Northern Tier Energy LP Announces Pricing of Public Offering of 11,500,000 Common Units At $22.85

Northern Tier Energy LP NTI, a Delaware limited partnership ("Northern Tier Energy" or the "Partnership"), announced today that Northern Tier Holdings LLC (the "Selling Unitholder") will sell, subject to market conditions, 11,500,000 common units representing limited partner interests in the Partnership (the "Offering") at a price to the public of $22.85 per unit in a registered public offering. In addition, the Selling Unitholder has granted the underwriters a 30-day option to purchase up to an additional 1,725,000 units. The Partnership will not receive any proceeds from the sale of the common units in the Offering and the Offering has no dilutive effect as the number of common units outstanding will remain unchanged after the Offering. The Offering is expected to close August 19, 2013, subject to customary closing conditions. Barclays Capital Inc., BofA Merrill Lynch, Goldman, Sachs & Co., Citigroup, Credit Suisse Securities (USA) LLC, UBS Securities LLC, Deutsche Bank Securities Inc., and J.P. Morgan Securities LLC are acting as bookrunners for the Offering and Macquarie Capital (USA) Inc. and TPG Capital BD, LLC are acting as co-managers for the Offering. A shelf registration statement (including a prospectus) for the offering to which this communication relates was previously filed by the Partnership with the U.S. Securities and Exchange Commission ("SEC") and became effective on August 13, 2013. A preliminary prospectus relating to the offering has been filed with the SEC. The offering will be made only by means of a prospectus supplement and accompanying base prospectus.