June 22, 2013:

Flint Hills Resources reported a power outage due to a storm at its Rosemount, Minn., refinery Friday, according to a filing to the U.S. National Response Center.The outage at the 320,000-barrel-a-day refinery caused a release of hydrogen sulfide, according to the filing, which was made public Saturday. The refinery is located about 17 miles south of Minneapolis, according to the company's website. A spokesman for Flint Hills Resources, a subsidiary of Koch Industries Inc., was not immediately available to comment.

By The Wall Street Journal