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Filing Details

Issuer

Cik	Name	Symbol	Sector (SIC)	IRS No
1533454	Northern Tier Energy Lp	NTI	Petroleum Refining (2911)	800763623

Insiders

Cik	Name	Reported Address	Insider Title	Director	Officer	Large Shareholder	Other
1227370	W Bernard Aronson	C/O Acon Investments Llc 1133 Connecticut Avenue, Nw, Ste 700 Washington DC 20036		Yes	No	No	No

Reported Non-Derivative Transactions

Sec. Name	Acquisiton - Disposition	Date	Amount	Price	Remaning Holdings	Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
Common Units	Disposition	2013-11-12	35,622,500	$0.00	0	No	4	S	Indirect	See footnotes

Equity Swap Involved	Form Type	Code	Nature of Ownership	Explanation
No	4	S	Indirect	See footnotes

Footnotes

The securities reported in this statement were held by Northern Tier Holdings LLC ("Holdings"). Northern Tier Investors, LLC ("Investors LLC") is the sole owner of the common interests in Holdings. The sole member of Investors LLC is Northern Tier Investors LP ("Investors LP"). The general partner of Investors LP is NTI GenPar LLC. ACON Refining Partners, L.L.C. ("Refining") owns 48.75% of the Class A common units in Investors LP and 50% of the limited liability company interests in NTI GenPar LLC. AIP V GenPar, L.L.C. ("GenPar") is the managing member of Refining. ACON Funds Management, L.L.C. ("Management") is the managing member of GenPar. Mr. Aronson is a managing member and equity holder of Management. Mr. Aronson disclaims beneficial ownership of the securities reported herein.
cont'd: Neither the filing of this statement nor anything herein shall be deemed an admission that Mr. Aronson is, for purposes of Section 16 of the Securities Exchange Act of 1934 or otherwise, the beneficial owner of any securities covered by this statement.
On November 11, 2013, Holdings contributed all of its common units of the Issuer to a wholly owned subsidiary, NT InterHoldCo LLC ("InterHoldCo"). On November 12, 2013, Holdings sold all of its membership interests in InterHoldCo to Western Refining, Inc. for an aggregate purchase price of $775,000,000. In connection with the disposition by Holdings, Mr. Aronson resigned from the Board of Directors of the Issuer.