Northern Tier Energy LP Comments on EPA's Proposed Tier III Standards

    Northern Tier Energy LP Comments on EPA's Proposed Tier III Standards

PR Newswire

RIDGEFIELD, Conn., April 3, 2013

RIDGEFIELD, Conn., April 3, 2013 /PRNewswire/ -- Northern Tier Energy LP
(NYSE: NTI) ("Northern Tier Energy" or the "Company") is providing the
Company's current assessment on the EPA's proposed regulation that gasoline
contain no more than 10 parts per million of sulfur on an annual average basis
by January 1, 2017. Northern Tier Energy's Saint Paul Park Refinery produces
its gasoline in accordance with current regulatory standards and intends to
fully comply with any updated standards. Management's current assessment is
that the proposed updated standard will not have a material financial impact
to the Company. Preliminary engineering assessments predict that no capital
spending will be required to comply with the new standards.

About Northern Tier Energy

Northern Tier Energy LP (NYSE: NTI) is an independent downstream energy
company with refining, retail and pipeline operations that serves the PADD II
region of the United States. Northern Tier Energy operates an 84,500 barrels
per stream day refinery located in St. Paul Park, Minnesota. Northern Tier
Energy also operates 166 convenience stores and supports 70 franchised
convenience stores, primarily in Minnesota and Wisconsin, under the
SuperAmerica trademark, and owns a bakery and commissary under the SuperMom's
brand. Northern Tier Energy is headquartered in Ridgefield, Connecticut.

Forward-Looking Statements

This press release contains certain "forward-looking statements" which reflect
Northern Tier Energy's views and assumptions on the date of this press release
regarding future events. They involve known and unknown risks, uncertainties
and other factors, many of which may be beyond its control, that may cause
actual results to differ materially from any future results, performance or
achievements expressed or implied by the forward-looking statements. All
forward-looking statements speak only as of the date hereof. Northern Tier
Energy undertakes no obligation to update or revise publicly any such
forward-looking statements. Northern Tier Energy cautions you not to place
undue reliance on these forward-looking statements. Please refer to Northern
Tier Energy's filings with the SEC for more detailed information regarding
these risks, uncertainties and assumptions.

SOURCE Northern Tier Energy LP

Contact: Maria Testani, Director, Planning and Strategy (203) 244-6550
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