A Rupert man is dead after a one vehicle rollover Tuesday near Oakley. 51-year-old Michael Dennis James Wolff died at the scene of the accident died at the scene at 1250 S. Idaho Highway 27.  The accident occurred at around 8:30 Tuesday morning. Wolff was driving a 2008 International truck belonging to Suburban propane in Twin Falls. Authorities say the vehicle left the left side of the roadway, rolled and struck a power poll. Traffic in the area was rerouted for about four hours while crews cleaned up the wreckage as well as a small amount of propane that had spilled during the ordeal. Police say Wolff was not wearing his seatbelt at the time of the accident.