Northern Tier Energy

November 14, 2012 at 3:40AM

Headquarters: Ridgefield, Conn.

Business: Refines crude oil into fuel and other products at St. Paul Park refinery; has 166 company-operated and 67 franchised SuperAmerica stores in Minnesota and Wisconsin; stake in Minnesota pipeline.

History: Acquired refinery, pipeline and stores from Marathon Oil Corp. in 2010; initial public offering of master limited partnership units in July 2012.

Ticker: NTI

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