Western Refining Acquires Ownership Interests in Northern Tier Energy LP

Western Refining Acquires Ownership Interests in Northern Tier Energy LP

Transaction Highlights:

  *Western acquires the general partner interest and a 38.7% limited
    partnership interest in Northern Tier Energy
  *Increases total refining capacity to 242,500 barrels per day
  *Diversifies and expands refining platform and scale
  *Results in direct pipeline access to four of the most prolific North
    American cost-advantaged crude oil producing regions: Permian, Bakken, San
    Juan, and western Canada
  *Expands Western's strategic opportunities to increase stakeholder value
    with both a variable distribution master limited partnership (NTI) and a
    traditional master limited partnership (WNRL)
  *Immediately accretive to Western's earnings and cash flow

EL PASO, Texas, Nov. 12, 2013 (GLOBE NEWSWIRE) -- Western Refining, Inc.
(NYSE:WNR) today announced that it has entered into a definitive agreement to
acquire ACON Investments' (ACON) and TPG's ownership interests in Northern
Tier Energy LP (NYSE:NTI) for a total consideration of $775 million.ACON and
TPG will receive the distribution on the common units that Western has
acquired with respect to the quarter ended September 30, 2013.As a result of
this transaction, Western owns Northern Tier Energy's general partner and
35,622,500 limited partner units, or approximately 38.7% of Northern Tier
Energy. The balance of the limited partner units will remain publicly traded.
The transaction was signed and closed on November 12, 2013.

Jeff Stevens, Chief Executive Officer and President of Western, said, "This
investment further enhances our strategic goal of expanding our refining
presence in areas with direct pipeline access to cost-advantaged crude oil
resources.By adding these strategically aligned assets to our business
portfolio, this transaction adds scale to our business and diversifies our
operations by adding a new geographic region to our refining platform.
Northern Tier Energy's St. Paul Park refinery is a very successful refinery
with pipeline access to cost-advantaged crude oil and refined product regions
that historically have generated strong product margins. The combined strength
and scale of the two organizations will provide future growth opportunities
for both companies over the long-term."

Hank Kuchta, Chief Executive Officer and President of Northern Tier Energy,
said, "We are excited to welcome Western as a new strategic partner and
investor that is committed, as much as we are, to Northern Tier Energy's
long-term success.We thank ACON and TPG for their support over the past three
years and we now look forward to working together with the Western Refining
team to maximize value for all of our stakeholders."

Assets Acquired Description

Northern Tier Energy's assets are located in the Upper Midwest region and
include the following:

  *St. Paul Park Refinery in St. Paul Park, Minnesota

    *89,500 barrels per day refining capacity

    *Processes 100% cost-advantaged crude oil – 75% light, 25% heavy

    *Pipeline access to Bakken and Canadian crude oil

  *17% interest in a 455,000 barrel per day crude oil pipeline
  *Products terminals, storage tanks, rail facilities and Mississippi river
    dockage
  *Retail assets which include the SuperAmerica retail channel

    *163 company operated convenience stores

    *74 franchised convenience stores

    *Located primarily in Minnesota and Wisconsin

As a result of the acquisition, Western's platform will include:

  *Refining capacity of 242,500 barrels per day
  *Pipeline access to cost-advantaged crude oil sources in the Bakken,
    Permian, San Juan, and western Canada regions
  *Wholesale distribution of approximately 160,000 barrels per day to
    customers in the Southwest, mid-Atlantic, and Upper Midwest
  *Integrated network of 458 retail convenience stores
  *Extensive crude oil and refined product logistics assets

Transaction Financing

Western financed the transaction with a $550 million Senior Secured Term Loan
B facility. The remainder of the transaction, including fees and expenses, was
funded with $245 million in cash from Western.

Pillsbury Winthrop Shaw Pittman LLP and Davis Polk & Wardwell LLP served as
Western's legal counsel. UBS Securities LLC acted as Western's financial
advisor in connection with the acquisition. Merrill Lynch, Pierce, Fenner &
Smith Incorporated and UBS Securities LLC acted as Joint Lead Arrangers for
the financing.

About Western Refining

Western Refining, Inc. is an independent refining and marketing company
headquartered in El Paso, Texas. The refining segment operates refineries in
El Paso, and Gallup, New Mexico. The Wholesale segment includes a fleet of
crude oil and finished product truck transports, and wholesale petroleum
products operations in Arizona, California, Colorado, Georgia, Maryland,
Nevada, New Mexico, Texas, and Virginia.The retail segment includes retail
service stations and convenience stores in Arizona, Colorado, New Mexico, and
Texas.

Western Refining, Inc. also owns the general partner and approximately 65
percent of the limited partner interest of Western Refining Logistics
Partners, LP (NYSE:WNRL) which owns and operates logistics assets related to
the terminalling, transportation, and storage of crude oil and refined
products.

More information about the Company is available at www.wnr.com.

Cautionary Statement on Forward-Looking Statements

This press release contains forward-looking statements covered by the safe
harbor provisions of the PSLRA. The forward-looking statements contained
herein include statements about the anticipated benefits of our acquisition of
the interests in Northern Tier Energy and its general partner described above
and our ability to achieve those benefits, including the impact of the
acquisition on our strategic opportunities to increase stakeholder value; our
earnings and cash flow; our strategic goal of expanding our refining presence
in certain areas; our scale and diversification; our future growth
opportunities; future cost-advantage of Permian, Bakken, San Juan, and western
Canadian crude oil and our access thereto; and maximization of value for our
and Northern Tier Energy's stakeholders. These statements are subject to the
general risks inherent in the Company's business. These expectations may or
may not be realized. Some of these expectations may be based upon assumptions
or judgments that prove to be incorrect. In addition, Western's business and
operations involve numerous risks and uncertainties, many of which are beyond
Western's control, which could result in Western's expectations not being
realized, or otherwise materially affect Western's financial condition,
results of operations, and cash flows. Additional information relating to the
uncertainties affecting Western's business is contained in the Company's
filings with the Securities and Exchange Commission. The forward-looking
statements are only as of the date made, and Western does not undertake any
obligation to (and expressly disclaims any obligation to) update any forward
looking statements to reflect events or circumstances after the date such
statements were made, or to reflect the occurrence of unanticipated events.

CONTACT: Institutional Investor and Analyst Contact:
         Jeffrey S. Beyersdorfer
         (602) 286-1530
        
         Individual Investor Contact:
         Alpha IR Group
         312-445-2870
         WNR@alpha-ir.com
        
         Media Contact:
         Gary W. Hanson
         (602) 286-1777

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