hyperion

The future of the Hyperion oil refinery proposed for Southeastern South Dakota is now up in the air. The Texas based company did not extend its option to…

The future of the Hyperion oil refinery proposed for South Eastern South Dakota is now in question.The company did not extend its option to buy or acquire…

South Dakota’s Supreme Court is set to hear arguments this week on the campus of a Sioux Falls college. The high court hosts three days of oral arguments…