, Document 6 of Registration No. 333-84320.

	4.		A copy of the existing bylaws of the Trustee, as now in effect, incorporated herein by reference to Exhibit 4 of Form T-1, Document 6 of Registration No. 333-113995.

	5.		Not applicable.

	6.		The consent of the Trustee required by Section 321(b) of the Trust Indenture Act of 1939, incorporated herein by reference to Exhibit 6 of Form T-1, Document 6 of Registration No. 333-84320.

	7.		Report of Condition of the Trustee as of June 30, 2006, published pursuant to law or the requirements of its supervising or examining authority, attached as Exhibit 7.

	8.		Not applicable.

	9.		Not applicable.

SIGNATURE


	U.S. BANK TRUST NATIONAL ASSOCIATION
	By:	/s/ Earl W. Dennison Jr.
	Name:	Earl W. Dennison Jr.
	Title:	Vice President

Exhibit 7
U.S. Bank Trust National Association
Statement of Financial Condition
As of March 31, 2008

($000’s)


	3/31/2008
Assets
Cash and Balances Due From Depository Institutions	$	490,864
Fixed Assets		78
Intangible Assets		76,159
Other Assets		40,312

Total Assets	$	607,413

76,159
Liabilities

Other Liabilities	$	25,340

Total Liabilities	$	25,340

Equity
Common and Preferred Stock	$	1,000
Surplus		505,932
Undivided Profits		75,141

Total Equity Capital	$	582,073

Total Liabilities and Equity Capital	$	607,413

To the best of the undersigned’s determination, as of this date the above financial information is true and correct.


U.S. Bank Trust National Association

By:		/s/ Earl W. Dennison Jr.
		Earl W. Dennison Jr.
		Vice President

Date: May 27, 2008

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

FORM T-1

U.S. BANK TRUST NATIONAL ASSOCIATION
(Exact name of Trustee as specified in its charter)

41-1973763
I.R.S. Employer Identification No.


300 East Delaware Avenue, 9^th Floor
Wilmington, Delaware		19801
(Address of principal executive offices)		(Zip Code)

Earl W. Dennison Jr.
U.S. Bank Trust National Association
One Federal Street, 3^rd Floor
Boston, MA 02110
Telephone (617) 603-6567
(Name, address and telephone number of agent for service)

SOUTHWEST CAPITAL TRUST IV
(Exact name of obligor as specified in its charter)


Delaware		Applied For
(State or other jurisdiction of		(I. R. S. Employer
incorporation or organization)		Identification No.)

608 South Main Street
Stillwater, Oklahoma		74074
(Address of principal executive offices)		(Zip Code)

Southwest Capital Trust IV Trust Preferred Securities

FORM T-1


Item 1.		GENERAL INFORMATION. Furnish the following information as to the Trustee.

Name and address of each examining or supervising authority to which it is subject.

Comptroller of the Currency
Washington, D.C.

Whether it is authorized to exercise corporate trust powers.

Yes


Item 2.		AFFILIATIONS WITH OBLIGOR. If the obligor is an affiliate of the Trustee, describe each such affiliation.

None


Items 3-15		The Trustee is a Trustee under other Indentures under which securities issued by the obligor are outstanding. There is not and there has not been a default with respect to the securities outstanding under other such Indentures.


Item 16.		LIST OF EXHIBITS: List below all exhibits filed as a part of this statement of eligibility and qualification.

	1.		A copy of the Articles of Association of the Trustee now in effect, incorporated herein by reference to Exhibit 1 of Form T-1, Document 6 of Registration No. 333-84320.

	2.		A copy of the certificate of authority of the Trustee to commence business, incorporated herein by reference to Exhibit 2 of Form T-1, Document 6 of Registration No. 333-84320.

	3.		A copy of the certificate of authority of the Trustee to exercise corporate trust powers, incorporated herein by reference to Exhibit 3 of Form T-1, Document 6 of Registration No. 333-84320.

	4.		A copy of the existing bylaws of the Trustee, as now in effect, incorporated herein by reference to Exhibit 4 of Form T-1, Document 6 of Registration No. 333-113995.

	5.		Not applicable.

	6.		The consent of the Trustee required by Section 321(b) of the Trust Indenture Act of 1939, incorporated herein by reference to Exhibit 6 of Form T-1, Document 6 of Registration No. 333-84320.

	7.		Report of Condition of the Trustee as of June 30, 2006, published pursuant to law or the requirements of its supervising or examining authority, attached as Exhibit 7.

	8.		Not applicable.

	9.		Not applicable.

SIGNATURE


	U.S. BANK TRUST NATIONAL ASSOCIATION
	By:	/s/ Earl W. Dennison Jr.
	Name:	Earl W. Dennison Jr.
	Title:	Vice President

Exhibit 7
U.S. Bank Trust National Association
Statement of Financial Condition
As of March 31, 2008

($000’s)


	3/31/2008
Assets
Cash and Balances Due From Depository Institutions	$	490,864
Fixed Assets		78
Intangible Assets		76,159
Other Assets		40,312

Total Assets	$	607,413

76,159
Liabilities

Other Liabilities	$	25,340

Total Liabilities	$	25,340

Equity
Common and Preferred Stock	$	1,000
Surplus		505,932
Undivided Profits		75,141

Total Equity Capital	$	582,073

Total Liabilities and Equity Capital	$	607,413

To the best of the undersigned’s determination, as of this date the above financial information is true and correct.


U.S. Bank Trust National Association

By:		/s/ Earl W. Dennison Jr.
		Name: Earl W. Dennison Jr.
		Title: Vice President

Date: May 27, 2008