Northern Tier Energy LLC announced today that Neal E. Murphy will join the company as its Chief Financial Officer, effective immediately.

Northern Tier Energy LLC was formed last month, when ACON Investments and TPG Capital announced their agreement with Marathon Oil Corporation’s wholly owned subsidiary, Marathon Petroleum Company LP, to acquire the majority of Marathon’s Minnesota downstream assets. TPG Capital and ACON Investments formed Northern Tier Energy LLC to operate the assets. The transaction is expected to close before year-end, subject to customary closing conditions.

“Neal is a great addition to the Northern Tier Energy senior management team,” said Mario E. Rodriguez, Chief Executive Officer of Northern Tier Energy. “As a highly experienced CFO, he brings to our company a seasoned global perspective and an outstanding track record of building and managing financial organizations.”

Most recently, Mr. Murphy, 53, was Vice President and Chief Financial Officer of Sunoco Logistics Partners, L.P. Sunoco Logistics is a $7-billion, publicly held company engaged in the transport, terminalling and storage of refined products and crude oil and the purchase and sale of crude oil. At Sunoco, Mr. Murphy was a member of a five-person leadership team and led the Finance, Information Technology, Human Resources, and Investor Relations functions.

Prior to joining Sunoco Logistics, Mr. Murphy held Chief Financial Officer positions with Quaker Chemical Corporation, a global producer of industrial lubricants and coatings, from 2004 to 2007, and with International Specialty Products, a global producer of specialty chemicals, from 2002 to 2004. From 1989 to 2001, Mr. Murphy held financial positions in the United States for PQ Corporation, a world leader in soluble silicates and engineered glass materials, and also was president of PQ Corporation’s European operations. Mr. Murphy began his career in 1979 at Coopers & Lybrand, where he served for a decade with a client focus on utilities, energy and manufacturing.

Mr. Murphy received a BS degree in Accounting from Villanova University in 1979 and an MS degree in Taxation from Widener University in 1985. He also completed Harvard University’s 11-week International Executive Advanced Management Program. He is a Certified Public Accountant.

This announcement does not constitute or form part of an offer or solicitation of an offer to purchase or subscribe for securities in the United States or any other jurisdiction.