Exhibit 25.1

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)

WELLS FARGO BANK, NATIONAL ASSOCIATION

(Exact name of trustee as specified in its charter)

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

_____________________________

Questar Gas Company(Exact name of obligor as specified in its charter)

UTAH (State or other jurisdiction of incorporation or organization)	87-0155877 (I.R.S. Employer Identification No.)
333 South State Street P.O. Box 45433 Salt Lake City, Utah (Address of principal executive offices)	84145-0433 (Zip code)

_____________________________

Debt Securities

(Title of the indenture securities)

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
Exhibit 2.	A copy of the Comptroller of the Currency Certificate of Corporate
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 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 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 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 Los Angeles and State of California on the 11th day of May, 2012.

WELLS FARGO BANK, NATIONAL ASSOCIATION

/s/Maddy Hall

Maddy Hall

Vice President

EXHIBIT 6

May 11, 2012

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 therefor.

Very truly yours,

WELLS FARGO BANK, NATIONAL ASSOCIATION

/s/Maddy Hall

Maddy Hall

Vice President

EXHIBIT 7

Wells Fargo Bank National Association

of 101 North Phillips Avenue, Sioux Falls, SD 57104

And Foreign and Domestic Subsidiaries,

at the close of business March 31, 2012, 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		$	17,216
Interest-bearing balances		49,902
Securities:
Held-to-maturity securities		—
Available-for-sale securities		204,705
Federal funds sold and securities purchased under agreements to resell:
Federal funds sold in domestic offices		834
Securities purchased under agreements to resell		24,346
Loans and lease financing receivables:
Loans and leases held for sale		28,995
Loans and leases, net of unearned income	710,355
LESS: Allowance for loan and lease losses	15,934
Loans and leases, net of unearned income and allowance		694,421
Trading Assets		50,280
Premises and fixed assets (including capitalized leases)		7,788
Other real estate owned		4,449
Investments in unconsolidated subsidiaries and associated companies		579
Direct and indirect investments in real estate ventures		106
Intangible assets
Goodwill		21,276
Other intangible assets		23,076
Other assets		53,844
Total assets		$	1,181,817
LIABILITIES
Deposits:
In domestic offices		$	852,986
Noninterest-bearing	223,944
Interest-bearing	629,042
In foreign offices, Edge and Agreement subsidiaries, and IBFs		66,906
Noninterest-bearing	2,118
Interest-bearing	64,788
Federal funds purchased and securities sold under agreements to repurchase:
Federal funds purchased in domestic offices		10,453
Securities sold under agreements to repurchase		11,665

	Dollar Amounts In Millions
Trading liabilities	20,434
Other borrowed money
(includes mortgage indebtedness and obligations under capitalized leases)	38,145
Subordinated notes and debentures	18,384
Other liabilities	37,006
Total liabilities	$	1,055,979
EQUITY CAPITAL
Perpetual preferred stock and related surplus	—
Common stock	519
Surplus (exclude all surplus related to preferred stock)	99,458
Retained earnings	19,264
Accumulated other comprehensive income	5,478
Other equity capital components	—
Total bank equity capital	124,719
Noncontrolling (minority) interests in consolidated subsidiaries	1,119
Total equity capital	125,838
Total liabilities, and equity capital	$	1,181,817

I, Timothy J. Sloan, 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.

Timothy J. Sloan

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	Directors
Avid Modjtabai
Michael Loughlin