UNITED STATES SECURITIES AND EXCHANGE COMMISSION

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of The Securities Exchange Act of 1934

~~The~~Date ~~Securities~~of ~~Exchange~~Report ~~Act~~— ofDecember 6, ~~1934~~2011

Date of Report — December 1, 2011

(Date of earliest event reported)

QUESTAR PIPELINE COMPANY

(Exact name of registrant as specified in its charter)

STATE OF UTAH		001-14147		87-0307414
(State or other jurisdiction of incorporation)		(Commission File No.)		(I.R.S. Employer Identification No.)

180 East 100 South, P.O. Box 45360, Salt Lake City, Utah 84145-0360

(Address of principal executive offices)

Registrant’s telephone number, including area code (801) 324-5173

Not Applicable

(Former name or former address, if changed since last report)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below):

o Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

o Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

o Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

o Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Item 8.01 Other Events.

~~Underwriting~~Senior ~~Agreement~~Notes

On December 16, 2011, Questar Pipeline Company (“QPC”) ~~entered~~completed ~~into~~a an underwriting agreement with J.P. Morgan Securities LLC and Wells Fargo Securities, LLC as representatives of each of the underwriters named on Schedule A thereto, relating to the issuance and sale by QPC in an underwritten public offering ~~(the “Offering”)~~ of $180~~,000,000~~.0 million in aggregate principal amount of its 4.875% Senior Notes due 2041 (the “Notes”). The ~~Offering~~sale isof ~~being~~the ~~made~~Notes ~~pursuant~~has tobeen amade ~~shelf~~under QPC’s registration statement filed with the Securities and Exchange Commission on Form S-3 (File No. 333-174877),. ~~which~~ QPC ~~filed~~intends ~~with~~to use the ~~Securities~~net ~~and~~proceeds ~~Exchange~~from ~~Commission (~~the ~~“SEC”)~~offering onof ~~June 14~~approximately $176.0 million, ~~2011~~after deducting the underwriting discount and ~~which~~estimated offering expenses, (i) to repay approximately $145.5 million of inter-company short-term debt owed to Questar Corporation, the ~~SEC~~parent ~~declared~~company ~~effective~~of onQPC, ~~July~~outstanding as of November 2730, 2011 with an interest rate of 0. ~~The~~35% ~~Notes~~at ~~will~~such bedate, ~~issued~~consisting ~~pursuant~~of amounts incurred to anrepay ~~indenture~~a ~~dated~~portion ~~August 17,~~of ~~1998~~$100 ~~among~~million of QPC’s ~~and~~long-term ~~Wells~~notes ~~Fargo~~that ~~Bank,~~matured ~~National~~in ~~Association,~~June 2011 aswith ~~successor~~an ~~trustee. The~~interest ~~closing~~rate of ~~the~~7.09% ~~Offering~~and is$80.0 ~~expected~~million toof ~~occur~~QPC’s onlong-term ~~December~~notes that matured in September 2011 with an interest rate of 6.57%, ~~2011~~and (ii) for other general corporate purposes, including working capital and capital expenditures.

~~Restated~~The ~~Articles~~terms of ~~Incorporation~~the Notes are governed by an indenture dated as of August 17, 1998 (the “Indenture”), between QPC and ~~Bylaws~~Wells Fargo Bank, National Association, as successor trustee (the “Trustee”), and an officers’ certificate setting forth the terms of the Notes, dated as of December 6, 2011 (the “Officers’ Certificate”). The Officers’ Certificate, including the form of the Notes, is filed herewith as Exhibit 4.1 and incorporated by reference herein. The Indenture is incorporated herein by reference to Exhibit 4.01 of our Registration Statement on Form S-3 (Registration No. 333-61621) filed with the Securities and Exchange Commission on August 17, 1998.

QPC inadvertently omitted from the exhibit index to its Form 10-K for the year ended December 31, 2010 a reference to its Restated Articles of Incorporation and its Bylaws, each of which are filed as Exhibits 3.1 and 3.2, respectively, to this report.

Item 9.01 Financial Statements and Exhibits.

(d) Exhibits.

Exhibit No.		Exhibit
1.1		Underwriting Agreement, dated December 1, 2011, by and among Questar Pipeline Company and the underwriters named on Schedule A thereto.
4.1		Officers’ Certificate, dated as of December 6, 2011 (including the form of Questar Pipeline Company’s 4.875% Senior Notes due 2041).
3.1*		Restated Articles of Incorporation dated November 17, 1995 (Exhibit No. 3. to Form 10-K Annual Report for 1995).
4.2		Indenture dated as of August 17, 1998 between Questar Pipeline Company and Wells Fargo Bank, National Association, as successor trustee (Incorporated by reference to Exhibit 4.01 of our Registration Statement on Form S-3 (Registration No. 333-61621) filed with the Securities and Exchange Commission on August 17, 1998).
3.2		Bylaws (as amended effective January 5, 2011).
5.1		Opinion of Thomas C. Jepperson, Esq.
5.2		Opinion of Latham & Watkins LLP.
23.1		Consent of Thomas C. Jepperson, Esq. (included in Exhibit 5.1 hereto).
23.2		Consent of Latham & Watkins LLP (included in Exhibit 5.2 hereto).

*Exhibit so marked has been filed with the SEC as part of the indicated filing and is incorporated herein by reference.

SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.

		QUESTAR PIPELINE COMPANY
		(Registrant)
December 5, 2011
December 6, 2011
		/s/ Kevin W. Hadlock
		Kevin W. Hadlock
		Executive Vice President and
		Chief Financial Officer

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