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

x CHECK IF AN APPLICATION TO DETERMINE ELIGIBILITY OF A TRUSTEE PURSUANT TO SECTION 305(b) (2)

WELLS FARGO BANK, NATIONAL ASSOCIATION

(Exact name of trustee as specified in its charter)

A National Banking Association	94-1347393
(Jurisdiction of incorporation or organization if not a U.S. national bank)	(I.R.S. Employer Identification No.)
101 North Phillips Avenue Sioux Falls, South Dakota	57104
(Address of principal executive offices)	(Zip code)

Wells Fargo & Company

Law Department, Trust Section

MAC N9305-175

Sixth Street and Marquette Avenue, 17^th Floor

Minneapolis, Minnesota 55479

(612) 667-4608

(Name, address and telephone number of agent for service)

FRONTIER OIL CORPORATION

(Exact name of registrant as specified in its charter)

Wyoming	74-1895085
(State or other jurisdiction of incorporation or organization)	(I.R.S. Employer Identification No.)
10000 Memorial Drive, Suite 600 Houston, Texas	77024-3411
(Address of principal executive offices)	(Zip Code)

(Registrant’s telephone number, including area code: (713) 688-9600)

SENIOR NOTES

TABLE OF SUBSIDIARY GUARANTOR REGISTRANTS

(Exact Name of Additional Registrant as Specified in its Charter) (1)	(State or Other Jurisdiction of Incorporation or Organization)	(I.R.S. Employer Identification Number)
Frontier Oil and Refining Company	Delaware	84-1018461
Frontier Refining & Marketing Inc.	Delaware	22-2899938
Frontier Holdings Inc.	Delaware	13-3504072
Frontier Refining Inc.	Delaware	22-2899378
Frontier El Dorado Refining Company	Delaware	91-2002334
Frontier Pipeline Inc.	Delaware	93-1023412
Ethanol Management Company	Colorado	84-0933639

(1) The address for each subsidiary guarantor registrant is 10000 Memorial Drive, Suite 600, Houston, Texas 77024-3411.

Item 1. General Information. Furnish the following information as to the trustee:

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

Comptroller of the Currency

Treasury Department

Washington, D.C.

Federal Deposit Insurance Corporation

Washington, D.C.

Federal Reserve Bank of San Francisco

San Francisco, California 94120

(b) Whether it is authorized to exercise corporate trust powers.

The trustee is authorized to exercise corporate trust powers.

Item 2. Affiliations with Obligor. If the obligor is an affiliate of the trustee, describe each such affiliation.

None with respect to the trustee.

No responses are included for Items 3-14 of this Form T-1 because the obligor is not in default as provided under Item 13.

Item 15. Foreign Trustee. Not applicable.

Item 16. List of Exhibits. List below all exhibits filed as a part of this Statement of Eligibility.

Exhibit 1. A copy of the Articles of Association of the trustee now in effect.*

Exhibit 2. A copy of the Comptroller of the Currency Certificate of Corporate Existence and Fiduciary Powers for Wells Fargo Bank, National Association, dated February 4, 2004.**

Exhibit 3. See Exhibit 2

Exhibit 4. Copy of By-laws of the trustee as now in effect.***

Exhibit 5. Not applicable.

Exhibit 6. The consent of the trustee required by Section 321(b) of the Act.

Exhibit 7. A copy of the latest report of condition of the trustee published pursuant to law or the requirements of its supervising or examining authority.

Exhibit 8. Not applicable.

Exhibit 9. Not applicable.

* Incorporated by reference to the exhibit of the same number to the trustee’s Form T-1 filed as exhibit 25 to the Form S-4 dated December 30, 2005 of Hornbeck Offshore Services LLC file number 333-130784-06.

** Incorporated by reference to the exhibit of the same number to the trustee’s Form T-1 filed as exhibit 25 to the Form T-3 dated March 3, 2004 of Trans-Lux Corporation file number 022-28721.

*** Incorporated by reference to the exhibit of the same number to the trustee’s Form T-1 filed as exhibit 25 to the Form S-4 dated May 26, 2005 of Penn National Gaming Inc. file number 333-125274.

SIGNATURE

Pursuant to the requirements of the Trust Indenture Act of 1939, as amended, the trustee, Wells Fargo Bank, 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 to be signed on its behalf by the undersigned, thereunto duly authorized, all in the City of Dallas and State of Texas on the 8th day of November, 2010.

WELLS FARGO BANK, NATIONAL ASSOCIATION

Patrick T. Giordano

Vice President

EXHIBIT 6

November 8, 2010

Securities and Exchange Commission

Washington, D.C. 20549

Gentlemen:

In accordance with Section 321(b) of the Trust Indenture Act of 1939, as amended, the undersigned hereby consents that reports of examination of the undersigned made by Federal, State, Territorial, or District authorities authorized to make such examination may be furnished by such authorities to the Securities and Exchange Commission upon its request thereof.

Very truly yours,

WELLS FARGO BANK, NATIONAL ASSOCIATION

Patrick T. Giordano

Vice President

EXHIBIT 7

Consolidated Report of Condition of

Wells Fargo Bank National Association

of 101 North Phillips Avenue, Sioux Falls, SD 57104

And Foreign and Domestic Subsidiaries,

at the close of business June 30, 2010, filed in accordance with 12 U.S.C. §161 for National Banks.

		Dollar Amounts In Millions
ASSETS
Cash and balances due from depository institutions:
Noninterest-bearing balances and currency and coin		$	18,090
Interest-bearing balances			59,995
Securities:
Held-to-maturity securities			0
Available-for-sale securities			136,426
Federal funds sold and securities purchased under agreements to resell:
Federal funds sold in domestic offices			1,213
Securities purchased under agreements to resell			4,560
Loans and lease financing receivables:
Loans and leases held for sale			26,936
Loans and leases, net of unearned income	697,216
LESS: Allowance for loan and lease losses	20,992
Loans and leases, net of unearned income and allowance			676,224
Trading Assets			32,627
Premises and fixed assets (including capitalized leases)			8,206
Other real estate owned			4,564
Investments in unconsolidated subsidiaries and associated companies			562
Direct and indirect investments in real estate ventures			122
Intangible assets
Goodwill			21,005
Other intangible assets			25,903
Other assets			56,847
Total assets		$	1,073,280
LIABILITIES
Deposits:
In domestic offices		$	719,242
Noninterest-bearing	153,912
Interest-bearing	565,330
In foreign offices, Edge and Agreement subsidiaries, and IBFs			97,865
Noninterest-bearing	1,563
Interest-bearing	96,302
Federal funds purchased and securities sold under agreements to repurchase:
Federal funds purchased in domestic offices			6,073
Securities sold under agreements to repurchase			14,292

	Dollar Amounts In Millions
Trading liabilities		15,806
Other borrowed money (includes mortgage indebtedness and obligations under capitalized leases)		45,602
Subordinated notes and debentures		21,152
Other liabilities		28,056
Total liabilities	$	948,088
EQUITY CAPITAL
Perpetual preferred stock and related surplus		0
Common stock		519
Surplus (exclude all surplus related to preferred stock)		98,774
Retained earnings		19,082
Accumulated other comprehensive income		5,510
Other equity capital components		0
Total bank equity capital		123,885
Noncontrolling (minority) interests in consolidated subsidiaries		1,307
Total equity capital		125,192
Total liabilities, and equity capital	$	1,073,280

I, Howard I. Atkins, EVP & CFO of the above-named bank do hereby declare that this Report of Condition has been prepared in conformance with the instructions issued by the appropriate Federal regulatory authority and is true to the best of my knowledge and belief.

Howard I. Atkins

EVP & CFO

We, the undersigned directors, attest to the correctness of this Report of Condition and declare that it has been examined by us and to the best of our knowledge and belief has been prepared in conformance with the instructions issued by the appropriate Federal regulatory authority and is true and correct.

John Stumpf Carrie Tolstedt Michael Loughlin Directors