Northern Tier Energy LP Announces Pricing of Public Offering of 12M Common Units

Northern Tier Energy LP NTI, a Delaware limited partnership ("Northern Tier Energy" or the "Partnership"), announced today the pricing of an underwritten public offering of 12,000,000 common units representing limited partner interests in the Partnership (the "Offering") held by Northern Tier Holdings LLC (the "Selling Unitholder") at a price to the public of $26.28 per unit. The common units are being sold in the Offering pursuant to a registration statement on Form S-1 previously filed with the Securities and Exchange Commission (the "Commission"). In addition, the Selling Unitholder has granted the underwriters a 30-day option to purchase up to an additional 1,800,000 common units. The Partnership will not receive any proceeds from the sale of the common units in the Offering. The Offering is expected to close on May 6, 2013, subject to customary closing conditions. Barclays Capital Inc., BofA Merrill Lynch, Goldman, Sachs & Co., Citigroup Global Markets Inc., 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. The Offering is being made only by means of a prospectus meeting the requirements of Section 10 of the Securities Act of 1933, copies of which, when available, may be obtained from: A registration statement relating to these securities has been filed with, and declared effective by, the Commission. The registration statement is available on the Commission's web site at http://www.sec.gov under the registrant's name, "Northern Tier Energy LP." This press release does not constitute an offer to sell or a solicitation of an offer to buy the securities described above, nor shall there be any sale of such securities in any state or jurisdiction in which such offer, solicitation, or sale would be unlawful prior to registration or qualification under the securities laws of any such state or jurisdiction. About Northern Tier Energy Northern Tier Energy is an independent downstream energy company headquartered in Ridgefield, CT with refining, retail, and pipeline operations serving the PADD II region of the United States. Northern Tier Energy was established to own and operate the St. Paul Park Refinery as well as a retail network of SuperAmerica brand convenience stores and a 17% equity interest in the Minnesota Pipe Line. Forward-Looking Statements